Looking through a dirty glass: how different can the characterization of a fish fauna be when distinct nets are used for sampling?

Ceni, Gianfranco; Vieira, João Paes

doi:10.1590/s1984-46702013000500005

Cited by 10 publications

(10 citation statements)

References 26 publications

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“…The hydrographic system of Mirim Lagoon is Brazil and Uruguay (Kotzian & Marques 2004). However, there is still an absence of studies and knowledge of the fish fauna occurring in the sub-basins located in southern Brazil (Buckup & Reis 1997, Ceni & Vieira 2013. In this context, the present study describes the fish assemblage of the hydrographic basin of Chasqueiro Stream, an integral part of the Mirim Lagoon system, with the goal of contributing to the advancement of knowledge on the composition of its ichthyofauna, as well as the production of information that can be used in action protocols aiming the system conservation.…”

Section: Methodsmentioning

confidence: 99%

Ichthyofauna of the hydrographic basin of the Chasqueiro Stream (Mirim Lagoon system, southern Brazil): generating subsidies for conservation and management

et al. 2015

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Studies that organize lists of species are essential and act as the starting point for future discussions on the ecology of fish in environments that are poorly studied. The present paper describes the fish assemblage of the hydrographic basin of Chasqueiro Stream, an important component of the Mirim Lagoon system. Fish were collected during one year period between August/2012 and July/2013 in six sites, comprising three biotopes: upstream, reservoir and downstream. A total of 22,853 specimens were collected, and were distributed into 83 species, 20 families, and eight orders. The two species with the largest number of individuals captured were Bryconamericus iheringii with 2,904 (12.71%) and Cheirodon ibicuiensis with 2,868 (12.55%). Characiformes and Siluriformes were the most representative orders in terms of richness and abundance. Bryconamericus iheringi and Cyanocharax alburnus were the species with the highest abundance upstream, while Hyphessobrycon luetkenii and Corydoras paleatus contributed more to the abundance downstream. Cheirodon ibicuhiensis and Heterocheirodon jacuhiensis were the most representative species in the reservoir. This study revealed a rich fauna of fish, which should be preserved for future generations and for the maintenance of local and regional biodiversity. Keywords: Neotropical region, costal plain, Patos-Mirim Lagoon system. CORRÊ A. F., OLIVEIRA, E.F., TUCHTENHAGEN, T., POUEY, J., PIEDRAS, S. Ictiofauna da bacia hidrográfica do arroio Chasqueiro (sistema da Lagoa Mirim, sul do Brasil): gerando subsídios para plano de conservac¸ão e gestão. Biota Neotropica. 15(4): e0006. http://dx.doi.org/10.1590/1676-0611-BN-2015-0006Resumo: Estudos que organizam listas de espécies são essenciais como ponto de partida para futuros debates sobre a ecologia de peixes em ambientes que são pouco estudados. O presente artigo descreve a fauna de bacia hidrográfica do arroio Chasqueiro, componente importante do sistema da Lagoa Mirim. Os peixes foram coletados no período de um ano, entre os meses de agosto de 2012 e julho de 2013, em seis locais amostrais, que compreendem três bió topos, montante, reservató rio e jusante. Um total de 22.853 indivíduos foi coletado, distribuídos em 83 espécies, 20 famílias e oito ordens. As duas espécies com maior abundância foram Bryconamericus iheringii com 2.904 (12,71%) e Cheirodon ibicuiensis com 2.868 (12,55%). Characiformes e Siluriformes foram as ordens mais representativas em termos de riqueza e abundância. Bryconamericus iheringii e Cyanocharax alburnus foram as que apresentaram as maiores abundâncias a montante, Hyphessobrycon luetkenii e Corydoras paleatus contribuíram mais na abundância a jusante, enquanto no reservató rio as mais abundantes foram Cheirodon ibicuhiensis e Heterocheirodon jacuhiensis. Este estudo revelou uma rica ictiofauna na bacia hidrográfica do arroio Chasqueiro, a qual deveria ser preservada para as gerac¸õ es futuras e para a manutenc¸ão da biodiversidade local e regional. Palavras-chave: Região neotropical, planície cost...

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Section: Methodsmentioning

confidence: 99%

Ichthyofauna of the hydrographic basin of the Chasqueiro Stream (Mirim Lagoon system, southern Brazil): generating subsidies for conservation and management

et al. 2015

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“…Values of %CPUE and %FO were compared with their respective means (µ%CPUE and µ%FO), and the species classified as follows: abundant and frequent (%CPUE ≥ µ%CPUE, FO% ≥ µFO%); abundant and non-frequent (%CPUE ≥ µ %CPUE, FO% < µ FO%); non-abundant and frequent (%CPUE < µ %CPUE, FO% ≥ µ FO%); or present (%CPUE < µ %CPUE, FO% < µ FO%). The species identified as abundant and frequent were considered as dominant (Artioli et al, 2009;Ceni and Vieira, 2013).…”

