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- Title
Differences in the distribution and abundance of Teredinidae (Mollusca: Bivalvia) along the coast of Rio de Janeiro state, Brazil.
- Authors
Maldonado, Gustavo Carvalho; Skinner, Luis Felipe
- Abstract
Teredinidae are wood-boring mollusks found in marine and estuarine regions. Evaluation of the distribution and abundance of Teredinidae is a very important task, as the impact of the destruction of wood in man-made structures is still underestimated, mainly in tropical regions. It is also know that temperature and salinity are key factors afecting the abundance and activity of Teredinidae due to their efects on the physiological responses of Teredinidae. The aim of this study was to evaluate the distribution and abundance of Teredinidae along the Rio de Janeiro coast according to temperature range and pattern. Artiicial pine collectors were used and remained immersed for three months in four regions at 14 sites. We recorded seven species of Teredinidae, identiied according to their pallets. Ilha Grande Bay was the region with the highest density and species richness, and the region with the lowest was Guanabara Bay. One gradient of abundance related to temperature was found. The most abundant species were Lyrodus loridanus and Teredo furcifera. Besides temperature, wood availability among regions was another important factor. For the irst time, we recorded the occurrence of Bankia destructa on the Rio de Janeiro coast, but this record does not indicate any species introduction or expanding distribution range.
- Subjects
GEOGRAPHICAL distribution of mollusks; MOLLUSKS; WOOD borers; WOOD-decaying fungi; SHIPWORMS; MARINE borers
- Publication
Brazilian Journal of Oceanography, 2016, Vol 64, Issue 4, p375
- ISSN
1679-8759
- Publication type
Article
- DOI
10.1590/S1679-87592016127806404