Meals for two: foraging activity of the butterflyfish Chaetodon Striatus (perciformes) in southeast Brazil

Bonaldo, Roberta M.; Krajewski, João Paulo; Sazima, Iván

doi:10.1590/s1519-69842005000200004

Cited by 27 publications

(17 citation statements)

References 17 publications

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“…A putative role of ecological features on the genetic structure of the analyzed species is also supported in the present work. While H. ciliaris represents a specialized spongivore, analyses of C. striatus along the Brazilian coast have demonstrated a high plasticity in both substrate preference and feeding behavior Bonaldo et al, 2005;Floeter et al, 2006). These features may facilitate the colonization of distinct habitats throughout the coast.…”

Section: Resultsmentioning

confidence: 99%

“…Representatives from both families play an important role on reef community structure, supposed to be greater than their relative abundance might suggest, since they are usually seen in pairs or small aggregations (Ferreira et al, 2004;Bonaldo et al, 2005). For example, juveniles of P. paru and P. arcuatus (Linnaeus, 1758) act as regular cleaners on a variety of client assemblages, ranging from small herbivores to large carnivores (Sazima et al, 1999), and intensive harvesting may disrupt such inter-specific associations and affect the entire ecosystem (Gasparini et al, 2005).…”

Section: Diversidade Genética Em Três Espécies De Peixes Ornamentais mentioning

confidence: 99%

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Genetic diversity of three ornamental reef fishes (Families Pomacanthidae and Chaetodontidae) from the Brazilian coast

Affonso

Galetti

2007

Braz. J. Biol.

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Reef fishes of the families Pomacanthidae (angelfish) and Chaetodontidae (butterflyfish) are popular ornamental species, intensively harvested for the aquarium trade. The impacts of such activity on intra-specific diversity and reef ecosystems are still poorly understood in the south Atlantic. In the present work, a fine-scale genetic analysis using RAPD markers was performed in distinct samples of the queen angelfish (Holacanthus ciliaris), French angelfish (Pomacanthus paru), and banded butterflyfish (Chaetodon striatus) along the Brazilian coast. Most of the genetic variation in the three species was related to intra-population diversity. However, AMOVA results demonstrated that H. ciliaris presents a subtle population structure (φ st = 0.132, P = 0.003), while P. paru and C. striatus present low genetic differentiation, especially remarkable in the latter (φ st = 0.090, P = 0.001 and φ st = 0.041, P = 0.028, respectively). Gene flow (Nm) was also higher in C. striatus than in the angelfish species. The reported patterns of genetic differentiation contrast with the similar pelagic stage of the selected species, suggesting that larval dispersal per se is a poor predictor of population structure in these reef fishes. Ecological features coupled with biogeographic history and distinct local selective pressures might play a major role on the genetic composition of each species. Although preliminary, the present results provide a baseline for monitoring the genetic variability in these reef species. These differences in the genetic structure among co-occurring species should be taken into consideration for the conservation of eventual evolutionary units along the Brazilian Province.Keywords: angelfish, butterflyfish, dispersal, RAPD, reef fish. Diversidade genética em três espécies de peixes ornamentais de recifes (famílias Pomacanthidae e Chaetodontidae) da costa brasileira ResumoOs peixes recifais das famílias Pomacanthidae (peixes-anjo) e Chaetodontidae (peixes-borboleta) são espécies ornamentais populares, intensivamente coletadas para o comércio aquariófilo. Os impactos dessa atividade na diversidade intra-específica e no ecossistema recifal ainda são pouco conhecidos no Atlântico Sul. No presente trabalho, uma análise genética em fina escala usando marcadores RAPD foi realizada em diferentes amostras de Holacanthus ciliaris (anjo ciliaris), Pomacanthus paru (peixe frade) e Chaetodon striatus (borboleta striatus) ao longo da costa brasileira. A maior parte da variação genética nas três espécies relacionou-se à diversidade intrapopulacional. Contudo, resultados da AMOVA demonstraram que H. ciliaris apresenta uma estruturação populacional sutil (φ st = 0,132, P = 0,003), enquanto P. paru e C. striatus apresentam uma baixa diferenciação genética, particularmente reduzida na última (φ st = 0,090, P = 0,001 e φ st = 0,041, P = 0,028, respectivamente). O fluxo gênico (Nm) também foi mais alto em C. striatus do que nas espécies de Pomacanthidae. Os padrões de diferenciação genética registrados contrastam com...

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Section: Resultsmentioning

confidence: 99%

Section: Diversidade Genética Em Três Espécies De Peixes Ornamentais mentioning

confidence: 99%

Genetic diversity of three ornamental reef fishes (Families Pomacanthidae and Chaetodontidae) from the Brazilian coast

Affonso

Galetti

2007

Braz. J. Biol.

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“…It is described as the most potent non-protein marine toxin known (Gleibs et al 1995, Mueller andHaywick 1995) and is primarily found (or produced) in zoanthids (Moore andScheuer 1971, Gleibs et al 1995) and in dinoagellates (Usami et al 1995). Despite of this several marine organisms are reported to forage on Palythoa (Bonaldo et al 2005, Bozec et al 2005, Stampar et al 2007). The PTX apparently does not affect some species, probably because different levels of resistance or tolerance to toxic secondary metabolites (Gleibs and Mebs 1999).…”

Section: Introductionmentioning

confidence: 99%

Influence of Palythoa caribaeorum (Anthozoa, Cnidaria) zonation on site-attached reef fishes

Mendonça-Neto

Ferreira

Chaves

et al. 2008

An. Acad. Bras. Ciênc.