Section: Discussionmentioning

confidence: 99%

“…The faunal similarity analysis, based on the species presence/absence relationship between samples, was calculated using the Jaccard index (JI). The faunal similarity, based on species relative abundance, was obtained by calculating the percent similarity index (PSI) (Krebs, 1989;Magurran, 2004;Ceni and Vieira, 2013).…”

Section: Discussionmentioning

confidence: 99%

Long-Term Spatiotemporal Variation in the Juvenile Fish Assemblage of the Tramandaí River Estuary (29°S) and Adjacent Coast in Southern Brazil

et al. 2019

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We evaluated connectivity, resiliency, and spatiotemporal variation in fish associations between the Tramandal River estuary (TRE) and the adjacent coast (AC). This was based on intermittent and seasonal data covering a discontinuous 21-year period (1995 to 2016) obtained using a standard beach seine with replicate samples collected at several points. In the TRE (405 samples; 42,987 individuals) 55 species were captured. In the AC (297 samples; 54,295 individuals) 41 species were captured. After data standardization the expected richness of the TRE [E(S) = 18.2] was significantly greater (P < 0.05) than that of the AC [E(S) = 14.4]. The fish association structure and distribution patterns in TRE and AC were dynamic and interconnected but quite different in terms of species composition, especially due to the influence of local salinity. The TRE association was richer in a number of species but numerically dominated by marine estuarine-dependent juveniles. The AC association was represented by a few typical marine species in addition to a couple of estuarine-related transient species who used the surf-zone as a passageway to enter the estuary. Even if there was a higher percentage of common species reported (30 out of 66), the monthly average Jaccard index of similarity (I J = 28%) and the monthly average percent similarity index (I PS = 30%) were low, suggesting that the shallow water functional connectivity between AC and TRE was represented by few species that occur equally in abundance in both environments. Trachinotus marginatus and Mugil liza numerically dominated in the AC and M. liza, Mugil curema, and Atherinella brasiliensis at TRE. Juvenile M liza and M curema added up to >70% of the total individuals sampled in both environments. General linearized models (GLM) revealed that diversity was not influenced by interannual variations, evidencing that juvenile fish assemblage of AC and TRE are resilient through the years. Standardized beach samples are able to reveal long-term fluctuation in shallow estuarine fish communities but without an apparent loss in species composition, richness, and relative total abundance. The only observed interdecadal trend was the reduction in abundance of juvenile M. liza that seemed to parallel the reduction in abundance of the adult fishing stocks in southern Brazil.

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“…argenteus and H . clupeola (Cervigón et al ., ), which colonize shallow beaches for sheltering, feeding and nursery purposes (Ceni & Vieira, ). On the other hand, planktivorous species ( H .…”

Section: Discussionmentioning

confidence: 99%

Responses of fish assemblages of sandy beaches to different anthropogenic and hydrodynamic influences

Franco

Chaves

Castel‐Branco

et al. 2016

Journal of Fish Biology

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This study tested whether some attributes of the diversity, communities and populations of surf-zone fish assemblages varied with different hydrodynamic and anthropogenic influences at four Guanabara Bay sandy beaches: Dentro (sheltered with limited human access), Fora (exposed with limited human access), Urca (sheltered with unlimited human access) and Vermelha (exposed with unlimited human access), between autumn 2011 and summer 2012. Twenty-nine species and 1613 individuals were recorded from 76 trawls. The 10 most abundant species accounted for 94·5% of the total number, but only four species (Diplodus argenteus, Harengula clupeola, Sardinella brasiliensis and Sphoeroides greeleyi) were recorded at all four beaches, revealing a high level of species substitution. Fish assemblages differed not only for diversity attributes, but also at community and population levels, with lower values of the Shannon-Wiener index, richness and total fish abundance and biomass at Vermelha beach, and higher densities of Trachinotus carolinus, Atherinella brasiliensis and S. greeleyi related to beaches with high anthropogenic influence. The findings reveal that fish assemblages of Dentro, Fora, Urca and Vermelha beaches differed not only in response to hydrodynamic influences, but also due to the effects of different degrees of human interference (i.e. presence of solid residues, population density and fishing impacts), emphasizing the importance of the sheltered and less anthropogenically affected beaches, as spawning, nursery and growth areas.

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Looking through a dirty glass: how different can the characterization of a fish fauna be when distinct nets are used for sampling?

Cited by 10 publications

References 26 publications

Ichthyofauna of the hydrographic basin of the Chasqueiro Stream (Mirim Lagoon system, southern Brazil): generating subsidies for conservation and management

Ichthyofauna of the hydrographic basin of the Chasqueiro Stream (Mirim Lagoon system, southern Brazil): generating subsidies for conservation and management

Long-Term Spatiotemporal Variation in the Juvenile Fish Assemblage of the Tramandaí River Estuary (29°S) and Adjacent Coast in Southern Brazil

Responses of fish assemblages of sandy beaches to different anthropogenic and hydrodynamic influences

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