渔业科学进展2018，Vol.39Issue(2)：164-170,7.DOI:10.19663/j.issn2095-9869.20170103002
西非沿岸乌贼角质颚形态及生长特征
The Morphology and Growth Characteristics of Beaks of European Common Cuttlefish (Sepia officinalis) in the Coast of West Africa
摘要
Abstract
Common cuttlefish (Sepia officinalis) is one of the most important economic and ecological species in the West African coastal waters.Studying the morphology and growth characteristics of its beak is beneficial for common cuttlefish's development and utilization.This study analyzed beak morphological parameters and their ratios based on the samples collected by the Chinese trawlers in 2015 in coastal waters of West African Mauritania,and studied the beak growth variations in different mantle length groups and different gonadal maturity stages.Morphological parameters of beaks were used to estimate the size of the cuttlefish.The results showed the length ratio indices of the lower beak were not stable,and that the beak morphological parameters of female were significantly higher than the male after eliminating the effect of the sample size differences by dividing the mantle length (P＜0.01).The ANOVA and the Least Significant Difference (LSD) analysis showed that morphological parameters of the common cuttlefish beaks significantly increased with the growth of mantle length (P＜0.01) and gonad maturity stage Ⅱ～Ⅳ (P＜0.01).However,beaks in the gonad maturity stage Ⅴ were significantly smaller than those in the previous periods (Ⅱ～Ⅳ,P＜0.05).Principal component analysis showed that upper hood length (UHL) and lower crest length (LCL) had the highest loading coefficient in the first principal component,and that lower rostrum length (LRL) and lower rostrum width (LRW) had the highest loading coefficient in the second principal component,which can be used for the mantle length estimation.This study provides basic biology information for the classification and ecological research about common cuttlefish in the coast of West Africa.关键词
乌贼/角质颚/形态参数/生长特征Key words
Common cuttlefish (Sepia officinalis)/Beak/Morphological parameter/Growth characteristics分类
农业科技引用本文复制引用
瞿俊跃,李建华,陈芃,陈新军,靳楠..西非沿岸乌贼角质颚形态及生长特征[J].渔业科学进展,2018,39(2):164-170,7.基金项目
国家自然科学基金(NSFC41476129 （）
NSFC41276156)和上海市科技创新行动计划(14DZ1205000)共同资助[This work was supported by the National Science Foundation of China (NSFC41476129,NSFC41276156),and the Innovation Program of Shanghai Municipal Science Commission (14DZ1205000)]. （14DZ1205000）
