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Cadmium and Copper Effects on Larval Development and Mortality of the Polychaete Capitella Sp Y from Estero Del Yugo, Mazatlan, Mexico

Authors
  • Méndez, Nuria1
  • Green-Ruiz, Carlos1
  • 1 Instituto de Ciencias del Mar y Limnología, Unidad Académica Mazatlán, UNAM. Apdo. Postal 811, Mazatlán, Sinaloa, 82000, México , Mazatlán, Sinaloa (Mexico)
Type
Published Article
Journal
Water Air & Soil Pollution
Publisher
Springer-Verlag
Publication Date
Mar 15, 2006
Volume
171
Issue
1-4
Pages
291–299
Identifiers
DOI: 10.1007/s11270-005-9047-0
Source
Springer Nature
Keywords
License
Yellow

Abstract

The effects of cadmium and copper on larval metamorphosis and mortality of cultured Capitella sp Y were investigated. Metatrochophore larvae were exposed to 0.013 (control), 0.030, 0.080, 0.120, and 0.170 mg Cd L−1 and 0.017 (control), 0.025, 0.060, and 0.075 mg Cu L−1 for 34 days. Larval mortality significantly (p < 0.01) increased with increasing Cd and Cu concentrations (Kruskal-Wallis test), with similar effects for both metals for day 10 (LC50 = 0.035 mg Cd L−1 and 0.035 mg Cu L−1). Metamorphosis was inhibited in larvae exposed to the two metals in the absence of food, the effect of Cu being the most severe. This study suggests that Cd and Cu exposure could be harmful to early developmental stages of Capitella sp Y producing a delay in recruitment into natural populations.

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