Aquaculture International

Journal Information
ISSN / EISSN : 0967-6120 / 1573-143X
Published by: Springer Nature (10.1007)
Total articles ≅ 2,532
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Latest articles in this journal

Hui Teng Tan, , Yam Sim Khaw, Muhammad Farhan Nazarudin, Nur Amirah Izyan Noor Mazli, Siti Aqlima Ahmad, Noor Azmi Shaharuddin, Tatsuki Toda
Published: 3 October 2022
Aquaculture International pp 1-31;

The publisher has not yet granted permission to display this abstract.
, Mamdouh Y. Elgendy, Medhat R. Elfadadny, Sameh Samir Ali, Ahmed H. Sherif, Said Kamal Abolghait
Published: 30 September 2022
Aquaculture International pp 1-18;

Egypt is the world’s ninth-largest fish producer with a total production of 1.5 billion tons per year, and farmed fishes comprise almost 79.6% of the total production. Massive mortalities in market-sized farmed fish (freshwater and marine species) were documented all over fish farms in Egypt leading to serious economic losses. The poor biosecurity practices and awareness among smallholder fish farmers accompanied with a long period of temperature fluctuation may predispose farmed fish to be simultaneously coinfected with multiple pathogens. Moribund fishes usually exhibited various septicemic clinical signs and post-mortem lesions indicating that one or more septicemic bacterial pathogens were involved in these outbreak reports. Therefore, rapid and accurate identification of pathogens in the asymptomatic fish population is important for preventing the occurrence of infectious diseases and protecting consumers from seafood-borne illnesses. Molecular techniques provide sensitive, quick, and accurate data for identifying specific pathogens without the need for time-consuming traditional techniques. In addition, the development of cost-effective molecular techniques facilitates their wide implementation in routine clinical diagnostic approaches. Molecular diagnostic methods are useful for simultaneously identifying multiple bacterial pathogens that were challenging to recognize by commercial biochemical techniques. Genetic testing procedures could determine the genetic diversity between closely related strains at the subspecies level. Consequently, these techniques are required for the development of detecting methods for specific strains and for epidemiological investigations in bacterial diseases. This review documented a variety of molecular techniques, including amplification of nucleic acids, polymerase chain reaction (PCR), nested PCR, real-time PCR, multiplex PCR, loop-mediated isothermal amplification (LAMP), DNA microarrays, and nucleotide sequencing assays, that are commonly used to identify fish pathogens.
, Juha-Pekka Turkka, Jukka Kekäläinen
Published: 30 September 2022
Aquaculture International pp 1-15;

Appropriate fertilization practices play a crucial role in the maintenance of genetic diversity within captive fish broodstocks. We assessed the influence of in vitro storage of gametes (0-, 7- and 14-days post-stripping) at 1 °C on ovarian fluid pH, sperm motility, and embryo viability in the critically endangered Finnish landlocked salmon (Salmo salar m. sebago) population. A repeated full-factorial design used in both sperm-ovarian fluid activation analyses and fertilizations allowed us to separate the effects of female, male and their interaction on gamete quality and embryo survival across storage times. The ovarian fluid pH decreased most significantly during the first week of storage and showed considerable variation among females. The decrease of sperm motility varied across males, females and male–female (sperm-ovarian fluid) combinations. The mean proportion of viable embryos was initially 96.4%, but dropped to 45.5% after 7 days, and to 13.1% after 14 days of gamete storage. Embryo viability responses to gamete storage time predominantly increased among- and within-female variation but also showed major differences between female × male combinations (non-additive genetic effects). Interestingly, embryo viability showed virtually complete re-ranking (change of order) among full-sib families between the first two fertilization times (rs = − 0.03) but consistency between the first and last times (rs = 0.59). Overall, our results indicate that even when the primary aim is to maximize the genetic diversity of endangered fish populations, it may be advisable to prioritize minimal egg storage time rather than maximizing the number of parental combinations in fertilizations.
Seyed Samad Hosseini, , Kourosh Amini, Masoud Ghorbanpour, Takavar Mohammadian
Published: 30 September 2022
Aquaculture International pp 1-22;

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, Rona Cabanayan-Soy, Jerwin Baure, Marie Antonette Juinio-Meñez
Published: 28 September 2022
Aquaculture International pp 1-14;

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Bianca De Oliveira Ramiro, Alda Lúcia De Lima Amâncio, Júlio César Da Silva Cacho, , Márcia Dantas dos Santos, , Luciana Diniz Rola,
Published: 28 September 2022
Aquaculture International pp 1-12;

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, Elsayed A. Eldessouki, Nader M. Sabry, Nadia G. Ali
Published: 24 September 2022
Aquaculture International pp 1-16;

Fish transportation is a regular farming and experimental practice that mainly results in stress conditions that may extend to induce a high mortality rate. In the present experimental simulation, Oreochromis niloticus were transported for 2 h and maintained for another 6 h in transportation containers to assess the effect of tranquilization with tricaine methanesulfonate (MS-222) and/or the addition of iodine on mortality rate and restoring the normal physiological functions. Experimental fish were divided into four groups: group 1 (control) was transported in farm water without MS-222 or iodine, group (2) was transported in farm water supplemented with 40 mg/L of MS-222, fish in group (3) were transported in farm water supplemented with 40 mg/L of MS-222 + 10 ppm iodine, and fish in group (4) were transported in farm water containing 10 ppm iodine. Blood samples were collected for the determination of serum cortisol and glucose, while skin mucus was collected for assaying lysozyme, peroxidase and antibacterial activity; cumulative mortality rate; and food reflexes which were assessed at 0 h, 1 h, 6 h, 48 h, 7 days and 14 days post 2 h transportation. The results indicated that fish tranquilization with MS-222 and/or treatment with iodine mitigated the stress condition associated with transportation and accelerate restoration of the normal physiological and immunological status. So, it was recommended to use the MS-222 as a tranquillizer together with iodine as an antiseptic during transportation of O. niloticus.
, Gaoshang Han, Lu Qiang, Liyuan Zhang, Ruiming Tan, Yongxiang Yu
Published: 23 September 2022
Aquaculture International pp 1-19;

The publisher has not yet granted permission to display this abstract.
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