Relationships between water transparency and abundance of Cynodontidae species in the Bananal floodplain, Mato Grosso, Brazil

Melo, Cesar Enrique de; Lima, Jane Dilvana; Silva, Eliete Francisca da

doi:10.1590/s1679-62252009000200017

Cited by 11 publications

(8 citation statements)

References 27 publications

(27 reference statements)

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“…The assemblage of species that make up fish communities within a river/stream network is attributed mostly to how individual species distributions respond to patterns in vegetated patches (Araujo-Lima et al, 1986;Growns et al, 2003;Pelicice et al, 2008), hydrological connectivity (Amoros & Bornette, 2002;Petry et al, 2003), water transparency (Rodríguez & Lewis, 1997;Reyjol et al, 2008;Melo et al, 2009), physicochemical variables (Koné et al, 2003;Barko et al, 2004), food resources availability (Grenouillet & Pont, 2001), and prey-predator interactions (Piana et al, 2006) among others.…”

Section: Introductionmentioning

confidence: 99%

Patterns in fish species composition and assemblage structure in the upper Salado River lakes, Pampa Plain, Argentina

Rosso

Quirós

2010

Neotrop. ichthyol.

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The Pampa Plain, in the central region of Argentina, is mostly drained by the Salado River. The fish fauna of this river is mostly known from field collections in lower reach lakes. Consequently, we aimed to explore the composition and structure of the fish assemblages in the upper Salado River lakes. Patterns in dominance and persistence of species and assemblage level attributes were correlated with environmental and human activity-derived (NO 3 :NH 4 ) variables. Overall, 19,913 individuals of 17 species included in 5 orders and 11 families were collected. Several species are first records for the upper Salado River lakes. There was a marked proliferation of species in the family Characidae. Conversely, the remainder 10 families were only represented by one or two species. The species composition along the study lakes changed slightly but their relative contribution to the total fish collected (dominance) varied greatly. Rather few species were present in all collections suggesting an important interannual variability in assemblage stability. The gradient in water conductivity was an important factor for the persistence of particular species in the lakes. The gradients in water conductivity and NO 3 :NH 4 ratio were associated with particular fish communities dominated by different groups of species. These results suggest that even when broad management and conservation strategies should encompass the system as a whole, lake-specific approaches must also be addressed. Overall, our results highlight that human impacts on surface waters may interact with environmental factors to influence the dynamics of fish species and the structure of their communities.A planície pampeana, na região central da Argentina, é em grande parte drenada pelo rio Salado. A ictiofauna desse rio é conhecida principalmente pelos estudos conduzidos nos lagos dos segmentos inferiores do rio. Em consequência, procuramos examinar a composição e a estrutura das assembleias de peixes dos lagos do alto rio Salado. Os padrões na dominância e persistência das espécies e os atributos das assembleias de peixes foram correlacionados com variáveis ambientais e variáveis indicadoras de perturbações antropogênicas (NO 3 :NH 4 ). Foram coletados 19913 indivíduos de 17 espécies pertencentes a 5 ordens e 11 famílias. Várias espécies foram registradas pela primeira vez para as lagoas do alto rio Salado. Houve uma marcada proliferação de espécies da família Characidae. Em contraste, as 10 famílias de peixes restantes foram representadas por uma ou duas espécies. A composição de espécies variou pouco ao longo dessas lagoas mas sua contribuição ao total de peixes coletados (dominância) foi muito variável. Poucas espécies estiveram presentes em todas as coletas, sugerindo uma importante variação interanual na estabilidade da assembleia de peixes. O gradiente na condutividade elétrica da água foi importante fator para a persistência de algumas espécies nessas lagoas. A condutividade elétrica da água e o gradiente na relação NO 3 :NH 4 estiveram associados com...

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Section: Introductionmentioning

confidence: 99%

Patterns in fish species composition and assemblage structure in the upper Salado River lakes, Pampa Plain, Argentina

Rosso

Quirós

2010

Neotrop. ichthyol.

