How small-scale variation in oyster reef patchiness influences predation on bivalves

Macreadie, Peter I.; Geraldi, Nathan R.; Peterson, Charles H.

doi:10.3354/meps09115

Cited by 12 publications

(5 citation statements)

References 39 publications

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“…In the Baffin Bay estuary, such an assessment should take into account other fish species [e.g. , sheepshead Archosargus probatocephalus (Walbaum 1792) (Macreadie et al ., ); cownose rays Rhinoptera bonasus (Mitchill 1815) (Myers et al . , )] that rely on bivalve prey.…”

Section: Discussionmentioning

confidence: 99%

“…Declines in food resources were described as a probable contributor for striped bass Morone saxatilis (Walbaum 1792) exceeding carrying capacity (Uphoff, 2003). In the Baffin Bay estuary, such an assessment should take into account other fish species [e.g.,sheepshead Archosargus probatocephalus (Walbaum 1792) (Macreadie et al, 2011); cownose rays Rhinoptera bonasus (Mitchill 1815) (Myers et al, 2007)] that rely on bivalve prey.…”

Section: )mentioning

confidence: 99%

See 1 more Smart Citation

Dietary composition of black drum Pogonias cromis in a hypersaline estuary reflects water quality and prey availability

Rubio

Ajemian

Stunz

et al. 2018

Journal of Fish Biology

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The Baffin Bay estuary is a hypersaline system in the Gulf of Mexico that supports an important recreational and commercial fishery for black drum Pogonias cromis, a benthic predator. Seasonal measurements of water quality variables, benthic macrofauna densities and biomass, and determination of P. cromis food sources using stomach-content and stable-isotope analyses were carried out to determine how P. cromis food sources change with water quality and how this may affect P. cromis diet. Gut-content analysis indicated P. cromis selectively consumed bivalves Mulinia lateralis and Anomalocardia auberiana. Isotope compositions demonstrated that P. cromis relied on these benthic food resources produced in the Baffin Bay estuary year-round. Biomass and densities of these bivalves were influenced by changes in water quality variables, particularly salinity and dissolved oxygen. Thus, this paper demonstrates the relationship between water quality variables, benthic macrofauna, and their use as food resources by a carnivorous fish species, and emphasizes the need for integrated assessments when studying the effects of water quality on ecosystem function. Holistic approaches such as these can provide important information for management and conservation of fishery resources and can improve predictions of ecosystem response to climate variability.

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Section: Discussionmentioning

confidence: 99%

Section: )mentioning

confidence: 99%

Dietary composition of black drum Pogonias cromis in a hypersaline estuary reflects water quality and prey availability

Rubio

Ajemian

Stunz

et al. 2018

Journal of Fish Biology

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“…The size of the oyster habitat and the distance between patches are commonly found in natural oyster reefs (Fig. S1; [35], [36]). Eight oyster shells each had 7 mussels (resource) attached to them and were haphazardly placed within the oyster habitat.…”

Section: Methodsmentioning

confidence: 99%

Restricting Prey Dispersal Can Overestimate the Importance of Predation in Trophic Cascades

Geraldi

Macreadie

2013

PLoS ONE

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Predators can affect prey populations and, via trophic cascades, predators can indirectly impact resource populations (2 trophic levels below the predator) through consumption of prey (density-mediated indirect effects; DMIEs) and by inducing predator-avoidance behavior in prey (trait-mediated indirect effects; TMIEs). Prey often employ multiple predator-avoidance behaviors, such as dispersal or reduced foraging activity, but estimates of TMIEs are usually on individual behaviors. We assessed direct and indirect predator effects in a mesocosm experiment using a marine food chain consisting of a predator (toadfish – Opsanus tau), prey (mud crab - Panopeus herbstii) and resource (ribbed mussel – Geukensia demissa). We measured dispersal and foraging activity of prey separately by manipulating both the presence and absence of the predator, and whether prey could or could not disperse into a predator-free area. Consumption of prey was 9 times greater when prey could not disperse, probably because mesocosm boundaries increased predator capture success. Although predator presence did not significantly affect the number of crabs that emigrated, the presence of a predator decreased resource consumption by prey, which resulted in fewer resources consumed for each prey that emigrated in the presence of a predator, and reduced the overall TMIE. When prey were unable to disperse, TMIEs on mussel survival were 3 times higher than the DMIEs. When prey were allowed to disperse, the TMIEs on resource survival increased to 11-times the DMIEs. We found that restricting the ability of prey to disperse, or focusing on only one predator-avoidance behavior, may be underestimating TMIEs. Our results indicate that the relative contribution of behavior and consumption in food chain dynamics will depend on which predator-avoidance behaviors are allowed to occur and measured.

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“…Com relação aos predadores, alguns dos organismos aqui reportados podem exercer uma importante função no controle biológico do fouling, como os gastrópodes (Minchin & Duggan, 1989;Roma et al, 2009), ouriços (Ross, 2004;Lodeiros & Garcia 2004;Roma et al, 2009;Ferreira et al, 2017) e algumas espécies de caranguejos (Hidu et al, 1981;Mallet et al, 2009). Entretanto, determinados peixes, gastrópodes, estrelas do mar e caranguejos fazem dos mexilhões um importante recurso alimentar (Hughes & Dunkin, 1984;Figueras, 1990;Freire & González-Gurriaran, 1995;Gosling, 2003;Macreadie et al, 2011), podendo afetar a produtividade das cordas mexilhoneiras. Neste estudo, os caranguejos parecem ser o principal predador dos mexilhões em virtude da grande quantidade de indivíduos observados nos levantamentos.…”

Section: Implicações Ecológicas E Suas Relações Com a Produção De Mexunclassified

Caracterização Da Fauna Vágil Associada Ao Cultivo Suspenso De Mexilhões

Silvestri

Bernadochi

Rodrigues

et al. 2019

ACMAR

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Fazendas de mexilhões oferecem abrigo e alimentação para uma grande variedade de organismos tornando-se um ambiente favorável para o estabelecimento de populações biológicas. Todavia a presença destes organismos no cultivo gera consequências ecológicas e zootécnicas, positivas ou negativas. Nesse estudo foi realizada a caracterização da fauna vágil associada a uma área de produção artesanal de mexilhões Perna perna (L. 1758) no sudeste do Brasil, representando uma importante iniciativa para que se possa estudar os efeitos da presença destes organismos tanto para os cultivos como para o ambiente ao qual eles estão inseridos. Ao longo de um ano foram identificados 41.082 indivíduos vágeis, totalizando 109 diferentes táxons diretamente associados às cordas de mexilhões. A estrutura da comunidade vágil variou ao longo do período de estudo indicando a dominância de anfípodes em todos os períodos analisados. Os resultados deste estudo indicaram que o cultivo suspenso de mexilhões praticado em uma área costeira desempenhou uma função estratégica na atração e no refúgio de espécies vágeis.

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How small-scale variation in oyster reef patchiness influences predation on bivalves

Cited by 12 publications

References 39 publications

Dietary composition of black drum Pogonias cromis in a hypersaline estuary reflects water quality and prey availability

Dietary composition of black drum Pogonias cromis in a hypersaline estuary reflects water quality and prey availability

Restricting Prey Dispersal Can Overestimate the Importance of Predation in Trophic Cascades

Caracterização Da Fauna Vágil Associada Ao Cultivo Suspenso De Mexilhões

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