Seasonal abundance and vertical distribution of crab larvae in Delaware Bay
Tóm tắt
Larvae of 15 species or genera of crabs were collected and identified during a six month (May 26 to October 28, 1978) study in the mouth of Delaware Bay. Seasonal abundance and vertical distribution of each species were investigated. Most species studied had peak abundance in July and August except forCancer irroratus andOvalipes ocellatus which showed peak occurrence in May and June, respectively. Larvae of species strongly dependent on estuarine habitats, such asUca spp.,Pinnixa chaetopterana, andP. sayana, showed a tendency to congregate in near-bottom waters where net flow of water is landward, thus favoring retention within the estuary. Larvae ofOvalipes ocellatus, Cancer irroratus, andCallinectes sapidus were more common at the surface. This vertical distribution suggests that these larvae are flushed out of the estuary. The mechanisms of recruitment and replenishment of adult populations within the estuary would therefore depend on migration of megalopa and juveniles. *** DIRECT SUPPORT *** A01BY019 00006
Tài liệu tham khảo
Bousfield, E. L. 1955. Ecological control of the occurrence of barnacles in the Miramichi Estuary. National Museum of Canada, Bulletin No. 137, Biological Series No. 46:1–69.
Chamberlain, N. A. 1961. Studies on the larval development ofNeopanope texana sayi (Smith) and other crabs of the family Xanthidae (Brachyura).Chesapeake Bay Inst. Tech. Rep. 22:1–35.
Costlow, J. D., Jr., andC. G. Bookout. 1959. The larval development ofCallinectes sapidus R. reared in the laboratory.Biol. Bull. Marine Biological Laboratory, Woods Hole, Mass. 116:373–396.
Costlow, J. D., Jr., andC. G. Bookout. 1961. The larval stages ofPanopeus herbstii Milne-Edwards in the laboratory.J. Elisha Mitchell Sci. Soc. 77:33–42.
Costlow, J. D., Jr., andC. G. Bookout. 1962. The larval development ofSesarma reticulatum Say reared in the laboratory.Crustaceana 4:281–294.
Costlow, J. D., Jr., andC. G. Bookout. 1966a. The larval development of the crabHexapanopeus angustifrons.Chesapeake Sci. 7:148–156.
Costlow, J. D., Jr., andC. G. Bookout. 1966b. The larval development ofOvalipes ocellatus (Herbst) under laboratory conditions.J. Elisha Mitchell Sci. Soc. 82:160–171.
Deevey, G. 1960. The zooplankton of the surface waters of the Delaware Bay region.Bull. Bingham Oceanogr. Collect. 17:5–53.
Gore, R. H. 1968. The larval development of the commensal crabPolyonyx gibbesi Haig 1956 (Crustacea: Decapoda).Biol. Bull. Marine Biological Laboratory, Woods Hole, Mass. 135:111–129.
Goy, J. W. 1976. Seasonal distribution and retention of some decapod crustacean larvae within the Chesapeake Bay, Virginia. M.S. Thesis, Old Dominion University, Norfolk, Va. 334 p.
Hyman, O. W. 1920. Development ofGelasimus after hatching.J. Morphol. 33:485–525.
Johns, D. M., andW. H. Lang. 1977. Larval development of the spider crab,Libinia emarginata (Majidae).Fish. Bull. 75:831–841.
Maurer, D., L. Watling, R. Lambert, andA. Pembroke. 1978. Seasonal fluctuation of zooplankton populations in lower Delaware Bay.Hydrobiologia 61:149–160.
McEven, G. F., M. W. Johnson, and T. R. Folsom. 1954. A statistical analysis of the performance of the Folsom plankton splitter based upon test observations. Archiv fuer Meteorologie, Geophysik und Bioklimatologie, Serie A: Meteorologie und Geophysik, Vol. 7.
Nicols, R., and P. Keney. 1963. Crab larvae (Callinectes) in plankton collections from cruises of M/VTheodore N. Gill South Atlantic Coast of the United States, 1953–1954. Fish Wildl. Serv. Spec. Sc. Rept. Fish. No. 448. 14 p.
Pinschmidt, W. C. 1963. Distribution of crab larvae in relation to some environmental conditions in the Newport River Estuary, North Carolina. Ph.D. Dissertation, Duke University, Durham, NC. 111 p.
Rees, G. H. 1959. Larval development of the sand crabEmerita talpoida (Say) in the laboratory.Biol. Bull. Marine Biological Laboratory, Woods Hole, Mass. 117:356–370.
Sandifer, P. A. 1972. Morphology and ecology of Chesapeake Bay decapod crustacean larvae. Ph.D. Dissertation, University of Virginia, Charlottesville, 532 p.
Sandifer, P. A. 1973. Distribution and abundance of decapod crustacean larvae in the York River Estuary and adjacent lower Chesapeake Bay, Virginia, 1968–1969.Chesapeake Sci. 14:235–257.
Sandifer, P. A. 1975. The role of pelagic larvae in recruitment to populations of adult decapod crustaceans in the York River Estuary and adjacent lower Chesapeak Bay, Virginia.Estuarine Coastal Mar. Sci. 3:269–279.
Sandifer, P. A., andW. A. Van Engel. 1971. Larval development of the spider crab,Libinia dubia H. Milne Edwards (Brachyura, Majidae, Pisnae) reared in laboratory culture.Chesapeake Sci. 12:18–25.
Sandoz, M., andS. Hopkins. 1947. Early life history of the oyster crab,Pinnotheres ostreum (Say).Biol. Bull. Marine Biological Laboratory, Woods Hole, Mass. 93:250–258.
Sastry, A. N. 1977. The larval development of the rock crab,Cancer irroratus Say, 1817 under laboratory conditions (Decapoda: Brachyura).Crustaceana 32:155–168.
Scheltema, R. 1975. Relationship of larval dispersal, gene-flow and natural selection to geographic variation of benthic invertebrates in estuaries and along coastal regions, p. 373–391.In E. Cronin (ed.), Estuarine Research. Academic Press, New York.
Wheeler, D. E., andC. E. Epifanio. 1978. Behavioral response to hydrostatic pressure in larvae of two species of Xanthid crabs.Mar. Biol. 46:167–174.
Williams, A. B. 1971. A ten-year study of meroplankton in North Carolina estuaries: annual occurrence of some brachyuran development stages.Chesapeake Sci. 12:53–61.