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Reproduction, seasonality, and copper toxicity in the coastal mysid Praunus flexuosus

Published online by Cambridge University Press:  21 August 2001

E. Garnacho ,
P.A. Tyler  and
L.S. Peck
E. Garnacho
Affiliation:
School of Ocean and Earth Science, Southampton Oceanography Centre, European Way, Southampton, S014 3ZH School of Physical Sciences, University of Kent at Canterbury, Canterbury, CT2 7NZ, UK
P.A. Tyler
Affiliation:
School of Ocean and Earth Science, Southampton Oceanography Centre, European Way, Southampton, S014 3ZH
L.S. Peck
Affiliation:
School of Ocean and Earth Science, Southampton Oceanography Centre, European Way, Southampton, S014 3ZH NERC British Antarctic Survey, Madingley Road, Cambridge, CB3 9EU, UK
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Abstract

The reproductive biology, in response to temperature, season and copper, of a coastal population of opossum shrimps (Crustacea: Mysidacea) was measured. The reproductive pattern for Praunus flexuosus at Keyhaven (west Solent, southern England) has maximum activity in April and maximum reproductive effort in May/June. Increasing temperature decreases incubation time and the reproductive pattern is adapted to compensate for temperature effects. Reproduction was inhibited with copper exposure. Fertilization of the eggs did not occur in any copper treatment (5, 25, 75, 200 μg l−1 copper added). Brooding females exposed to copper suffered a high abortion rate. The inability to produce broods, appears to be a long-term effect, as specimens previously exposed to copper did not produce any broods after two weeks in seawater controls.

Type
Research Article
Information
Journal of the Marine Biological Association of the United Kingdom , Volume 81 , Issue 3 , June 2001 , pp. 433 - 440
Copyright
2001 Marine Biological Association of the United Kingdom

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