Nested patterns of spatial diversity revealed for fish assemblages in a west European river

Ibarra, Alonso Aguilar; Park, Young‐Seuk; Brosse, Sébastien; Reyjol, Yorick; Lim, P.; Lek, Sovan

doi:10.1111/j.1600-0633.2005.00096.x

Cited by 44 publications

(37 citation statements)

References 46 publications

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“…The pool of species colonizing a basin is then screened based on the local climate, considering the potential differences in temperature or water availability that is, at least in part, responsible for assemblage characteristics of the tributaries (Tonn, 1990;Jackson et al, 2001). Within a tributary, the species assemblage is then distributed according to the upstream-downstream gradient (Huet, 1959;Vannote et al, 1980;Ibarra et al, 2005;Ferreira and Petrere, 2009). Finally, at the local habitat scale, both physical habitat features and biotic interactions determine the fish assemblage that co-occurs at a particular place on the stream (Tonn, 1990;Jackson et al, 2001).…”

Section: Introductionmentioning

confidence: 99%

Determinants of fish assemblage structure in Mount Itoupé mountain streams (French Guiana)

Brosse

Montoya‐Burgos

Grenouillet

et al. 2013

Ann. Limnol. - Int. J. Lim.

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-Fish assemblages inhabiting the mountain streams of the Guiana shield have scarcely been studied. Here we investigated fish assemblages in eight headwater mountain streams of the Mount Itoupe( French Guiana), and tested how local freshwater fish assemblages are shaped by environmental characteristics. We show that Mount Itoupe´streams host uneven species assemblages, characterized by low species richness (less than ten species per site) and a high proportion of small Siluriform species. Differences in fish assemblage composition between the sites were mainly due to basin identity, but regional climate and position of the site in the river gradient also had a significant effect, although of lower magnitude. In contrast, local habitat hardly affected fish richness, abundances or assemblage composition. Species richness increased along the upstream-downstream gradient, whereas fish abundance depended mainly on the slope orientation of Mount Itoupe´. Although these results need confirmation on a larger amount of sampling sites, located on other Guianese mountains, this preliminary study shows that the mountain streams of the Guiana Shield, although rarely investigated, host not only uneven species assemblages, but also present an original combination of environmental determinants shaping fish assemblage structure. Those rare and original ecosystems hence deserve more attention and should be preserved from human disturbances.

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Section: Introductionmentioning

confidence: 99%

Determinants of fish assemblage structure in Mount Itoupé mountain streams (French Guiana)

Brosse

Montoya‐Burgos

Grenouillet

et al. 2013

Ann. Limnol. - Int. J. Lim.

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“…Faced with the widespread problem related to the difficulty of obtaining reliable and usable data sets, recent advances in conservation biology have suggested that presence-absence data are particularly suitable for the assessment of species distribution in a conservation context (MacKenzie, 2005;Vojta, 2005). Despite the simplicity of such input data, they can provide reliable information for analyzing species distribution, especially in a conservation context (Joseph et al, 2006), and above all the distributions of fish assemblages (Ibarra et al, 2005;Lasne et al, 2007aLasne et al, , 2007b, certain fish species (Oberdorff et al, 2001;Pont et al, 2005), migratory fishes (Eikaas and MacIntosh, 2006) and eel (Broad et al, 2001;. In fish, electrofishing methods are among the most common ways of sampling fish.…”

Section: > Assessing Distribution Patterns With Logistic Modelsmentioning

confidence: 99%

Assessing the freshwater distribution of yellow eel

Lasne

Laffaille

2008

Knowl. Managt. Aquatic Ecosyst.

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In the global context of the decline in wild species, modeling the distribution of populations is a crucial aspect of ecological management. This can be a major challenge, especially for species, such as the European eel, that have complex life cycles, exhibit cryptic behavior, or migrate over long distances. A review of the literature suggests that eel size data could be used to assess and analyze freshwater distribution of eel. We argue that analyses based on small yellow eels (≤ 300 mm) along the longitudinal course of rivers could provide a valuable tool for population monitoring. We propose a standardized catchment recruitment index and a colonization index based on the probability of occurrence (presence/absence data) using logistic models for different size classes. The model developed here provides a convenient guide for assessing yellow eel stages in freshwater areas, and should have concrete applications for management of the species. RÉSUMÉ Évaluation de la distribution des anguilles jaunes en eau douceDans le contexte actuel de déclin des espèces, la modélisation de la distribution des populations est une étape importante pour la gestion de la biodiversité. Cependant, cette modélisation peut s'avérer difficile, particulièrement pour les espèces qui, comme l'anguille européenne, possèdent des cycles de vie complexes, ont un mode de vie cryptique ou effectuent de grandes migrations. Un examen de la littérature suggère que la taille des anguilles peut être utilisée comme critère pour évaluer et analyser la distribution des anguille en eau douce. Nous suggérons que l'examen des patrons de distribution des petites anguilles (≤ 300 mm) le long des réseaux hydrographiques peut fournir des informations précieuses pour le suivi des populations. Nous proposons un indice standardisé de recrutement et de colonisation des bassins versants sur la

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“…This distribution pattern does not completely match the models presented by Frič, Borne & Nowicky in the 19 th century (Holčík et al 1989) or with the model of Ibarra et al (2005). The distribution of Alpine bullhead, common minnow and European chub is similar to the models of Ibarra et al (2005) and Lasne et al (2007). Furthermore, two more species (spirlin and Carpathian barbel), seem to be the key species for the middle reaches of the Udava stream.…”

Section: Discussionmentioning

confidence: 60%

Longitudinal structure of fish assemblages in a minimally disrupted stream

et al. 2011

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Abstract:The longitudinal distribution patterns of fish species are affected by both natural and anthropogenic variables. The role of these factors on the formation of species assemblages is well documented in North America and Western Europe, but detailed information is lacking from Central and Eastern Europe, and the Carpathian region especially. Therefore, we examined the structure of fish assemblages in response to six key environmental parameters in a natural stream system (Udava stream basin, Slovakia). We used the indirect ordination method of gradient analysis (Detrended Correspondence Analysis, DCA) to analyse the species groups and their connections to the sampled sites and to recognize the strongest gradient of assemblage composition. Subsequently, we used the direct ordination method (Canonical Correspondence Analysis, CCA) to identify the strongest gradients in relation to selected variables. Two major gradients were identified that follow the upstream-downstream pattern of fish communities and three variables (distance from source, depth and site slope) are correlated with the first CCA axis (P < 0.05) and two variables (depth and vegetation cover) are correlated with the second CCA axis (P < 0.05). We assume that these factors influence the temperature and the amount of dissolved oxygen that can cause oxygen and temperature stress to intolerant species (e.g., salmonids). Based on these results, we assume that the economically important species, brown trout and grayling, are not native to the stream basin and this status is only the consequence of natural factors. Furthermore, the results suggest that the Udava stream offers favourable conditions for fish species distribution -a view supported by the high variability of particular variables within the proposed model.

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Nested patterns of spatial diversity revealed for fish assemblages in a west European river

Abstract: Nested patterns of spatial diversity revealed for fish assemblages in a west European river Un resumen en españ ol se incluye detrás del texto principal de este artículo.

Cited by 44 publications

References 46 publications

Determinants of fish assemblage structure in Mount Itoupé mountain streams (French Guiana)

Determinants of fish assemblage structure in Mount Itoupé mountain streams (French Guiana)

Assessing the freshwater distribution of yellow eel

Longitudinal structure of fish assemblages in a minimally disrupted stream

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