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Obasi Eu, Adeoye Rl
International Journal of Fisheries and Aquatic Studies, Volume 10, pp 61-65; https://doi.org/10.22271/fish.2022.v10.i5a.2733

Abstract:
This work studied the development of fish production in Nigeria looking at the contributions of capture and aquaculture fish production in Nigeria to the total Domestic annual fish production; the trend and balance in annual fish demand and domestic production in Nigeria. The growth accounting framework and time series data from 2006 to 2019 to project the viability of Nigeria domestic fishery sector. The study shows that the capture fishery maintained the highest contributor to the domestic fish production in Nigeria for the study period. It contributed over 75.00% of the total domestic fish production while Aquaculture subsector gained the highest growth rate among the subsectors. Its annual growth rate stood at 12.53% while the capture sector was seen to be declining in its contribution to the domestic fish production in Nigeria.
International Journal of Fisheries and Aquatic Studies, Volume 10, pp 36-42; https://doi.org/10.22271/fish.2022.v10.i5a.2727

Abstract:
Since, the mid fifties with the opening of the industrial trawl fishery in Cameroon, data collection system is based on landings and vessel captains’ statements and logbooks, difficult to use for stock assessment purpose and thus proper management. Various stocks assessments surveys conducted, show an overexploitation of the costal resource and the decrease of the resource base (Meke, 2015). Besides, the country is threatened by a self-ban of shrimp’s exports to EU countries since 2006 and yellow card due to INN fishing issues in 2021. This paper examines and suggest a fisheries monitoring model of the trawl fishing industry. Findings of the study indicate that boarding observers on vessels at sea will close the data gap necessary for effective fisheries management.The study recommends that Cameroon management authorities adopt the model.
Sampath M, Ganesh Muguli, Sameer Pai, Babu Uv
International Journal of Fisheries and Aquatic Studies, Volume 10, pp 101-106; https://doi.org/10.22271/fish.2022.v10.i5b.2730

Abstract:
A complete study was conducted through manufacturing of Microencapsulation of Basil Oil Powder (MEBOP) and Microencapsulation of Thyme Oil Powder (METOP) to evaluate the anti-bacterial activity against aquatic pathogens. An oil-in-water emulsion were prepared using gum with dextrin and the resultant matrix was spray dried with the average yield of 45% w/w of MEBOP and 50% w/w of METOP. Total oil content in the encapsulated powder in both were found to be 24.39% w/w of MEBOP 25.80% w/w of METOP respectively. Scanning Electron Microscopic (SEM) analysis was also done to confirm the encapsulation of oil and study possible structure of matrix. Microencapsulated powders were further subjected for antibacterial activity against aquaculture pathogens like Vibrio harvey, Vibrio parahaemolyticus, Bacillus cereus, Aeromonas sp, E. coli and Salmonella sp. Results were compared against the respective oils at different concentrations. Phyto- constituents from Basil oil and Thyme oil like Thymol, Linalool, and Methyl chavicol were quantified using HPLC (High-Performance Liquid Chromatography) and GC (Gas Chromatography) which may be responsible for this activity. Furthermore, stress studies were conducted at 60 °C to understand the stability of Encapsulated oil powders to this and its commercial usage in formulations.
Afroza Subrin, Istiaque Hossain, Nahid Sultana, Naznin Nahar, Mona Ashis Chowdhury
International Journal of Fisheries and Aquatic Studies, Volume 10, pp 213-219; https://doi.org/10.22271/fish.2022.v10.i4c.2715

Abstract:
The recent research work was carried out during the period June to December 2018 to evaluate the socio-economic status of fishermen of the Padma River under Rajshahi district. The socio-economic status of fishermen was conducted on the basis of their personal life and daily living elements. Findings of the present research work it can be seen that most of the fishermen were 31-40 years (52%), Maximum residents are Muslim (96%). The family size of fisher’s community is usually consisted of 57% of nuclear family. About 19.17% residents were high school pass and 22.5% had passed primary level. About 28.33% fishermen had can sign and 30% fishermen were illiterate. About 84.17%% fishermen were completely depending on fishing, 10.83% were occasional fisher’s with day labor and only 5% in fishing with other occupation. About 62.5% of fishermen took allopathic, 21.67% homeopathic, 13.33% herbal and 2.5% allopathic and homeopathic treatment.
Tanwi Dey, Piash Kumar Ghosh
International Journal of Fisheries and Aquatic Studies, Volume 10, pp 228-233; https://doi.org/10.22271/fish.2022.v10.i4c.2717

Abstract:
On-farm and cottage fish feed industries of three upazilas- Mymensingh Sadar, Trishal and Muktagacha in Mymensingh district were investigated to understand gender participation ratio, and to evaluate their socio-economic status and working environment. A total of 150 respondents were randomly interviewed where 60% of feed mill owners and workers were middle aged group. Relatively high average wage (9000-10,000 tk/month) found in Mymensingh sadar. However, others factors such as family size, income, socio-economic status etc. found similar among three studied areas. Among the surveyed fish feed industries, 53.33% industries produced feed for their own fish farm and 10% produced feed commercially. Locally available ingredients were used to prepare feed without scientific knowledge. Hundred percent workers claimed unhealthy working environment. A lower number of women participation observed in fish feed industries of studied areas. Therefore, government and non-govt. interference is necessary to encourage and motivate more women participation in aquaculture industries for sustainable economic development.
Komba J Konoyima, Lahai D Seisay, Percival At Showers
International Journal of Fisheries and Aquatic Studies, Volume 10, pp 22-27; https://doi.org/10.22271/fish.2022.v10.i5a.2725

