Nematode community structure and distribution along the Kenyan continental shelf

IF 1.4 4区 生物学 Q3 MARINE & FRESHWATER BIOLOGY
SM Hashim, A. Muthumbi, JM Githaiga, J. Okondo
{"title":"Nematode community structure and distribution along the Kenyan continental shelf","authors":"SM Hashim, A. Muthumbi, JM Githaiga, J. Okondo","doi":"10.2989/1814232X.2022.2101525","DOIUrl":null,"url":null,"abstract":"Meiofauna communities were analysed from samples collected at four stations on the Kenyan continental shelf (Shimoni, Kwale, Mombasa and Kilifi) during the maiden cruise of the RV Mtafiti, 12–21 December 2015. Nematodes were identified to genus level, and their distribution and composition were mainly influenced by grain size distribution, a finding similar to studies in other areas with a similar grain size distribution (iso-communities). The southern stations (Shimoni and Kwale) had coarser sediments than the northern stations (Mombasa and Kilifi). The family Chromadoridae was dominant at Shimoni, while Cyatholaimidae dominated at Kwale. Mombasa was dominated by Chromadoridae, Cyatholaimidae and Oxystominidae, and Kilifi by Xyalidae. The dominant genera portrayed a trend similar to that observed in the families, in that the dominant genera were members of the dominant families. Spilophorella was dominant at Shimoni, and Paracanthonchus, Paracyatholaimus, Desmodora, Microlaimus and Draconema were dominant at Kwale and Mombasa. Microlaimus, Daptonema and Terschellingia represented the highest abundances at Kilifi. All stations were dominated by epistratum feeders. Selective deposit feeders were the second-most-dominant feeding guild at Mombasa and Kwale, whereas non-selective feeders had the second-highest abundance at Kilifi. The diversity index was highest at Mombasa and lowest at Shimoni, whereas dominance was highest at Shimoni and lowest at Mombasa.","PeriodicalId":7719,"journal":{"name":"African Journal of Marine Science","volume":null,"pages":null},"PeriodicalIF":1.4000,"publicationDate":"2022-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"African Journal of Marine Science","FirstCategoryId":"99","ListUrlMain":"https://doi.org/10.2989/1814232X.2022.2101525","RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"MARINE & FRESHWATER BIOLOGY","Score":null,"Total":0}
引用次数: 0

Abstract

Meiofauna communities were analysed from samples collected at four stations on the Kenyan continental shelf (Shimoni, Kwale, Mombasa and Kilifi) during the maiden cruise of the RV Mtafiti, 12–21 December 2015. Nematodes were identified to genus level, and their distribution and composition were mainly influenced by grain size distribution, a finding similar to studies in other areas with a similar grain size distribution (iso-communities). The southern stations (Shimoni and Kwale) had coarser sediments than the northern stations (Mombasa and Kilifi). The family Chromadoridae was dominant at Shimoni, while Cyatholaimidae dominated at Kwale. Mombasa was dominated by Chromadoridae, Cyatholaimidae and Oxystominidae, and Kilifi by Xyalidae. The dominant genera portrayed a trend similar to that observed in the families, in that the dominant genera were members of the dominant families. Spilophorella was dominant at Shimoni, and Paracanthonchus, Paracyatholaimus, Desmodora, Microlaimus and Draconema were dominant at Kwale and Mombasa. Microlaimus, Daptonema and Terschellingia represented the highest abundances at Kilifi. All stations were dominated by epistratum feeders. Selective deposit feeders were the second-most-dominant feeding guild at Mombasa and Kwale, whereas non-selective feeders had the second-highest abundance at Kilifi. The diversity index was highest at Mombasa and lowest at Shimoni, whereas dominance was highest at Shimoni and lowest at Mombasa.
肯尼亚大陆架线虫群落结构与分布
2015年12月12日至21日,在Mtafiti号RV首次巡航期间,从肯尼亚大陆架四个站(Shimoni、Kwale、Mombasa和Kilifi)采集的样本中分析了小型底栖生物群落。线虫被鉴定为属级,它们的分布和组成主要受粒度分布的影响,这一发现与其他粒度分布相似的地区(等群落)的研究相似。南部站点(Shimoni和Kwale)的沉积物比北部站点(Mombasa和Kilifi)的沉积物更粗糙。Chloradoridae家族在Shimoni占主导地位,而Cyatholaimidae家族在Kwale占主导地位。蒙巴萨主要由Chromadodae、Cyatholaimidae和Oxystominidae组成,Kilifi主要由Xyadae组成。优势属呈现出与科中观察到的趋势相似的趋势,即优势属是优势科的成员。Spilophorella在Shimoni占优势,Paracantonchus、Paracyatholaimus、Desmodora、Microlaimus和Draconema在Kwale和Mombasa占优势。Microlaimus、Daptonema和Terschellingia在Kilifi的丰度最高。所有车站都以上层馈线为主。选择性沉积物饲养者是蒙巴萨和夸莱第二大主要饲养群体,而非选择性饲养者在基利菲的丰度第二高。蒙巴萨的多样性指数最高,希莫尼最低,而希莫尼的优势度最高,蒙巴萨最低。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
求助全文
约1分钟内获得全文 求助全文
来源期刊
African Journal of Marine Science
African Journal of Marine Science 生物-海洋与淡水生物学
CiteScore
2.60
自引率
16.70%
发文量
17
审稿时长
6-12 weeks
期刊介绍: The African (formerly South African) Journal of Marine Science provides an international forum for the publication of original scientific contributions or critical reviews, involving oceanic, shelf or estuarine waters, inclusive of oceanography, studies of organisms and their habitats, and aquaculture. Papers on the conservation and management of living resources, relevant social science and governance, or new techniques, are all welcomed, as are those that integrate different disciplines. Priority will be given to rigorous, question-driven research, rather than descriptive research. Contributions from African waters, including the Southern Ocean, are particularly encouraged, although not to the exclusion of those from elsewhere that have relevance to the African context. Submissions may take the form of a paper or a short communication. The journal aims to achieve a balanced representation of subject areas but also publishes proceedings of symposia in dedicated issues, as well as guest-edited suites on thematic topics in regular issues.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信