Development of a harpacticoid copepod bioassay: selection of species and relative sensitivity to zinc, atrazine and phenanthrene.
Ecotoxicol Environ Saf
; 80: 363-71, 2012 Jun.
Article
en En
| MEDLINE
| ID: mdl-22521687
Worldwide, estuaries are under increasing pressure from numerous contaminants. This study aimed to identify a suitable marine harpacticoid copepod species for toxicity testing of New Zealand estuaries. Multiple aspects were considered for species selection and included: a broad regional distribution, ease of culture, reproductive rate under laboratory conditions, sexual dimorphism, and sensitivity to contaminants. Five species were evaluated and two (Robertsonia propinqua and Quinquelaophonte sp.) were able to be cultured. The relative sensitivity of these copepods to three reference toxicants was assessed by determining the medial lethal values following a 96 h exposure (96 h LC(50)) to these toxicants in the aquatic phase. LC(50) values for zinc, phenanthrene, and atrazine respectively were 2.0, 0.89, and 7.58 mg/L in R. propinqua and 0.64, 0.75, and 20.8 mg/L in Quinquelaophonte sp. After evaluating all factors involved in choosing a bioassay species for New Zealand, Quinquelaophonte sp. was selected as the most suitable bioassay species.
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Fenantrenos
/
Atrazina
/
Contaminantes Químicos del Agua
/
Zinc
/
Bioensayo
/
Monitoreo del Ambiente
Tipo de estudio:
Diagnostic_studies
/
Prognostic_studies
Límite:
Animals
País/Región como asunto:
Oceania
Idioma:
En
Revista:
Ecotoxicol Environ Saf
Año:
2012
Tipo del documento:
Article
País de afiliación:
Nueva Zelanda
Pais de publicación:
Países Bajos