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Article: Factors influencing recruitment of hatchery reared pearl oyster (Pinctada Mazatlanica; Hanley 1856) spat.(Abstract)
- Article from:
- Journal of Shellfish Research
- Article date:
- January 1, 2005
- Author:
CopyrightCOPYRIGHT 2005 National Shellfisheries Association, Inc. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)
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ABSTRACT We evaluated experimental collection of Pinctada mazatlanica spat on substrates of different textures and colors placed at different depths within settlement tanks. When larvae reached the pediveliger stage (day 25), black-colored spat collectors ("envelope" type) composed of the following materials were offered as settlement substrates: onion bag, mosquito net, fishing net, and 63% shade-cloth. Spat collectors measured 30 x 30 cm and were composed of an outer bag and inner substrate made of the same material. The influence of the color of spat collector material on recruitment was investigated using a second type of spat collector composed of onion bags as the ...