AQUA 2024

August 26 - 30, 2024

Copenhagen, Denmark

BIOMETRIC, BIOCHEMICAL AND PHYSIOLOGICAL CHARACTERIZATION OF THE PACIFIC PYGMY OCTOPUS Paroctopus digueti UNDER CONTROLLED CONDITIONS

Bertha P. Ceballos-Vázquez*, Diana P. Carreño-León, Samantha Payén-Román, Armando Monge-Quevedo, María G. Martínez-Morales

 

Instituto Politécnico Nacional, Centro Interdisciplinario de Ciencias Marinas. Av. Instituto Politécnico Nacional s/n Col. Playa Palo de Santa Rita. C.P. 23096, La Paz, Baja California Sur, México. bceballo@ipn.mx

 



Paroctopus digueti is the smallest octopus (15 cm) that inhabits benthic-muddy environments within the Gulf of California. Its life cycle is short (6 months), with direct development, produces up to 300 6-8 mm long eggs sheltered by the female until hatching. These characteristics make P. digueti an ideal candidate for culture as a research model.

The present study establishes baseline values of metabolism, biometric and biochemical parameters of P. digueti, which allow determining the optimal conditions for development and growth in a short time.

Standard metabolic rate was determined through a closed respirometry system under normal conditions of temperature (26°C) and salinity (38 ups) in three size ranges (15-24 g, 25-33 g, > 34 g). Biometric measurements were taken at the beginning and end of the trial, tissue samples were taken for biochemical analysis (-80°C). Growth was evaluated for a period of 38 days.