Network analysis and inter-ecosystem comparison of two intertidal mudflat food webs (Brouage Mudflat and Aiguillon Cove, SW France)

Leguerrier, Delphine; Degré, Delphine; Niquil, Nathalie

doi:10.1016/j.ecss.2007.04.014

Cited by 33 publications

(21 citation statements)

References 64 publications

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“…This fluidity among guilds exists because ecological interactions among species are intensified at certain periods, with the less competitive species or species more susceptible to predation being excluded or replaced by species with greater adaptability to environmental pressures (ARAÚJO et al, 2006). Although ontogenetic changes were not specifically examined in the present work, some authors have asserted that certain species may segregate into different guilds during growth (LEGUERRIERA et al, 2007, ABDURAHIMAN et al, 2010.…”

Section: Discussionmentioning

confidence: 64%

Trophic relationships among fish assemblages in a mudflat within Brazilian marine protected area

et al. 2015

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Pessanha et al.: Trophic relationships of fish assemblages 135 Trophic relationships among fish assemblages in a mudflat within Brazilian marine protected areaThe present study on the temporal variations in diet and the trophic guilds of dominant fish species in a tidal mudflat, during the dry and rainy seasons. We aimed at classifying the diet composition of 17 species in the Mamanguape river estuary, northeastern Brazil, identifying the dominant food components and evaluating the effects of seasonality on the guild organization. Diet varied little between species and seasons; during the rainy season, the diets seemed to be more heterogeneous. According to the importance of prey in the diets, 5 primary feeding guilds were identified: (1) Detritivore, (2) Zooplanktivore, (3) Zoobenthivore-epifaune, (4) Zoobenthivore-infaune, and (5) Piscivore. Most fishes fed on a diverse range of food items but relied heavily on the zooplankton preys. Several fish species showed a tendency for a specialised diet, with almost all species showing some degree of opportunistic feeding. A high degree of diet overlap was found among some species; however, the presence of exploitative competition could not be determined. AbstrAct

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Section: Discussionmentioning

confidence: 64%

Trophic relationships among fish assemblages in a mudflat within Brazilian marine protected area

et al. 2015

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“…This fluidity among guilds exists because ecological interactions among species are intensified at certain periods, with the less competitive species or species more susceptible to predation being excluded or replaced by species with greater adaptability to environmental pressures (ARAÚJO et al, 2006). Although ontogenetic changes were not specifically examined in the present study, some authors have asserted that certain species may segregate into different guilds during growth (LEGUERRIERA et al, 2007;ABDURAHIMAN et al, 2010). Autochthonous prey items, represented primarily by zooplankton and, in particular, by copepods, are of fundamental importance for juveniles.…”

Section: Discussionmentioning

confidence: 68%

Trophic relationships among fish assemblages on a mudflat within a Brazilian Marine protected area

et al. 2015

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Trophic relationships among fish assemblages on a mudflat within a Brazilian Marine protected areaThe present study deals with the temporal variations in diet and the trophic guilds of dominant fish species on a tidal mudflat during the dry and rainy seasons. We sought to classify the diet composition of 17 species in the Mamanguape river estuary, northeastern Brazil, identifying the dominant food components and evaluating the effects of seasonality on the guild organization. Diets varied little between species and seasons, though they seemed to be more heterogeneous during the rainy season. Five primary feeding guilds were identified, in accordance with the importance of prey in the diets: (1) Detritivore, (2) Zooplanktivore, (3) Zoobenthivore-epifaune, (4) Zoobenthivore-infaune, and (5) Piscivore. Most fishes fed on a diverse range of food items but relied heavily on zooplankton prey. Several fish species showed a tendency to a specialised diet, with almost all species showing some degree of opportunistic feeding. A high degree of diet overlap was found among some species; however, the presence of exploitative competition could not be determined. AbstrActZooplanctívora, (3) Zoobentívora-epifauna, (4) Zoobentívora-infauna, e (5) Piscivora. A maioria dos peixes predou uma variada gama de itens alimentares, mas fortemente baseados em presas do zooplâncton. Alguns peixes apresentaram tendência para uma dieta especializada, com quase todas as espécies mostrando algum grau de alimentação oportunista. Um alto grau de sobreposição de dieta foi encontrado entre as espécies; no entanto, a ocorrência de competição por exploração não foi observada. resumoDescritores: Dieta, Ecologia alimentar, Comunidades de peixes, Sobreposição alimentar, Estuário.

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“…This export was mainly composed of first, the migration of grazing fish during the warm season, and second, of cultivated bivalves during the cold season [86].…”

Section: Applications Of Exergy To Specific Problems Of Aquatic Ecologymentioning

confidence: 99%

Exergy as a Tool for Ecosystem Health Assessment

Silow

Mokryy

2010

Entropy

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Abstract:Exergy is demonstrated to be a useful measurable parameter reflecting the state of the ecosystem, and allowing estimation of the severity of its anthropogenous damage. Exergy is shown to have advantages such as good theoretical basis in thermodynamics, close relation to information theory, rather high correlation with others ecosystem goal functions and relative ease of computation. Nowadays exergy is often used in ecological assessment. This paper reviews the application of exergy in ecology in the fields of ecological modeling and natural ecosystem monitoring. Special attention is paid to the use of exergy for aquatic ecosystem studies, particularly, assessment of the lake Baikal ecosystem state.

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Network analysis and inter-ecosystem comparison of two intertidal mudflat food webs (Brouage Mudflat and Aiguillon Cove, SW France)

Cited by 33 publications

References 64 publications

Trophic relationships among fish assemblages in a mudflat within Brazilian marine protected area

Trophic relationships among fish assemblages in a mudflat within Brazilian marine protected area

Trophic relationships among fish assemblages on a mudflat within a Brazilian Marine protected area

Exergy as a Tool for Ecosystem Health Assessment

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