Record Display for the EPA National Library Catalog

RECORD NUMBER: 22 OF 29

OLS Field Name OLS Field Data
Main Title Larval Development of the Spider Crab, 'Libinia emerginata' (Majidae).
Author Johns, D. Michael ; Lang, William H. ;
CORP Author Environmental Protection Agency, Narragansett, RI.
Year Published 1977
Report Number EPA/600/J-77/161;
Stock Number PB-299 249
Additional Subjects Crabs ; Larvae ; Development ; South Carolina ; Rhode Island ; Morphology ; Plankton ; Diet ; Survival ; Cultures(Biology) ; Temperature ; Salinity ; Reprints ; Spider crab ; Libinia emarginata ; Artemia
Holdings
Library Call Number Additional Info Location Last
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Status
NTIS  PB-299 249 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 06/23/1988
Collation 13p
Abstract
Larval development of the spider crab, Libinia emarginata, consists of two zoeal stages and megalopa. Laboratory-reared larvae (South Carolina and Rhode Island) are described and compared with planktonic larvae from Narragansett Bay, RI. No significant variations in morphology were found between laboratory-cultured larvae and 'wild' larvae from plankton catches: first stage zoea from South Carolina were smaller than Rhode Island specimens. Using Artemia diets, the best percentage survival in culture was found to be 20C for Rhode Island larvae and 25C for South Carolina larvae. Zoeal stages show little difference from larvae of L, dubia; however, the megalopae of the two species can be differentiated by the number of protuberances on the cardiac region of the carapace.