Coral reef fish communities of Mayotte (western Indian Ocean) two years after the impact of the 1998 bleaching event

Author:

Chabanet P.

Abstract

This study, conducted during the Coral Reef Observatory programme in 2000, was carried out at 9 localities: 4 on fringing reefs (0 and 3 m depth), 2 on inner reefs (0 and –3 m) and 3 on outer barrier reefs (3 and 6 m). Quantitative data were collected by visual census techniques along 50 m 5 m transects. The ichthyofauna is separated into fringing inner-reef communities and outer barrier-reef communities. Species richness and abundance were always higher at the deeper sites. These indices were also lower on fringing reef flats and higher on the outer barrier reefs. In terms of individual numbers, browsers of sessile invertebrates (mainly Chaetodontidae) are poorly represented in the fish community at all sites (3%). Planktivores are the dominant trophic category on the deeper sites (mean 63%) and herbivores on the shallower sites (mean 40%, mainly Acanthuridae). The high abundance of herbivores and the low abundance of browsers of sessile invertebrates could be due to altered benthic communities resulting from the 1998 bleaching event.

Publisher

CSIRO Publishing

Subject

Ecology,Aquatic Science,Ecology, Evolution, Behavior and Systematics,Oceanography

同舟云学术

1.学者识别学者识别

2.学术分析学术分析

3.人才评估人才评估

"同舟云学术"是以全球学者为主线,采集、加工和组织学术论文而形成的新型学术文献查询和分析系统,可以对全球学者进行文献检索和人才价值评估。用户可以通过关注某些学科领域的顶尖人物而持续追踪该领域的学科进展和研究前沿。经过近期的数据扩容,当前同舟云学术共收录了国内外主流学术期刊6万余种,收集的期刊论文及会议论文总量共计约1.5亿篇,并以每天添加12000余篇中外论文的速度递增。我们也可以为用户提供个性化、定制化的学者数据。欢迎来电咨询!咨询电话:010-8811{复制后删除}0370

www.globalauthorid.com

TOP

Copyright © 2019-2024 北京同舟云网络信息技术有限公司
京公网安备11010802033243号  京ICP备18003416号-3