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A pump‐pot nursery system for rearing juvenile New Zealand dredge oysters Tiostrea lutaria
Author(s) -
Hickman R. W.,
Illingworth J.,
Forman J.,
Kendrick T. H.
Publication year - 1999
Publication title -
aquaculture research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.646
H-Index - 89
eISSN - 1365-2109
pISSN - 1355-557X
DOI - 10.1046/j.1365-2109.1999.00375.x
Subject(s) - oyster , hatchery , biology , fishery , juvenile , mariculture , aquaculture , ecology , fish <actinopterygii>
A wave‐operated nursery system was developed for growing hatchery‐produced spat of the New Zealand dredge oyster Tiostrea lutaria (Hutton) through to a size (≈ 20 mm) suitable for on‐growing in conventional oyster farming equipment. The pump‐pot enabled cultch‐free dredge oyster spat to be transferred from hatchery upwellers at a small size (> 2 mm), thus avoiding the need to supply them with cultured algae to maintain a high growth rate. The wave‐activated pumping action of the pot maintained a sufficient flow of water through the pot to achieve rapid growth of small spat held at high densities.