Die Schlei, ein Modell für die Verbreitung der StrandkrabbeCarcinus maenas

Dries, M.; Adelung, D.

doi:10.1007/bf02289835

Cited by 16 publications

(17 citation statements)

References 4 publications

(6 reference statements)

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“…However, the bucket trap data indicate that a significant proportion of the juvenile shore crabs participates in the tidal migration and stays in the subtidal waters during the preceding winter. The suppressed feeding of shore crabs in water temperatures below 7 ~ (Ropes, 1968) and their reduced activity during the winter months (Dries & Adelung, 1982) may decrease the predation pressure on juveniles, thereby allowing the coexistence of juvenile and .adult shore crabs in subtidal waters (Fig. 6).…”

Section: August / ~Cz~ Maymentioning

confidence: 99%

Recruitment of shore crabsCarcinus maenas on tidal flats: Mussel clumps as an important refuge for juveniles

Thiel

Dernedde

1994

Helgolander Meeresunters

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During the late summer and early fall, juvenile shore crabs (Carcinus maenas L.) occurred in high abundances in mussel clumps scattered on tidal flats of the Wadden Sea. Abundances were much lower on bare tidal fiats without mussel clumps and decreased substantially from July to November, whereas numbers in mussel clumps remained high. Large crabs left the tidal flats in early fall, whereas juveniles undertook tidal migrations only in the late fall. In March very few shore crabs were found in the intertidal area. The size of juvenile shore crabs living between mussels did not increase significantly during fall. On the bare tidal flats surrounding the mussels, a size increase was observed. Mussel beds and mussel clumps serve as a spatial refuge for the early benthic phases of juvenile shore crabs. Between mussels they can hide effectively from their epibenthic predators. Juvenile shore crabs do not leave the intertidal area and the mussel habitats before their major predators have left the area. Mussel clumps scattered over the tidal flats may be a critical refuge for juvenile shore crabs settling on tidal fiats. Intensified efforts in mussel culturing in the European Wadden Sea during recent decades may have caused an increased abundance of mussel clumps on tidal fiats, thus enhancing habitat availability for some mussel-chimp inhabitants.

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Section: August / ~Cz~ Maymentioning

confidence: 99%

Recruitment of shore crabsCarcinus maenas on tidal flats: Mussel clumps as an important refuge for juveniles

Thiel

Dernedde

1994

Helgolander Meeresunters

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“…This species has a wide temperature (0-33°C) and salinity (4-54) tolerance (Broekhuysen 1937;Naylor 1962;Crothers 1967;Rasmussen 1973;Dries and Adelung 1982;Behrens Yamada 2001), which varies between different life history stages, increasing with age. C. maenas occupy a variety of substrates (mud, sand, rock, eelgrass) and depths ranging from high tide to 6 m, although there have been records up to 60 m (Crothers 1968).…”

Section: Introductionmentioning

confidence: 99%

A Comparison of Predation Rates by Non-indigenous and Indigenous Crabs (Juvenile Carcinus maenas, Juvenile Cancer irroratus, and Adult Dyspanopeus sayi) in Laboratory and Field Experiments

Breen

Meta×as

2008

Estuaries and Coasts

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Mean daily consumption rates on Mytilus spp. were compared among juveniles of the non-indigenous Carcinus maenas, juveniles of the indigenous Cancer irroratus, and adults of the indigenous Dyspanopeus sayi between June and August 2005 to assess the relative impact of juvenile C. maenas in field (Benacadie Channel (45°54′ N, 60°53′ E), Bras d'Or Lakes, Nova Scotia, Canada) and laboratory experiments. This study examined: (1) whether consumption rates in a field setting vary among species; (2) the effect of laboratory and field settings on species-specific consumption rates, and whether rates vary between settings for each species; and (3) the effects of temperature and salinity on the consumption rates of these species. In field experiments, there was no significant difference in consumption among C. maenas, C. irroratus, and D. sayi (0.100±0.067, 0.450±0.189, and 0.800±0.423 mussels crab −1 d −1 , respectively). However, both C. maenas and C. irroratus consumed two to four times more prey in the laboratory than in the field. D. sayi prey consumption was also greater (although not significant) in the laboratory than in the field. In the laboratory, consumption rate was greater for C. irroratus in salinities of 26 than 17 (2.75 and 1.69-1.81 mussels crab −1 d −1 , respectively), and in 17°C than 13°C (1.10-1.21 and 0.56-0.64 mussels crab −1 d −1 , respectively) for C. maenas. In all experiments, consumption rates of juvenile C. maenas were lower than or similar to those of the juvenile and adult indigenous species, suggesting that the potential predatory impact of juvenile C.maenas on Mytilus spp. may not be as significant as that of the adults of this non-indigenous species.

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“…The lower temperature limit for feeding is generally considered to be 7°C [29], although Ropes [65] concludes that at temperatures as low as 7°C crabs from Massachusetts do not suppress feeding but activity and presumably feeding probably cease at some temperature below 7°C. In most populations, adult crabs migrate offshore when the water temperature drops below 8°C in winter and then return as the water warms in the spring [1,82,87,[103][104][105][106][107][108][109][110]. Audet et al [111] report that C. maenas in Prince Edward Island waters may feed at temperatures below 6°C but only in the fall, not in the spring, and Eriksson et al [63] indicates that feeding may occur below 7°C but almost ceases below 3-4°C for crabs in Sweden.…”

Section: Temperaturementioning

confidence: 99%

“…A linear regression analyzing male maximum carapace width and the latitude of each sample site in the native range found that latitude explained 61% of the variation in CW [23]. Within the native range in Europe, crabs generally do not exceed 86 mm but a single male with a carapace width of 100 mm was collected in western Sweden [105] and a 92 mm male crab from Denmark was reported by Eriksson & Edlund [62]. The smallest maximum CW male within a population (71 mm) is from Portugal, nearest to the southern limit of the range [120].…”

Section: Adult Maximum Sizementioning

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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Die Schlei, ein Modell für die Verbreitung der StrandkrabbeCarcinus maenas

Cited by 16 publications

References 4 publications

Recruitment of shore crabsCarcinus maenas on tidal flats: Mussel clumps as an important refuge for juveniles

Recruitment of shore crabsCarcinus maenas on tidal flats: Mussel clumps as an important refuge for juveniles

A Comparison of Predation Rates by Non-indigenous and Indigenous Crabs (Juvenile Carcinus maenas, Juvenile Cancer irroratus, and Adult Dyspanopeus sayi) in Laboratory and Field Experiments

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

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