An update on the fish composition (Teleostei) of the coastal lagoons of the Restinga de Jurubatiba National Park and the Imboassica Lagoon, northern Rio de Janeiro State

Dario, Fabio Di; Petry, Ana Cristina; Pereira, Matheus Maia de Souza; Mincarone, Michael M.; Agostinho, Lorena Soares; Camara, Ellen Martins; Caramaschi, Érica Pellegrini; Britto, Marcelo R.

doi:10.1590/s2179-975x2013000300006

Cited by 18 publications

(20 citation statements)

References 5 publications

(8 reference statements)

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“…Peacock mollies ( Poecilia vivipara Bloch & Schneider 1801; Figure ) have a wide distribution range along the eastern coast of South America, from Venezuela and some islands of the Lesser Antilles in the north to the Lagoa dos Patos in south Brazil (Koerber & Litz, ; Lucinda, ; Poeser, ). The species also occurs in several dozen coastal lagoons in northern Rio de Janeiro state in Brazil, where different populations experience pronounced variation in salinity, ranging from oligosaline (0.2 ppt) to hypersaline, that is, more than twice marine salinity (74 ppt; Di Dario et al., ; Correia, ). Organisms living under such inhospitable conditions are commonly referred to as “extremophiles” and exhibit an array of physiological and behavioral adaptations to cope with the stressors they are exposed to (Laverty & Skadhauge, ; Plath, Tobler, & Riesch, ).…”

Section: Methodsmentioning

confidence: 99%

Predation risk and abiotic habitat parameters affect personality traits in extremophile populations of a neotropical fish (Poecilia vivipara)

Sommer-Trembo

Petry

Silva

et al. 2017

Ecology and Evolution

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Understanding whether and how ambient ecological conditions affect the distribution of personality types within and among populations lies at the heart of research on animal personality. Several studies have focussed on only one agent of divergent selection (or driver of plastic changes in behavior), considering either predation risk or a single abiotic ecological factor. Here, we investigated how an array of abiotic and biotic environmental factors simultaneously shape population differences in boldness, activity in an open‐field test, and sociability/shoaling in the livebearing fish Poecilia vivipara from six ecologically different lagoons in southeastern Brazil. We evaluated the relative contributions of variation in predation risk, water transparency/visibility, salinity (ranging from oligo‐ to hypersaline), and dissolved oxygen. We also investigated the role played by environmental factors for the emergence, strength, and direction of behavioral correlations. Water transparency explained most of the behavioral variation, whereby fish from lagoons with low water transparency were significantly shyer, less active, and shoaled less than fish living under clear water conditions. When we tested additional wild‐caught fish from the same lagoons after acclimating them to homogeneous laboratory conditions, population differences were largely absent, pointing toward behavioral plasticity as a mechanism underlying the observed behavioral differences. Furthermore, we found correlations between personality traits (behavioral syndromes) to vary substantially in strength and direction among populations, with no obvious associations with ecological factors (including predation risk). Altogether, our results suggest that various habitat parameters simultaneously shape the distribution of personality types, with abiotic factors playing a vital (as yet underestimated) role. Furthermore, while predation is often thought to lead to the emergence of behavioral syndromes, our data do not support this assumption.

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Section: Methodsmentioning

confidence: 99%

Predation risk and abiotic habitat parameters affect personality traits in extremophile populations of a neotropical fish (Poecilia vivipara)

Sommer-Trembo

Petry

Silva

et al. 2017

Ecology and Evolution

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“…This heterogeneity allowed us to account for a wide range of habitat variables. Note, however, that the orientation of the lagoons parallel to the coastline makes such variables relatively uniform within each lagoon (Di Dario et al, 2013;Kjerfve, 1994). These systems operate like intermittently open estuaries, remaining most of the time closed off from the sea, especially during low rainfall regimes (Whitfield et al, 2008).…”

Section: Study Sitementioning

confidence: 99%

Environmental and anthropogenic factors structuring waterbird habitats of tropical coastal lagoons: Implications for management

Tavares

Guadagnin

Moura

et al. 2015

Biological Conservation

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“…The goal of this study is to examine morphological and molecular data from several populations previously identified as J. lineata and J. multidentata by various authors (Ghedotti & Weitzman, ; Hollanda‐Carvalho et al, ; Caramaschi et al, ; Calviño, ; Sánchez‐Botero et al, ; Di Dario et al, ) and to test the hypothesis that J. multidentata is a junior synonym of J. lineata . The study will also evaluate the possibility of additional cryptic species within the J. lineata complex and generate a phylogenetic hypothesis for the complex based on the morphological matrix developed by Ghedotti (), with additional information taken from Aguilera et al .…”

Section: Introductionmentioning

confidence: 99%

Jenynsia lineata species complex, revision and new species description (Cyprinodontiformes: Anablepidae)

Amorim

2018

Journal of Fish Biology

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The Jenynsia lineata species complex comprises J. lineata from Montevideo, Uruguay and Jenynsia multidentata, from coastal basins of Brazil, Uruguay and Argentina up to 1200 m a.s.l. Taxonomic divisions within this group were tested using three different species delimitation methods, which found the two existing names to be synonyms and revealed a new cryptic species. Jenynsia darwini sp. nov. is distinguished from all congeners by having a unique combination of character states, including the shape of the dorsal postcleithrum (three times higher than wide v. less than two times higher than wide) and female colour pattern in the half of the caudal peduncle with rows of chromatophores segmented in unaligned spots (v. aligned spots forming lines). The new species also differs from J. lineata by having 26 nucleotide substitutions in the mitochondrial gene cytochrome c oxidase I (coI). Phylogenetic analysis of the genus based on morphological characters proposed by previous studies corroborates monophyly of the subgenera Plesiojenynsia and Jenynsia, with the new species being allocated to the subgenus Jenynsia as the sister group of J. lineata.

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An update on the fish composition (Teleostei) of the coastal lagoons of the Restinga de Jurubatiba National Park and the Imboassica Lagoon, northern Rio de Janeiro State

Cited by 18 publications

References 5 publications

Predation risk and abiotic habitat parameters affect personality traits in extremophile populations of a neotropical fish (Poecilia vivipara)

Predation risk and abiotic habitat parameters affect personality traits in extremophile populations of a neotropical fish (Poecilia vivipara)

Environmental and anthropogenic factors structuring waterbird habitats of tropical coastal lagoons: Implications for management

Jenynsia lineata species complex, revision and new species description (Cyprinodontiformes: Anablepidae)

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