Population structure,biomass and production of the West African lucinid <Emphasis Type="Italic">Keletistes rhizoecus</Emphasis> (Bivalvia,Mollusca) in Sivibilagbara swamp at Bodo Creek,Niger Delta,Nigeria |
| |
Authors: | N Zabbey A I Hart W J Wolff |
| |
Institution: | (1) Department of Animal Science and Fisheries, Faculty of Agriculture, University of Port Harcourt, Choba, PMB 5323, Rivers State, Nigeria;(2) Department of Animal and Environmental Biology, Faculty of Science, University of Port Harcourt, Choba, Nigeria;(3) Department of Marine Benthic Ecology and Evolution, University of Groningen, c/o Stationsweg 84-3, 6711 PV Ede, P.O. Box 14, 9750 AA Haren, The Netherlands |
| |
Abstract: | The West African lucinid bivalve Keletistes rhizoecus (Oliver, Basteria 50:47–64, 1986) is only known from the Niger Delta in Nigeria. Due to inaccessibility of its habitat population biology, growth parameters,
biomass, and annual secondary production are unknown. The danger of oil pollution threatens the localities where this species
occurs. Hence, ecological characteristics of the species were investigated quantitatively from May 2007 to April 2008 at Sivibilagbara,
a protected mangrove swamp at Bodo Creek in the lower Niger Delta. Density of this chemosymbiotic lucinid was significantly
higher than data previously reported. Temporal size distribution of the population showed minor changes due chiefly to recruitment
and growth increments. Recruits peaked in February and September. The species lifespan is estimated to be 1.2 years. The biomass
and production values are relatively high, but comparable to those of other bivalve species, especially those from nearby
Andoni intertidal flats. |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |
|