散斑厚翅猴的摄食生态学研究鲇形目;一种产于印度东北部漫滩湿地的小型淡水鱼

Q3 Environmental Science

Ribarstvo, Croatian Journal of Fisheries Pub Date : 2020-09-01 DOI:10.2478/cjf-2020-0011

B. Gogoi, D. Das, S. K. Saikia

{"title":"散斑厚翅猴的摄食生态学研究鲇形目;一种产于印度东北部漫滩湿地的小型淡水鱼","authors":"B. Gogoi, D. Das, S. K. Saikia","doi":"10.2478/cjf-2020-0011","DOIUrl":null,"url":null,"abstract":"\n The feeding ecology of Pachypterus atherinoides was investigated for two consecutive years (2013-2015) from floodplain wetlands in the Subansiri river basin of Assam, North East India. The analysis of its gut content revealed the presence of 62 genera of planktonic life forms along with other animal matters. The organization of the alimentary tract and maximum Relative Mean Length of Gut (0.511±0.029 mm) indicated its carnivorous food habit. The peak gastro-somatic index (GSI) in winter-spring seasons and summer-rainy seasons indicated alteration of its feeding intensity. Furthermore, higher diet breadth on resource use (Levins’ and Hurlbert’s) with zooplankton compared to phytoplankton and total plankton confirmed its zooplanktivore habit. The feeding strategy plots also suggested greater preference to zooplankton compared to phytoplankton. The organization of its gill rakers specified a secondary modification of gut towards either carnivory or specialized zooplanktivory. So, the fish may be a carni-omnivore with preference to zooplankton.","PeriodicalId":38161,"journal":{"name":"Ribarstvo, Croatian Journal of Fisheries","volume":" ","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2020-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":"{\"title\":\"Feeding Ecology of Pachypterus atherinoides (Actinopterygii; Siluriformes; Schilbeidae): A Small Freshwater Fish from Floodplain Wetlands of Northeast India\",\"authors\":\"B. Gogoi, D. Das, S. K. Saikia\",\"doi\":\"10.2478/cjf-2020-0011\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"\\n The feeding ecology of Pachypterus atherinoides was investigated for two consecutive years (2013-2015) from floodplain wetlands in the Subansiri river basin of Assam, North East India. The analysis of its gut content revealed the presence of 62 genera of planktonic life forms along with other animal matters. The organization of the alimentary tract and maximum Relative Mean Length of Gut (0.511±0.029 mm) indicated its carnivorous food habit. The peak gastro-somatic index (GSI) in winter-spring seasons and summer-rainy seasons indicated alteration of its feeding intensity. Furthermore, higher diet breadth on resource use (Levins’ and Hurlbert’s) with zooplankton compared to phytoplankton and total plankton confirmed its zooplanktivore habit. The feeding strategy plots also suggested greater preference to zooplankton compared to phytoplankton. The organization of its gill rakers specified a secondary modification of gut towards either carnivory or specialized zooplanktivory. So, the fish may be a carni-omnivore with preference to zooplankton.\",\"PeriodicalId\":38161,\"journal\":{\"name\":\"Ribarstvo, Croatian Journal of Fisheries\",\"volume\":\" \",\"pages\":\"\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2020-09-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"1\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Ribarstvo, Croatian Journal of Fisheries\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.2478/cjf-2020-0011\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"Environmental Science\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Ribarstvo, Croatian Journal of Fisheries","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.2478/cjf-2020-0011","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"Environmental Science","Score":null,"Total":0}

引用次数: 1

摘要

连续两年（2013-2015年）在印度东北部阿萨姆邦苏班西里河流域的洪泛平原湿地调查了斑蝶的觅食生态。对其肠道内容物的分析揭示了62属浮游生命形式以及其他动物物质的存在。消化道的组织结构和最大相对平均肠长（0.511±0.029mm）表明其为肉食性食物。冬春季和夏季雨季的胃体细胞指数峰值表明其进食强度发生了变化。此外，与浮游植物和总浮游生物相比，浮游动物在资源利用方面的饮食广度更高（Levins和Hurlbert），证实了其浮游动物的习性。喂食策略图还表明，与浮游植物相比，人们更喜欢浮游动物。其鳃耙的组织特征是对肠道进行了二次改造，使其成为肉食性或专门的浮游动物。因此，这种鱼可能是肉食性杂食动物，更喜欢浮游动物。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

查看原文本刊更多论文

Feeding Ecology of Pachypterus atherinoides (Actinopterygii; Siluriformes; Schilbeidae): A Small Freshwater Fish from Floodplain Wetlands of Northeast India

The feeding ecology of Pachypterus atherinoides was investigated for two consecutive years (2013-2015) from floodplain wetlands in the Subansiri river basin of Assam, North East India. The analysis of its gut content revealed the presence of 62 genera of planktonic life forms along with other animal matters. The organization of the alimentary tract and maximum Relative Mean Length of Gut (0.511±0.029 mm) indicated its carnivorous food habit. The peak gastro-somatic index (GSI) in winter-spring seasons and summer-rainy seasons indicated alteration of its feeding intensity. Furthermore, higher diet breadth on resource use (Levins’ and Hurlbert’s) with zooplankton compared to phytoplankton and total plankton confirmed its zooplanktivore habit. The feeding strategy plots also suggested greater preference to zooplankton compared to phytoplankton. The organization of its gill rakers specified a secondary modification of gut towards either carnivory or specialized zooplanktivory. So, the fish may be a carni-omnivore with preference to zooplankton.

求助全文

通过发布文献求助，成功后即可免费获取论文全文。去求助

来源期刊

Ribarstvo, Croatian Journal of Fisheries Environmental Science-Ecology

CiteScore

1.10

自引率

0.00%

发文量

审稿时长

10 weeks

期刊介绍： The Croatian Journal of Fisheries was established in 1938 and today possesses a long-term tradition of publishing papers that deal with both freshwater and marine fisheries. Areas covered by the Journal include ichthyology, aquaculture, ecology and diseases of fish and other aquatic organisms, problems of open waters and other topics related to the fisheries field. Prior to publication, articles pass through rigorous review by senior scientists from around the world. The Journal features articles that reflect original research, interpretative content and subject matter of interest to the fisheries profession.