珠江水系四大家鱼资源现状及空间分布特征研究
[Abstract]:The four domestic fishes are the main objects of freshwater farming and fishing in China, but there are few studies on the resources of the four major domestic fish in the Pearl River system. A comprehensive investigation was carried out in three seasons of 16 stations in the Pearl River basin in spring, summer and autumn from 2015 to 2016. The main fishing gear investigated were hook net, dripping gill net, fixed gill net and shrimp cage. A total of 965 fishes were collected, including 41 herring, 454 grass carp, 351 silver carp and 119 bighead carp, all of which were mainly 1-2 years old, accounting for about 70% of all individuals. The four domestic fishes are mainly distributed in the section of Xijiang River from Guiping to Zhaoqing, and the upper reaches of the Nanpan River and Wanfeng Lake Reservoir area. The maximum CPUE in the whole basin is the Lubuge section (5.68 kg);) in the Nanpanjiang River, and the lower CPUE value is less than 1.50 kg. in the middle and upper reaches of Hongshui River and Heshan River. The important tributaries of Dongjiang River, Liujiang River and Yujiang River have less resources than 2.00 kg.. The relationship between the spatial distribution pattern of four large fish species and environmental factors was analyzed by using redundancy analysis method (RDA). It was found that the river grade and the total installed capacity of river hydropower stations. Runoff and river depth are the main factors influencing the spatial distribution pattern of the four big domestic fishes in the Pearl River system. As a whole, the distribution of the four domestic fishes is mainly distributed in the main stream. The distribution of silver carp, grass carp and grass carp is mainly affected by the runoff and the depth of the river, and the construction of river hydropower station has the greatest influence on the distribution of grass carp. The results of the study will be of guiding significance for the conservation and sustainable utilization of fishery resources.
【作者单位】: 中国水产科学研究院珠江水产研究所中国水产科学研究院珠江流域渔业资源养护与生态修复重点实验室;农业部珠江中下游渔业资源环境重点野外科学观测试验站;
【基金】:中国水产科学研究院基本科研业务费项目(2015B01PT01) 广西省自然科学重大基金项目(2013GXNSFEA053003) 国家自然科学基金青年项目(31400354)资助~~
【分类号】:S931
【相似文献】
中国期刊全文数据库 前10条
1 邱顺林;刘绍平;黄木桂;陈大庆;段辛斌;;长江中游江段四大家鱼资源调查[J];水生生物学报;2002年06期
2 刘绍平;陈大庆;段辛斌;邱顺林;黄木桂;;长江中上游四大家鱼资源监测与渔业管理[J];长江流域资源与环境;2004年02期
3 花麒;吴志强;胡茂林;;抚河中游四大家鱼资源现状[J];江西水产科技;2009年04期
4 谢文星;黄道明;谢山;杨汉运;俞伏虎;张晓敏;雷欢;;丹江口水利枢纽兴建后汉江中下游四大家鱼等早期资源及其演变[J];水生态学杂志;2009年02期
5 李红炳;徐德平;;洞庭湖“四大家鱼”资源变化特征及原因分析[J];内陆水产;2008年06期
6 万正义;方春林;殷红梅;;长江瑞昌段“四大家鱼”鱼苗资源现状、开发及保护[J];江西水产科技;2012年01期
7 张建铭;吴志强;胡茂林;;赣江峡江段四大家鱼资源现状的研究[J];水生态学杂志;2010年01期
8 ;长江水系四大家鱼种质资源库通过国家验收[J];长江流域资源与环境;1993年02期
9 ;各地信息[J];现代渔业信息;2003年03期
10 李思发,吕国庆,周碧云;长江天鹅洲故道“四大家鱼”种质资源天然生态库建库可行性研究[J];水产学报;1995年03期
中国重要会议论文全文数据库 前1条
1 谢文星;黄道明;谢山;杨汉运;常秀岭;梁银铨;俞伏虎;简东;张庆;王文君;方艳红;;丹江水利枢纽兴建后汉江四大家鱼早期资源及其演变[A];2008年中国水产学会学术年会论文摘要集[C];2008年
中国硕士学位论文全文数据库 前3条
1 花麒;抚河抚州河段四大家鱼资源现状及其遗传多样性分析[D];南昌大学;2010年
2 李世健;长江中游监利断面鱼类早期资源量及浮游生物群落结构特征初步研究[D];华中农业大学;2011年
3 唐锡良;长江上游江津江段鱼类早期资源研究[D];西南大学;2010年
,本文编号:2201635
本文链接:https://www.wllwen.com/kejilunwen/zylw/2201635.html