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| Registros recuperados: 11 | |
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| Carreto, J.I.; El Busto, C.; Sancho, H.; Carignan, M.O.; Yasumoto, T.; Oshima, Y.. |
| Toxin composition of three species of marine gastropods Zidona angulata, Adelomedon brasiliana and Pachycymbiola brasiliana and the mussel Mytilus edulis, and an Alexandrium tamarense isolate (AMI)from the Mar del Plata coast, were determined by means of a sensitive and specific HPLC technique. Cultures of A. tamarense contain N-sulfocarbamoyl derivatives as major toxins. The next most abundant components were GTX1 neoSTX and GTX4. As minor components, unusual decarbamoyl toxins were detected. Saxitoxin was the lowest of the 10 detectable toxins. Comparison of toxins profiles revealed significant differences between the toxic composition of the dinoflagellate and that accumulated in the tissues of their primary and secondary consumers. In the mussel M.... |
| Tipo: Journal Contribution |
Palavras-chave: Marine molluscs; Toxicity; Toxicity; Http://aims.fao.org/aos/agrovoc/c_7826. |
| Ano: 1996 |
URL: http://hdl.handle.net/1834/1956 |
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| Carballo Hondal, O.; Arencibia Carballo, G.; Concepción, J.; Isla Molleda, M.. |
| Many organic and in organic contaminants originated from human activities are deposited and concentrated in aquatic sediments. The purpose of this review article is to analyze and discuss, the objectives, procedures and applications of bioassays on the triad of marine sediments, aiming at a reflection on the possibility of implementing regulations on the environmental monitoring of these studies in our country, so as to improve the environmental quality and its management on coastal zones. The main objective is to highlight the understanding of the adequate application and interpretation of bioassays. A summary of reports is presented, knowledge and analysis concerning marine sediments including, the chemical analysis, the direct determination of... |
| Tipo: Journal Contribution |
Palavras-chave: Toxicity; Sediments; Bioassays; Toxicity; Bioassays; Http://aims.fao.org/aos/agrovoc/c_7826; Http://aims.fao.org/aos/agrovoc/c_15731. |
| Ano: 2010 |
URL: http://hdl.handle.net/1834/3670 |
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| Suárez Álvarez, G.. |
| Este trabajo trata de presentar los efectos tóxicos de cuatro posibles contaminantes de la plataforma cubana, un plaguicida órgano clorado el DDT y 3 metales, el cromo, el cobre y el plomo, sobre postlarvas de langosta P. argus y el camarón P. notialis. Persiguiendo un triple propósito en sus objetivos, presentar de una forma cómoda, con fines didácticos la resolución de los tres métodos de trabajo adoptados internacionalmente para evaluar la toxicidad, el método gráfico semi logarítmico, rutinario o estándar, el método de los Probits de Bliss y la modificación de Licthfield y wilcoxon, así como analizar de dichas metodologías cual es la más adecuada para la evaluación de los efectos de cualquier contaminante con mayor precisión estadística y conocer los... |
| Tipo: Theses and Dissertations |
Palavras-chave: Toxicity; Heavy metals; Metals; Toxicity; Heavy metals; Metals; Http://aims.fao.org/aos/agrovoc/c_7826; Http://aims.fao.org/aos/agrovoc/c_2223; Http://aims.fao.org/aos/agrovoc/c_29036. |
| Ano: 1996 |
URL: http://hdl.handle.net/1834/2610 |
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| Montoya, N.G.; Akselman, R.; Pájaro, M.; Perrotta, R.G.; Carreto, J.I.. |
| 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... |
| Tipo: Journal Contribution |
Palavras-chave: Toxicity; Algal blooms; Biological poisons; Stomach; Toxicity; Stomach; Algal blooms; Http://aims.fao.org/aos/agrovoc/c_7826; Http://aims.fao.org/aos/agrovoc/c_7422; Http://aims.fao.org/aos/agrovoc/c_32367. |
| Ano: 1997 |
URL: http://hdl.handle.net/1834/1939 |
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| Arencibia Carballo, G.; Tizol Correa, R. A.; Rodríguez, R. O.. |
| Se presentan los resultados de la determinación de la LC50 para 24 h de exposición mediante una prueba de toxicidad aguda en Artemia franciscana. Se caracterizó una cepa, la cual según los resultados se evaluó de primera calidad y se aplicaron criterios importantes para el empleo de sus nauplios en dichas pruebas. Se determinó la toxicidad de los insecticidas piretroides, cipermetrina y permetrina reportándose los valores de 4,72 y 26,7 μg/mL de CL50 para 24 h respectivamente. El protocolo experimental descrito es apropiado para evaluar el efecto tóxico de compuestos químicos. Los resultados en el uso de pruebas con Artemia demuestran su versatilidad práctica y economía para la utilización en las evaluaciones de los mismos tóxicos. Estos experimentos... |
| Tipo: Journal Contribution |
Palavras-chave: Toxicity; Toxicity; Http://aims.fao.org/aos/agrovoc/c_7826. |
| Ano: 2010 |
URL: http://hdl.handle.net/1834/4116 |
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| Registros recuperados: 11 | |
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