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This work aimed to test the influence of Palythoa caribeorum, a widely distributed zoanthid in the Atlantic, on siteattached reef fish in a subtropical rocky shore. Density, richness and vertical distribution of reef fish inside (ID) and outside (OD) previously chosen P. caribaeorum dominance patches were compared through stationary visual censuses along three different periods. Fishes were grouped in different trophic guilds to evidence differences in resources uses in both treatments. A complexity index was estimated by the chain link method and percentage covering of benthic organisms was obtained analyzing random points from replicated photo-quadrats. We observed thirty-eight species of fishes, belonging to twenty-five families. Reef fish communities between studied patches were similar, both in terms of species composition and vertical distribution. Considering only the most site-attached fishes, which were the most frequent and abundant species, data showed that ID sustains higher diversity and abundance than OD. Results showed that benthic composition differ significantly among patches whereas complexity remained without differences. Otherwise, results indicated that these areas might play an important role in space limitation, structuring neighboring benthic community and consequently reef fish assemblages.

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“…Furthermore, these values are considerably lower than those recorded for other reef fishes (e.g. Jones and Norman 1986, Bonaldo et al 2005, Meekan et al 2010, supporting Nursall's affirmation that Ophioblennius species are highly efficient time-minimizers.…”

Section: Feeding Behaviourmentioning

confidence: 57%

Abundance and behavioural ecology of the blenny <em>Ophioblennius trinitatis</em> (Teleostei: Blenniidae) at an oceanic archipelago of Brazil (Atlantic)

2014

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Summary: Local patterns of fish density, microhabitat use, feeding behaviour, bite rate, territory area and agonistic interactions were recorded for Ophioblennius trinitatis at an oceanic archipelago (southwestern Atlantic). Rugosity, number of crevices and benthic diversity positively predicted the distribution of O. trinitatis. Turf algae was the preferred food item at all sites, but given its high availability inside and outside territory boundaries, it did not seem to be a limiting factor on the density of this blenny, as opposed to substrate heterogeneity. Bite rate was higher in the afternoon and for smaller individuals (juveniles). Territory size showed local variation and, although larger territories may be an effect of density-dependent conditions (more available space in low-density areas), we propose that individuals expand territories to compensate for residing in areas of lower quality (i.e. of low structural complexity). Larger individuals defended larger territories and residents responded differently to intruders, with higher rates of agonistic interactions towards potential competitors. Higher agonistic rates were also observed in larger territories and at low-complexity sites.Keywords: behaviour; Blennidae; Brazil; density; territory; microhabitat. La abundancia y la ecología del comportamiento del blenny Ophioblennius trinitatis (Teleostei: Blenniidae) en un archipiélago oceánico de Brasil (Atlántico) Resumen: En este trabajo se han estudiado las pautas en la densidad, la utilización del micro hábitat, el comportamiento alimentario, las tasas de mordisqueo, la superficie del territorio y las interacciones agonísticas de Ophioblennius trinitatis en un archipiélago oceánico del SO Atlántico. Los mejores predictores de la distribución de O. trinitatis fueron la rugosidad, el número de grietas y la diversidad bentónica. El turf algal es el alimento preferido de este pez en todos los lugares, pero dada su elevada disponibilidad, dentro y fuera de los territorios, no pareció ser un factor limitante para este blénido como lo fue la heterogeneidad del substrato. La tasa de mordisqueo resultó ser más elevada entre los peces pequeños (juveniles) y especialmente por la tarde. La superficie del territorio presentó notables variaciones locales y, a pesar de que los territorios mayores pueden ser el resultado de un efecto denso-dependiente (al haber más espacio disponible en la zonas con densidades bajas), proponemos que los individuos expanden su territorio para compensar la baja calidad ambiental de ciertas zonas (una baja complejidad estructural). Los ejemplares mayores defendían territorios más extensos y respondían de manera diferente ante los intrusos, con una mayor tasa de interacciones agonísticas hacia los potenciales intrusos. Las interacciones agonísticas también fueron más elevadas en los territorios más amplios y con una baja complejidad.Palabras clave: comportamiento; Blennidae; densidad; territorio; micro hábitat.

show abstract

Meals for two: foraging activity of the butterflyfish Chaetodon Striatus (perciformes) in southeast Brazil

Cited by 27 publications

References 17 publications

Genetic diversity of three ornamental reef fishes (Families Pomacanthidae and Chaetodontidae) from the Brazilian coast

Genetic diversity of three ornamental reef fishes (Families Pomacanthidae and Chaetodontidae) from the Brazilian coast

Influence of Palythoa caribaeorum (Anthozoa, Cnidaria) zonation on site-attached reef fishes

Abundance and behavioural ecology of the blenny <em>Ophioblennius trinitatis</em> (Teleostei: Blenniidae) at an oceanic archipelago of Brazil (Atlantic)

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