Open AccessVariation in the morphophysiological indices of the lion paw scallop Nodipecten subnodosus (Sowerby, 1835) in Bahía de los Ángeles, B.C., Gulf of California.
Author(s) -
Josué Alonso Yee-Duarte,
Bertha Patricia Ceballos Vázquez,
Marcial ArellanoMartínez
Publication year - 2009
Publication title -
cicimar oceánides
Language(s) - English
Resource type - Journals
eISSN - 2448-9123
pISSN - 1870-0713
DOI - 10.37543/oceanides.v24i2.58
Subject(s) - biology , gametogenesis , gonadosomatic index , gonad , zoology , fishery , anatomy , fecundity , demography , embryogenesis , embryo , population , sociology
From January to December, 2006 the variation of the gonadosomatic (IGS), muscle (IM), digestive gland (IGD) and mantle indices (IMA) of Nodipecten subnodosus in Bahía de Los Angeles, B.C., Mexico were analyzed. A total of 334 organisms were examined, all within an interval of 48 to 172 mm of shell height. The IGS showed a seasonal pattern indicating that the gonadic ripeness appeared from April to June. Both, the IGD and the IMA had a significant correlation with the IGS (P 0.05). The analysis of the variation of the morphophysiological indices indicates that it is possible that in the Bahía de Los Angeles, B.C., N. subnodosus presents a cycle of storage and transference of energy from somatic tissues to the gonad to support gametogenesis. N. subnodosus reproduces in a defined rank of temperature, it begins its gametogenesis between 17 °C and 18°C of temperature of the water and reaches its maximum ripeness between 23.5 °C and 26.8 °C.