Structure and dynamics of stream fish communities in the flood zone of the lower Purus River, Amazonas State, Brazil

Silva, Fábio Ribeiro da; Ferreira, Efrem Jorge Gondim; Deus, Cláudia Pereira de

doi:10.1007/s10750-010-0307-7

Cited by 10 publications

(12 citation statements)

References 27 publications

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“…Higher and significant values of this ecological parameter were recorded at habitat B, where 23% and 92% of the total pools presented aquatic vegetation and arboreal cover. Similar results were found by Montaña et al (2008) and Silva et al (2010) in lowlands streams from Venezuela and the Amazonas, respectively. A high degree of structural complexity in the karstic pools increased the number of ecological niches, supporting rare and endemic species.…”

Section: Fish Assemblages and Linkages To Environmental Variablessupporting

confidence: 85%

Habitat characteristics and environmental parameters influencing fish assemblages of karstic pools in southern Mexico

2013

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Fish assemblage structure was evaluated and compared among 36 karstic pools located within protected areas of the Calakmul Biosphere Reserve (southern Mexico) and unprotected adjacent areas beyond the Reserve. Nonmetric multidimensional scaling (MDS), indicator species analysis (ISA), and canonical correspondence analysis (CCA) were used to identify which environmental factors reflected local influences and to evaluate the correlation of these variables with fish assemblages structure. Thirty-one species were encountered in these karstic pools, some for the first time within the Reserve. These aquatic environments were separated into three groups based on physico-chemical characteristics. Although CCA identified significant associations between several fish species (based on their relative abundance) and environmental variables (K, NH4, NO3, and conductivity), the most abundant species (Astyanax aeneus, Poecilia mexicana, and Gambusia sexradiata) occur in most pools and under several environmental conditions. Baseline data on fish diversity along with a continued monitoring program are essential in order to evaluate the conservation status of fish assemblages and their habitats, as well as to measure the influence of anthropogenic impacts on pristine habitats such as the karstic pools of the Calakmul Biosphere Reserve.A estrutura da assembleia de peixes foi avaliada e comparada entre 36 poços cársticos localizados dentro de áreas protegidas da Reserva da Biosfera Calakmul (sul do México) e nas áreas desprotegidas adjacentes à Reserva. A análise multidimensional não-métrica (MDS), a análise da espécies indicadora (ISA) e a análise de correspondência canônica (CCA) foram utilizadas para identificar as variáveis ambientais localmente mais importantes e para avaliar a correlação destas com a estrutura das assembleias de peixes. Trinta e uma espécies foram amostradas nos poços cársticos, algumas das quais representam o primeiro registro para a Reserva. Os poços foram separados em três grupos de acordo com as suas características físico-químicas. Embora a CCA tenha possibilitado a identificação de associações significativas entre várias espécies (baseado na abundância relativa das espécies) e as variáveis ambientais (K, NH4, NO3 e condutividade), as espécies mais abundantes (Astyanax aeneus, Poecilia mexicana e Gambusia sexradiata) ocorreram na maioria dos poços em diferentes condições ambientais. A obtenção de dados de base sobre padrões de diversidade, associado a implantação de programas de monitoramento, são essenciais para a avaliação do estado de conservação das assembleias de peixes e seus habitats, assim como para proporcionar informações sobre a influência de impactos antropogênicos sobre habitats prístinos, tais como os poços cársticos da Reserva da Biosfera Calakmul.

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Section: Fish Assemblages and Linkages To Environmental Variablessupporting

confidence: 85%

Habitat characteristics and environmental parameters influencing fish assemblages of karstic pools in southern Mexico

2013

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“…This was similar to other studies (e.g., Weatherly and Omerod 1990;Scarsbrook 2002) supporting the Habitat Templet Theory. Modifications in the environment result in the movement of species that use different stream habitats to complete their life cycles (Silva et al 2010). In our study, changes in the physical condition might cause the macroinvertebrate drift to increase, leading to the observed differences in community composition Persistence represents the ability of a community to return to some previous state following perturbation.…”

Section: Discussionmentioning

confidence: 99%

Inter-annual patterns in the stability and persistence of stream macroinvertebrate communities: relationship with water physicochemical parameters

Xing-zhong

Cai

Jiang

et al. 2013

Journal of Freshwater Ecology

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The relationships between temporal patterns of macroinvertebrate community and water physicochemical parameters were investigated in the Xiangxi River, which is the largest tributary to the Three Gorges Reservoir (TGR) in Hubei province, China. The construction of the TGR has strongly impacted the Xiangxi River watershed, but inter-annual patterns in stream macroinvertebrate communities have not been examined. We sampled water and macroinvertebrates monthly from 2004 to 2006. We assessed the persistence (similarity between years of species assemblage) and stability (similarity between years with respect to relative abundance of species in the community) of the macroinvertebrate community by the Bray-Curtis distance. The relationship between changes in water physicochemical conditions and changes in community structure were assessed with linear regression. The results showed that both the physical and chemical conditions of the water differed significantly among years. Similarly, the macroinvertebrate community structure and composition were significantly different among years. The compositional persistence was positively and significantly related to the physical condition, supporting the Habitat Templet Theory and indicating the importance of physical habitat protection. This study provides information for environmental assessment, which can be used to develop sustainable management strategies.

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“…The rio Purus is characterized by the presence of different environments, which allow the existence of a high diversity of fish fauna (Rapp Py-Daniel and Deus 2003;Silva et al 2010). Despite the increasing, in recent years, of comprehension of fish fauna composition from the rio Purus basin, principally for lower part of the basin, some important tributaries such as the rio Acre have been poorly studied.…”

Section: Discussionmentioning

confidence: 99%

Fishes (Osteichthyes: Actinopterygii) from igarapés of the rio Acre basin, Brazilian Amazon

Claro-García¹,

Vieira²,

Jarduli³

et al. 2013

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This study presents a list of species from igarapés tributaries of the rio Acre, Acre State, Brazil. Fish assemblages were sampled in October 2009, August and October 2010, using standard ichthyological gear, along fifteen sampling sites. A total of 11,395 specimens, distributed in 94 species, 24 families and six orders were collected. The most species-rich orders were Characiformes with 45 species (48.4%) and Siluriformes with 33 species (34.7%); from which Serrapinnus gr. microdon (22.4%), Otocinclus vittatus (20.4%), Phenacogaster pectinatus (10.9%), Brachychalcinus copei (5.8%) and Knodus sp. (5.3%) represented 64.8 % of the specimens captured. The species accumulation curve does not present a stabilization tendency, indicating that, additional sampling can increase the number of species. This study has a high importance for the knowledge of the rio Acre fish fauna composition and adds 52 new records of species to the fish fauna of the rio Purus.

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Structure and dynamics of stream fish communities in the flood zone of the lower Purus River, Amazonas State, Brazil

Cited by 10 publications

References 27 publications

Habitat characteristics and environmental parameters influencing fish assemblages of karstic pools in southern Mexico

Habitat characteristics and environmental parameters influencing fish assemblages of karstic pools in southern Mexico

Inter-annual patterns in the stability and persistence of stream macroinvertebrate communities: relationship with water physicochemical parameters

Fishes (Osteichthyes: Actinopterygii) from igarapés of the rio Acre basin, Brazilian Amazon

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