Epibenthic amphipod abundance and predation efficiency of the pink shrimp Farfantepenaeus duorarum (Burkenroad, 1939) in habitats with different physical complexity in a tropical estuarine system

Corona, Adriana; Soto, Luís A.; Sánchez, Alberto J.

doi:10.1016/s0022-0981(00)00236-7

Cited by 43 publications

(34 citation statements)

References 40 publications

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“…Our results were similar in that prey density had a strong influence on prey survival, but in our study system predator consumption rates decreased rather than increased with prey density. In contrast to our study and to Gotceitas & Colgan (1990), consumption of epibenthic amphipods by the predatory pink shrimp Farfantepenaeus duorarum in Gulf of Mexico seagrass beds decreased with habitat structural complexity, but did not vary with amphipod density (Corona et al 2000).…”

Section: Prey Survival Prey Density and Structural Complexitycontrasting

confidence: 99%

Variable prey density modifies the effects of seagrass habitat structure on predator−prey interactions

Lannin¹,

Hovel²

2011

Mar. Ecol. Prog. Ser.

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In seagrass habitats, high structural complexity often enhances prey survival by reducing predator-prey encounter rates and predator foraging success. However, faunal density and biomass typically increase with seagrass structural complexity, such that variation in prey or predator density may contribute to or alter relationships between structural complexity and prey survival. We determined whether variability in prey density alters relationships between seagrass structural complexity and (1) prey survival, (2) predator-prey encounter rates, and (3) behavioral components of predator-prey interactions in eelgrass Zostera marina habitat. Using transplanted eelgrass in laboratory mesocosms, we compared trends in meso predator (juvenile giant kelpfish Heterostichus rostratus) feeding success and behavior, and predator avoidance behavior by prey (grass shrimp Hippolyte californiensis) between experiments in which we (1) held prey density constant while increasing eelgrass shoot density, or (2) increased prey density while increasing eelgrass shoot density. We found that increasing prey density (but not eelgrass density) enhanced proportional prey survival and decreased the probability that mesopredators would attack prey, whereas increasing eelgrass density (but not prey density) decreased the likelihood that prey would attempt to escape from mesopredator attack. Predator-prey encounter rates were influenced both by prey density and eelgrass density, whereas mesopredator attack success was not influenced by either eelgrass density or prey density. Our results suggest that variable prey density modifies relationships between habitat structure and prey survival through a variety of behavioral mechanisms, and that factors that covary with habitat structure, such as prey density, may alter the effects of habitat structure on predation.

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Section: Prey Survival Prey Density and Structural Complexitycontrasting

confidence: 99%

Variable prey density modifies the effects of seagrass habitat structure on predator−prey interactions

Lannin¹,

Hovel²

2011

Mar. Ecol. Prog. Ser.

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“…For example, whereas it was originally thought that the distributions of three species of the fiddler crab Uca, were due to food availability, Ringold (1979) demonstrated that this was due to the root mat density of Spartina. Amphipod population growth has been shown to be a complex mixture of refuge against predation and food between seagrasses and macroalgae habitats (Corona et al 2000). However, in vegetated areas, blue crab growth has been demonstrated to be predominantly controlled by food availability rather than protection from predation (Seitz et al 2005).…”

Section: Discussionmentioning

confidence: 99%

Comparing biodiversity effects among ecosystem engineers of contrasting strength: macrofauna diversity in Zostera noltii and Spartina anglica vegetations