Abstract:
865 specimens of Galeoides decadactylus were analysed for spawning, length-growth, mortality and exploitation rates in May-October 2020, to support with management information. Gonads were macroscopically assessed and total length-frequencies analysed from growth models in FiSAT II software. Gonadosomatic Index of the assessed stock peaked in October alongside Hepatosomatic Index, and attained first sexual maturity at lengths 19.8 cm (female) and 25.7 cm (male,). Infinity length (L∞) was 43.3 cm, growth rate (K), 0.34 yr-1), theoretical age (t0), -0.7 years, lifespan (tmax), 8.1 years and growth exponent (b), 2.78. Total (Z), natural (M) and fishing mortality (F) rates gave 1.58 year-1, 0.77 year-1 and 0.81 year-1 respectively, whereas the current exploitation rate (Ecurrent) was 0.51 year-1. The optimum fishing effort (Fopt) and fishing limit (Flimit) were 0.31 year-1 and 0.51 year-1 respectively. Results implied occurrence of major spawning in October, negative allometric growth, short lifespan and high fishing pressure on the stock. Recalibration of management measures is advised.
Wankio Tabitha Meremo, Omondi Reuben, Yasindi Andrew Wamalwa, Daniel Mungai Ndegwa
International Journal of Fisheries and Aquatic Studies, Volume 10, pp 206-212; https://doi.org/10.22271/fish.2022.v10.i4c.2714

Abstract:
Lake Victoria’s shallow bays are increasingly becoming vulnerable to degradation whose effects are manifested ecologically. The influence of water quality parameters on zooplankton distribution in four stations at Kisumu Bay of Lake Victoria in Kenya was estimated. Selected physic-chemical parameters were measured in-situ, while water samples for Chlorophyll a determination were collected. Zooplankton was sampled using conical plankton net. The shoreline station 1 exhibited significantly higher mean zooplankton species diversity and abundance (H’=2.23; 12.65±25.21 ind. L-1 respectively) compared to the offshore stations. Copepoda were the most abundant zooplankton across all the sampling stations while Rotifera constituted the highest species diversity with 14 species followed by Cladocera with 7 species. There were significant relationships between zooplankton abundance and water quality parameters. This study indicated that the water quality conditions observed may have resulted in suppression of some zooplankton species and favored species-specific abundance at the same time.
Tizhe Si, Peter Kj, Maradun Hf, Kutte Mm
International Journal of Fisheries and Aquatic Studies, Volume 10, pp 194-199; https://doi.org/10.22271/fish.2022.v10.i4c.2712

Abstract:
This study was carried out to ascertain the influence of fishing gear used by fisherfolks on the yield of fish in River Benue, Nigeria. The study was conducted in three fishing villages that are also landing sites. They are within Adamawa State axis with the Benue River passing through them. The selected villages are Boranji (Site 1), Damare (Site 2) and Hayin gada (Site 3). The study was conducted bi-monthly for three months from the month of July to September 2021. In the conduct of this study, both primary and secondary methods of data collection were used. A total of One Hundredand Forty (140) respondents were sampled with structured interview and questionnaire. The study showed that the fishing gears employed and operated in the study sites are used to capture different species of fish. Most prominent of the gearsu is the gill net and Malian trap. The study also revealed that Sixteen (16) fish species from seven (7) families were caught by the six artisanal fishing gears in all the sites. The study revealed the obvious neglect of the artisanal fisherfolks with regards to provision of infrastructural facilities despite the enormous contribution they give to the domestic fish output.
Boni Laurence, Aboua Benié Rose Danielle, Coulibaly Safiatou, Atse Boua Célestin, Kouamelan Essetchi Paul
International Journal of Fisheries and Aquatic Studies, Volume 10, pp 78-84; https://doi.org/10.22271/fish.2022.v10.i4a.2708

Abstract:
The distribution profile of fish populations has long been ignored but, it could provide solutions to sampling plans. 14404 fish specimens have been sampled at Layo, N’djem, Songon and Taboth (sector IV) and Ahua (sector V) using gillnets, castnets and commercial fish from February 2014 to January 2015. 57 species were collected. The “Self-Organizing Maps (SOM)” was used to order study sites according to species assemblages. The distribution profile of each of the taxa of the different groups defined by the SOM shows that group (I) composed of the stations of Songon and N'djem contains marine species with estuarine affinity. The second group (II) includes Layo station is distinguished by the presence of essentially continental species. The third group (III) with Taboth station is characterized by the strictly estuarine species. Group IV composed by Ahua station, is dominated by of estuarine species of marine origin or affinity.
Amrita Shaha, Anik Talukdar, Monoranjan Das
International Journal of Fisheries and Aquatic Studies, Volume 10, pp 85-91; https://doi.org/10.22271/fish.2022.v10.i4a.2709

