INVESTIGADORES
MARTINEZ Fernando Joaquin
artículos
Título:
Spring and summer ichthyoplankton assemblages in a temperate Patagonian gulf: an overview of temporal and spatial patterns on their structure
Autor/es:
VILLANUEVA-GOMILA, G. L.; EHRLICH, M. D.; MARTÍNEZ, F. J.; WILLIAMS, G. N.; VENERUS, L. A.
Revista:
ANAIS DA ACADEMIA BRASILEIRA DE CIENCIAS.
Editorial:
ACAD BRASILEIRA DE CIENCIAS
Referencias:
Lugar: Rio de Janeiro; Año: 2020
ISSN:
0001-3765
Resumen:
Knowing about the spatio-temporal patterns in the structure of ichthyoplanktonassemblages allows inferring about the spawning behaviour of adult fishes, understandingthe recruitment dynamics, and predicting the potential effects of mid- and long-termchanges. Here, we studied the ichthyoplankton assemblages from the San José Gulf(Northern Patagonia, Argentina) and investigated their changes in space and time. To dothat, we took monthly samples during two consecutive years, in spring and summer. Atotal of 2088 larvae were caught; they comprised 36 taxa, from which 14 were identifiedto species, two to genus, one to family and one to order. There were large differencesin the structure of the assemblages between years, coincidently with marked changesin the surface water temperature. The structure of the ichthyoplankton assemblagesalso showed significant differences between the spring and summer: Helcogrammoidescunninghami, Dules auriga and larvae belonging to the family Engraulidae contributedmost to these differences. The species diversity was higher in the colder year than in thewarmer one. We discuss the potential role of environmental and oceanographic featureson the interannual variability in the early stages of coastal fishes within a small gulf