水产学报2025，Vol.49Issue(11)：26-35,10.DOI:10.11964/jfc.20240514520
红九棘鲈胚胎发育及仔、稚鱼形态观察
Embryonic development and morphological characteristics of larvae and juveniles of the tomato grouper(Cephalopholis sonnerati)
摘要
Abstract
The tomato grouper(Cephalopholis sonnerati)is a valuable economic fish species in the South China Sea and is highly sought after by consumers.Investigating the morphometrics and physiology of early life stages(embryos,larvae,juven-iles)is essential for understanding fish early life history and advancing aquaculture success.This study conducted detailed observation and research on the embryonic development of fertilized eggs and the morphological characteristics of larvae and juveniles of C.sonnerati through microscopic observation.The fertilized eggs of C.sonnerati are floating,transparent and spherical,undergoing development through six major stages that are further subdivided into 24 distinct phases.3 days post hatching(dph)larvae switch to exogenous nutrition with the disappearance of the yolk sac.Meanwhile,their tissues and organs begin to differentiate,and the second dorsal fin spine and the first pelvic fin spine appear.These are signs for late larvae.When the late larvae develop to 24 dph,the absolute lengths of the second dorsal fin spine and the pelvic fin spine have reached the maximum value of the larval and juvenile stage.At the same time,their fin rays are formed,and the larvae metamorphose into juveniles.In the juvenile stage,the growth rate accelerates,and the differentiation of tissue and organ morphology becomes more complete.This study is the first to report the morphological characteristics and developmental patterns of the embryos,larvae and juveniles of C.sonnerati,providing a theoretical basis for the large-scale breeding of C.sonnerati.关键词
红九棘鲈/胚胎发育/仔稚鱼/形态特征/生长特性Key words
Cephalopholis sonnerati/embryonic development/larvae and juveniles/morphological characteristics/growth per-formance分类
生物科学引用本文复制引用
宋煜,陈松林,李雪,卢昇,陈张帆,周波,陈有铭,刘洋,梁友,王崇伟..红九棘鲈胚胎发育及仔、稚鱼形态观察[J].水产学报,2025,49(11):26-35,10.基金项目
国家生物育种重大专项(2023ZD0405502) （2023ZD0405502）
山东省重点研发计划(2023ZLYS02) （2023ZLYS02）
海南院士创新平台项目(YSPTZX202402) （YSPTZX202402）
中国水产科学研究院创新团队项目(2023-TD-23) （2023-TD-23）
山东省泰山学者攀登计划 National Major Project on Biological Breeding(2023ZD0405502) （2023ZD0405502）
Shandong Provincial Key Research and Development Program(2023ZLYS02) （2023ZLYS02）
the Innovation Platform for Academicians of Hainan Province(YSPTZX202402) （YSPTZX202402）
Innovation Team Project of the Chinese Academy of Fishery Sciences(CAFS)(2023-TD-23) （CAFS）
Shandong Taishan Scholars Pin-nacle Program Project （）
