Structured habitat provides a refuge from blue crab, Callinectes sapidus, predation for the bay scallop, Argopecten irradians concentricus (Say 1822)

Cordero, Ana L. Hernández; Seitz, Rochelle D.

doi:10.1016/j.jembe.2014.06.012

Cited by 18 publications

(16 citation statements)

References 78 publications

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“…This result is consistent with a welldeveloped body of evidence that suggests that increasing habitat complexity reduces prey mortality (e.g., Fernández et al 1993;Dittel et al 1996;Fernández 1999;Langellotto and Denno 2006;Stoner et al 2010;Hill and Weissburg 2013;Hernández Cordero and Seitz 2014). The most common mechanism to explain the influence of habitat complexity is a decrease in the rate of predator-prey encounters.…”

Section: The Influence Of Habitatsupporting

confidence: 87%

“…The green crab is a voracious predator that feeds on an array of small bivalves and small crustaceans, including younger life stages of its own species (Baeta et al 2006). Previous research indicates that native prey survival when facing a predator like the green crab will be higher in habitats that are structurally more complex (Crowder and Cooper 1982;Fernández et al 1993;Fernández 1999;Hill and Weissburg 2013;Hernández Cordero and Seitz 2014). However, it does not elucidate how habitat will affect green crab interspecific and intraspecific prey preference and predation rates.…”

Section: Introductionmentioning

confidence: 99%

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Hide and seek: habitat-mediated interactions between European green crabs and native mud crabs in Atlantic Canada

et al. 2016

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Section: The Influence Of Habitatsupporting

confidence: 87%

Section: Introductionmentioning

confidence: 99%

Hide and seek: habitat-mediated interactions between European green crabs and native mud crabs in Atlantic Canada

et al. 2016

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“…These results are in agreement with a growing body of evidence that suggests that increasing habitat complexity decreases prey mortality ( e.g . Fernandez et al., ; Dittel, Epifanio, & Natunewicz, ; Fernández, ; Langellotto & Denno, ; Stoner, Ottmar, & Haines, ; Hill & Weissburg, ; Hernández Cordero & Seitz, ). The most likely mechanism to explain the influence of habitat complexity is a decrease in the rate of predator–prey encounters.…”

Section: Discussionmentioning

confidence: 99%

“…Hill & Weissburg, ). Shells of oysters and mussels were expected to reflect increased habitat complexity in comparison to less structured sandy sediments (see Hernández Cordero & Seitz, ; Gehrels et al., 2016). However, our mimics were set on sandy sediments, which were an integral part of the habitats as well and may have removed some of the distinctiveness among habitats.…”

Section: Discussionmentioning

confidence: 99%

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Effects of habitat complexity on cannibalism rates in European green crabs (Carcinus maenas Linnaeus, 1758)

et al. 2017

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The habitat in which predator–prey interactions take place may have a profound influence on the outcome of those interactions. Cannibalism is an intriguing form of predation whereby foraging by predators may contribute to the regulation of their own populations.This is particularly interesting in the case of invasive species, like the widely distributed European green crab (Carcinus maenas). This study explores how habitat complexity influences cannibalism rates in green crab populations of Prince Edward Island, Atlantic Canada. Both laboratory and field experiments were conducted to measure feeding rates by individual adult green crabs on a standard number of smaller conspecifics. In the laboratory, experimental treatments mimicked unstructured to increasingly structured habitats: water, sandy bottom, oyster shells, mussel shells, oyster shells with sandy bottom and mussel shells with sandy bottom. In those trials, adult green crabs consumed several times more juveniles on unstructured habitats than on the most structured ones, with a gradual decrease in predation rates across increasingly complex habitats. Field inclusion experiments used the same approach and were conducted in sandy bottoms, sandy bottoms with a layer of oyster shells and sandy bottoms with a layer of mussel shells. These trials showed similar patterns of decreasing feeding rates across increasingly complex habitats, but differences among treatments were not significant. These results support the idea that complex habitats have the potential to mediate predator–prey interactions, including adult–juvenile cannibalism in green crabs.

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Predation on planted and wild bay scallops (Argopecten irradians irradians) by busyconine whelks: studies of behavior incorporating acoustic telemetry

et al. 2022

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Quantifying predator–prey interactions and gaining insights into predator behavior are crucial for optimizing restoration strategies. However, such knowledge is often lacking for marine invertebrates. We examined potential impacts of predation by channeled Busycotypus canaliculatus and knobbed whelks Busycon carica on natural and planted populations of bay scallops in the Peconic Bays, New York, through laboratory and field investigations. In lab experiments, mean predation rates exhibited by small channeled whelks were low: 0.06 and 0.005 scallops d−1 for adult and juvenile scallops, respectively. Predation rates of small knobbed whelks on juvenile scallops were 22 × higher. Eighty-six percent (86%) of scallops consumed by channeled whelks had undamaged shells, while 73% eaten by knobbed whelks had notched ventral margins. In field plots where scallop densities were manipulated via removals/plantings, whelks consumed ~ 2% of ~ 19,100 planted juveniles, whereas crabs and presumably finfish consumed > 40% overall. Acoustic telemetry revealed that tagged channeled whelks moved shorter distances and spent more time in plots planted with scallops versus those without scallops. Whelks spent more time in low versus high-density plots, but consumed far more scallops in the latter. In trials without scallops, whelk movement rates were 5 × higher, presumably due to increased exploratory behavior. Overall, whelks were most active during crepuscular hours and during periods of increasing wind speeds. Our results, combined with population abundance data, suggest that whelks (especially B. carica) are drawn to planted bay scallop aggregations, but probably contribute to relatively low overall mortality in the context of restoration efforts.

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Structured habitat provides a refuge from blue crab, Callinectes sapidus, predation for the bay scallop, Argopecten irradians concentricus (Say 1822)

Cited by 18 publications

References 78 publications

Hide and seek: habitat-mediated interactions between European green crabs and native mud crabs in Atlantic Canada

Hide and seek: habitat-mediated interactions between European green crabs and native mud crabs in Atlantic Canada

Effects of habitat complexity on cannibalism rates in European green crabs (Carcinus maenas Linnaeus, 1758)

Predation on planted and wild bay scallops (Argopecten irradians irradians) by busyconine whelks: studies of behavior incorporating acoustic telemetry

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