SALINITY TOLERANCE OF THE CATARINA SCALLOP ARGOPECTEN-VENTRICOSUS-CIRCULARIS (SOWERBY-II, 1842)

Authors
SINGNORETBRAILOVSKY G MAEDAMARTINEZ AN REYNOSOGRANADOS T SOTOGALERA E MONSALVOSPENCER P VALLEMEZA G
Citation
G. Singnoretbrailovsky et al., SALINITY TOLERANCE OF THE CATARINA SCALLOP ARGOPECTEN-VENTRICOSUS-CIRCULARIS (SOWERBY-II, 1842), Journal of shellfish research, 15(3), 1996, pp. 623-626
Citations number
33
Categorie Soggetti
Fisheries,"Marine & Freshwater Biology
Journal title
Journal of shellfish research → ACNP
ISSN journal
07308000
Volume
15
Issue
3
Year of publication
1996
Pages
623 - 626
Database
ISI
SICI code
0730-8000(1996)15:3<623:STOTCS>2.0.ZU;2-L
Abstract
We investigated the salinity tolerance range of the adult catarina sca llop (Argopecten ventricosus-circularis) by exposing them to increased and decreased salinity in steps of 5 ppt, each step lasting 24 h, fro m normal salinity (37 ppt) up to 57 ppt and down to 17 ppt at a consta nt 28 degrees C. Our results indicate that A. ventricosus-circularis i s a perfect osmoconformer. Hemolymph osmolality followed the same tren d as the changing external media throughout the salinity levels tested . Survival records indicate that the salinity tolerance is restricted to 27-47 ppt.