Abstract:
Nutrition is the major crucial factor determining the potential of cultured fish to exhibit its genetic capability for growth. In this study, the impact of dietary vitamin E supplementation of fish feed on growth performance, feed conversion ratio and protein efficiency ratio of Gangetic Mystus (Mystus cavasius, Hamilton, 1822) were investigate. Total 150 number of young M. cavasius (weight 33.0±10.0 g) were used the CRD (completely randomized design) method with five treatments and three replications and fed with one of five diets for 45 days. Five different treatments (T0, T1, T2, T3 and T4) with three replication having different level of vitamin E such as 0 mg vitamin E/kg (Control-T0), 50 mg vitamin E/kg (T1), 100 mg vitamin E/kg (T2), 150 mg vitamin E/kg (T3) and 200 mg vitamin E/kg (T4). Feeds supplied at the rate of 5% for first two weeks, 4% for following two weeks and 3% of the body weight for the rest of the experimental period twice daily throughout the study period. At the end of the (15+30) 45 days study period, the highest mean final weight gain 15.65±0.10 in T2, whereas, the minimum final weight gain was 7.725±0.49 in T4. The body length of M. cavasius was not increased significantly (p˃0.05) at different doses of vitamin E supplementation. The food conversion ratio in treatment 0, 1, 2, 3 and 4 were 2.72±0.12, 2.41±0.14, 1.53±0.12, 2.68±0.09, and 3.11±0.10, respectively. Protein efficiency ratio (PER) were found highest (1.96±0.08) at T2 compared to T1 (1.25±0.09), T3 (1.12±0.11) T0 (1.11±0.10), and T4 (0.96±0.10), respectively. The specific growth rate (SGR%/day) in treatment 0, 1, 2, 3 and 4 were 0.79±0.05, 0.91±0.07, 1.37±0.10, 0.87±0.08 and 0.79±0.06, respectively. The best performance found for 100 mg vitamin E/kg containing feed could be the best for growth performance of Gangetic Mystus (Mystus cavasius).
Sonnie A Vedra, Ramon Francisco Q Padilla, Rafael J Vicente
International Journal of Fisheries and Aquatic Studies, Volume 10, pp 23-27; https://doi.org/10.22271/fish.2022.v10.i4a.2700

Abstract:
The species composition, abundance, diversity, evenness and similarity of the indigenous fish population inhabiting the upstream, midstream and downstream parts of Talabaan River system in Naawan, Misamis Oriental was determined. Specimens were collected using hand-held siene and cast nets. Total number of individuals of all fish species captured was 150, with 46 (30.66%), 57 (38.00%) and 47 (31.33%), respectively, recorded in the upstream, midstream, and downstream parts of the river. Eleven fish species were recorded in six families namely, Xiphophorus hellerii (44.67%), Sicyopterus lagocephalus (20.00%), Giuris margaritacea (8.00%), Glossogobius celebius (6.67%), Awaous melanocephalus (5.33%), Rhyacichthys aspro (5.33%), Glossogobius giuris (2.67%), Oreochromis niloticus (2.67%), Anguilla marmorata (2.00%), Gerres limbatus (1.33%), and Mesopristes cancellatus (1.33%). The 11 fish species might indicate that Talabaan River is a good freshwater ecosystem that could support their food and habitat requirements and other ecological needs. It is imperative therefore, that the river must be protected from overexploitation and pollution impacts. This is to sustain the economic and ecological benefits of this fishery resource for the present and future generations of Naawanons and nearby communities as well.
Tukura Echuano Eyiseh, Spell Ikponmwen Efe Gideon, Tkong Simon
International Journal of Fisheries and Aquatic Studies, Volume 10, pp 08-13; https://doi.org/10.22271/fish.2022.v10.i5a.2723

Abstract:
This research was carried out to ascertain the heavy metals concentrations in water and sediments from River Donga upstream and downstream was investigated for a period of three months (October to December). The Result showed heavy metals concentrations were higher in sediments compare to water during the study period while downstream values were generally higher compare to upstream. Result for mean concentration of heavy metals variations in water and sediment varied significant (p>0.05) based on the two sampling locations upstream and downstream. The heavy metals concentration in water and sediments was examined using atomic absorption spectrophometer (AAS) Bulk scientific Model 210VGP. Concentrations ranking profile was found to be Zn >Ni>Pb >Cr>Cd. The maximum mean concentration of Zn recorded in the sediment was 0.700 mg/kg while the lowest value of 0.029mg/kg was recorded for Pb at the two locations while for water value (0.200 mg/l) were observed for Zn, Ni, and Cr in the months of October November and December respectively. The lowest value of 0.014mg/1 at both locations was recorded for Cr. Data for Cr, Ni, Pb. Pb were generally low throughout the study period. Zn concentrations in water at the sampled locations (upstream and downstream) throughout the study periods showed no significant difference (p>0.05). However, Cd, Cr, Pb and Ni show variations (p
Mahima Sharma, Samiksha Lodhi, Aman Ahmed
International Journal of Fisheries and Aquatic Studies, Volume 10, pp 146-151; https://doi.org/10.22271/fish.2022.v10.i4b.2704

Abstract:
Uttar Pradesh is rich in freshwater fish biodiversity and shares about 14.68% of the total fish biodiversity in India. The main fisheries resources comprise of rivers, ponds, canals, irrigation, all fields, reservoirs etc. Rivers and canals encompass a total length of about 3945km. There are 251 hectares in the state for quality fish seed production. In freshwater aquaculture, prawns are potential candidates. Out of the 200 species of freshwater prawns, M. rosenbergii is most favourable cultured species due to its rapid growth and high demand in markets. Uttar Pradesh has ideal conditions for freshwater prawn aquaculture but it is not being utilized for sustainable culture. Smaller freshwater prawns “a untapped resource” may also be used for freshwater aquaculture. In the present study, an attempt has been made to review the current status of freshwater prawn aquaculture in Uttar Pradesh and and locally available freshwater prawns, M. lamarrei and M. dayanum as potential candidate for land locked state like U.P.
Bilong Bilong Charles Félix, Mbondo Jonathan Armel, Bassock Bayiha Etienne Didier, Bahanak Dieu Ne Dort
International Journal of Fisheries and Aquatic Studies, Volume 10, pp 42-69; https://doi.org/10.22271/fish.2022.v10.i4a.2705

