Effects of juvenile non-indigenous Carcinus maenas on the growth and condition of juvenile Cancer irroratus

Breen, Erin; Meta×as, Anna

doi:10.1016/j.jembe.2009.06.007

Cited by 13 publications

(8 citation statements)

References 48 publications

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“…Lower rates of cannibalism than predation by the European green crab have previously been reported for rock crabs in a long term laboratory experiment (Breen and Metaxas 2009). A previous study conducted on the Canadian coast also documented the presence of rock crabs in gut contents of European green crabs (Elner 1981).…”

Section: Discussionmentioning

confidence: 68%

“…However, as is commonly true for crabs, interactions between rock crabs and European green crabs are size specific. Rock crabs will readily consume smaller European green crabs with positive effects on resulting rock crab growth rates (Breen and Metaxas 2009). Interactions between these European green crabs and Asian shore crabs are highly agonistic, and Asian shore crabs have eliminated or greatly depressed the numbers of European green crabs in many areas (Lohrer and Whitlatch 2002b;Griffen 2014).…”

Section: Discussionmentioning

confidence: 99%

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Potential impacts of invasive crabs on one life history strategy of native rock crabs in the Gulf of Maine

Griffen

Riley

2015

Biol Invasions

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Organismal life history strategies are continually being strained by increasing environmental change, including exposure to invasive species. The rock crab Cancer irroratus is a commercially harvested species in the Northeastern US and Canada where previous studies have reported it uses subtidal habitats as a juvenile and then undergoes a habitat shift into deeper offshore waters to mature and reproduce. We demonstrate that in intertidal habitats of the Gulf of Maine, this species reaches reproductive maturity, and does so at a smaller size than has previously been recognized. Our goal here is to identify potential mechanisms by which the presence of invasive European green crabs (Carcinus maenas) and Asian shore crabs (Hemigrapsus sanguineus) may influence the success of this intertidal life history strategy of rock crabs based on the ecology and reproductive requirements of these young intertidal crabs. We experimentally demonstrate that the reproductive success of small rock crabs in intertidal habitats depends on a carnivorous lifestyle. Further, we demonstrate that juvenile rock crabs are more susceptible to predation by both invasive species than they are to cannibalism. Finally, using a numerical model to calculate lifetime rock crab fecundity, we demonstrate that this intertidal strategy is only beneficial when crabs experience reduced predation risk intertidally relative to in subtidal habitats. Together, our results demonstrate that invasive European green crabs and Asian shore crabs have the potential to greatly reduce the reproductive benefit of intertidal habitat use by young rock crabs.

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Section: Discussionmentioning

confidence: 68%

Section: Discussionmentioning

confidence: 99%

Potential impacts of invasive crabs on one life history strategy of native rock crabs in the Gulf of Maine

Griffen

Riley

2015

Biol Invasions

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“…In contrast, another study determined that rock crabs were being displaced or preyed upon by C. maenas in Newfoundland [278]. Juvenile American lobster, H. americanus, and two species of crabs native to the northwestern Atlantic, the blue crab, Callinectes sapidus, and the lady crab, Ocellatus ovalipes, all consume similar food (bivalves, gastropods, polychaetes and crustaceans) so are assumed to be competitors with C. maenas [99,112,122,298]. In laboratory experiments adult green crabs were able to physically compete with and, in many cases, dominate larger, heavier lobsters [298].…”

Section: Competitorsmentioning

confidence: 99%

Life History and Population Dynamics of Green Crabs (<em>Carcinus maenas</em>)

Young¹,

Elliott²

2019

Preprint

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Carcinus maenas (the “shore crab” or “European green crab”) is a very proficient invader (considered to be one of the world’s 100 worst invaders by the IUCN) due to its phenotypic plasticity, wide temperature and salinity tolerance, and an extensive omnivorous diet. Native to Atlantic Europe, it has established two well‐studied nonindigenous populations in the northwestern Atlantic and northeastern Pacific and less‐studied populations in Australia, Argentina and South Africa. Green crabs are eurythermal and euryhaline as adults, but they are limited to temperate coastlines due to more restrictive temperature requirements for breeding and larval development. They cannot tolerate wave‐swept open shores so are found in wave‐protected sheltered bays, estuaries and harbors. Carcinus maenas has been the subject of numerous papers, with over 1000 published in the past decade. This review provides an up‐to‐date account of the current published information on the life history and population dynamics of this very important species, including genetic differentiation, habitat preferences, physical parameter tolerances, reproduction and larval development, sizes of crabs, densities of populations, sex ratios, ecosystem dynamics and ecological impacts in the various established global populations of green crabs.

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“…In Prince Edward Island green crabs and rock crabs seemed to avoid each other on mussel clumps, suggesting that the two species could coexist [224]. In the Bras d'Or Lakes, Nova Scotia, rock crabs consumed large numbers of juvenile green crabs [225]. In contrast, another study determined that rock crabs were being displaced or preyed upon by C. maenas in Newfoundland [204].…”

Section: Competitorsmentioning

confidence: 99%

PopulationDynamics of Green Crabs (Carcinus maenas) -- A Review

Young¹,

Elliott²

2018

Preprint

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Carcinus maenas (the "shore crab" or "European green crab") is a very proficient invader (considered to be one of the world's 100 worst invaders by the IUCN) due to its phenotypic plasticity, wide temperature and salinity tolerance, and an extensive omnivorous diet. Native to Atlantic Europe, it has established two well-studied nonindigenous populations in the northwestern Atlantic and northeastern Pacific and lessstudied populations in Australia, Argentina and South Africa. Green crabs are eurythermal and euryhaline as adults, but they are limited to temperate coastlines due to more restrictive temperature requirements for breeding and larval development. They cannot tolerate wave-swept open shores so are found in wave-protected sheltered bays, estuaries and harbors. C. maenas has been the subject of numerous papers, with over 1000 published in the past decade. This literature review provides an up-to-date account of the current published information on the population dynamics of this very important species, including habitat preferences, physical parameter tolerances, reproduction and larval development, sizes of crabs, densities of populations, sex ratios, ecosystem dynamics and ecological impacts in the various established global populations of green crabs.

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Effects of juvenile non-indigenous Carcinus maenas on the growth and condition of juvenile Cancer irroratus

Cited by 13 publications

References 48 publications

Potential impacts of invasive crabs on one life history strategy of native rock crabs in the Gulf of Maine

Potential impacts of invasive crabs on one life history strategy of native rock crabs in the Gulf of Maine

Life History and Population Dynamics of Green Crabs (<em>Carcinus maenas</em>)

PopulationDynamics of Green Crabs (Carcinus maenas) -- A Review

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