Age, growth, reproductive biology, color pattern, and ontogenetic divergence of two closely related rock?shes (Sebastes koreanus and S. nudus) off the coasts of the Shandong Peninsula, China
Age, growth, reproductive biology, color pattern, and ontogenetic divergence of two closely related rock?shes (Sebastes koreanus and S. nudus) off the coasts of the Shandong Peninsula, China作者机构：College of Fisheries Ocean University of China
出 版 物：《Journal of Oceanology and Limnology》 (海洋湖沼学报（英文）)
年 卷 期：2020年第38卷第1期
页 面：204-225页
核心收录：
学科分类：0710[理学-生物学] 0908[农学-水产] 0707[理学-海洋科学] 08[工学] 0815[工学-水利工程] 0812[工学-计算机科学与技术（可授工学、理学学位）]
基 金：Supported by the National Natural Science Foundation of China(No.41876177) the Fundamental Research Funds for the Central Universities(No.201822027)
主 题：Sebastes growth color pattern speciation
摘 要：The live-bearing genus Sebastes is renowned for its outstanding species richness and color diversity,and its speciation has been a point of *** study investigated the age,growth,reproductive biology,color pattern and ontogenetic divergence of a pair of closely related rockfishes from the coasts of the Shandong Peninsula,namely,Sebastes koreanus(n=879)and ***(n=257).Marginal increment analysis of sectioned otoliths showed that annulus formation occurred once a year between June and July in both *** sex-pooled growth curves of *** and 3 populations of *** differed significantly from each *** apparent latitudinal cline in growth parameters was found in *** both species,the peak parturition periods were from April to May,and the peak copulation periods were from November to *** has a highly variable and conspicuous color pattern while *** has a stable and dull color *** difference,together with the overlapping distribution and the close relationship,make *** and *** an ideal model to investigate the color-driven speciation of the *** confirmed that *** changes its body color with age and season and fully expresses the carotenoid-based nuptial coloration when the fish reaches first ***,our comparisons of morphological traits that are likely related to survival and quality of these fishes suggested that *** may suffer higher predation risk and foraging difficulty beginning at age *** light of the ontogenetic development of the color pattern in ***,we suggested that the full expression of nuptial coloration most likely triggers the strong selective pressure to enhance swimming performance,anti-predator defense and foraging capacity of *** through predator-prey *** understanding all these details,we further inferred a hypothesis that both color pattem and bathymetric segregation play key roles in facilitating the speciation of demersal r
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