2008

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Whereas it is well known that ecosystem engineers can have a large influence on biodiversity, underlying mechanisms are still not fully clear. We try to enhance insight by comparing biodiversity effects of two neighboring intertidal, clonal, ecosystem engineering plant species that modify the physical environmental parameters in a similar way, but with a different magnitude. Macrobenthic assemblages were compared between meadows of the seagrass Zostera noltii, small patches (B0.5 m Ø) and large areas ()5 m Ø) of the emergent halophyte Spartina anglica and the surrounding bare tidal mudflat (control). Multivariate analyses revealed that the mudflat benthic assemblage and Zostera meadow assemblage showed highest similarities, whereas the Spartina marsh assemblage showed the highest dissimilarity with these two areas. Whereas the descriptive nature of our study limits interpretation of the data, some clear patterns were observed. For all vegetated areas, species diversity was lower compared to the unvegetated mudflat, and we observed a strong shift from endo-towards epibenthic species, suggesting that increased above-ground habitat complexity may be a main driving process in our system. As there were no clear patterns related to feeding types, food availability/productivity appeared to be of minor importance in structuring the benthic assemblages. Nevertheless, animals were in general smaller in vegetated areas. Patchiness had a distinct positive effect on biodiversity.

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“…Compared to areas that lack vegetation, submerged aquatics, including Vallisneria, harbor dense populations of infaunal and epibenthic organisms that are potential prey for nekton predators (Menzie 1980;Lewis and Stoner 1983;Rozas and Odum 1987a;Lubbers et al 1990;Corona et al 2000). Potential prey associated with estuarine Vallisneria beds include small fishes, gammarid amphipods, hydrobiid snails, ephemeropterans, and chironomid larvae (VanderKooy et al 2000;Jordan 2002).…”

Section: Discussionmentioning

confidence: 99%

Nekton use ofVallisneria americana Michx. (Wild celery) beds and adjacent habitats in Coastal Louisiana

Rozas

Minello

2006

Estuaries and Coasts: J ERF

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We compared nekton use of Vallisneria americana Michx. (submerged aquatic vegetation, SAV) with marsh shoreline vegetation and subtidal nonvegetated bottom (SNB) using a 1-m 2 drop sampler in the oligohaline area of Barataria Bay, Louisiana. Mean densities of most abundant species were significantly different among six habitat types. Harris mud crab Rhithropanopeus harrisii, Ohio shrimp Macrobrachium ohione, blue crab Callinectes sapidus, daggerblade grass shrimp Palaemonetes pugio, white shrimp Litopenaeus setiferus (fall), rainwater killifish Lucania parva, naked goby Gobiosoma bosc, code goby Gobiosoma robustum (fall), speckled worm eel Myrophis punctatus (fall), and gulf pipefish Syngnathus scovelli (spring), were much more abundant, and species richness also was greater, in Vallisneria than over SNB. Vallisneria supported densities of most species that were similar to those in marsh vegetation, although naked goby and gulf pipefish were more abundant in Vallisneria, and speckled worm eel and saltmarsh topminnow Fundulus jenkinsi were more abundant in marsh. Within the Vallisneria bed, densities of Harris mud crab, rainwater killifish, and speckled worm eel were higher at sites near the marsh (SAV Inside Edge) than at sites more distant from the marsh (SAV Outside Edge), and Ohio shrimp (fall) densities were higher in the interior of the bed than along the edges. The mean size of blue crab was larger in marsh than Vallisneria and larger in Vallisneria than SNB. White shrimp did not differ in size among habitat types. Vallisneria beds may provide an important nursery habitat for young blue crab and white shrimp that use oligohaline estuarine areas. These SAV beds can provide an alternative structural habitat to emergent vegetation during periods of low water, because Vallisneria occurs in the subtidal and generally persists throughout the year on the Gulf coast. Species whose young thrive in low-salinity waters and also depend on structure would benefit most from Vallisneria habitat in estuaries.

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Epibenthic amphipod abundance and predation efficiency of the pink shrimp Farfantepenaeus duorarum (Burkenroad, 1939) in habitats with different physical complexity in a tropical estuarine system

Cited by 43 publications

References 40 publications

Variable prey density modifies the effects of seagrass habitat structure on predator−prey interactions

Variable prey density modifies the effects of seagrass habitat structure on predator−prey interactions

Comparing biodiversity effects among ecosystem engineers of contrasting strength: macrofauna diversity in Zostera noltii and Spartina anglica vegetations

Nekton use ofVallisneria americana Michx. (Wild celery) beds and adjacent habitats in Coastal Louisiana

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