Definition of priority areas for the conservation of a coastal reef complex in the eastern Brazilian coast
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| Natura: | Artículo científico |
| Lingua: | en |
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Associação Portuguesa dos Recursos Hídricos
2014
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| _version_ | 1876465229958742016 |
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| author | Miguel Loiola |
| author_facet | Miguel Loiola |
| contents | Definition of priority areas for the conservation of a coastal reef complex in the eastern Brazilian coast Miguel Loiola Igor C. S Cruz Zelinda M. A. N. Leão Ruy K. P. Kikuchi Ciencias de la Tierra No Coral reefs taken zones Reef degradation Conservation plan Coral reef integrity is currently threatened by natural and human activity. The reefs of the eastern Brazilian coast, which stand out as the largest and richest of the South Atlantic Ocean, are not an exception. Tourism exploitation, destructive fishing practices, increased pollution and uncontrolled coastal development are the major human impacts on reefs. The creation of new no-taken zones (NTZs) has thus become an urgent issue because NTZs represent the best measure to guarantee the conservation of reef ecosystems, which are considered biodiversity hotspots. The objective of this work was to define priority areas for implementing NTZs in a coastal reef complex located on the eastern Brazilian coast (southern coast of Bahia State, in the Tinharé Archipelago), which is within an environmental protection area (Tinharé and Boipeba Islands State Environmental Protection Area [‘Área de Proteção Ambiental Estadual das Ilhas de Tinharé e Boipeba’]). Here we performed a detailed ecological survey of the benthic community in a set of coastal reefs and calculated quantitative conservation priority indices (CPIs) based on ecological attributes associated with the cover of key benthic organisms (corals, macroalgae, filamentous algae, branching and encrusting calcareous algae, sponges and zoanthids) and quantitative indices related to coral species richness and the mean age of the reefs in question. Five coral reefs were classified as high priority for conservation. The large spatial extent of the adjacent fringing reefs of the islands of Tinharé and Boipeba justifies the creation of two rectangular NTZs. We recommend therefore the implementation of two 12 km2 areas spanning two reefs considered of high conservation priority located on the island of Tinharé (“Boca da Barra Norte and Sul”) and one reef located on the island of Boipeba (“Ponta dos Castelhanos”). With this design, two of the reefs that were classified as high priority for conservation, “Piscinas de Moreré” and “Tassimirim” (Boipeba), which are extensively used by local populations (for fishing and tourism), would not be covered by the NTZs. The effectiveness of the conservation of these ecosystems also depends on popular acceptance and participation and on combating destructive anthropogenic activities in the region, which include destructive fishing practices and exploratory tourism. 2014 artículo científico 1646-8872 https://www.redalyc.org/articulo.oa?id=388340109008 en http://www.redalyc.org/revista.oa?id=3883 Revista de Gestão Costeira Integrada - Journal of Integrated Coastal Zone Management application/pdf Associação Portuguesa dos Recursos Hídricos Revista de Gestão Costeira Integrada - Journal of Integrated Coastal Zone Management (Portugal) Num.4 Vol.14 |
| format | Artículo científico |
| id | redalyc_388340109008 |
| institution | Redalyc |
| language | en |
| publishDate | 2014 |
| publisher | Associação Portuguesa dos Recursos Hídricos |
| spellingShingle | Definition of priority areas for the conservation of a coastal reef complex in the eastern Brazilian coast Miguel Loiola Ciencias de la Tierra No Coral reefs taken zones Reef degradation Conservation plan Definition of priority areas for the conservation of a coastal reef complex in the eastern Brazilian coast Miguel Loiola Igor C. S Cruz Zelinda M. A. N. Leão Ruy K. P. Kikuchi Ciencias de la Tierra No Coral reefs taken zones Reef degradation Conservation plan Coral reef integrity is currently threatened by natural and human activity. The reefs of the eastern Brazilian coast, which stand out as the largest and richest of the South Atlantic Ocean, are not an exception. Tourism exploitation, destructive fishing practices, increased pollution and uncontrolled coastal development are the major human impacts on reefs. The creation of new no-taken zones (NTZs) has thus become an urgent issue because NTZs represent the best measure to guarantee the conservation of reef ecosystems, which are considered biodiversity hotspots. The objective of this work was to define priority areas for implementing NTZs in a coastal reef complex located on the eastern Brazilian coast (southern coast of Bahia State, in the Tinharé Archipelago), which is within an environmental protection area (Tinharé and Boipeba Islands State Environmental Protection Area [‘Área de Proteção Ambiental Estadual das Ilhas de Tinharé e Boipeba’]). Here we performed a detailed ecological survey of the benthic community in a set of coastal reefs and calculated quantitative conservation priority indices (CPIs) based on ecological attributes associated with the cover of key benthic organisms (corals, macroalgae, filamentous algae, branching and encrusting calcareous algae, sponges and zoanthids) and quantitative indices related to coral species richness and the mean age of the reefs in question. Five coral reefs were classified as high priority for conservation. The large spatial extent of the adjacent fringing reefs of the islands of Tinharé and Boipeba justifies the creation of two rectangular NTZs. We recommend therefore the implementation of two 12 km2 areas spanning two reefs considered of high conservation priority located on the island of Tinharé (“Boca da Barra Norte and Sul”) and one reef located on the island of Boipeba (“Ponta dos Castelhanos”). With this design, two of the reefs that were classified as high priority for conservation, “Piscinas de Moreré” and “Tassimirim” (Boipeba), which are extensively used by local populations (for fishing and tourism), would not be covered by the NTZs. The effectiveness of the conservation of these ecosystems also depends on popular acceptance and participation and on combating destructive anthropogenic activities in the region, which include destructive fishing practices and exploratory tourism. 2014 artículo científico 1646-8872 https://www.redalyc.org/articulo.oa?id=388340109008 en http://www.redalyc.org/revista.oa?id=3883 Revista de Gestão Costeira Integrada - Journal of Integrated Coastal Zone Management application/pdf Associação Portuguesa dos Recursos Hídricos Revista de Gestão Costeira Integrada - Journal of Integrated Coastal Zone Management (Portugal) Num.4 Vol.14 |
| title | Definition of priority areas for the conservation of a coastal reef complex in the eastern Brazilian coast |
| topic | Ciencias de la Tierra No Coral reefs taken zones Reef degradation Conservation plan |
| url | https://www.redalyc.org/articulo.oa?id=388340109008 |