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| Palacios-Narváez,Stephania; Valencia,Bellineth; Giraldo,Alan. |
| ABSTRACT The Cortez rainbow wrasse, Thalassoma lucasanum, is an abundant reef fish of the Eastern Tropical Pacific (ETP). Unlike other species of the genus Thalassoma that are recognized as cleaners, in T. lucasanum this behavior is rare, since it feeds mainly on invertebrates through foraging. However, information on the trophic ecology of this species is limited, especially in the ETP. In this study, we characterize the feeding habits of T. lucasanum in Gorgona Island (ETP) from analyzing its gut contents and calculating its trophic niche. Mollusks were the main food resource of T. lucasanum, being this the most important and frequent prey item found in 100 % of the stomachs analyzed (n = 5). In terms of biomass, crustaceans had the greatest contribution... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Coral reef fish; Stomach content; Trophic interactions; Colombian Pacific.. |
| Ano: 2020 |
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0122-97612020000300251 |
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| Mcclanahan, Tim R.; Schroeder, Robert E.; Friedlander, Alan M.; Vigliola, Laurent; Wantiez, Laurent; Caselle, Jennifer E.; Graham, Nicholas A. J.; Wilson, Shaun; Edgar, Graham J.; Stuart-smith, Rick D.; Oddenyo, Remy M.; Cinner, J. E.. |
| Baselines and benchmarks (B&Bs) are needed to evaluate the ecological status and fisheries potential of coral reefs. B&Bs may depend on habitat features and energetic limitations that constrain biomass within the natural variability of the environment and fish behaviors. To evaluate if broad B&Bs exist, we compiled data on the biomass of fishes in similar to 1000 reefs with no recent history of fishing in 19 ecoregions. These reefs spanned the full longitude and latitude of Indian and Pacific Ocean reefs and included older high-compliance fisheries closures (>15 yr closure) and remote reef areas (>9 h travel time from fisheries markets). There was no significant change in biomass over the 15 to 48 yr closure period but closures had only... |
| Tipo: Text |
Palavras-chave: Baselines; Coral reef fish; Fisheries and ecological indicators; Pristine or virgin biomass; Sustainability. |
| Ano: 2019 |
URL: https://archimer.ifremer.fr/doc/00589/70064/68028.pdf |
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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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| Powell, Abigail; Pelletier, Dominique; Jones, Timothy; Mallet, Delphine. |
| Marine protected areas (MPA) and in particular no-take marine reserves have been identified as important tools for the conservation of reef fish and habitats. A significant challenge of reef fish monitoring is to determine the influence of temporal factors on fish counts. Fish assemblages are dynamic and changes in activity patterns throughout the day can influence the results of surveys. While many monitoring programs account for the impacts of spatial heterogeneity on fish assemblages the effects of short-term temporal variation are less well known. In the present study, we analysed data from 197 video drops inside and outside New Caledonian MPAs and examined temporal variations in various metrics commonly used to monitor marine reserves. In addition to... |
| Tipo: Text |
Palavras-chave: Monitoring; Marine protected areas; Temporal variability; Coral reef fish. |
| Ano: 2016 |
URL: https://archimer.ifremer.fr/doc/00358/46964/46878.pdf |
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| D'Agata, Stephanie; Vigliola, Laurent; Graham, Nicholas A. J.; Wantiez, Laurent; Parravicini, Valeriano; Villeger, Sebastien; Gerard Mou-tham,; Frolla, Philippe; Friedlander, Alan M.; Kulbicki, Michel; Mouillot, David. |
| High species richness is thought to support the delivery of multiple ecosystem functions and services under changing environments. Yet, some species might performunique functional roles while others are redundant. Thus, the benefits of high species richness in maintaining ecosystem functioning are uncertain if functions have little redundancy, potentially leading to high vulnerability of functions. We studied the natural propensity of assemblages to be functionally buffered against loss prior to fishing activities, using functional trait combinations, in coral reef fish assemblages across unfished wilderness areas of the Indo-Pacific: Chagos Archipelago, New Caledonia and French Polynesia. Fish functional diversity in these wilderness areas is highly... |
| Tipo: Text |
Palavras-chave: Coral reef fish; Wilderness areas; Redundancy; Baseline functional vulnerability. |
| Ano: 2016 |
URL: https://archimer.ifremer.fr/doc/00366/47680/68025.pdf |
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