Seasonal variation of zinc in the barnacle, Balanus balanoides (L.) maintained on a raft in the Menai Strait |
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| Authors: | G Walker P Foster |
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| Institution: | NERC Unit of Marine Invertebrate Biology, Marine Science Laboratories, Menai Bridge, Anglesey, Gwynedd, Wales, Great Britain |
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| Abstract: | A population of the intertidal barnacle, Balanus balanoides (L.) maintained on a raft in the Menai Strait was sampled regularly over a two-year period and pooled fractions analysed for zinc and other trace metals. The seasonal variation of zinc in three fractions (body, other soft tissues and shell) has been followed and related to physiological condition. The body accumulates zinc almost continuously whilst this trace metal accumulates in the ovary only as it develops and is lost in the gametes when these are laid. The newly formed egg-masses therefore may be the more useful sample for indicating zinc pollution. |
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