Movement patterns of catfishes (Ariidae) in a tropical semi‐arid estuary

Dantas, David Valença; Barletta, M.; Costa, Mônica F.; Barbosa-Cintra, S. C. T.; Possatto, Fernanda E.; Ramos, J. A. A.; Lima, André R. A.; Saint-Paul, Ulrich

doi:10.1111/j.1095-8649.2010.02646.x

Cited by 78 publications

(110 citation statements)

References 19 publications

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“…However, E. argenteus showed a wide period of recruitment in a tropical bay suggesting a long spawning period (Araújo & Santos, 1999). Elsewhere in tropical coastal Brazil, three common catfishes (Cathorops spixii Agassiz, C. agassizii Eigenmann & Eigenmann and Sciades herzbergii Bloch) and sciaenid species (Steliffer brasiliensis Schultz and S. steliffer Bloch) peaked in juvenile abundance during the rainy season, a reflection of reproductive cycles (Dantas et al, 2010(Dantas et al, , 2015, a pattern similar to our findings.…”

Section: Discussionsupporting

confidence: 89%

Feeding ecology of three juvenile mojarras (Gerreidae) in a tropical estuary of northeastern Brazil

2016

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Distributions and feeding ecology of mojarra species from shallow water of a tropical estuary in Northeastern Brazil were observed aiming to investigate differences in distribution and resource partitioning among juveniles of three species of mojarras. Fishes were collected with a beach seine across four sites along a salinity gradient from January to December of 2011. Highest abundances were recorded during the rainy season in the upper and middle estuary. Microcrustaceans, mainly copepods, were the preferential prey items of all mojarras, irrespective of size or hydrological season, suggesting these areas may be important nursery habitats. Juveniles of mojarra used two important mechanisms for exploitation of resources: (1) spatial segregation along the salinity and temperature gradient, such as abundance of Eucinostomus melanopterus increased from downstream to upstream estuary, while Eugerres brasilianus displayed an opposite pattern; (2) differences related to the volumetric proportion of the main prey items, with indications that E. melanopterus and Diapterus rhombeus fed predominantly on Calanoida and Cyclopoida, while the diet of E. brasilianus was dominated by items of infauna. Such strategies were important for resource partitioning, favouring the coexistence of these three species in the estuary.A distribuição e a ecologia alimentar de gerreídeos capturados em águas rasas de um estuário tropical no nordeste do Brasil foram abordados com o objetivo de investigar diferenças na distribuição e partição de recursos entre três espécies de gerreídeos juvenis. Arrastos de praia foram realizados ao longo de quatro locais ao longo do gradiente de salinidade entre janeiro e dezembro de 2011. Maiores abundâncias foram registradas durante a estação chuvosa na zona superior e média do estuário. Microcrustáceos, principalmente copépodos, foram as principais presas para as três espécies, independente do tamanho ou do período hidrológico, sugerindo que essas áreas são importantes para o recrutamento. Gerreídeos juvenis usaram dois importantes mecanismos para exploração dos recursos: (1) segregação espacial no uso dos habitats ao longo do gradiente de salinidade e temperatura, com a abundância de Eucinostomus melanopterus aumentando em direção a parte inferior para porção superior do estuário, enquanto Eugerres brasilianus apresentou um padrão oposto; e (2) diferenças relacionadas com a proporção volumétrica das principais presas ingeridas, com indicações que E. melanopterus e Diapterus rhombeus alimentaram-se principalmente de Calanoida e Cyclpoida, enquanto a dieta de E. brasilianus foi dominada por itens da infauna. Tais estratégias foram importantes para partição dos recursos, favorecendo a coexistência dessas três espécies no estuário.

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Section: Discussionsupporting

confidence: 89%

Feeding ecology of three juvenile mojarras (Gerreidae) in a tropical estuary of northeastern Brazil

2016

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“…Estimated haplotype diversity for the 16 specimens from southeastern lineage (São Paulo State) was 0.35 (0.135), while the values recorded for Maranhão (16 specimens) and Ceará (15 specimens) were more than twice this, at 0.85 (0.077) and 0.76 (0.009), respectively. It is important to note that the difference in the sample size for the populations of eastern and southern Brazil was not due to sampling deficiencies, but rather the naturally reduced abundance of the species in this region, a well-documented phenomenon (Dantas et al, 2010;Marceniuk et al, 2015).…”

Section: Resultsmentioning

confidence: 99%

“…The Coco sea catfish is known to practice oral incubation and lack pelagic larval stages (Le Bail et al, 2000), but is rare from coastal lagoons and estuaries (Pinheiro et al, 2006;Dantas et al, 2010;Mendes & Barthem, 2010;Le Bail et al, 2012;Barbanti et al, 2013). In contrast with other ariids, which are typically endemic to relatively restricted geographical areas (Betancur-R. & Armbruster, 2009), species of the genus Bagre are very amply distributed (Marceniuk & Menezes, 2007), considered to be a characteristic of invasive species (Lodge, 1993).…”