Abstract:
The present paper aims to study the occurrence of monogenean species infecting the gills of wild Hemichromis elongatus (Pisces). Fish specimens were caught with nets, fixed in 10% formalin and then dissected. Monogenean specimens found were removed under a stereomicroscope with a needle, and then mounted between slide and cover slip in a drop of hematoxylin eosin. Among the five parasite species found, only O. voltaensis and C. euzeti were found infesting their host alone. There were significant differences between mono-parasitism and polyparasitism both in parasite load and infection rate, which were higher in simultaneous infestations. These monogenean ectoparasites best exploit their common host when they co-occur. This phenomenon observed in natural conditions is a threat in fish farming where high host densities favor parasite transmission. We therefore recommend quarantining native fish specimens captured in the wild, periodic pond sanitization and deworming.
Shariful Islam, Mohammad Ashaf-Ud-Doulah
International Journal of Fisheries and Aquatic Studies, Volume 10, pp 156-159; https://doi.org/10.22271/fish.2022.v10.i4b.2710

Abstract:
Temperature is an important environmental factor, plays significant role in the physiology of fish and aquatic ecosystem. In this study, we observed growth, hemato-biochemical parameters and water quality of calbasu, Labeo calbasu exposed to three different temperature regimes, such as 31, 34 and 37 °C respectively for 30 days. Two hundred and twenty fish were used, kept in 9 Aquarium, and were exposed to the different temperature. Highest body weight gain and lowest feed conversion ratio (FCR) was recorded at 31 °C. The highest specific growth rate was recorded at 31 °C followed by 34 °C and 37 °C. Survival at different acclimation temperatures was between 90.00±0.00, 90.0±0.00 and 88.00±0.00%, from lower to higher acclimation temperatures. Dissolved oxygen decreased and free CO2 increased significantly was found the study period. To determine the hemato-biochemical indices-hemoglobin (Hb) and blood glucose levels in the fish at each temperature. Hemoglobin (Hb) significantly decreased in response to temperature increases, while blood glucose levels displayed the opposite response. The present study revealed that high temperatures may be hazardous to Labeo calbasu.
Aiyelari Ta, Adeyeye Oh
International Journal of Fisheries and Aquatic Studies, Volume 10, pp 154-160; https://doi.org/10.22271/fish.2022.v10.i3b.2689

Abstract:
An experiment was carried out to determine the growth performance and serum composition of hybrid catfish Heteroclarias fed Moringa oleifera leaf meal based diet as a feed additive.At the start of the experiment, twelve glass aquaria of size 70cm x 45cmx 40cm each filled with well water up to 70% of its volume were stocked with 120 fingerlings (mean weight 2.2 ± 0.04) at 30 fish per treatment, replicated thrice in a completely randomized design. Four experimental diets (D1–D4) including the control were formulated to be isocalorific (12.2kcal/kg) and isonitrogenous (40% crude protein) the fish were fed twice daily at 8:00 – 9:00 and 18:00 – 19:00 hours at 5% of their body weight. The body weights were determined weekly for a period of ten weeks. About 2ml of blood were collected by direct cardiac puncture before and after the experiment into the sterile plastic test tubes without anticoagulant. The fish weight gain (WG), feed conversion ratio (FCR), specific growth rate (SGR), protein efficiency ratio (PER), protein intake (PI), survival and mortality were determined. After 70 days of the experiment, the highest fish weight gain and best results in food conversion ratio (FCR) were obtained in D2 formulated with 10% Moringa oleifera leaf meal (8.26 ± 0.13g, 2.45 ± 0.04) respectively. The final weight gain, feed intake and specific growth rate were significantly higher (P
Ibnu Dwi Buwono, Iskandar Iskandar, Yuniar Mulyani, Ersyad Prayoga Laksono
International Journal of Fisheries and Aquatic Studies, Volume 10, pp 46-49; https://doi.org/10.22271/fish.2022.v10.i3a.2685

Farhan Muharam Saleh, Zahidah Hasan, Ibnu Dwi Buwono, Herman Hamdani
International Journal of Fisheries and Aquatic Studies, Volume 10, pp 60-71; https://doi.org/10.22271/fish.2022.v10.i3a.2690

Abstract:
The purpose of this study was to determine the plankton community structure as a reference for the management of Situ Cibeureum. This research was conducted on September to November 2021. This study used a survey method with purposive sampling. The plankton community structure in Situ Cibeureum consists of 13 classes, 9 classes of phytoplankton and 4 classes for zooplankton. The abundance of phytoplankton 195 Ind/L – 310 Ind/L and zooplankton 25 Ind/L – 41 Ind/L. The Simpson phytoplankton diversity index value was ranged 0.45±0.29 – 0.60±0.19 and 0.62±0.21 – 0.76±0.07 for zooplankton while the phytoplankton dominance index was ranged 0.40±0.19 – 0.55±0.29 and 0.62±0.21 – 0.76±0.07 for zooplankton. The total biomass of phytoplankton in Situ Cibeureum was 43,433.26 µg/l. Based on the plankton community structure, Situ Cibeureum is categorized as good for supporting fishery activities and one type of activity that might be developed in Situ Cibeureum is restocking tilapia (Oreochromis niloticus).
Suneetha Nuthakki, Sumanth Kumar Kunda
International Journal of Fisheries and Aquatic Studies, Volume 10, pp 149-153; https://doi.org/10.22271/fish.2022.v10.i2b.2667

