Factors affecting the occurrence and structure of fish assemblages in isolated wetlands of the upper coastal plain, U.S.A.

Snodgrass, Joel W.; Bryan, A. Lawrence; Lide, Robert F.; Smith, Gordon M

doi:10.1139/f95-200

Cited by 103 publications

(73 citation statements)

References 21 publications

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“…Cyprinids, which are supposed to use these flooded grasslands as refuge and feeding areas, were mainly present near connections with permanent areas. SNODGRASS et al (1996) found similar results in isolated wetlands, stating that in severely perturbed habitats, fish assemblage structure depends more on colonization rates than on biotic interactions or size and complexity of habitats. Nevertheless, as shown by HOHAUSOVA, COPP and JANKOVSKY (2003), floodplain fish species are able to change their location relative to the main channel between night and day.…”

Section: The Functional Role Of Temporarily Flooded Grasslandssupporting

confidence: 58%

“…COPP and PENAZ, 1988;POIZAT and CRIVELLI, 1997). These ecological functions are rather well documented for marginal habitats and tidal freshwater marshes or salt marshes (WEINSTEIN, 1979;ROZAS and ODUM, 1987;MC IVOR and ODUM, 1988;SCHLOSSER, 1995), but only a few papers concern seasonally flooded marshes (SNODGRASS et al, 1996;POIZAT and CRIVELLI, 1997;BABER et al, 2002).…”

Section: Introductionmentioning

confidence: 99%

“…Moreover, during the dry season, as the water level decreases, high mortality rates may occur for fish trapped in isolated water bodies (KUSHLAN, 1976a, b;CAPONE and KUSHLAN, 1991). Therefore, the degree of connection between temporary and permanent habitats determines the accessibility, the functions and the efficiency of these habitats for fish (SCHLOSSER, 1982;SNODGRASS et al, 1996;POIZAT and CRIVELLI, 1997).…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Fish Community Structure in Temporary Lowland Flooded Grasslands

Carpentier

Paillisson

Feunteun

et al. 2004

Bull. Fr. Pêche Piscic.

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In the context of a clear-cutting experiment of sedge areas on seasonally flooded grasslands, we described the fish community structure and the relationships between its spatial organisation and some environmental variables in early spring in 2000. A confinement gradient related to an increase in macrophyte density and determined by the nearest distance from permanent waters seemed to be a key factor in structuring the fish community in the flooded grasslands. Along this gradient, Cyprinids (essentially 0+) dominated near permanent water bodies (95% in abundance) but were substituted further by more tolerant species (Anguilla anguilla and Lepomis gibbosus) and mainly Ameiurus melas (age > 1, 40% in abundance). Although most species (10/13) present in the main permanent channels have been found in flooded grasslands, the efficiency of these grasslands as fish habitat was low compared to other similar sites from literature. We concluded on the importance of a confinement gradient and the water regime, isolating grasslands during summer and responsible of the scarce presence of fish.Key words: fish assemblages, temporarily flooded grasslands, colonization, confinement gradient, multivariate analyses, electrofishing. STRUCTURE DE LA COMMUNAUTÉ PISCICOLE DANS DES PRAIRIES INONDABLES DE PLAINE RÉSUMÉDans le cadre d'une campagne de gyrobroyage de cariçaies au sein de prairies temporairement inondées, nous décrivons la structure de la communauté piscicole et les relations entre son organisation spatiale et certaines variables environnementales au début du printemps de l'année 2000. Un gradient de fermeture du milieu lié à une augmentation de la densité de macrophytes et déterminé par la distance la plus courte aux zones aquatiques permanentes semble être prépondérant quant à la structuration de la communauté piscicole dans les prairies inondables. Les Cyprinidés (essentiellement des 0 +) sont majoritaires aux entrées des prairies (95 % en abondance) puis remplacés par des espèces plus tolérantes (Anguilla anguilla et Lepomis gibbosus), et plus particulièrement par Ameiurus melas (40 % en abondance, âge > 1) à mesure que le gradient de fermeture s'intensifie. Bien que la plupart des espèces (10/13) présentes dans Article available at

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Section: The Functional Role Of Temporarily Flooded Grasslandssupporting

confidence: 58%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Fish Community Structure in Temporary Lowland Flooded Grasslands

Carpentier

Paillisson

Feunteun

et al. 2004

Bull. Fr. Pêche Piscic.

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“…Wetlands connected to other landscape elements via persistent surface flow paths provide a different blend of storage and water quality services than wetlands connected episodically or only via the subsurface (33,34). Likewise, varying hydrologic connectivity impacts organism dispersal and thus community composition (35), biodiversity (36,37), and metapopulation viability (38,39). Human activities that decrease (e.g., dams/levees, land cover change) or increase (e.g., canals/ditches, human-aided dispersal) wetland connectivity affect functions in individual wetlands and, by extension and combination, functions at the landscape scale.…”

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confidence: 99%

Do geographically isolated wetlands influence landscape functions?

Cohen

Creed

Alexander

et al. 2016

Proc. Natl. Acad. Sci. U.S.A.