Section: Introductionmentioning

confidence: 99%

Early Pleistocene lineages of Bagre bagre (Linnaeus, 1766) (Siluriformes: Ariidae), from the Atlantic coast of South America, with insights into the demography and biogeography of the species

et al. 2016

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Coastal and marine environments are characterized by a lack of evident physical barriers or geographic isolation, and it may be difficult to understand how divergence can arise and be sustained in marine environments. The identification of 'soft' barriers is a crucial step towards the understanding of gene flow in marine environments. The marine catfishes of the family Ariidae are a demersal group with restricted migratory behavior, no pelagic larval stages, and mechanisms of larval retention, representing a potentially useful model for the understanding of historical processes of allopatric speciation in the marine environment. In the present study, two lineages of the Coco sea catfish, Bagre bagre, were recognized from their complete segregation at both mitochondrial and morphological levels. One lineage is distributed between Venezuela and the northern coast of Brazil, including the semiarid northeast coast, while the second lineage is found on the eastern coast of Brazil, including the humid northeast coast. Based on distribution area, habitats preference, and genetic variability, inferences are made in relation to biogeography and demography of lineages in Atlantic coast of South America.Ambientes marinhos costeiros são caracterizados pela falta de barreiras físicas evidentes e ausência de isolamento geográfico, sendo difícil compreender como diferentes linhagens podem surgir e ser mantidas nestes ambientes. A identificação de barreiras permeáveis é um passo importante para a compreensão do fluxo gênico em ambientes marinhos. Os bagres marinhos da família Ariidae são um grupo demersal, com mecanismos de retenção larval e sem comportamento migratório ou estágio larval pelágico, representando um grupo potencialmente útil para a compreensão de processos históricos de especiação alopátrica no ambiente marinho. No presente estudo, duas linhagens do bandeirado ou bagre de fita, Bagre bagre, são reconhecidas com base na completa segregação mitocondrial e morfológica. Uma linhagem é encontrada da Venezuela à costa norte do Brasil, incluindo a costa nordeste semi-árida, enquanto a segunda linhagem é encontrada na costa leste e sudeste do Brasil, incluindo a costa nordeste úmida. Com base na área de distribuição, habitat preferencial e a variabilidade genética, inferências são feitas em relação à biogeografia e demografia das duas linhagens na costa do Atlântico da América do Sul.

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“…According to a number of authors, a high occurrence of juveniles may be associated with the high productivity of a given system (Clough, 1998;Dittmar and Lara, 2001), the low risk of predation due to the structural heterogeneity of mangrove habitats (Laegdsgaard and Johnson, 2001) and a high degree of water turbidity . This underscores the importance of this ecosystem to the development of recruits (Dantas et al, 2010).…”

Section: Discussionmentioning

confidence: 99%

Comparative Analysis of Distribution of Intertidal Fish Assemblages in Different Estuarine Systems on Northern Coast of Brazil

Silva¹,

Castro

Saint-Paul

2017

JSD

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The northern coast of Brazil has more than 30 estuaries distributed along 650 km of coastline. These conditions favor the presence of relatively large fish communities in estuarine environments, but published information on the fish fauna in tidal creeks in northern Brazil is only available for some mangrove systems, and comparative studies between fish estuarine communities in different tidal creeks are less common. The choice of the study area was based on the fact that it has been poorly investigated with regard to estuarine fish fauna in comparison in mangrove tidal creeks using the same fishing gear. The objective of the present study was to compare the composition of the relative biomass of taxonomic, functional and ecological guilds of fish assemblages occurring in estuarine systems along the northern coast of Brazil. The study area of the present comparative analysis extended from the southeastern edge of the Marajoara Gulf to the western edge of the Maranhense Gulf. A comparative analysis among different estuarine systems was performed using data from other studies. The abundance of juveniles was greater in the Caeté, Curuçá and Cururuca estuaries than other estuaries. Cluster analysis separated the estuaries into two distinct groups and significant differences between these groups only exist in relation to geographical proximity. The present investigation indicates that the coastal region between the states of Pará and Maranhão is characterized by high dynamics and environmental heterogeneity, particularly with regard to changes in river discharge and tidal fluctuations. The present results underscore the importance of ecological information on ichthyofauna in tropical estuaries in order to include appropriate descriptors in conservation or restoration processes of marine communities and habitats.

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Movement patterns of catfishes (Ariidae) in a tropical semi‐arid estuary

Cited by 78 publications

References 19 publications

Feeding ecology of three juvenile mojarras (Gerreidae) in a tropical estuary of northeastern Brazil

Feeding ecology of three juvenile mojarras (Gerreidae) in a tropical estuary of northeastern Brazil

Early Pleistocene lineages of Bagre bagre (Linnaeus, 1766) (Siluriformes: Ariidae), from the Atlantic coast of South America, with insights into the demography and biogeography of the species

Comparative Analysis of Distribution of Intertidal Fish Assemblages in Different Estuarine Systems on Northern Coast of Brazil

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