Eight-year Record of Hemigrapsus sanguineus (Asian Shore Crab) Invasion in Western Long Island Sound Estuary

Kraemer, George P.; Sellberg, Monica; Gordon, A. N.; Main, Jeff L.

doi:10.1656/1092-6194(2007)14[207:erohsa]2.0.co;2

Cited by 88 publications

(72 citation statements)

References 28 publications

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“…5a). These results and the paucity of large, eYcient crab predators in the upper reaches of northwest Atlantic estuaries Elner 1979, Williams 1984;deRivera et al 2005, Kraemer et al 2007) suggest that lower predation pressure did not select for species-speciWc or general behavioral responses to crabs within the source population of invasive whelks. Alternatively, the anti-predator strategy selected for in this source population of invasive whelks may be to continuously feed in order to grow quickly into a size refuge from predation.…”

Section: Discussionmentioning

confidence: 91%

“…But the Atlantic oyster drill (Urosalpinx cinerea) that invaded Tomales Bay in the early twentieth century originated from a northwest Atlantic estuary (Long Island Sound, USA; J. Carlton, personal communication). In this source population of invasive whelks, the anti-predator traits of avoiding crabs may be less prevalent because of the following: this region's cancrid crabs of adult sizes (i.e., Cancer irroratus > 40-50 mm carapace width) occur subtidally and oVshore (Kraemer et al 2007;Williams 1984), this region's European green crabs are ineYcient predators of adult-sized whelks (Hughes and Elner 1979), and eYcient predation by blue crabs (Callinectes sapidus) is functionally restricted to central and southern estuaries of the Atlantic coast (deRivera et al 2005). If the native whelk's antipredator traits consist of recognizing and avoiding crab cues, then Tomales Bay's segregation of intermediate consumers may cause trait-mediated cascades to occur in some areas (those with native whelks, 22.98 mm § 4.7) but not in others (those with invasive whelks, 23.79 mm § 2.9).…”

Section: Methodsmentioning

confidence: 99%

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Invasive species cause large-scale loss of native California oyster habitat by disrupting trophic cascades

et al. 2009

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Although invasive species often resemble their native counterparts, diVerences in their foraging and antipredator strategies may disrupt native food webs. In a California estuary, we showed that regions dominated by native crabs and native whelks have low mortality of native oysters (the basal prey), while regions dominated by invasive crabs and invasive whelks have high oyster mortality and are consequently losing a biologically diverse habitat.Using Weld experiments, we demonstrated that the invasive whelk's distribution is causally related to a large-scale pattern of oyster mortality. To determine whether predatorprey interactions between crabs (top predators) and whelks (intermediate consumers) indirectly control the pattern of oyster mortality, we manipulated the presence and invasion status of the intermediate and top trophic levels in laboratory mesocosms. Our results show that native crabs indirectly maintain a portion of the estuary's oyster habitat by both consuming native whelks (density-mediated trophic cascade) and altering their foraging behavior (trait-mediated trophic cascade). In contrast, invasive whelks are naive to crab predators and fail to avoid them, thereby inhibiting trait-mediated cascades and their invasion into areas with native crabs. Similarly, when native crabs are replaced with invasive crabs, the naive foraging strategy and smaller size of invasive crabs prevents them from eYciently consuming adult whelks, thereby inhibiting strong density-mediated cascades. Thus, while trophic cascades allow native crabs, whelks, and oysters to locally co-exist, the replacement of native crabs and whelks by functionally similar invasive species results in severe depletion of native oysters. As 123 coastal systems become increasingly invaded, the mismatch of evolutionarily based strategies among predators and prey may lead to further losses of critical habitat that support marine biodiversity and ecosystem function.

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Section: Discussionmentioning

confidence: 91%

Section: Methodsmentioning

confidence: 99%

Invasive species cause large-scale loss of native California oyster habitat by disrupting trophic cascades

et al. 2009

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“…First, how do abundance, distribution and recruitment change with time after invasion (Brown and Kodric-Brown 1977;Hanski 1991Hanski , 1998Hanski , 1999Stachowicz et al 2002;Clark and Johnston 2009)? Previous studies have focused on the establishment phase of invasions, whereas there have been few studies concerning abundance, distribution, and recruitment during the early phase of invasions in marine habitats (Burlakova et al 2006;Lucy 2006;Kraemer et al 2007). Second, does the rate of local extinction decrease with time as the result of a temporal increase of recruitment or population size?…”

