Growth and production of the venerid bivalve Eurhomalea exalbida in the Beagle Channel, Tierra del Fuego


Contact
tbrey [ at ] awi-bremerhaven.de

Abstract

Growth, mortality and productivity of the hard clam E. exalbida from Ushuaia Bay, Beagle Channel were investigated. The parameters of the von Bertalanffy growth function were estimated to be H = 73.98 mm, K = 0.180 y 1, t0 = 0.147 y. Maximum individual production amounted to 2.742 g shell free wet mass (SFWM) at 49.5 mm shell height. Animals between 40 mm and 70 mm shell height contribute most to overall population somatic production P of 133.89 g SFWM m-2 y-1. Mean annual biomass B amounted to 1122.69 g SFWM m-2 y-1. Annual P/B ratio and mortality rate Z were estimated to 0.119 y-1 and 0.141 y-1, respectively. Slow growth and low turnover makes this population less suitable for sustainable commercial exploitation.



Item Type
Article
Authors
Divisions
Programs
Publication Status
Published
Eprint ID
5084
DOI 10.1016/s1385-1101(02)00134-X

Cite as
Lomovasky, B. , Brey, T. , Morriconi, E. and Calvo, J. (2002): Growth and production of the venerid bivalve Eurhomalea exalbida in the Beagle Channel, Tierra del Fuego , Journal of Sea Research, 48 , pp. 209-216 . doi: 10.1016/s1385-1101(02)00134-X


Download
[thumbnail of Fulltext]
Preview
PDF (Fulltext)
Lom2002b.pdf

Download (307kB) | Preview
Cite this document as:

Share
Add to AnyAdd to TwitterAdd to FacebookAdd to LinkedinAdd to PinterestAdd to Email


Citation

Research Platforms
N/A

Campaigns
N/A


Actions
Edit Item Edit Item