Reproductive traits of Octopus maya (Cephalopoda: Octopoda) with implications for fisheries management
- 6 April 2016
- journal article
- research article
- Published by Taylor & Francis Ltd in Molluscan Research
- Vol. 36 (1), 29-44
- https://doi.org/10.1080/13235818.2015.1072912
Abstract
Octopus maya is the main species caught in Mexico. From September 2007 to June 2008, its sex ratio, reproductive season, frequency of non-vitellogenic and vitellogenic oocytes, reproductive indices, and size and weight at maturity, were evaluated. The monthly sex ratio was significantly different from 1:1. The major reproductive season occurs during February to June (dry season) in Yucatan. May−June is the common reproductive season to both Yucatán and Campeche populations. Higher frequencies of vitellogenic oocytes (> 50%) were found from January-March and in May. From five reproductive indices, only the macroscopic and microscopic maturity indices were the best descriptors of the reproductive season in females, whilst only the reproductive complex index was the best descriptor in males. The weight at sexual maturity (BW50%) was 335 g for females and 242 g for males. The size at sexual maturity (DML50%) was 12.58 cm for females and 7.42 cm for males. It is recommend revising the minimum catch size by following these results. The reproductive traits here evaluated could contribute to the recently created Plan for Management of Octopus Fisheries, in particular action line no. 1.4, which refers to protection of females during breeding, and to their protection throughout the entire reproductive season.Keywords
This publication has 46 references indexed in Scilit:
- Emergence, Development, and Maturity of the Gonad of Two Species of Chitons “Sea Cockroach” (Mollusca: Polyplacophora) through the Early Life StagesPLOS ONE, 2013
- Cytological ontogeny of the digestive gland in post-hatching Octopus maya, and cytological background of digestion in juvenilesAquatic Biology, 2011
- Heterologous microsatellites reveal moderate genetic structure in the Octopus maya populationFisheries Research, 2010
- Reproductive cycle and sexual maturation of the musky octopus Eledone moschata (Cephalopoda: Octopodidae) in the northern and central Adriatic SeaScientia Marina, 2009
- Gametogenic cycle and variations in oocyte size of Tapes philippinarum from the Lagoon of VeniceAquaculture, 2004
- Overview and characterization of the hydrology and primary producer communities of selected coastal lagoons of Yucatán, MéxicoAquatic Ecosystem Health & Management, 1998
- Reproduction of the temperate aspidochiroteStichopus mollis(Echinodermata: Holothuroidea) in New ZealandOphelia, 1992
- Reproductive System Structure, Development and Function in Cephalopods with a New General Scale for Maturity StagesJournal of Northwest Atlantic Fishery Science, 1992
- Studies on the Maturity Condition of the Common Squid-INIPPON SUISAN GAKKAISHI, 1970
- The anatomy and histology of the reproductive systems of Octopus bimaculoidesJournal of Morphology, 1959