Abstract:
In recent years Aquaculture production has grown enormously, Litopenaeus vannamei (white leg shrimp) species have been introduced to many coastal states of India. Andhra Pradesh is the second-largest producer, where approximately 70% of Litopenaeus vannamei consumed globally is farmed. The present study determined the Socio-economic profile of the shrimp farmers of the state was studied using an interview schedule. For this study, data was collected from three southern coastal Andhra districts. It was revealed that most of 51.12% of farmers are middle age, young age is 24.44% and old age is 24.44%, while in unorganized respondents, most of the farmers were 52.22% middle age, old age 38.89% and very poor are young age farmers 8.89%. It is observed that 28.89% in organized respondents have a primary school education, 24.44% were high school education, 23.33% can read and write, 15.56% were graduates and 7.78% were intermediate education level, while in unorganized respondents 22.22% can read and write, 21.11% primary school, 20% illiterates, 17.78% high school education, graduates are 13.33% and intermediate education was 5.56%. and it is clear that in organized respondents 65.56% were nuclear and 34.44% were joint family type, while unorganized respondents nuclear and joint were 77.785 and 22.22% respectively. It was concluded that the forward communities and SC/ST category, both in organized and unorganized farmers shows less interest in vannamei culture when compared with backward communities. Small-scale farmers were unorganized and most of the farmers did not have access to technological innovations and scientific applications.
Nitesh Kumar Mehta, Arti Kumari
International Journal of Fisheries and Aquatic Studies, Volume 10, pp 128-132; https://doi.org/10.22271/fish.2022.v10.i3b.2683

Abstract:
Darbhanga is known as city of ponds. The current investigation was undertaken the study of the physico-chemical conditions of two perennial fish ponds- Harahi Talab and Maharani Pokhar of Darbhanga city. Present study revealed that physico-chemical parameters were comparatively higher of Harahi Talab to other pond, Maharani Pokhar. The water samples were analyzed for water temperature, transparency, TDS, pH, free CO2, chloride, carbonate, bicarbonate, magnesium, dissolved oxygen (DO) and biological oxygen demand (BOD). Higher value of physico-chemical parameters BOD, is considered to be sewage water pollution indicator for eutrophication and it also lower down the fish production.
International Journal of Fisheries and Aquatic Studies, Volume 10, pp 116-121; https://doi.org/10.22271/fish.2022.v10.i2b.2651

Abstract:
The river is one of the major sources of the rich variety of fish species. Fishes are an important source of human protein. Fish plays a crucial role in the economic development of different countries. The current investigation deals with the fish diversity of the Subarnarekha river of Paschim Medinipur district, West Bengal from November 2020 to January 2022. Total 50 fish species under 13 orders, 21 families, and 35 genera have been recorded during the investigation period. The order Cypriniformes (46.40%) was dominant followed by Anabantiformes (20.92%), Siluriformes (16.47%) and Perciformes (5.49%). The Cyprinidae family represented the highest number of fish species (46.40%) followed by the family Channidae (10.98%) and Siluridae (4.44%). Out of 50 fish species 43 species Least Concern, 4 species Near Threatened, and 3 species vulnerable category.
Ibrahim Mi, Ibrahim Y, Abdullahi Am, Najibullah Ba, Obi Pu, Mohammed Ym
International Journal of Fisheries and Aquatic Studies, Volume 10, pp 38-40; https://doi.org/10.22271/fish.2022.v10.i2a.2654

Abstract:
In Nigeria, Fish serves as the affordable source of animal protein where most individuals consumes smoke fish as food delicacy. This study was carried out to identify and ascertain the bacteria contamination of smoked catfish sold at Bida modern market Northcentral Nigeria. A total of Fifty (50) samples of smoked Catfish were purchased from fish traders in the market. The fish samples were analyzed using standard bacteria techniques and procedures. The result shows mean bacterial loads of 184 colonies with a population of 1.84 × 106 Cfu/g. A total of seven (7) species of bacteria were isolated from the sampled. The bacteria species consist of four (4) gram positive bacteria and three (3) gram negative bacteria. The bacteria isolate encountered in this study were Staphylococcus aureus, Staphylococcus epidermidis, Bacillus sp., Micrococcus sp., Escherichia coli, Salmonella sp. and Proteus mirabilis. The study revealed that smoked catfish sold in Bida modern market are contaminated by different groups of bacteria which could be due to the unhygienic nature of the market and the fish handlers. The presence and abundance of this groups of bacteria in smoked catfish fish could result into food poisoning which is a matter of public health concern.
Chinnababu Sanapala, Lakshmi Chaya Pedda, Kandrakunta Babu, Sandeep Paidi, Kanti Priya K
International Journal of Fisheries and Aquatic Studies, Volume 10, pp 122-124; https://doi.org/10.22271/fish.2022.v10.i2b.2653

