|
|
|
|
|
| Hayes, R.L.; Goreau, T.J.; McClanahan, T.R.. |
| Large-scale coral bleaching has happened repeatedly in the Pacific and Indian oceans and the Caribbean since 1982. Previously it was observed only on a small scale (Williams and Bunkley- Williams 1990;Jokiel & Coles 1990; Glynn 1988, 1991; Goreau et al. 1993; Goreau & Hayes 1994, 1995). The 1998 bleaching event was globally the most extensive such event recorded except in the Caribbean and Central Pacific where a comparison of year-byyear temperature and bleaching maps show that it was comparable with the largest previous events (T.G. et al., unpublished data). Global analyses of coral bleaching are rare, but critical to an understanding of the widespread ecological effect of bleaching events. |
| Tipo: Journal Contribution |
Palavras-chave: Coral reefs. |
| Ano: 2000 |
URL: http://hdl.handle.net/1834/416 |
| |
|
|
| McClanahan, T.R.. |
| In the central Pacific and western Australia the coral-eating snail Drupella cornus has been reported to exhibit large population increases or 'outbreaks' (>10 snails/m2) that result in the loss or devastation of their coral prey. In Kenya, a large population increase of Drupella cornus was recorded from the early 1990's where D. cornus increased from a rare species in the mid 1980's to among the most common prosobranch snail by 1995 (~0.2 snails/m2). Population increases were most commonly observed in a section of reef that had experienced heavy fishing and loss of the durophagous predators such as triggerfish, but still maintained a high abundance of the branching coral Porites nigrescens. In unfished reefs, the population increases of D. cornus were... |
| Tipo: Proceedings Paper |
Palavras-chave: Coral reefs. |
| Ano: 1997 |
URL: http://hdl.handle.net/1834/634 |
| |
|
|
| Maina, J.; Muthiga, N.; McClanahan, T.R.. |
| The Kenyan coastline is approximately 500 km long, and stretches from 1° 42’ S to 4° 40’ S bordering Somalia in the North and Tanzania in the south (Fig. 1). It has a well-developed fringing reef system. The major oceanographic currents largely drive patterns of coastal currents. South of Malindi, the East African coastal current flows northeast throughout the year coming up from Tanzania and originally driven by the south equatorial current.... |
| Tipo: Report |
Palavras-chave: Marine parks. |
| Ano: 2003 |
URL: http://hdl.handle.net/1834/848 |
| |
|
|
| Cros, A.; McClanahan, T.R.. |
| Two coral species, Porites palmata and Porites lutea, were transplanted into three distinct management areas adjacent to the Mombasa Marine National Park, Kenya: A no-fishing MPA; a gear-restricted reserve with no beach seining; and a reserve with beach seining. Corallivory by fish or breakage by fishing gear was measured over a 57-day period. Porites palmata, the branching species, was more susceptible to disturbance than Porites lutea, the massive species, which showed no difference in mortality rate between the three management areas. Porites palmata was affected more by corallivory than fishing gear and, therefore, suffered more damage from coral predators in the no-fishing MPA. Corals transplanted into the gearrestricted fishing site had the highest... |
| Tipo: Journal Contribution |
Palavras-chave: Marine parks; Coral reefs. |
| Ano: 2003 |
URL: http://hdl.handle.net/1834/961 |
| |
|
|
| McClanahan, T.R.; Mangi, S.. |
| The 1998 interaction between the El Niño and the Indian Ocean dipole produced one of the warmest years in recent records (McPhaden, 1999; Saji, 1999; Webster et al., 1999) and is reported to have caused extensive coral bleaching and mortality throughout the western Indian Ocean (Strong et al., 1998; Goreau et al., 1999; Wilkinson et al., 1999). Previous observations of coral bleaching in Kenya were recorded in 1987 and 1994 with the 1987 event causing significant mortality in corals and other benthic invertebrates (McClanahan, unpublished data and observations). The East African coast has a strong seasonal cycle and these bleaching events occurred at the end of the warm north-east monsoon, usually beginning in March, during the local annual peak of solar... |
| Tipo: Preprint |
Palavras-chave: Coral reefs; El Nino phenomena; Algae. |
| Ano: 2001 |
URL: http://hdl.handle.net/1834/482 |
| |
|
|
|
