TY - JOUR
T1 - Development of a harpacticoid copepod bioassay
T2 - Selection of species and relative sensitivity to zinc, atrazine and phenanthrene
AU - Stringer, Tristan J.
AU - Glover, Chris N.
AU - Keesing, Vaughan
AU - Northcott, Grant L.
AU - Tremblay, Louis A.
N1 - Funding Information:
This work was supported by the New Zealand Ministry for Science and Innovation and the University of Canterbury Doctoral Scholarship (TJS) . We thank Professor John Wells for his invaluable contribution to this study. We also thank Sally Gaw and Rob Stainthorpe (University of Canterbury) for assistance with metal analysis; Guy Forrester (Landcare Research) for advice on statistics; Katherine Trought (Landcare Research) for technical assistance; and Christine Bezar (Landcare Research) for editorial comments.
PY - 2012/6/1
Y1 - 2012/6/1
N2 - 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 96h exposure (96h LC 50) to these toxicants in the aquatic phase. LC 50 values for zinc, phenanthrene, and atrazine respectively were 2.0, 0.89, and 7.58mg/L in R. propinqua and 0.64, 0.75, and 20.8mg/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.
AB - 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 96h exposure (96h LC 50) to these toxicants in the aquatic phase. LC 50 values for zinc, phenanthrene, and atrazine respectively were 2.0, 0.89, and 7.58mg/L in R. propinqua and 0.64, 0.75, and 20.8mg/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.
KW - Copepod
KW - Estuarine
KW - New Zealand
KW - Pollution
KW - Toxicity
UR - http://www.scopus.com/inward/record.url?scp=84860521664&partnerID=8YFLogxK
U2 - 10.1016/j.ecoenv.2012.04.008
DO - 10.1016/j.ecoenv.2012.04.008
M3 - Journal Article
C2 - 22521687
AN - SCOPUS:84860521664
SN - 0147-6513
VL - 80
SP - 363
EP - 371
JO - Ecotoxicology and Environmental Safety
JF - Ecotoxicology and Environmental Safety
ER -