Abstract:
The fish fauna of Madduvalasa reservoir Vangara Mandalam in Srikakulam District, Andhra Pradesh were collected for the present study. The results of present study confirmed the occurrence of 31 species of fishes belonging to 5 orders, 21 genera of 13 families. The order Cypriniformes was dominant with 14 species followed by order Siluriniformes with 7 species. While the order Perciformes were represented with 6 species and Channiformes with 3 species was represented with one species. Thus the reservoir was good potential for fish fauna.
Gs Yarou, P Babadankpodji, Pk Houndonougbo, E Michikpe, A Mama, Ga Mensah, A Chikou
International Journal of Fisheries and Aquatic Studies, Volume 10, pp 56-63; https://doi.org/10.22271/fish.2022.v10.i1a.2636

Abstract:
The Clarias is consumed in Africa and Benin. Despite its important role in food, its sector is subject to many constraints, including marketing in Nigeria. The objective of this study is to assess the marketing of smoked Clarias in southern Benin in the face of the Nigerian border closure. It is made in the Oueme department. Individual surveys based on structured questionnaires were conducted with 30 fish farmers and 45 processors. From the results obtained, three Nigerian markets are known for the sale of smoked Clarias, of which Badagri is the main destination. The actors in this activity are mostly adults with an average experience over 20 years. Fish farming is mainly the prerogative of men (83.33%) while processing and marketing are the only privilege of women (100%). The closure of the Nigerian border has led to a decrease in the annual fish production of the respondents from 8,960 kg to 7,491.96 kg as well as a decrease in the quantity of smoked fish from 6,249.24 kg to 2,319.96 kg after the border closure. The study shows a decline in the level of income of fish farmers and commercial processors, especially in the achievement of food security in their households. The marketing of smoked fish in Nigeria appears to be a profitable activity for processors.
Yaswanthkumar S, Raja S, Kannan K, Nagasundar S
International Journal of Fisheries and Aquatic Studies, Volume 10, pp 112-115; https://doi.org/10.22271/fish.2022.v10.i1b.2627

Abstract:
The epidermal mucus secreted by the epidermal cells of Bagridae fishes help to reduce the body friction against the water, play a vital role in maintaining the homeostasis and innate immune system to prevent the entry of invading pathogens. A preliminary investigation was carried out to isolate the epidermal mucus from two endemic and endangered Catfish species of Western Ghats viz., Hemibagrus punctatus and Sperata aorides. The isolated epidermal mucus of two catfishes were subjected to FT-IR analysis to find out the functional groups present in the mucus. The result of the present study revealed that the functional groups present in the mucus samples of two species are slightly varied. The alcohol as OH stretch at peak value 3900 – 3300cm-1, primary amide is present as C═O stretching of proteins at 1643cm-1 and secondary amide is present as N–H bending and C–N stretching of proteins at 1550 cm-1, alkane as C=C bending at 680-670 cm-1, halo compounds and iodo compounds as C-Br / C-Cl and C-I stretching at 670 – 400 cm-1 are present in the epidermal mucous of the catfishes.
Aghoghovwia Oa, Iluma Ug, Kwen K, Obomunu B
International Journal of Fisheries and Aquatic Studies, Volume 10, pp 01-08; https://doi.org/10.22271/fish.2022.v10.i1a.2620

Abstract:
The study examined Gillnet Fisheries around Polaku and Koroama Communities in the Lower Taylor Creek, Bayelsa State, Nigeria. The instrument of the study was a structured questionnaire. A total of 100 gillnet fishers was randomly selected from the study area. Fishes caught were identified to species level using field identification guide. Data collected were analyzed using simple percentages, frequency count and Mean (X). The results show a dominance of males (95.0%) over females (5.0%) in gillnet fisheries in the study area. Majority (43.0%) of fishers fell within the agile and economically active age brackets of 30-39 years. More than half (62.0%) of the fishers are married, 25.0% are single, 6.0% are divorced and 7.0% widowed. Majority of fishers (44.0%) had primary education while none had tertiary education. Eighty percent of fishers are from Polaku and 20.0% from Koroama. Thirty-nine percent of fishers use bottom gillnets, 35.0% drift gillnets and 26.0% surface gillnets in the study area. The mesh size of nets ranged from 2” to 5”. Species from the family Alestidae was the most abundant (15.7%) and the family Notopteridae was the least abundant (0.8%). Between 10 to 20 hours are spent by the fishers in fishing and daily catch quantity ranges between 20 to 40kg. Generated weekly income ranged below N35, 000 to N63, 000. The challenges encountered by the fishers include lack of storage facilities and destruction of fishing gears by maritime vessels operating in the area. It was thus recommended that government should provide storage facilities and regulate maritime vessel operation in the area.
Sanjay Dey, Ashis Kumar Panigrahi
International Journal of Fisheries and Aquatic Studies, Volume 10, pp 119-124; https://doi.org/10.22271/fish.2022.v10.i1b.2630

Abstract:
West Bengal is surrounded by many rivers. Rivers plays a decisive role in freshwater habitat and connects with ocean. But fish diversity knowledge is inadequate in different rivers of West Bengal. West Bengal provides 7.5% of resources of water of the country. West Bengal is fulfilled with many resources of water like, beel, pond, rivers. Freshwater diversity in rivers may loss due to anthropogenic effect and also by pollution. Besides this exploitation and change of climate are another major cause of biodiversity loss. Decreasing trend of fish diversity is a aggregate approach to conservation of fish diversity. For this reason riverine fishes are the threatened taxa. But less effort have been dedicated for conservation of river fishes this review helps to understand fish species in south and north Bengal rivers in West Bengal.
Yaswanthkumar S, Raja S, Kannan K, Nagasundar S
International Journal of Fisheries and Aquatic Studies, Volume 10, pp 112-115; https://doi.org/10.22271/fish.2022.v10.i1c.2627

