In:
Crustaceana, Brill, Vol. 86, No. 7-8 ( 2013), p. 1007-1024
Abstract:
Benthic organisms are important components of aquatic ecosystems and have been widely used to assess environmental pollution. Being very sensitive to a wide range of toxicants amphipods are often used as test objects in eco-toxicological studies. The aim of this study was to compare toxico-resistance of various Baltic amphipod species to exposure of heavy metals. The acute toxicity (48-h LC 50 and 96-h LC 50 ) of cadmium (CdCl 2 ), copper (CuSO 4 ) and zinc (ZnSO 4 ⋅ 7H 2 O) was detected experimentally, using juveniles and adults of brackish water amphipods, Monoporeia affinis , Bathyporeia pilosa , Gammarus tigrinus , Pontogammarus robustoides and the freshwater amphipod Gammarus pulex as test objects. Amphipods were collected in Latvian territorial waters of the Open Baltic Sea, the Gulf of Riga and in a freshwater body (Kalkugrava canal). Sensitivity of native amphipod species was compared to Hyalella azteca (a species widespread in North America; a strain obtained from the Chesapeake Culture Collection, Hayes, VA, U.S.A.). High sensitivity of all tested amphipod species, except M. affinis , to heavy metals was observed. A two-way ANOVA analysis showed significant differences in toxico-resistance of selected test objects (). The highest toxico-resistance was shown by the brackish water amphipod M. affinis (96-h LC 50 : Cd 5.16 mg/l; Cu 5.68 mg/l; Zn 11.31 mg/l), but the lowest by the freshwater species G. pulex and H. azteca (96-h LC 50 for Cd 0.005 and 0.007 mg/l, accordingly). Cadmium was the most toxic from the tested heavy metals, followed by copper and zinc.
Type of Medium:
Online Resource
ISSN:
0011-216X
,
1568-5403
DOI:
10.1163/15685403-00003208
Language:
Unknown
Publisher:
Brill
Publication Date:
2013
detail.hit.zdb_id:
2019267-8
SSG:
12
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