INEXPENSIVE AND PORTABLE SAMPLER FOR COLLECTING EGGS OF FREE-SPAWNINGMARINE-INVERTEBRATES UNDERWATER

Authors
STYAN CA
Citation
Ca. Styan, INEXPENSIVE AND PORTABLE SAMPLER FOR COLLECTING EGGS OF FREE-SPAWNINGMARINE-INVERTEBRATES UNDERWATER, Marine ecology. Progress series, 150(1-3), 1997, pp. 293-296
Citations number
21
Categorie Soggetti
Marine & Freshwater Biology",Ecology
Journal title
Marine ecology. Progress series → ACNP
ISSN journal
01718630
Volume
150
Issue
1-3
Year of publication
1997
Pages
293 - 296
Database
ISI
SICI code
0171-8630(1997)150:1-3<293:IAPSFC>2.0.ZU;2-8
Abstract
A simple device is described that can be used to collect the eggs of f ree-spawning marine invertebrates and that is cheap, portable and fool -proof. The air-displacement sampler was used to collect eggs from fem ale sea urchins, Heliocidaris erythrogramma, downstream from experimen tally induced spawning males. Average fertilisation rates of eggs decr eased downstream and were 87, 48, 40, 17 and 7% at 10, 100, 200, 400 a nd 1000 cm respectively.