Abstract:
The epidermal mucus secreted by the epidermal cells of Bagridae fishes help to reduce the body friction against the water, play a vital role in maintaining the homeostasis and innate immune system to prevent the entry of invading pathogens. A preliminary investigation was carried out to isolate the epidermal mucus from two endemic and endangered Catfish species of Western Ghats viz., Hemibagrus punctatus and Sperata aorides. The isolated epidermal mucus of two catfishes were subjected to FT-IR analysis to find out the functional groups present in the mucus. The result of the present study revealed that the functional groups present in the mucus samples of two species are slightly varied. The alcohol as OH stretch at peak value 3900 – 3300cm-1, primary amide is present as C═O stretching of proteins at 1643cm-1 and secondary amide is present as N–H bending and C–N stretching of proteins at 1550 cm-1, alkane as C=C bending at 680-670 cm-1, halo compounds and iodo compounds as C-Br / C-Cl and C-I stretching at 670 – 400 cm-1 are present in the epidermal mucous of the catfishes.
Jamilatunisa Anwar, Yayat Dhahiyat, Herman Hamdani
International Journal of Fisheries and Aquatic Studies, Volume 9, pp 29-33; https://doi.org/10.22271/fish.2021.v9.i2a.2436

Abstract:
Citarum River was known as the dirtiest river in the world in 2009, it was caused by the increase in population growth around the Citarum River, which damaging the river and the surrounding environment. This research was conducted at 4 stations, namely 1.Situ Cisanti; 2.Wangisagara; 3.Majalaya; and 4.Sapan, by using purposive sampling method and descriptive quantitative analysis method to determine the level of water pollution in the Upstream Citarum River based on the family biotic index of macrozoobenthos. The results showed that the level of water pollution in the Upstream Citarum River was light to severe. The FBI value of the Upstream Citarum River ranges from 3,95-5,85. Station 1 and station 2 have slightly bad water criteria with each FBI value is 5,85 and 5,77, station 3 has an FBI value of 3,95 with very good water criteria, and station 4 has an FBI value of 5,63 with sufficient water criteria.
Rayori Douglas, Getabu Albert, Omondi Reuben, Orina Paul, Babu Jared, Gisacho Boniface, Omondi Argwings
International Journal of Fisheries and Aquatic Studies, Volume 9, pp 299-306; https://doi.org/10.22271/fish.2021.v9.i3d.2505

Abstract:
Phytoplanktons are free-floating microscopic plants in water and they are the primary producers providing food to aquatic organisms. However, water quality affects the species production and assemblage in terms of diversity, composition, and abundance. This study assessed the spatial and temporal diversity and abundance of phytoplanktons in the Gusii wastewater treatment plant. A total of 124 phytoplankton species were identified and belonged to six families: Euglenophyceae, Bacillariophyceae, Dinophyceae, Cyanophyceae, Chlorophyceae, and Zygnemophyceae. The phytoplankton biovolume was 385.24mm3/L, with the family Euglenophyceae contributing the largest percentage. The species diversity index (H’) was generally low (H’ = 1.759 and 0.7596) in the effluent and influent respectively, indicating a considerable increase in diversity as the wastewater undergoes treatment. The low diversity was attributed to changes in physical, chemical, and biological environmental conditions. The effluent was richer in species, with a value of 5.829, while the influent was the least with 3.409. The low phytoplankton diversity in the wastewater treatment plant was influenced by the physicochemical parameters. It is therefore recommended that the quality of the wastewater during treatment needs to be monitored continuously for quality as baseline information to guide stakeholders and to ensure sustainability for the Gusii wastewater lagoon ecosystem health.
Bhaskar Mahanayak, Ashis Kumar Panigrahi
International Journal of Fisheries and Aquatic Studies, Volume 9, pp 253-259; https://doi.org/10.22271/fish.2021.v9.i3d.2491

Abstract:
Fisheries in India has high potential for economic growth, nutritional security and socioeconomic development. This country is bestowed with diverse fishery resources. Traditionally, the fishery activities have been performed by fishermen through generations in this country and for collective production and better management of fishery activities, fishermen cooperatives have been formed.The fishermen cooperatives are organized into various tiers with PFCS at the bottom and FISHCOPFED at the top. Large number of fishermen cooperatives have been formed in India as revealed by the FISHCOPFED database. Scattered studies have been made by different authors about the condition and mode of functioning of fishermen cooperatives in this country. The important findings of the recent studies related to status of fishermen cooperatives in India have been discussed in this paper. It was found that there were regional imbalances in the mode of functioning of fishermen cooperatives, some were well managed under active monitoring and support of government but many cooperatives were facing different constraints for their survival. For the increase in fish production as well as socio-economic development of fishermen, sustainable management of fishermen cooperatives are very important. To achieve this, a comprehensive study throughout the country, focussing on various aspects of fishermen cooperatives has been proposed. The need for suitable policy implications for sustainable management of fishermen cooperatives in congruence with the modern technological development in the field of fisheries, environmental pollution and climate change have been mentioned.
N Daniel, K Sathyaraj, E Suresh, A Angela Mercy, K Karal Marx, A Uma, G Sathishkumar
International Journal of Fisheries and Aquatic Studies, Volume 9, pp 241-244; https://doi.org/10.22271/fish.2021.v9.i2d.2457

