Depth of settlement of two mussel species on suspended collectors in Marlborough Sounds,New Zealand (Note) |
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| Authors: | J L Meredyth‐Young R J Jenkins |
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| Institution: | 1. Fisheries Management Division , Ministry of Agriculture and Fisheries , Private Bag, Nelson, New Zealand;2. Fishing Industry Board , P.O. Box 9232, Wellington, New Zealand |
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| Abstract: | The preferred depth of settlement and settlement period of two species of mussel spat were monitored at Yncyca Bay (NZMS1 S15 220460) and Wet Inlet (NZMS1 S16 265432) in the Marlborough Sounds on collectors suspended in 0–4 m of water between 20 October 1975 and 4 April 1976. Peak settlement of Mytilus edulis aoteanus was between 20 October 1975 and 4 January 1976, and decreased with increasing depth. Peak settlement of Perna canaliculus was between 16 February 1976 and 12 April 1976, and showed no preferred depth of settlement. Capture of wild stocks of Mytilus edulis aoteanus and Perna canaliculus spat for use in aquaculture has become more reliable through accurate forecasting of peak settlement periods, and knowledge of preferred depth of settlement of the two species. Preferred depth of settlement of spat may affect the shore zonation of mussels. |
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| Keywords: | Lake Rerewhakaaitu Phosphate‐phosphorus Phosphorus removal Microflora Radioactive tracers |
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