INVESTIGADORES
LOMOVASKY Betina Judith
artículos
Título:
Growth and production of the venerid bivalve Eurhomalea exalbida in the Beagle Channel, Tierra del Fuego.
Autor/es:
BETINA JUDITH LOMOVASKY; THOMAS BREY,; ELBA MORRICONI,; JORGE CALVO,
Revista:
JOURNAL OF SEA RESEARCH
Editorial:
Elsevier
Referencias:
Lugar: Amsterdam; Año: 2002 vol. 48 p. 209 - 216
ISSN:
1385-1101
Resumen:
Growth, mortality and productivity of the hard clam Eurhomalea exalbida from Ushuaia Bay, Beagle Channel, were investigated. The parameters of the von Bertalanffy growth function were estimated to be Hl = 74 mm, K = 0.18 y 1, t0 = 0.15 y. Maximum individual production amounted to 2.74 g shell-free wet mass (SFWM) at 49.5 mm shell height. Animals between 40 mm and 70 mm shell height contributed most to overall population somatic production P of 134 g SFWM m 2Eurhomalea exalbida from Ushuaia Bay, Beagle Channel, were investigated. The parameters of the von Bertalanffy growth function were estimated to be Hl = 74 mm, K = 0.18 y 1, t0 = 0.15 y. Maximum individual production amounted to 2.74 g shell-free wet mass (SFWM) at 49.5 mm shell height. Animals between 40 mm and 70 mm shell height contributed most to overall population somatic production P of 134 g SFWM m 2l = 74 mm, K = 0.18 y 1, t0 = 0.15 y. Maximum individual production amounted to 2.74 g shell-free wet mass (SFWM) at 49.5 mm shell height. Animals between 40 mm and 70 mm shell height contributed most to overall population somatic production P of 134 g SFWM m 2 2 y 1. Mean annual biomass B amounted to 1123 g SFWM m 2 y 1. Annual P/B ratio and mortality rate Z were estimated to be 0.12 y 1 and 0.14 y 1, respectively. Slow growth and low turnover make this population less suitable for sustainable commercial exploitation. 1. Mean annual biomass B amounted to 1123 g SFWM m 2 y 1. Annual P/B ratio and mortality rate Z were estimated to be 0.12 y 1 and 0.14 y 1, respectively. Slow growth and low turnover make this population less suitable for sustainable commercial exploitation. 1 and 0.14 y 1, respectively. Slow growth and low turnover make this population less suitable for sustainable commercial exploitation.