Abstract:
The present study evaluated the anaesthetic activity of tobacco (Nicotiana tabacum) leaf dust in fish. GIFT tilapia was used as an experimental animal with the total study duration of 24 hours. The fish size of 4.58±0.68 g was randomly distributed into the 20-liter plastic tub at a stocking density of 10 fishes per container. Anaesthetics were added into experimental tubs of seven different groups viz. one control (0 mg/L), followed by six treatment groups (25, 50, 75, 100, 125 and 150 mg/L) in triplicates. Results showed that an increase in the concentration of tobacco leaf dust shortened the induction time, but delayed the recovery time in fish (p
Krishna Pv, M Sai Mounika, Bvl Aradhya Sarma, B Padmaja
International Journal of Fisheries and Aquatic Studies, Volume 9, pp 180-184; https://doi.org/10.22271/fish.2021.v9.i2c.2448

Abstract:
The new threats to human health from heavy metals are associated with exposure to some selected metals. The study identifies and assessment of the accumulation and levels of five heavy metals (Cd, Cr, Ni, Pb and Zn) in food fish Channa striata of Krishna river, collected from three stations during four seasons of the year i.e June,2019- May2020. The range of metal concentrations recorded were: Cd 1.12-3.35, Cr 1.41-2.89, Ni 1.51 -3.72,Pb 3.29- 7.69 and Zn 13.8 – 29.1 in case of muscle and in case of liver goes to Cd 2.21 – 4.43, Cr 1.74- 3.68, Ni 1.96-3.71, Pb 3.52- 8.09 and Zn 14.5 – 32.6. The spatial variation in concentrations and comparison among seasons indicated that there are significant differences in the concentrations of metals in the muscle and liver for all seasons. The mean metal concentrations varied temporally; metal masses were relatively constant with fluctuations in metal concentrations related to fluctuations in metal body burdens. The metal contamination had significantly higher in both the tissues of Zn and Pb concentrations. According to the guideline values, the concentrations of metals studied do not pose any threat to the health of fish consumers.
Ukagwu Ji, Anyanwu Dc, Ohaturonye S, Orgi MC, Offor Ji
International Journal of Fisheries and Aquatic Studies, Volume 9, pp 119-130; https://doi.org/10.22271/fish.2021.v9.i2b.2460

Abstract:
The length-weight relationship and condition factor of Macrobrachium felicinum and Macrobrachium vollenhovenii were studied for January 2013 to December 2014, in Akor River, in Ibere region, Abia State, Nigeria. The length-weight relationship was estimated using linear regression at α= 0.05.The condition factor of the prawns were estimated from Fulton’s condition factor. Result of the length- weight distribution of the two species showed normal distribution at the three stations. The class size for the length of the two species ranged from 6.6-7-6cm and 12.1-13.1cm while the weight ranged from 70-79g and 130-139g. Regression analysis revealed that the length and weight of both species Macrobrachium species females and males correlated positively, it ranged from (R= 0.8044* - 0.9856*). Regression coefficient (b) was recorded as 10.74, 4.98 and 4.37 for Macrobrachium felicinum males, females and combined sex respectively, while (b) was recorded as 7.022, 7.10 and 7.1 for Macrobrachium vollenhovenii males, females and combined sex respectively. The overall average condition factor for all the species was 4.18. Study therefore concludes that Akor River remains a healthy medium for the culture of prawn species and recommend that aqua culturists should take advantage of the blossom aquatic environment to improve prawn production.
Amakoé Adjanke, Kokou Tona, Messanvi Gbeassor
International Journal of Fisheries and Aquatic Studies, Volume 9, pp 350-353; https://doi.org/10.22271/fish.2021.v9.i3e.2509

Abstract:
A test was conducted to determine the effect of feeding frequency on feed intake, growth and survival of tilapia Oreochromis niloticus, reared in hapas implanted in pond. Twelve hapas of 1m3 were installed in a 150 m² pond in three lines representing the three repetitions of the four treatments which are the feeding frequencies. Oreochromis niloticus tilapia fingerlings with an average initial weight 4.12 ± 0.33 g, were stocked at a density of 50 fish per hapa. They are fed with a standard food (Raanan, 32% crud protein) at different frequencies (F): 1; 2; 3 or 4 meals per day and at the rates of 8 to 3% of the biomass from the first to the sixth month of the trial. After 6 months of experiment the survival rate varied from 92 ± 0.0% (F4) to 78.7 ± 13.3% (F1). Growth was effective in all lots with final mean weights varying from 181.6 ± 3.3 g (F4) to 124.3 ± 1.8 g (F1). It took 2.6 ± 0.1 (F1) to 2.1 ± 0.0 (F3) kilogram of feed to produce 1 kg of fish; the latter (F1; F3) having respectively gained daily 0.71 to 1.05 g per day. Economic analyzes by comparing the products obtained with the charges involved show a profit margin of -4,992.2 F CFA (F1); 490.0 F CFA (F2); 3,718.0 F CFA (F3); -268.9 F CFA (F4). Three feedings per day (F3) appear to be the best frequency for this feeding, however two feedings can allow the farmer to go about other activities.
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