棘头梅童鱼形态特征及其相关生物学参数分析  

Analysis of morphological characteristics and related biological parameters of Collichthys lucidus

作　　者：吉群 宋炜[1,2] 许文军[3] 谢正丽 徐冬冬[3] 王鲁民[1] JI Qun;SONG Wei;XU Wenjun;XIE Zhengli;XU Dongdong;WANG Lumin(Key Laboratory of Oceanic and Polar Fisheries,Ministry of Agriculture and Rural Affairs,East China Sea Fisheries Research Institute,Chinese Academy of Fishery Sciences,Shanghai 200090,China;College of Fisheries and Life Sciences,Shanghai Ocean University,Shanghai 201306,China;Marine Fisheries Research Institute of Zhejiang,Zhoushan 316021,China;Key Laboratory of Fishery Equipment and Engineering Technology,Ministry of Agriculture and Rural Affairs,Fishery Machinery and Instrument Research Institute,Chinese Academy of Fishery Sciences,Shanghai 200092,China)

机构地区：[1]中国水产科学研究院东海水产研究所,农业农村部远洋与极地渔业创新重点实验室,上海200090 [2]上海海洋大学水产与生命学院,上海201306 [3]浙江省海洋水产研究所,浙江舟山316021 [4]中国水产科学研究院渔业机械仪器研究所,农业农村部渔业装备与工程技术重点实验室,上海200092

出　　处：《水产科技情报》2023年第3期146-151,共6页Fisheries Science & Technology Information

基　　金：浙江省重点研发项目(2020C02015);科技部国家重点研发计划——蓝色粮仓科技创新专项(2020YFD0900805);中央级公益性科研院所基本科研业务费专项资金(东2019M02);现代农业产业技术体系专项(CARS-47-G25);中国水产科学研究院科技创新团队项目(2020TD14)。

摘　　要：对捕捞自闽东海域的209尾体质量7.70~66.09 g、体长79.88~150.70 mm的棘头梅童鱼的外部形态、可数性状和可量性状进行了研究,分析了形态特征参数间的相关关系。结果表明:(1)棘头梅童鱼鱼体呈长椭圆形,侧扁,背部呈浅弧形;头大而圆钝,额部隆起;口大,口裂倾斜度大;吻短钝,眼小;头部及体部被薄圆鳞,鳞小;侧线发达,略呈弧形;背侧面灰黄色,腹侧面金黄色,鳃腔上部深黑色;唇橙红色,口腔浅色。背鳍鳍棘部边缘及尾鳍末端为灰黑色,各鳍为淡黄色。(2)全长、肛前长、尾柄长、头长、眼径、头高、体高、尾柄高、眼后头长和体质量与体长存在极显著相关关系(P<0.01),体宽与体长存在显著相关关系(P<0.05)。(3)以体长为自变量、各参数为因变量进行拟合处理,结果显示,全长、肛前长、尾柄长、头长、眼径、体高、体宽和眼后头长与体长呈指数相关,而尾柄高、头高与体长呈线性相关,其中体质量(W)与体长(S_(l))的拟合方程为:W=4.5065×10^(-6)S_(l)^(3.2907)(R^(2)=0.9306,P<0.01),b值为3.2907,为异速生长。(4)与体长显著相关的体质量、肛前长、尾柄长、头长、眼径、头高、体高、尾柄高、眼后头长和体宽等10个参数间存在偏相关关系,其中肛前长与尾柄长、头长、眼后头长和体宽为极显著相关(P<0.01),尾柄长和头长与尾柄高存在显著相关关系(P<0.05),与其他参数间存在极显著相关关系(P<0.01)。The morphological characters of 209 Collichthys lucidus with the body weights of 7.70-66.09 g and a body length of 79.88-150.70 mm fished from the sea area of eastern Fujian were studied,and the correlation between morphological parameters were analyzed.The results showed that:(1)The body was long and oval,the side was flat,the back was shallowly curved;the head was large and blunt,the forehead was uplifted;the mouth was large and the mouth cleft was greatly inclined;the snout was short and blunt,the eyes were small;the head and body were covered with thin round scales,the scales were small;the lateral line was developed,slightly curved;the dorsal side was grayish yellow,the ventral side was golden yellow,and the upper part of the gill cavity was dark black;the lips was orange-red and the mouth was pale.The edges of the spines of the dorsal fin and the end of the caudal fin were gray-black,and the fins were pale yellow.(2)Total length,pre-anal length,caudal length,head length,eye diameter,head height,body height,caudal height,postorbital length of the head and body weight were significantly correlated with body length(P<0.01),and body width was correlated with body length(P<0.05).(3)The total length,pre-anal length,caudal length,head length,eye diameter,body height,body width,and postorbital length of the head were exponentially correlated with body length,while caudal height and head height were linearly correlated with body length.The fitting equation of body length(S_(I))and body weight(W)was W=4.5065×10^(-6)S_(l)^(3.2907)(R^(2)=0.9306,P<0.01),in which 3.2907 was the growth factor,and it represents allometric growth when its value was higher than 3.(4)All parameters including pre-anal length,caudal length,head length,eye diameter,head height,body height,caudal height,postorbital length of the head,body weight and body width were significantly correlated each other.The partial correlation between pre-anal length and other parameters was worst,and only significant correlation with caudal length,postorbital leng

关 键 词：棘头梅童鱼 外部形态 可量性状 可数性状 相关性 

分 类 号：S917.4[农业科学—水产科学]