Results 131 to 140 of about 1,206 (164)

Transport of Scylla serrata megalopae at various densities and durations

Aquaculture, 2000
Abstract The optimal conditions for transport of Scylla serrata megalopae were determined. Loading densities of 50, 100 and 150 ind l −1 of hatchery-reared megalopae were studied over a 6-h simulated transport, including shaking. Survival immediately after transport was significantly higher at 50 ind l −1 (99.3±1.6%) (mean± x %) than at 100 (93.0±
Quinito, Emilia T., Parado-Estepa, Fe D.
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Surface Swarms of Swimming Crab Megalopae At Curaçao (Decapoda, Brachyura)

Crustaceana, 1982
[Vor der Kuste von Curacao traten im September 1970 und Oktober 1980 riesige, monospezifische Schwarme von Megalopa-Larven auf. Die Larven liesen sich als zur Unter-familie Portuninae gehorig identifizieren. Sie unterscheiden sich aber von allen bisher beschriebenen Megalopa-Larven und konnen deshalb nicht genauer bestimmt werden. Mogliche Mechanismen,
A.L. Rice, I. Kristensen
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The megalopa stage in brachyuran crabs. The Podotremata Guinot

Journal of Natural History, 1981
Summary The available information on the megalopa stage in podotrematous crabs, that is the Dromioidea, Homoloidea, Raninoidea and Tymoloidea, is reviewed. The morphology of the megalopas tends to support the relationships between these groups indicated by the zoeal stages but does not provide any additional evidence on the unresolved problem of ...
openaire   +1 more source

Effect of Starvation During Late Megalopa Stage of Mithraculus Forceps (Brachyura: Majidae) on Larval Duration, Synchronism of Metamorphosis, Survival to Juvenile, and Newly Metamorphosed Juvenile Size [PDF]

Aquaculture, 2008
Larval resistance to temporary starvation is considered a key factor for successful development in the wild. Subjecting larvae to temporary starvation during early and/or late development is occasionally used in larviculture to reduce production costs.
Joana Figueiredo, Gil Penha-Lopes, Luís Narciso   +2 more
exaly   +2 more sources

Respiratory metabolism of Pagurus bernhardus (Decapoda: Paguridae) megalopa

Marine Biology, 1984
Individual oxygen consumption was determined during the megalopa development of Pagurus bernhardus at 18°C in 1983. The maximum observed range was from 0.101 to 0.343 μl O2 h-1 ind-1. Individual respiration rate dropped by about 33% during the first two days and continued to remain at that level throughout the moult cycle.
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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

An Integrated Transcriptomic and Proteomic Approach Uncovers the Molecular Mechanisms of Hypoosmotic Adaptation in Scylla Paramamosain Megalopa

International Journal of Molecular Sciences
Salinity is a pivotal environmental factor that governs crustacean survival and development through its regulatory effects on key physiological processes, including osmoregulation and metabolic homeostasis.
Keyi Ma, Lingbo Ma, Chunyan Ma
exaly   +2 more sources

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
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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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The Megalopa of Charybdis Feriata (Linnaeus) With Additions To the Zoeal Larvae Descriptions (Decapoda, Portunidae)

Crustaceana, 1984
Motoh & Villaluz (1976) and Terada (1979) described the six zoeal stages of Charybdis feriata (as C. cruciata (Herbst)) from the Philippines and Japan respec tively. The megalopa was not described in either paper. Larvae reared by Motoh & Villaluz (1976) suffered heavy mortality during the fifth and sixth lar val stages and the zoeae apparently had ...
Fielder D.R., Greenwood J.G., Campbell G.   +2 more
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