Results 31 to 40 of about 1,206 (164)

Mechanisms regulating estuarine ingress of blue crab Callinectes sapidus megalopae [PDF]

open access: yesMarine Ecology Progress Series, 2009
Mechanisms of shoreward transport and estuarine ingress in blue crab Callinectes sapidus megalopae have been difficult to infer from time series of nightly settlement on passive hog's hair collectors. We attempted to investigate the hypothesis that separating mechanisms of shoreward transport and estuarine ingress might enable identification of ...
MB Ogburn, H Diaz, RB Forward
openaire   +1 more source

Description of the later zoeal stages and megalopa of charybdis truncata (Fabricius, 1798) (Crustacea: Portunidae)

open access: yes, 1983
Charybdis truncata reared in the laboratory passed through 6 zoeal stages in 20 days (at 26°C and in water of 35% salinity) before metamorphosis to the megalopa.
Greenwood J.G., Fielder D.R.
core   +1 more source

Planes on a Snake? On the Identities of Crab Larvae Rafting on Sea Snakes

open access: yesEcology and Evolution, Volume 16, Issue 6, June 2026.
We sequenced COI and 16S rRNA genes from 106 crab megalopae found rafting on the pelagic sea snake Hydrophis platurus to test whether they were the obligate rafting species Planes minutus. Instead, all larvae belonged to three inter‐ to supratidal grapsid crabs—Pachygrapsus socius, Goniopsis pulchra, and Grapsus grapsus—revealing no evidence of Planes.
Soma Elefánti   +3 more
wiley   +1 more source

Larvae and Megalopa of Argis dentata (Crustacea: Decapoda) from Ungava Bay

open access: yes, 1965
Stage I and II larvae and the megalopa of Argis dentata Rathbun are described from plankton taken by the Calanus Expedition in Ungava Bay during July–August, 1947–1950.
H. J. Squires
core   +1 more source

Metamorphosis and survival rate of mud crab (Scylla olivacea) larvae fed with enriched live feed with Moringa oleifera leaves

open access: yesFisheries and Aquatic Sciences
The objective of this research was to evaluate live-feed effect enriched with Moringa oleifera Leaves upon the rate of metamorphosis and survival from zoea to megalopa of Scylla olivacea larva.
Zainal Usman   +4 more
doaj   +1 more source

The morphology of the foregut of larvae and postlarva of Sesarma curacaoense De Man, 1892: a species with facultative lecithotrophy during larval development A morfologia do estômago de larvas e pós-larvas de Sesarma curacaoense De Man, 1892: uma espécie com desenvolvimento larval lecitotrófico facultativo

open access: yesActa Amazonica, 2006
Previous study on the resistance of larvae of Sesarma curacaoense submitted to starvation has revealed a facultative lecithotrophy during zoeal stages, but megalopa and first juvenile stages are exclusively feeding stages. In the present study, the gross
Marlon Aguiar Melo   +2 more
doaj   +1 more source

Diversity of hippoidean crabs - considering ontogeny, quantifiable morphology, and phenotypic plasticity

open access: yesNauplius, 2021
Representatives of Hippoidea, often called sand crabs or mole crabs, are an ingroup of Anomala. These marine crustaceans inhabit the tropical and subtropical coasts of the world, yet some also appear in temperate climates.
Florian Braig   +3 more
doaj   +1 more source

Feeding Ecology of Gould's Arrow Squid Nototodarus gouldi (Cephalopoda: Ommastrephidae) in Aotearoa New Zealand Waters

open access: yesNew Zealand Journal of Zoology, Volume 53, Issue 2, June 2026.
Squids are important components of marine ecosystems because of their role as both predator and prey. Across the Tasman Sea, Gould's arrow squid (Nototodarus gouldi) is a commercially targeted ommastrephid squid that supports an economically important fishery.
Lucia Hu   +4 more
wiley   +1 more source

Larval development of Cyrtograpsus affinis (Dana) (Decapoda, Brachyura, Varunidae) from Río de la Plata estuary, reared in the laboratory

open access: yesScientia Marina, 2000
The complete larval development of the crab Cyrtograpsus affinis (Brachyura, Varunidae) was obtained by culture in the laboratory. Five zoeal stages, the megalopa and the first crab are described and illustrated. Larval development from hatching to first
Eduardo D. Spivak, José A. Cuesta
doaj   +1 more source

Genes Versus Environment: Body Size Variation Among Recruitment Cohorts of Dungeness Crab

open access: yesMolecular Ecology, Volume 35, Issue 11, June 2026.
ABSTRACT Understanding the drivers of phenotypic variation is key to disentangling the evolutionary and environmental forces that shape patterns of trait variation within and among populations. In Dungeness crab, settlement‐stage megalopae exhibit striking seasonal variation in body size, with early season cohorts consistently larger than later ones ...
James L. Dimond   +6 more
wiley   +1 more source

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