文章基本信息

标题：Biometrical relationships in developing eggs and neonates of Octopus vulgaris in relation to parental diet
本地全文：下载
作者：Lorenzo Márquez ; Daniel Quintana ; Antonio Lorenzo 等
期刊名称：Helgoland Marine Research
印刷版ISSN：1438-3888
出版年度：2013
卷号：67
期号：3
页码：461-470
DOI：10.1007/s10152-012-0335-y
出版社：BioMed Central
摘要：Captive Octopus vulgaris adults were fed three mono-diets based on pilchard, crab and squid and allowed to grow until reproduction under controlled temperature. Spawns from each dietary treatment were isolated, and the embryonic development, egg length, width and wet weight, in addition to neonate dry weight, dorsal mantle length and ventral mantle length were monitored. Pilchard-diet spawns developed faster in terms of thermal time. Initial egg wet weight was higher for squid and crab diets. Irrespective of the parental diet, eggs passed through a swelling process so that egg width and wet weight increased in a nonlinear way, whereas egg length was left nearly unaffected. Egg length and initial wet weight showed a high correlation with neonate dry weight. Egg length, even at advanced incubation, can be used as a good proxy for neonate dry weight, this fact having potential implications for the ecological and aquaculture research on O. vulgaris.
关键词：Octopus vulgaris;Egg biometry;Paralarvae biometry;Parental diet;Embryonic development;Thermal time scales