342

334

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Geographically isolated wetlands (GIWs), those surrounded by uplands, exchange materials, energy, and organisms with other elements in hydrological and habitat networks, contributing to landscape functions, such as flow generation, nutrient and sediment retention, and biodiversity support. GIWs constitute most of the wetlands in many North American landscapes, provide a disproportionately large fraction of wetland edges where many functions are enhanced, and form complexes with other water bodies to create spatial and temporal heterogeneity in the timing, flow paths, and magnitude of network connectivity. These attributes signal a critical role for GIWs in sustaining a portfolio of landscape functions, but legal protections remain weak despite preferential loss from many landscapes. GIWs lack persistent surface water connections, but this condition does not imply the absence of hydrological, biogeochemical, and biological exchanges with nearby and downstream waters. Although hydrological and biogeochemical connectivity is often episodic or slow (e.g., via groundwater), hydrologic continuity and limited evaporative solute enrichment suggest both flow generation and solute and sediment retention. Similarly, whereas biological connectivity usually requires overland dispersal, numerous organisms, including many rare or threatened species, use both GIWs and downstream waters at different times or life stages, suggesting that GIWs are critical elements of landscape habitat mosaics. Indeed, weaker hydrologic connectivity with downstream waters and constrained biological connectivity with other landscape elements are precisely what enhances some GIW functions and enables others. Based on analysis of wetland geography and synthesis of wetland functions, we argue that sustaining landscape functions requires conserving the entire continuum of wetland connectivity, including GIWs.connectivity | navigable waters | significant nexus Understanding connectivity-patterns of matter, energy, and organism exchanges among landscape elements and across scales-is a challenge that unites the fields of ecology and hydrology (1). Connectivity enables dispersal of organisms and flows of water between landscape elements at multiple spatial and temporal scales

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“…Refuges for fish are one of the factors helping to mitigate the severity of the effects of dry periods (DeAngelis et al, 1997(DeAngelis et al, , 2010Magoulick, Kobza, 2003;Kobza et al, 2004;Magalhaes et al, 2007). However, population control may be more complex at these pools during dry periods due to isolation and crowding (Snodgrass et al, 1996;Chick et al, 2004). For example, fish must tolerate oxygen and nutrient depletion, high susceptibility to predation and diseases, and intra and inter-specific competition (De Angelis et al, 1997;Turner et al, 1999;Loftus, Eklund, 1994;Taylor et al, 2001;Trexler et al, 2001;Gawlik, 2002;Kobza et al, 2004;Ruetz et al, 2005).…”

Section: Discussionmentioning

confidence: 99%

Fish population responses to hydrological variation in a seasonal wetland in southeast México

2017

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Hydrological variation differently affects fish species. In the present study, the response of local populations of 13 fish local species to hydrological variation in a tropical wetland was evaluated. The objectives were to analyze the abundance response of fish species with distinct life history strategies and to assess the role of hydrological variation on fish population patterns. We found that opportunistic strategists were favored by high hydrological variation in drought periods, the equilibrium strategists were related to stable habitats, and periodic strategists were regulated by floods and temperature. However, the life history strategies identified for some species in this study do not correspond to the classification reported in other studies. Our results highlight the importance to study the abundance responses of species at local and regional scales to identify variations in life-history strategies, which can reflect local adaptations of species to hydrological changes, this is useful in order to understand and predict the responses of fish populations to the local environment.Key words: Dry season, Fish resilience, Life history strategies, Rainy season, Sian Ka´an.La variación hidrológica afecta de manera diferencial a las especies de peces. En el presente estudio, se evaluó la respuesta de las poblaciones locales de 13 especies de peces considerando la variación hídrica en un humedal tropical. Los objetivos fueron analizar la respuesta de las abundancias de las especies de peces con diferentes estrategias de historia de vida e identificar la importancia de la variación hídrica en los patrones de las poblaciones de peces. Se encontró que los estrategas oportunistas fueron favorecidos por la alta variación hídrica en los periodos de sequía, los estrategas de equilibrio se relacionaron con hábitats estables, y que los estrategas periódicos son regulados por las inundaciones y la temperatura. Sin embargo, para algunas especies las estrategias de historias de vida identificadas en este estudio no corresponden a la clasificación reportada en otros estudios. Nuestros resultados resaltan la importancia de estudiar las respuestas de la abundancia de las especies a escalas locales y regionales para identificar las variaciones en las estrategias de historia de vida, las cuales pueden reflejar adaptaciones locales de las especies a cambios hídricos, esto es útil para entender y predecir las repuestas de las poblaciones de peces a los ambientes locales.Palabras clave: Capacidad de recuperación, Estación seca, Estrategias de historia de vida, Sian Ka´an, Temporada de lluvias.

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Factors affecting the occurrence and structure of fish assemblages in isolated wetlands of the upper coastal plain, U.S.A.

Cited by 103 publications

References 21 publications

Fish Community Structure in Temporary Lowland Flooded Grasslands

Fish Community Structure in Temporary Lowland Flooded Grasslands

Do geographically isolated wetlands influence landscape functions?

Fish population responses to hydrological variation in a seasonal wetland in southeast México

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