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“…Como o aumento de matéria em suspensão determina o aumento da turbidez, esse processo pode afetar severamente a composição da fauna de peixes, já que com a água mais turva os peixes que dependem da visão para se orientar podem ser suprimidos (MELO et al, 2009) ou apresentar redução em sua abundância. De forma geral, em águas mais turvas, aumenta a ocorrência de espécies de peixes que possuem estruturas secundárias, como barbilhões táteis, que auxiliam no processo de orientação em ambientes de menor luminosidade (MELO et al, 2005;KAVALCO;PAZZA, 2007) Isso explicaria a maior abundância de peixes da ordem Siluriformes nos córregos amostrados na bacia do Rio das Mortes em relação aos córregos do rio Xingu.…”

Section: Discussionunclassified

Relação entre variáveis ambientais e a estrutura da comunidade de peixes em córregos das bacias do Rio das Mortes e do rio Xingu – MT, Brasil

2013

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As variáveis ambientais podem determinar e estruturar a composição da fauna de peixes. Estudos que comparem diferenças entre variáveis físicas e químicas da água entre bacias hidrográficas próximas são escassos. Este artigo teve por objetivo verificar quais variáveis limnológicas estão relacionadas à distribuição das espécies de peixes em duas bacias hidrográficas. Para tanto, foram amostrados 20 córregos, divididos entre as bacias do Rio das Mortes e do rio Xingu. Em cada ponto foram medidos um total de 8 variáveis ambientais. Os peixes foram coletados com rede de arrasto. A riqueza total foi de 57 espécies, sendo 29 da bacia do rio Xingu, 35 do Rio das Mortes e 7 espécies comuns a ambas as bacias. As análises demonstraram que os córregos dessas duas bacias têm características limnológicas e fauna distintas. Os córregos da bacia do rio Xingu tiveram menores valores de pH que podem ter sido influenciados pelas elevadas taxas de decomposição orgânica. Os córregos do Rio das Mortes apresentaram valores mais elevados de matéria em suspensão e clorofila, provavelmente ocasionadas pela maior degradação dos córregos e menores níveis de cobertura vegetal.

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“…Some relevant water quality parameters measured at the location showed favorable water conditions for fish to live (Table 6). This is notable, since water quality factors such as current velocity may affect food intake (Belal, 2015), water transparency determines underwater visibility and fish assemblage (Enrique de Melo et al, 2009), and temperature and salinity may decrease species richness and fish abundance (Brucet et al, 2012). Fish can live in various places, but they often occupy a particular place and certain depth (Costa et al, 2013).…”

Section: Fish Group Structurementioning

confidence: 99%

Fish colonization of the artificial reef at Gusung Batu Lampe Muara Badak, Kutai Kartanegara, East Kalimantan, Indonesia: a preliminary study

et al. 2019

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Background: Artificial reefs can be utilized as new habitats to restore fish populations in degraded coral reef environments. This study evaluated the restoring ability of the artificial reef set at Gusung Batu Lampe should be investigated by observing the fish population colonizing the reef. Methods: A fish visual census was applied to identify the species and count their numbers at the site. Underwaterline transect was used to limit the observation area to 200 m2 measured with 50m roll meter. The reef structure comprised 34 tetrahedral concrete blocks arranged in a row, which was 60 cm x 60 cm at the base, 35 cm x 35 cm on top and 60 cm high, and has four holes. Two scuba divers descended, one to ensure the safety of the divers and the other to observe the fish. Each dive took place over 30–45 minutes, and was conducted at 09:00, 13:00 and 17:00. Surveys were performed four times: in November and December 2016, and in January and July 2017. Results: Results showed that fish colonization composed of 180 to 283 individual number with taxa between 13 and 25 species. Number of fish in colonization was found significant difference among observation times, and fish species from the family Chaetodontidae were observed in every survey. Conclusions: A total of 38 fish species from 16 families were identified colonizing the reef during surveys, and in four month observation the fish colonization size increased from the fish density of 1/4.444 m2 to 1/1.481 m2, confirming the ability of the reef to restore fish population.

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Relationships between water transparency and abundance of Cynodontidae species in the Bananal floodplain, Mato Grosso, Brazil

Cited by 11 publications

References 27 publications

Patterns in fish species composition and assemblage structure in the upper Salado River lakes, Pampa Plain, Argentina

Patterns in fish species composition and assemblage structure in the upper Salado River lakes, Pampa Plain, Argentina

Relação entre variáveis ambientais e a estrutura da comunidade de peixes em córregos das bacias do Rio das Mortes e do rio Xingu – MT, Brasil

Fish colonization of the artificial reef at Gusung Batu Lampe Muara Badak, Kutai Kartanegara, East Kalimantan, Indonesia: a preliminary study

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