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Please use this identifier to cite or link to this item: http://hdl.handle.net/1834/1939

Title: Mortandad de caballa Scomber japonicus en la plataforma bonaerense (Mar Argentino)asociada a un florecimiento del dinoflagelado tóxico Alexandrium tamarense.
Other Titles: Mackerel Scomber japonicus kills in shelf Argentine Seawaters associated to a bloom of the toxigenic dinoflagellate Alexandrium tamarense.
Authors: Montoya, N.G.
Akselman, R.
Pájaro, M.
Perrotta, R.G.
Carreto, J.I.
ASFA Terms: Toxicity
Algal blooms
Biological poisons
Stomach
Issue Date: 1997
Publisher: Mar del Plata: Instituto Nacional de Investigación y Desarrollo Pesquero (INIDEP)
Citation: Revista de Investigación y Desarrollo Pesquero, 11. p. 145-152
Abstract: Spring blooms of the toxic dinoflagellate Alexandrium tamarense in the Argentine sea produce shellfish toxicity through the parallytic shellfish poison (PSP)accumulation. The trace PSP content in the mackerel Scomber japonicus liver was previously demonstrated in the Buenos Aires province coastal region (Carreto et al, 1993a),and a certain capability to accumulate the toxins was suggested.However, it was up to spring 1993 when a great number of PSP intoxicated mackerels where detected for the first time in a wideshelf area off the Buenos Aires province. This area, known as 'El Rincón' (39°00'-40°30'S), has become a growing importance mackerel fishing ground during the last few years. A high PSP concentration was determined in those mackerels, being the maximum located in the stomach content (2800 ugSTXeq/100g). It was predominantly composed of gelatinous zooplankton and a high concentration of A. tamarence cells indicating a probable way for the toxins transference. The mackerels mortality area corresponded with the A. tamarense maximum concentration in the Buenos Aires province coastal region, where a widespread water discoloration was produced.
URI: http://hdl.handle.net/1834/1939
ISSN: 0325-6375
Appears in Collections:1. Revista de Investigación y Desarrollo Pesquero

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