Salvato in:
| Autore principale: | |
|---|---|
| Natura: | Artículo científico |
| Lingua: | en |
| Pubblicazione: |
Universidad Autónoma de Baja California
2002
|
| Soggetti: | |
| Accesso online: | https://www.redalyc.org/articulo.oa?id=48028408 |
| Tags: |
Aggiungi Tag
Nessun Tag, puoi essere il primo ad aggiungerne!!
|
Sommario:
- Sensitivity of Mediterranean amphipods and sea urchins to reference toxicants A. Marín L. Marín Guirao A. Cesar R. Vita Ciencias de la Tierra toxicity Amphipods sea urchins reference toxicants Toxicity tests were performed in two amphipod species, Gammarus aequicauda and Microdeutopus gryllotalpa, and three seaurchin species, Arbacia lixula, Paracentrotus lividus and Sphaerechinus granularis. The sensitivity of these marine organismswas evaluated by acute toxicity tests with amphipod juveniles and short chronic embryo-larval tests in sea urchins using thereference toxicants, ammonium chloride (NH4Cl), cadmium chloride (CdCl2), potassium dichromate (K2Cr2O7), sodium dodecylsulfate(C12H25NaO4S) and zinc sulfate (ZnSO4). The acute toxicity tests in amphipods clearly demonstrated the toxicity gradientof these substances. A two-way ANOVA analysis showed that M. gryllotalpa was more sensitive than G. aequicauda to all thereference toxicants studied (P < 0.0001). The tests conducted with sea urchins also pointed to a toxicant gradient and theseorganisms were seen to be more sensitive than amphipods. The two-way ANOVA analysis showed no significant differences inthe IC25 and IC50 values for each reference toxicant in the three sea urchin species. The interaction of sea urchin species and areference toxicant had no significant effect (two-way ANOVA, P = 0.9), the sensitivity of these Mediterranean species andgroups being similar to that of other amphipod and sea urchin species found in the bibliography. The objective of our study is toprovide ecotoxicological tools to evaluate the potential toxicity of Mediterranean benthic ecosystems, and in this work, wecharacterize the toxicity of reference toxicants towards autochthonous species of amphipods and sea urchins 2002 artículo científico 0185-3880 https://www.redalyc.org/articulo.oa?id=48028408 en http://www.redalyc.org/revista.oa?id=480 Ciencias Marinas application/pdf Universidad Autónoma de Baja California Ciencias Marinas (México) Num.4 Vol.28