Volume 73, Issue 4 p. T69-T73

Effect of PSP Toxins in White Leg Shrimp Litopenaeus vannamei Boone, 1931

J. Pérez-Linares

J. Pérez-Linares

Authors Pérez-Linares and Ochoa are with Laboratorio de Biotoxinas, Centro de Investigaciones Biológicas del Noroeste (CIBNOR), Mar Bermejo Nr 195, Col. Playa Palo de Santa Rita, Apdo. Postal 128, C.P. 23090, La Paz, Baja California Sur, México. Author Gago-Martínez is with Dept. de Química Analítica y Alimentaria, Facultad de Química, Univ. de Vigo, Lagoas-Marcosende 36200, Vigo-Pontevedra, Spain. Direct inquiries to author Gago-Martínez (E-mail: [email protected] ).

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J.L. Ochoa

J.L. Ochoa

Authors Pérez-Linares and Ochoa are with Laboratorio de Biotoxinas, Centro de Investigaciones Biológicas del Noroeste (CIBNOR), Mar Bermejo Nr 195, Col. Playa Palo de Santa Rita, Apdo. Postal 128, C.P. 23090, La Paz, Baja California Sur, México. Author Gago-Martínez is with Dept. de Química Analítica y Alimentaria, Facultad de Química, Univ. de Vigo, Lagoas-Marcosende 36200, Vigo-Pontevedra, Spain. Direct inquiries to author Gago-Martínez (E-mail: [email protected] ).

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A. Gago-Martínez

A. Gago-Martínez

Authors Pérez-Linares and Ochoa are with Laboratorio de Biotoxinas, Centro de Investigaciones Biológicas del Noroeste (CIBNOR), Mar Bermejo Nr 195, Col. Playa Palo de Santa Rita, Apdo. Postal 128, C.P. 23090, La Paz, Baja California Sur, México. Author Gago-Martínez is with Dept. de Química Analítica y Alimentaria, Facultad de Química, Univ. de Vigo, Lagoas-Marcosende 36200, Vigo-Pontevedra, Spain. Direct inquiries to author Gago-Martínez (E-mail: [email protected] ).

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First published: 29 March 2008
Citations: 10

Abstract

ABSTRACT: Cultured shrimp are often exposed to different toxic products during rearing practices that may affect survival and quality of the product. An evaluation of the effects of paralytic shellfish toxins (PSP) from species of Gymnodinium catenatum in white leg shrimp (Litopenaeus vannamei) has been carried out in this study. Death was observed at doses > 5.0 MU (equivalent to 1.1 μg/g of STX), while lower doses provoked paralysis of pereiopods, disequilibrium, and abdominal spasms in the animals. Target organs such as the heart and brain were severely damaged, with cohesion loss and cell density reduction evidenced by histological analysis. Hence, pond productivity and quality of the harvested organisms may be affected by PSP toxins. This is the 1st report on the effect of PSP toxins from G. catenatum in white eg shrimp.