中国农业科学院农业信息研究所 中国农学会
Agricultural Information Institute of CAAS China Association of Agricultural Science Societies
En
Ch
中国农业科学院农业信息研究所 中国农学会 主办

AI检索

订阅

返回顶部
当前位置: 首页 > 文章 > 天津海域春夏季鱼卵、仔稚鱼的种类组成与数量分布 大连海洋大学学报 2012,27 (6) 83-87
Position: Home > Articles > Species composition and abundance of fish eggs,larvae,and juveniles in Tianjin sea area during spring and summer Journal of Dalian Ocean University 2012,27 (6) 83-87

天津海域春夏季鱼卵、仔稚鱼的种类组成与数量分布

作  者：
谷德贤;宓慧菁;刘茂利;刘国山
单  位：
天津市水产研究所
关键词：
鱼卵;仔稚鱼;天津海域
摘  要：
于2008年5—8月对天津海域的鱼卵、仔稚鱼进行了4个航次的调查,共采集到鱼卵26 654粒,仔稚鱼20 534尾,隶属于7目12科25种。鱼卵和仔稚鱼的平均密度分别为1.70、1.18 ind./m3;5月份鱼卵和仔稚鱼最多,6月份次之,8月份最少;与历史资料比较,5月份仍是天津海域鱼类的产卵高峰期,但5月份鱼卵和仔稚鱼所占比例有所下降;南部中心产卵场位置变化不大,北部中心产卵场向北移动。本研究结果表明,近年来天津海域鱼卵、仔稚鱼的种类和数量呈减少趋势,产卵场出现退化现象。
译  名：
Species composition and abundance of fish eggs,larvae,and juveniles in Tianjin sea area during spring and summer
作  者：
GU De-xian,MI Hui-jing,LIU Mao-li,LIU Guo-shan(Tianjin Fisheries Research Institute,Tianjin 300221,China)
关键词：
fish egg;fish larva and juvenile;coastal Tianjin
摘  要：
The species composition and abundance of fish eggs,larvae,and juveniles was surveyed monthly in Tianjin sea area during spring and summer from May to August in 2008.Total of 26 654 eggs and 20 534 larvae and juveniles were collected and identified to be 25 species,12 families and 7 orders during the four cruises.The eggs had an average density of 1.70 ind./m3 and the larvae and the juveniles 1.18 ind./m3,with the maximal abundance in May,followed by in June and the minimal abundance in August.Compared with the previous data,the spawning peak was still observed in May,but the abundance and proportion of fish eggs,larvae,and juveniles were found to be decreased in May.There was no significant change in the south center spawning ground,but the North center spawning ground was found to be moved northwards.The findings revealed that the species number and abundance of fish eggs,larvae,and juveniles were shown to be decreased,and the spawning ground shows degradation in Tianjin sea area in recent years.

相似文章

导出引用
计量
文章访问数: 8
HTML全文浏览量: 0
PDF下载量: 0

所属期刊

推荐期刊

友情链接Friendly link
农业信息研究所Agricultural information institute 农业智能知识服务平台Agricultural intelligent knowledge service platform 农业学术服务平台Agricultural Knowledge Service System 中国知网CNKI 维普网VIP 万方WANFANG DATA
联系我们Contact us

电话Tell：010-82109652-808

邮箱E-mail：agrijournal@caas.cn

服务Service
关于我们About us 意见建议Opinions and suggest
版权说明Copyright
单位：中国农业科学院农业信息研究所 中国农学会 © 2017中国农业科学院农业信息研究所 ICP备案号：京ICP备09089781号-46