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当前位置: 首页 > 文章 > 回捕牙鲆生长和摄食状况调查研究 天津农业科学 2019 (5) 33-38
Position: Home > Articles > Growth and Feeding Status of the Captured Population of Paralichthys olivaceus Tianjin Agricultural Sciences 2019 (5) 33-38

回捕牙鲆生长和摄食状况调查研究

作  者：
宋立民;于清海;袁立来;司飞;任玉芹;任建功;张红涛;李楠
单  位：
中国水产科学研究院北戴河中心实验站;中国水产科学研究院资源与环境研究中心;天津市水产研究所
关键词：
牙鲆;增殖放流;生长指标;胃含物;DNA条形码
摘  要：
以秦皇岛海域回捕牙鲆为材料,应用分子标记将其分成放流和非放流2组,采用形态学测量、鉴定方法并结合DNA条形码技术对比分析了2组牙鲆的生长和摄食状况。结果显示:(1)放流牙鲆的体长和体质量略大于非放流牙鲆,肥满度、脂肪含量和肠体比值略小,经过独立样本T检验,各参数值的差异并不显著(P>0.05);(2) 2组牙鲆的空胃率较高,摄食强度差异不显著(P>0.05);(3)胃含物组成和种类基本一致,包括鱼类、软体动物、多毛类和虾类;(4)针对4种不可辨认的胃含物提取组织DNA,选用线粒体DNA COI基因片段作为分子标记,在Gen Bank中进行比对分析,并利用MEGA 4.0构建NJ系统进化树,结果鉴定出一种鰕虎鱼(Gobiidae sp.)、一种石首鱼(Sciaenidae sp.)、赤鼻绫鯷(Thryssa kammalensis)和火枪乌贼(Loliolus beka)。进而说明放流牙鲆经过禁渔期的适应,已经恢复了在增殖海域生存的能力。
译  名：
Growth and Feeding Status of the Captured Population of Paralichthys olivaceus
作  者：
SONG Limin;YU Qinghai;YUAN Lilai;SI Fei;REN Yuqin;REN Jiangong;ZHANG Hongtao;LI Nan;Tianjin Fisheries Research Institute;Beidaihe Central Experiment Station, Chinese Academy of Fishery Sciences;Fisheries Resource and Environment Research Center, Chinese Academy of Fishery Sciences;
单  位：
SONG Limin%YU Qinghai%YUAN Lilai%SI Fei%REN Yuqin%REN Jiangong%ZHANG Hongtao%LI Nan%Tianjin Fisheries Research Institute%Beidaihe Central Experiment Station, Chinese Academy of Fishery Sciences%Fisheries Resource and Environment Research Center, Chinese Academy of Fishery Sciences
关键词：
Paralichthys olivaceus;;artificial stock enhancement;;growth indexes;;stomach contents analysis;;DNA barcoding
摘  要：
The captured population of Japanese flounder in the Qinhuangdao coastal releasing area were divided into two groups by molecular markers, which were the released group and non-released group. Differences of growth indexes and dietary composition between the two groups were compared and analyzed by morphological method and molecular technology. The results showed that:(1)the values of body length and weight in the released group were higher than the non-released group, while the values of condition factor and whole body crude lipid content and viserosomatic index were lower, and all of those did not show any significant differences between the released P. olivaceus and non-released P. olivaceus(P>0.05);(2) high gastric vacuous rate were showed in released and non-released groups, while values of feeding intensity were not significantly different from each other;(3) stomach contents of the released P. olivaceus and non-released P. olivaceus had little differences, including pisces, mollusk, polychaeta and decapoda;(4) DNA were extracted from 4 sampled fish stomach contents which could not be identified by morphological observation, Mitochondrial DNA COI was amplified as molecular marker, comparative analysis were conducted in Gen Bank, and NJ phylogenetic trees were established by MEGA 4.0, results of a Gobiidae sp., a Sciaenidae sp., Thryssa kammalensis and Loliolus beka were identified. Furthermore the released P. olivaceus had pretty much adapted to the wild after the closed season.

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