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| Pereira,Pedro H.C.; Ferreira,Beatrice P.; Rezende,Sérgio M.. |
| Seagrass beds are used by juvenile fishes in different ways, generally as nursery sites, shelter from predators, reducing competition and increasing availability of food resources, thus establishing a relationship of connectivity with other ecosystems. In the present study, the community structure of the ichthyofauna associated with seagrass beds on the Formoso River (Pernambuco - Brazil) was evaluated during the winter of 2008. Twenty-seven manual trawls (15 daytime and 12 nighttime) were performed, and a total of 358 fishes belonging to 18 families, 21 genus and 25 species were collected. The Catch Per Unit Effort (CPUE) by trawling average was 13.5 and 4.95 individuals per species per trawl. The most abundant families were Scaridae (n = 111),... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Connectivity; Seagrass beds; Reef fishes; Diversity. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652010000300009 |
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| Polanco Fernández, Andrea; Marques, Virginie; Fopp, Fabian; Juhel, Jean‐baptiste; Borrero‐pérez, Giomar Helena; Cheutin, Marie‐charlotte; Dejean, Tony; González Corredor, Juan David; Acosta‐chaparro, Andrés; Hocdé, Régis; Eme, David; Maire, Eva; Spescha, Manuel; Valentini, Alice; Manel, Stéphanie; Mouillot, David; Albouy, Camille; Pellissier, Loïc. |
| Environmental DNA (eDNA) analysis is a revolutionary method to monitor marine biodiversity from animal DNA traces. Examining the capacity of eDNA to provide accurate biodiversity measures in species‐rich ecosystems such as coral reefs is a prerequisite for their application in long‐term monitoring. Here, we surveyed two Colombian tropical marine reefs, the island of Providencia and Gayraca Bay near Santa Marta, using eDNA and underwater visual census (UVC) methods. We collected a large quantity of surface water (30 L per filter) above the reefs and applied a metabarcoding protocol using three different primer sets targeting the 12S mitochondrial DNA, which are specific to the vertebrates Actinopterygii and Elasmobranchii. By assigning eDNA sequences to... |
| Tipo: Text |
Palavras-chave: Biodiversity; Biomonitoring; Caribbean Sea; Environmental DNA; Reef fishes; Underwater visual census. |
| Ano: 2021 |
URL: https://archimer.ifremer.fr/doc/00653/76543/77643.pdf |
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| Medeiros,Paulo R.; Rosa,Ricardo S.; Francini-Filho,Ronaldo B.. |
| In recent years, many studies investigated how density-dependent factors, such as shortages in microhabitat and food availability influence the structure of reef fish assemblages. Most of what is currently known, however, comes from comparisons of isolated patch reefs and from correlations between fish abundance and one or few microhabitat variables. In addition, most studies were done in the Caribbean and Indo-Pacific regions, whereas the South Atlantic region has been, to date, understudied. The present study evaluated spatial and temporal variations in reef fish abundance and species richness in a continuous rocky reef and adjacent unconsolidated habitats in a Southwestern Atlantic reef, using underwater techniques to assess both fish numbers and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Complexity; Distribution; Reef fishes; Reef habitats; Sandy habitats. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252011000400018 |
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| Rocha,Luiz A.; Rosa,Ierecê L.; Rosa,Ricardo S.. |
| The coral reef is an ecossystem which evokes great interest, for its beaury, species diversity and fisheries potential. The coast of Paraíba State, northeast Brazil, possesses several natural reefs and shipwrecks which are inhabited by a rich fish fauna. In order to survey the reef fish fauna of Paraíba State, a total of 118 dives, utilizing SCUBA diving techniques, were carriedoutin 27samplingpoints (depths: 0,5-66m), from February/1995 to May/1996. Specimens were collected whenever underwater identification was precluded. A total of 157 known species belonging to 59 families were found. Four unidentified species, one dasyatid, one haemulid, one scarid, and one labrid were recorded. Haemulidae was the most representative family in number of individuais,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Brazil; Paraíba; Reef fishes. |
| Ano: 1998 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751998000200017 |
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| Paiva,Andréa C. G. de; Lima,Marina F. V.; Souza,José R. B. de; Araújo,Maria E. de. |
| The objectives of the present study were to identify species of reef fish that use the Rio Formoso estuary (northeastern Brazil) as a refuge and natural nursery and to describe the spatial distribution of the estuary fish fauna in rainy and dry seasons. A total of 5475 specimens, across 78 species and 39 families, were analyzed; 51.3% of the species were of reef origin. Among these, Eucinostomus melanopterus (Bleeker, 1863), E. gula (Cuvier, 1830), and Sphoeroides testudineus (Linnaeus, 1758), in this order, were the most abundant in the upper estuary; S. greeleyi Gilbert, 1900, E. melanopterus, and Lutjanus synagris (Linnaeus, 1758) were the most abundant in the mid estuary; and E. gula and Albula vulpes (Linnaeus, 1758) in the lower estuary. The... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Connectivity; Estuary; Fish community; Reef fishes; Spatial variation. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702009000200009 |
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