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Abstract:

The stomach contents of 532 adult specimens of the Argentine anchovy, Engraulis anchoita, caught in coastal waters of the Argentine Sea from 1994 to 1996, were analyzed. Larger amounts of food were found in the stomachs of anchovies collected in the northern surveys (35-40°S), with the highest values attained in 1994. Main diet items were copepods, appendicularians, cladocerans, fish eggs, and pteropods. Anchovies caught in the southern surveys (40-45°S) ingested less food, whereby the main items were copepods and appendicularians. Plankton samples collected simultaneously with the fishing trawls were also analyzed. Except for Fritillaria borealis, which occurred only in plankton samples, the same appendicularian species (Oikopleura dioica and O. fusiformis) were found in both stomach contents and in plankton samples. The Ivlev selectivity index calculated for O. dioica and O. fusiformis and for the different maturity stages of both species were in all cases ∼0, supporting the hypothesis of a non-selective feeding. © 2005 Blackwell Verlag, Berlin.

Registro:

Documento: Artículo
Título:Appendicularians: An important food supply for the Argentine anchovy Engraulis anchoita in coastal waters
Autor:Capitanio, F.L.; Pájaro, M.; Esnal, G.B.
Filiación:Departamento de Ciencias Biológicas, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, C1428EHA Buenos Aires, Argentina
Instituto Nacional de Investigación y Desarrollo Pesquero (INIDEP), Mar del Plata, Argentina
Palabras clave:coastal water; feeding behavior; fish; food supply; plankton; trawling; Argentine Shelf; Atlantic Ocean; Appendicularia (class); Copepoda; Engraulidae; Engraulis anchoita; Fritillaria (appendicularian); Fritillaria borealis; Oikopleura dioica; Pteropoda
Año:2005
Volumen:21
Número:5
Página de inicio:414
Página de fin:419
DOI: http://dx.doi.org/10.1111/j.1439-0426.2005.00657.x
Título revista:Journal of Applied Ichthyology
Título revista abreviado:J. Appl. Ichthyol.
ISSN:01758659
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_01758659_v21_n5_p414_Capitanio

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Citas:

---------- APA ----------
Capitanio, F.L., Pájaro, M. & Esnal, G.B. (2005) . Appendicularians: An important food supply for the Argentine anchovy Engraulis anchoita in coastal waters. Journal of Applied Ichthyology, 21(5), 414-419.
http://dx.doi.org/10.1111/j.1439-0426.2005.00657.x
---------- CHICAGO ----------
Capitanio, F.L., Pájaro, M., Esnal, G.B. "Appendicularians: An important food supply for the Argentine anchovy Engraulis anchoita in coastal waters" . Journal of Applied Ichthyology 21, no. 5 (2005) : 414-419.
http://dx.doi.org/10.1111/j.1439-0426.2005.00657.x
---------- MLA ----------
Capitanio, F.L., Pájaro, M., Esnal, G.B. "Appendicularians: An important food supply for the Argentine anchovy Engraulis anchoita in coastal waters" . Journal of Applied Ichthyology, vol. 21, no. 5, 2005, pp. 414-419.
http://dx.doi.org/10.1111/j.1439-0426.2005.00657.x
---------- VANCOUVER ----------
Capitanio, F.L., Pájaro, M., Esnal, G.B. Appendicularians: An important food supply for the Argentine anchovy Engraulis anchoita in coastal waters. J. Appl. Ichthyol. 2005;21(5):414-419.
http://dx.doi.org/10.1111/j.1439-0426.2005.00657.x