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| Darling, Emily S.; Graham, Nicholas A. J.; Januchowski-hartley, Fraser A.; Nash, Kirsty L.; Pratchett, Morgan S.; Wilson, Shaun K.. |
| With the ongoing loss of coral cover and the associated flattening of reef architecture, understanding the links between coral habitat and reef fishes is of critical importance. Here, we investigate whether considering coral traits and functional diversity provides new insights into the relationship between structural complexity and reef fish communities, and whether coral traits and community composition can predict structural complexity. Across 157 sites in Seychelles, Maldives, the Chagos Archipelago, and Australia's Great Barrier Reef, we find that structural complexity and reef zone are the strongest and most consistent predictors of reef fish abundance, biomass, species richness, and trophic structure. However, coral traits, diversity, and life... |
| Tipo: Text |
Palavras-chave: Habitat diversity; Species traits; Functional ecology; Reef architecture; Scleractinian corals; Coral reef fish. |
| Ano: 2017 |
URL: https://archimer.ifremer.fr/doc/00389/49997/74763.pdf |
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| Gonçalves,Cristina da Silva; Braga,Francisco Manoel de Souza. |
| The lack of knowledge of the freshwater ichthyofauna of coastal streams in the State of São Paulo (Brazil) is a cause of concern, as these streams are inserted in the Atlantic forest, a hotspot highly threatened. The aim of the present study is to investigate the freshwater ichthyofauna composition of clear and blackwater streams in a preservation area of Brazilian Atlantic forest. Fish samples were taken using electrofishing. A total of 20 species were registered, with Astyanax ribeirae, Hollandichthys multifasciatus, and Mimagoniates microlepis (Characiformes, Characidae) as the more representative. In general, the observed pattern of occurrence and distribution of fish species varied according to habitat characteristics, due to the longitudinal gradient... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Fish structure; Habitat diversity; Jureia-Itatins; PH concentration. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252012000300022 |
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| Oliveira,Edson Fontes; Goulart,Erivelto; Breda,Luciani; Minte-Vera,Carolina Viviana; Paiva,Luiz Ricardo de Souza; Vismara,Melina Rizzato. |
| Ecomorphological patterns of the fish assemblage from the upper Paraná River floodplain, Brazil, were described and evaluated according to trophic (guilds), spatial (habitats) and phylogenetic (taxonomic distances) structures. The samples were obtained through the Long Term Research Project (LTER-CNPq/UEM/NUPELIA) in August and October 2001. Thirty-five species were analyzed from thirty-one morphological variables. Strong significant correlations (Mantel test) between morphology and trophic guilds and between morphology and taxonomy were found, while morphology and habitat revealed a weak correlation. However, the partial Mantel test showed that the correlations between morphology and trophic guilds persist even when the effect of taxonomy is discounted.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Ecomorphology; Ecomorphotypes; Trophic guilds; Habitat diversity; Phylogeny; Upper Paraná River. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252010000300002 |
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| Pina-Amargós, F.; Salvat Torres, H.; Angulo Valdés, J. A.; Cabrera Páez, Y.; García- Machado, E.. |
| En el período comprendido entre 2010 y 2012 se realizaron inventarios de la ictiofauna en el golfo de Ana María, en la región suroriental de Cuba. Este trabajo presenta el primer inventario de la ictiofauna en esta región del archipiélago cubano. La identificación de los peces se realizó principalmente in situ, mediante buceo libre al azar y durante el muestreo de la fauna acompañante de las pesquerías de camarón. La ictiofauna está compuesta por 170 especies. Las familias más diversas son Serranidae, Pomacentridae, Carangidae, Haemulidae, Scaridae y Lutjanidae. Se destaca el papel de manglares, arrecifes de corales de parche (cabezos), complejo de pastos marinos, cascajos de coral y arrecifes de parches pequeños como sitios de crianza de pargos... |
| Tipo: Journal Contribution |
Palavras-chave: Habitat diversity; Check lists; Fishes. |
| Ano: 2012 |
URL: http://hdl.handle.net/1834/4637 |
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| Souza,Marcela A.; Fagundes,Daniela C.; Leal,Cecília G.; Pompeu,Paulo S.. |
| In the present study, we assessed the ecomorphology of two species of Astyanax in streams with different substrates found in the Rio São Francisco Basin. The dominant substrate of each stream was defined as either "fine" (0 to 2 mm), "gravel" (2 to 250 mm), "rock" (> 250 mm), or "leaf bank". We analyzed a total of 22 ecomorphological attributes of Astyanax intermedius Eigenmann, 1908 (127 individuals) and Astyanax rivularis (Lütken, 1875) (238 individuals) adults. We detected significant ecomorphological differences between the populations of A. rivularis and A. intermedius from habitats with different types of substrates. However, the two species did not show the same morphological differences depending on the type of substrate. These results confirmed... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Convergence; Divergence; Ecomorphological attributes; Freshwater fish; Habitat diversity; Intraspecific differences. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702014000100006 |
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| Goulart,Michael; Callisto,Marcos. |
| The objectives of this study were to evaluate spatial and seasonal distribution, assemblage structure and substrate associations of mayfly nymphs in five lotic ecosystems in the headwaters of the Doce River and São Francisco River watersheds, Brazil. Samples were taken in 24 sampling stations during rainy and dry seasons in 1998. In total, 7,066 organisms were collected, belonging to 27 genera and 6 families of Ephemeroptera. The dominant taxa were Americabaetis, Paracloeodes, Leptohyphes and Hagenulus. During the rainy period, the São Francisco River watershed showed higher taxonomic richness, diversity and evenness, while in the dry period, the taxonomic richness was higher in Doce River watershed. No significant differences were found in the taxonomic... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Ephemeroptera; Habitat diversity; Substrate association; Conservation; River ecology. |
| Ano: 2005 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132005000800015 |
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