Section: Introductionmentioning

confidence: 99%

Early phase of the invasion of Balanus glandula along the coast of Eastern Hokkaido: changes in abundance, distribution, and recruitment

et al. 2013

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To understand the patterns and processes associated with the population dynamics of Balanus glandula during the early phase of invasion along the Pacific coast of eastern Hokkaido, population surveys were conducted from 2002 to 2011 at five shores, each consisting of five paired plots (scraped recruitment plot and unscraped establishment plot), along 49 km of coastline located 144 km east of the eastern front of the invasion of this species in 2000. Larval recruitment was first detected in 2004, but the establishment of a population was not observed until 2 years later at the westernmost shore of the study area. Occurrence increased from non-native barnacle present in 4 % of plots in 2006 to 100 % in 2011, but mean coverage remained low (\5 %) in 2011. Most local population coverage fluctuated without indicating clear temporal trends, but coverage in one plot showed a consistent pattern of rapid increase. Local extinctions occurred, but rates of local extinction decreased with time as larval recruitment increased. Lag times between recruitment and establishment occurred for 64 % of the paired plots and ranged from 1 to 4 years. Lag times decreased after 5 years, when larval recruitment increased. These findings suggest that the intensity of larval recruitment determined invasion dynamics during this early phase of the invasion, and the monitoring of recruitment is therefore essential for early detection of invasions by sessile marine organisms and prediction of their range expansion.

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“…H. sanguineus was first observed in Long Island Sound, USA, in 1988(McDermott 1998 and has since increased its range southwards to North Carolina and northwards into southern Maine (Delaney et al 2008), monopolizing the majority of rocky intertidal habitats within this region (Kraemer et al 2007). In much of its new range, H. sanguineus has displaced C. maenas as the most abundant rocky intertidal crab (Ahl & Moss 1999, Lohrer & Whitlatch 2002, Griffen & Byers 2009), occurring at twice the average density (and up to 10 times the density) of C. maenas in the intertidal zone (Griffen & Byers 2009).…”

Section: Introductionmentioning

confidence: 99%

“…On the whole, the introduction of H. sanguineus has resulted in a substantial shift in the most common New England intertidal shorecrab over the last couple of decades (e.g. Jensen et al 2002, Lohrer & Whitlatch 2002, Tyrrell et al 2006, Kraemer et al 2007, Griffen & Byers 2009). …”

Section: Introductionmentioning

confidence: 99%

Differential escape from parasites by two competing introduced crabs

Blakeslee

Keogh²,

Byers³

et al. 2009

Mar. Ecol. Prog. Ser.

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Although introduced species often interact with one another in their novel communities, the role of parasites in these interactions remains less clear. We examined parasite richness and prevalence in 2 shorecrab species with different invasion histories and residency times in an introduced region where their distributions overlap broadly. On the northeastern coast of the USA, the Asian shorecrab Hemigrapsus sanguineus was discovered 20 yr ago, while the European green crab Carcinus maenas has been established for over 200 yr. We used literature and field surveys to evaluate parasitism in both crabs in their native and introduced ranges. We found only 1 parasite species infecting H. sanguineus on the US East Coast compared to 6 species in its native range, while C. maenas was host to 3 parasite species on the East Coast compared to 10 in its native range. The prevalence of parasite infection was also lower for both crabs in the introduced range compared to their native ranges; however, the difference was almost twice as much for H. sanguineus as for C. maenas. There are several explanations that could contribute to C. maenas' greater parasite diversity than that of H. sanguineus on the US East Coast, including differences in susceptibility, time since introduction, manner of introduction (vector), distance from native range, taxonomic isolation, and the potential for parasite identification bias. Our study underscores not just that non-native species lose parasites upon introduction, but that they may do so differentially, with ramifications for their direct interactions and with potential community-level influences.

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Eight-year Record of Hemigrapsus sanguineus (Asian Shore Crab) Invasion in Western Long Island Sound Estuary

Cited by 88 publications

References 28 publications

Invasive species cause large-scale loss of native California oyster habitat by disrupting trophic cascades

Invasive species cause large-scale loss of native California oyster habitat by disrupting trophic cascades

Early phase of the invasion of Balanus glandula along the coast of Eastern Hokkaido: changes in abundance, distribution, and recruitment

Differential escape from parasites by two competing introduced crabs

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