Mapeamento dos geohabitats da plataforma continental de Tamandaré-PE
The Tamandaré-PE continental shelf, in the eastern Brazilian coast, is narrow (35 km), shallow with shelf break at 90 m water depth, has mixed carbonate and siliciclastic sedimentation and widespread occurrence of ridges and patch reefs. The habitat mapping was carried out using an interferometri...
Na minha lista:
| Autor principal: | |
|---|---|
| Outros Autores: | |
| Formato: | Dissertação |
| Idioma: | por |
| Publicado em: |
Brasil
|
| Assuntos: | |
| Endereço do item: | https://repositorio.ufrn.br/jspui/handle/123456789/25977 |
| Tags: |
Adicionar Tag
Sem tags, seja o primeiro a adicionar uma tag!
|
| Resumo: | The Tamandaré-PE continental shelf, in the eastern Brazilian coast, is narrow (35 km), shallow
with shelf break at 90 m water depth, has mixed carbonate and siliciclastic sedimentation and
widespread occurrence of ridges and patch reefs. The habitat mapping was carried out using an
interferometric swath system (EdgeTech 4600), digital processing of Landsat 8 image, surficial
sediment samples and underwater videos to identify sedimentary cover zones and reef fields.
Seven acoustic backscatter patterns represent hard-substrate habitats associated biogenic reefs
(P1, P2 and P3) and soft sediment habitats where muddy to gravelly substrates develop (P4, P5,
P6 and P7). Reefs attached to the Tamandaré Bay and coast have more complex relief with
average of 4 m high with steep flanks and caves, reaching 10 m height in the seaward flanks. A
second reef field, the Carapitanga Reef, has lower relief with average height of 2 m, but with
knolls up to 6 m high, and depicts an advanced bioerosion stage. A muddy body occurs in
between reef fields and into paleochannels, where there are large shrimp fishing activities. |
|---|