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Showing 1 to 20 of 20 for “"Carcinus maenas"”.
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Impacts of the introduced crabs, Carcinus maenas and Hemigrapsus sanguineus, in northern New England
… are presently found in northern New England, Carcinus maenas, which has been in this region for over 100 years, and Hemigrapsus sanguineus which was first reported in New Hampshire in 1998. Carcinus maenas is a generalized predator and its introduction has had negative effects on several …
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Influence du crabe vert (carcinus maenas) sur le comportement du crabe commun (cancer irroratus)
… pertes économiques importantes. Le crabe vert (Carcinus maenas) représente un bel exemple d'espèce invasive. Ce crabe, maintenant retrouvé à travers le monde, est tolérant à une vaste gamme de paramètres environnementaux et peut modifier les communautés qu'il envahi. C'est un prédateur important …
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The Proteomic Response of the Carcinus maenas Y-organ Over the Course of the Molt Cycle
… Y-organs (YO) from the common shore crab <em>Carcinus maenas</em> at molt stages B, C<sub>1-3</sub>, C<sub>4</sub>, and D<sub>0</sub> to assess how changes in protein abundances might underline the unique physiology of each of these stages. We found that changes in protein abundance were most …
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Interactions between two invasive crab predators, Carcinus maenas and Hemigrapsus sanguineus, and consequences for the native community
… invaded communities. The European green crab Carcinus maenas is an aggressive predator that was introduced to the east coast of North America in the mid 1800s and often has detrimental impacts on prey communities. A newer invasive predator, the Asian shore crab Hemigrapsus sanguineus, was …
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The tide is high: Tidally-associated genetic markers of an invasive coastal crab in the Northwest Atlantic
… the native range, and the globally-invasive crab Carcinus maenas (L.) provides a good model for examining the extent of the relationship between environment, genetics and behavior in invasive populations. To accomplish this, I sampled Carcinus maenas adults and juveniles from an array of sites …
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Suivi du crabe vert (Carcinus maenas) par détection de l'ADN environnemental: validation de l'approche et détection dans la région de Miramichi au Nouveau-Brunswick
… écologique contre l’avancée du crabe vert (Carcinus maenas) vers le Nouveau-Brunswick (N-B). En effet, la littérature documente une barrière potentielle à l’embouchure du sud de la rivière, où un tourbillon marin a été observé, ce qui représenterait un obstacle pour la dispersion larvaire de …
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Étude histologique de l'organe Y chez les femelles de crabe des neiges Chionoecetes opilio
… opilio a le même emplacement que celui de Carcinus maenas décrit par Echalier (1959). L’organe Y, des femelles morphologiquement matures observé semble subir des modifications structurales qui se résument en une diminution de la taille des noyaux, une diminution de l’épaisseur des cordons …
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The population ecology and feeding biology of rocky shore crabs on the Cape Peninsula
… (De Haan) and the invasive European shore-crab Carcinus maenas (L.). The possible impact of C. maenas upon the South African intertidal and local crabs in particular is also assessed.
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Biogeographic Patterns, Predator Identity, and Chemical Signals Influence the Occurrence and Magnitude of Non-lethal Predator Effects
… (Stimpson, 1859), and the invasive green crab Carcinus maenas (Linnaeus, 1758). Nucella use chemical cues emanating from their most common predator (Carcinus maenas) and crushed conspecifics to evaluate predation risk. Nucella from different habitats experience different levels of predation …
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Variation in parasitism of intertidal invertebrates, with a focus on trematodes on the southwest of Ireland
… Hediste diversicolor, and green shore crab Carcinus maenas were surveyed in three estuaries of differing enrichment levels. The increased abundance of trematodes was recorded in tandem with higher concentrations of nutrient parameters and larger bird communities. The potential of statutory …
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Testing the use of port biological baseline surveys to support relevant marine alien species management applications in Africa
… was also considered. The European Green Crab Carcinus maenas, presently found in isolated bays of South Africa was assessed with respect to the validation of management concerns related to the likelihood for further spread and impact, especially to the valuable aquaculture sector.
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Winter flounder Pseudopleuronectes americanus stock enhancement in New Hampshire: Developing optimal release strategies
… between winter flounder and the green crab, Carcinus maenas, was examined. The number of flounder killed per day was significantly higher (31%) in winter flounder <20 mm compared to all other larger fish size classes (4--8% killed/day). Additionally, these fish were attacked at a faster rate …
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The effects of Didemnum vexillum overgrowth on Mytilus edulis biology and ecology
… of overgrowth of the ascidian on predation by Carcinus maenas. Finally, mussel primary settlement was measured from summer 2008 through summer 2009 and compared to historical data. This settlement was also correlated with the abundance of neighboring D. vexillum.</p><p>Overgrowth had a negative …
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Functional implications of the neuromuscular transform in decapod crustacean locomotion
… was conducted on two brachyuran species Carcinus maenas and Libinia emarginata, the former an amphibious sideways walker and the latter an aquatic forward walker. Comparisons within and between the species showed that muscles that provide thrust in the animal’s most common walking …
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Coastal sources of estuarine inflow
… invasive species, the European green crab (Carcinus maenas), which was observed in the eastern Salish Sea for the first time in 2016. Green crab spawns were simulated using particle tracking experiments in an ocean model of the eastern Pacific Ocean to investigate the likelihoods that larvae …
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Breaking the MF curse: the regulatory role of the Methyl farnesoate – MEKRE93 pathway in crustacean molting
… identified in the European green shore crab (Carcinus maenas) and the blackback land crab (Gecarcinus lateralis) YO transcriptomes, including the MF/JH receptor Methoprene tolerant (Met), the zinc finger transcription factor Krüppel homolog 1 (Kr-h1), Ecdysone response gene 93 (E93), Steroid …
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Dynamic lighting and its impact on the behaviour of marine invertebrates
… cuttlefish *Sepia officinalis*, the shore crab *Carcinus maenas*, and the brown shrimp *Crangon crangon*. In Chapter 2, I investigated whether caustics impaired the hunting success of cuttlefish. By exposing cuttlefish to live prey in different caustic conditions, I found that cuttlefish …
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Understanding and minimizing the impacts of host-pathogen-environment interactions in the Pacific oyster Crassostrea gigas
… in the spring and summer 2015. Green shore crabs Carcinus maenas and edible cockles Cerastoderma edule were collected at the oyster trestles and 500 m on the high shore at two culture sites, and were screened for OsHV-1 µVar by polymerase chain reaction (PCR), quantitative PCR (qPCR) and in situ …
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Infections of the Norway lobster, Nephrops norvegicus (L.) by dinoflagellate and ciliate parasites
… of tissues from N. norvegicus and from the crab Carcinus maenas. The level of genetic similarity between nine isolates of Hematodinium originating from several species of Crustacea from the Uk was examined. PCR was used to amplify and sequence the 3' of the small sub-unit (SSU) and the first …
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Uptake of manganese into the exoskeleton of the swimming crab Liocarcinus depurator (L.) in relation to biomonitoring and biosorption
The swimming crab Liocarcinus depurator (L.) is a common member of the benthic fauna in Scottish waters, and is often caught as bycatch from the common lobster fishery grounds. This study aims to employ the species in relation to the biomonitoring potential for Mn in the Scottish inshore waters and …