Results 191 to 200 of about 2,671 (204)

Megalopa bloom of Panopeus lacustris (Decapoda: Panopeidae) on the Amazon Continental Shelf

Regional Studies in Marine Science, 2021
Abstract Two development strategies have been described for crab larvae whose benthic adults live in brackish waters: (i) retention in the parental habitat, and (ii) export to ocean waters. In order to discover which these strategies is adopted by the crab larvae of Panopeus lacustris, samplings of mesozooplankton were performed seasonally by six ...
Francielly Alcântara de Lima, Davi Butturi-Gomes, Jussara Moretto Martinelli-Lemos   +2 more
openaire   +1 more source

Endogenous swimming rhythms in estuarine crab megalopae: implications for flood-tide transport

Marine Biology, 1994
Up-estuary migration of crab larvae to adult habitats is thought to be accomplished by selective tidal transport in which late-stage larvae enter the water column on flood tides and remain on or near the bottom on ebb tides. This study measured endogenous rhythms in swimming by the last larval stage (megalopa) of blue crabs Callinectes sapidus and ...
R. A. Tankersley, R. B. Forward
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Alternative feeding mechanisms in megalopae of the blue crab Callinectes sapidus

Marine Biology, 2002
The apparent mismatch between the energy requirements for planktotrophic growth and prey availability has long been paradoxical. One hypothesis to explain this paradox is that planktotrophic larvae display plasticity in feeding mechanisms in response to variable prey types and concentrations.
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Response of mud crab (Panopeus herbstii) megalopae to cues from adult habitat

Marine Biology, 1996
During the summer of 1995, we investigated the response of mud crab megalopae (Panopeus herbstii Milne-Edwards) to cues associated with adult habitat. Natural rock/shell substratum and the rock-associated seaweed, Fucus vesiculosus L., both induced metamorphosis of competent megalopae; natural sand substratum did not induce metamorphosis.
J. C. Weber, C. E. Epifanio
openaire   +1 more source

Settlement times of blue crab (Callinectes sapidus) megalopae during flood-tide transport

Marine Biology, 2002
Settlement by blue crab (Callinectes sapidus Rathbun) megalopae on artificial settlement substrates was monitored relative to tidal currents throughout ten nights from July to September 1997 in which the phase relationship between tides and the light dark cycle differed.
R. A. Tankersley, J. M. Welch, R. B. Forward   +2 more
openaire   +1 more source

Photoresponses of crab megalopae in offshore and estuarine waters: Implications for transport

Journal of Experimental Marine Biology and Ecology, 1994
Abstract This study tested the hypothesis that fiddler crab ( Uca spp. ) and blue crab [ Callinectes sapidus (Rathbun)] megalopae have separate behaviors in offshore and estuarine waters that are evoked by chemical cues. Past field studies indicate that blue crab megalopae are frequently in the neuston during the day offshore, while fiddler crab ...
Richard B. Forward, Dan Rittschof
openaire   +1 more source

Competency, settling behavior, and postsettlement aggregation by porcelain crab megalopae (Anomura : Porcellanidae)

Journal of Experimental Marine Biology and Ecology, 1991
Gregarious settlement by megalopae of the porcelain crabs Petrolisthes cinctipes (Randall) and P. eriomerus Stimpson was investigated to determine possible means of attraction and postsettlement benefits. Megalopae of P. eriomerus were attracted to conspecific adults confined to chambers that prevented tactile or visual contact, suggesting that ...
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megalopa, n.

2023
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Relative trophic position of Cancer magister megalopae

Crabs in Cold Water Regions: Biology, Management, and Economics, 2002
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Key to Megalopae

2003
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