Open AccessOptimización del tratamiento térmico para la inducción al desove de Argopecten purpuratus (Mollusca: Bivalvia)
Author(s) -
Jhon Dionicio-Acedo,
Alison Cabrera-Simon,
Maryandrea Rosado-Salazar,
Arturo Aguirre-Velarde
Publication year - 2021
Publication title -
revista de biología marina y oceanografía
Language(s) - English
Resource type - Journals
eISSN - 0718-1957
pISSN - 0717-3326
DOI - 10.22370/rbmo.2021.56.2.3058
Subject(s) - bivalvia , mollusca , biology , scallop , zoology , fishery , ecology
Based on methodologies currently used in commercial hatcheries, four thermic treatments were compared to induce the gametes expulsion of Argopecten purpuratus. The treatments evaluated included: 1) gradual increase in temperature, 2) gradual decrease, 3) 5 °C thermal-shock, 4) 10 °C thermal-shock and 5) control at constant temperature 16 °C. After induction, the number of fertilized oocytes in each treatment was estimated. The results show that a gradual increase in temperature between 16 and 26 °C causes a significantly higher proportion of fertilized oocytes compared to other treatments.