NDLI: Fish community composition of a tropical nonestuarine embayment in Zanzibar, Tanzania

Content Provider	Springer Nature Link
Author	Lugendo, Blandina R Nagelkerken, Ivan Jiddawi, Narriman Mgaya, Yunus D Velde, Gerard
Copyright Year	2007
Abstract	By using a seine net, fish samples were taken from the nonestuarine Chwaka Bay (Zanzibar, Tanzania) from the mangroves, mud/sand flats and seagrass beds. Sampling was done twice per month between November 2001 and October 2002. In total, 150 fish species belonging to 55 families were identified. Diversity (H’) ranged from 1.9 in mud/sand flats to 3.4 within the Chwaka seagrass beds. Mean density of fishes was significantly higher in the mangrove creeks than in any other habitat (mean = 238.7 ind./1000 m$^{2}$. Highest, but non-significantly different mean biomasses were recorded in the mangrove creeks (1.7 kg/1000 m$^{2}$) and in the Marumbi seagrass beds (1.6 kg/1000 m$^{2}$). The mangrove channel had the lowest biomass (0.6 kg/1000 m$^{2}$). A high overlap in species composition (as high as 93.4% similarity) was found for adjoining habitats (i.e mangrove creeks and mangrove channel), while habitats that were far apart showed low overlap (6.6% similarity for the Marumbi seagrass beds and mangrove creeks). On average, 58.4 and 63.2% in terms of abundance and biomass, respectively, of the fish assemblage of Chwaka Bay were of commercial fishery importance. Thus, Chwaka Bay appears to be an important juvenile habitat for various commercially important fish species.
Starting Page	1213
Ending Page	1223
Page Count	11
File Format	PDF
ISSN	09199268
Journal	Fisheries Science
Volume Number	73
Issue Number	6
e-ISSN	14442906
Language	English
Publisher	Springer-Verlag
Publisher Date	2007-01-01
Publisher Place	Tokyo
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	fishes Indian Ocean mangroves marine bay seagrasses species overlap Fish & Wildlife Biology & Management Freshwater & Marine Ecology Food Science
Content Type	Text
Resource Type	Article
Subject	Aquatic Science

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