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Variations between winter and summer in the toxicity of copper to a population of the mysid Praunus flexuosus

Variations between winter and summer in the toxicity of copper to a population of the mysid Praunus flexuosus
Variations between winter and summer in the toxicity of copper to a population of the mysid Praunus flexuosus
Copper toxicity was tested on a coastal population of the mysid Praunus flexuosus (Müller) from Southampton Water (Southern England) under winter and summer conditions. Ten-day toxicity tests were performed on the different life-cycle stages (female, male and juvenile) present in winter (December/February) and summer (August). The individuals were in winter or summer physiological condition and were exposed to seawater to which 0, 5, 25, 75 and 200 wg lm1 copper was added. There were significantly different copper toxicity effects in winter and summer. In winter mortality was h 1% at all levels of copper exposure, while in summer identical exposure levels caused mortality of up to 93%. The 96 h LC50 was 30.8 wg lm1 copper added in the summer. In winter, the low mortality prevented calculation of LC50. There were differences in responses to copper between the life-cycle stages. Juveniles were more sensitive than adults, and were severely affected within 24 h. Females were more affected than males at lower doses and shorter exposure times.
MYSIDACEA, MYSIDS, COPPER, TOXICITY, SEASONAL VARIATIONS
0025-3162
631-636
Garnacho, E.
5b2b51c9-6f6a-4f2d-a52c-09bd46043891
Peck, L.S.
99c7a947-59b4-492b-b783-59fb34afd5dc
Tyler, P.A.
d1965388-38cc-4c1d-9217-d59dba4dd7f8
Garnacho, E.
5b2b51c9-6f6a-4f2d-a52c-09bd46043891
Peck, L.S.
99c7a947-59b4-492b-b783-59fb34afd5dc
Tyler, P.A.
d1965388-38cc-4c1d-9217-d59dba4dd7f8

Garnacho, E., Peck, L.S. and Tyler, P.A. (2000) Variations between winter and summer in the toxicity of copper to a population of the mysid Praunus flexuosus. Marine Biology, 137 (4), 631-636. (doi:10.1007/s002270000383).

Record type: Article

Abstract

Copper toxicity was tested on a coastal population of the mysid Praunus flexuosus (Müller) from Southampton Water (Southern England) under winter and summer conditions. Ten-day toxicity tests were performed on the different life-cycle stages (female, male and juvenile) present in winter (December/February) and summer (August). The individuals were in winter or summer physiological condition and were exposed to seawater to which 0, 5, 25, 75 and 200 wg lm1 copper was added. There were significantly different copper toxicity effects in winter and summer. In winter mortality was h 1% at all levels of copper exposure, while in summer identical exposure levels caused mortality of up to 93%. The 96 h LC50 was 30.8 wg lm1 copper added in the summer. In winter, the low mortality prevented calculation of LC50. There were differences in responses to copper between the life-cycle stages. Juveniles were more sensitive than adults, and were severely affected within 24 h. Females were more affected than males at lower doses and shorter exposure times.

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More information

Published date: 2000
Keywords: MYSIDACEA, MYSIDS, COPPER, TOXICITY, SEASONAL VARIATIONS

Identifiers

Local EPrints ID: 8947
URI: https://eprints.soton.ac.uk/id/eprint/8947
ISSN: 0025-3162
PURE UUID: f1200538-8241-4b94-80df-2fa45753bf54

Catalogue record

Date deposited: 10 Sep 2004
Last modified: 17 Jul 2017 17:12

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