Artículo
Distribution pattern, density and growth of the stout razor clam Tagelus plebeius in a South-west Atlantic estuarine system
Fecha de publicación:
05/2018
Editorial:
Cambridge University Press
Revista:
Journal of the Marine Biological Association of the United Kingdom
ISSN:
0025-3154
e-ISSN:
1469-7769
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
The population biology of the stout razor clam Tagelus plebeius is poorly understood, despite the species' current wide distribution, and the potential use of its Holocene shell deposits to infer past environmental and ecological conditions. This study investigates distribution and growth pattern of T. plebeius in the south-western Atlantic Mar Chiquita Coastal lagoon (37°32′S 57°19′W), Argentina. The population includes the oldest individuals (up to 27 years) reported so far with shell length up to 77.9 mm. A von Bertalanffy model with L = 67.60 mm (95% CI = 64.55; 70.64), k = 0.181 year-1 (CI = 0.142; 0.218), and t0 = -0.77 (CI = -1.46; -0.08) best described their individual growth for the whole population. The higher density, growth rate k, t0 and maximum age and lower L were in the low intertidal rather than in the medium intertidal, but there were no differences in density and age between medium and high intertidal. Given the results and the current knowledge on the effects of different factors influencing this species, we conclude that the distribution pattern and shell growth observed in our study reflect a response to metabolic necessities in combination with a strong influence of biological interactions.
Palabras clave:
AGE
,
GROWTH
,
MAR CHIQUITA COASTAL LAGOON
,
RAZOR CLAM
,
TAGELUS PLEBEIUS
Archivos asociados
Licencia
Identificadores
Colecciones
Articulos(IIMYC)
Articulos de INSTITUTO DE INVESTIGACIONES MARINAS Y COSTERAS
Articulos de INSTITUTO DE INVESTIGACIONES MARINAS Y COSTERAS
Citación
Lomovasky, Betina Judith; Brey, Thomas; Klügel, Andreas; Iribarne, Oscar Osvaldo; Distribution pattern, density and growth of the stout razor clam Tagelus plebeius in a South-west Atlantic estuarine system; Cambridge University Press; Journal of the Marine Biological Association of the United Kingdom; 98; 3; 5-2018; 485-494
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