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Título del libro: Octopus Biology And Ecology
Título del capítulo: Octopus maya, the Mayan octopus

Autores UNAM:
CARLOS ROSAS VAZQUEZ; JORGE ALBERTO LOPEZ ROCHA; CLAUDIA PATRICIA CAAMAL MONSREAL; PEDRO PABLO GALLARDO ESPINOSA; CRISTINA PASCUAL JIMENEZ;
Autores externos:

Idioma:

Año de publicación:
2024
Palabras clave:

Feeding ecology; Fishery biology; Growth; Octopus maya; Thermo-biology


Resumen:

Octopus maya Voss & Solís-Ramírez, 1966 is an ocellate octopus endemic to the shallow waters of Campeche Bank off Yucatan in Mexico and is fished in large numbers off Yucatan and Campeche states, where it is abundant. It matures at a wide range of sizes by December, and size at maturity (BW50%) is 1024g body weight (BW) for females and 484g for males. Maximum sizes in the wild are 200mm ML and 2500g BW. Females each lay around 700 eggs, which reach 16?17mm in length before hatching after 45?55days. Hatchlings are benthic and behave like miniature adults, although their ecology in the wild is unknown. The life span is around 1 year. O. maya feeds on crustaceans (mainly crabs), gastropods and bivalves. It supports one of the largest octopus fisheries in the world and is the main fishery resource in Yucatan and Campeche. This fishery employs lines baited with various crab species and since spawning females (which stop feeding) are not taken, it is sustainable (for O. maya but not the crabs). There has been intensive research on culturing O. maya because of its feasibility for husbandry, and it is the species closest to achieving commercial cultivation. Experiments with embryos, juveniles and adults indicate that, surprisingly, this tropical endemic species is relatively sensitive to high temperatures and dies at temperatures exceeding 27°C. In trying to understand more about O. maya and its interactions with its environment, much has been learned about this species and the effects of temperature on its health and reproductive performance, which may also be of help in reaching a clearer understanding of the biology and ecology of octopuses in general and how they may be affected by global warming. © 2024 Elsevier Inc. All rights reserved.


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