Tag: Coral Reefs
This Status of Coral Reefs of the World: 2008 report is the 5th global report since the GCRMN (Global Coral Reef Monitoring Network), was formed in 1996 as an operational network of the International Coral Reef Initiative (ICRI). The catalyst for GCRMN was the inability of international agencies to report objectively on the health or otherwise of the world’s coral reefs. The US government then p...
The Reef Manager’s Guide provides information on the causes and consequences of coral bleaching, and management strategies to help local and regional reef managers reduce this threat to coral reef ecosystems. Produced by the National Oceanic and Atmospheric Administration (NOAA), the Australian Great Barrier Reef Marine Park Authority (GBRMPA), and the International Union for the Conservation ...
The marine environments of these small and predominantly mountainous islands are all threatened by similar stressors: sediment runoff from the steep volcanic slopes; rapid development, particularly from the tourism sector; nutrient pollution from inadequately treated wastes and excessive use of fertilizers; over-fishing, especially from subsistence fishers; hurricanes and storms; and particularly ...
Coral reefs of the world have effectively marked time since the last report in 2004. Some areas have recovered well after the climate change bleaching in 1998 and human damage; while the Indian Ocean tsunami, more bleaching in the Caribbean, and human pressures have slowed or reversed recovery. Estimates assembled through the expert opinions of 372 coral reef scientists and managers from 96 coun...
Les années 1998 et 2005 ont été les plus destructrices des temps modernes pour les récifs coralliens. Elles ont été également les plus chaudes du monde depuis le début de l’enregistrement des données, en 1880. Quelque 16 % des récifs mondiaux ont succombé au blanchissement en 1998 dans l’océan Indien et le Pacifique occidental. Sept ans plus tard, une élévation inhabituelle de la...
Coral reefs are tropical, shallow water ecosystems, largely restricted to the area between the latitudes 30°N and 30°S. The exact areal extent of coral reefs in the world is unknown and extremely difficult to estimate. However, Smith (1978) has produced a figure of 600 000 sq. km for reefs to a depth of 30m. Under this analysis, about 14% occur in the Caribbean Sea, 1% in the South Atlantic and...
L'action doit permettre de mobiliser l'imagerie satellitaire pour détecter les zones de blanchissement de coraux.  
L'océan qui couvre 70% de la surface terrestre est un territoire généralement inconnu et mal étudié. Les zones côtières représentent une zone de biodiversités importantes. Dans un contexte d'acidification des océans, de réchauffement climatique et de pression anthropique accrue, une méthode de cartographie précise et rapide des fonds marins permettra de pouvoir surveiller, étudier et...
The convention on Wetlands came into force for Mauritius on 30 September 2001. Mauritius has presently 2 sites designated as Wetlands of International Importance, with a surface of 379 hectares. Blue Bay Marine Park has been designated as a "Wetland of International Importanve (Ramsar Site" N° 1744 on 31st of January 2008 as per following description.../...  
  The convention on Wetlands came into force for Mauritius on 30 September 2001. Mauritius has presently 2 sites designated as Wetlands of International Importance, with a surface of 379 hectares. Blue Bay Marine Park has been designated as a "Wetland of International Importanve (Ramsar Site" N° 1744 on 31st of January 2008 as per following description.../... &nb...
This report presents the findings of an assessment of capacity building needs for the management of marine protected areas (MPAs) in the Caribbean region.  A total of 27 MPA sites in 10 countries and territories were included in the assessment, which is an initiative of NOAA Coral Reef Conservation Program (CRCP) in partnership with the Caribbean Marine Protected Area M...
  Some examples are given of remote sensingderived coral reef data, which form baseline information for the creation and management of a marine protected area (MPA) in the Red Sea. The importance of a Geographic Information System (GIS) for the collection and analysis of the different data layers is also shown. The example is given of a risk assessment ma...
  The Caribbean Sea LME is a tropical sea bounded by North America (South Florida), Central and South America and the Antilles chain of islands. The LME has a surface area of about 3.3 million km2, of which 3.89% is protected, and contains 7.09% and 1.35% of the world’s coral reefs and sea mounts, respectively (Sea Around Us 2007). The average depth is 2,200 ...
Le concept des récifs artificiels est très ancien et a été découvert et élaboré par les pêcheurs japonais, qui constataient que leur pêche était bien plus importante au voisinage d’épaves de navires ou de structures qu’ils immergeaient volontairement. Un récif artificiel peut se défini...
  Covering approximately 1.2 million km2 or 0.25% of the world maritime domain, coral reefs represent the greatest structures formed on the earth’s surface by living creatures. Although coral has existed for the past billion years, those which cover the seabed in the present day appeared in the Jurassic period (secondary era) and develop in the Atlantic, Pacific a...
  Vous avez tous pu observer le profond changement du paysage sous-marin tout autour de la Martinique… Ce phénomène est le blanchissement du corail.../...  
  Le mot “corail” éveille pour certains l’image de la douceur paisible de la vie des tropiques et de la féerie des eaux turquoises. Pour d’autres, il évoque de funestes fortunes... de mer et les naufrages de grands navires brisés sur les récifs de coraux. Pour combien d’entre-nous, ce m...
  Remote sensing has underpinned coral reef management activities for nearly four decades. The predominant role of remote sensing has been to map coastal resources as part of a marine spatial planning activity. With the advent of new, improved sources of data these maps are now more detailed and accurate than ever before. However, the boom in satellite information ...
  Although evidence suggests that the onset of worldwide coral reef degradation dates back to centuries ago, it is unequivocal that human impacts are to some degree responsible for their current frail condition (Jackson, 1997, 2001; Pandolfi et al., 2003). Reefs of the Caribbean have not escaped this global trend as studies have noted an unprecedented increase in the&nb...
  This workshop report summarises the scientific content and perspectives presented and discussed during the workshop. It provides syntheses of these perspectives for the workshop’s core topics: (i) the changing chemistry of the oceans, (ii) impacts of ocean acidification for individual organisms, and (iii) scaling up responses from individual organisms to ecosyst...
Acropora palmata and Acropora cervicornis are important framework-building corals that provide a critical structuring role on shallow caribbean reefs..../...
This paper explores the factors influencing or controlling West Indies reef fish assemblages, using an extensive underwater survey (mensurative experiment). The sampling units represented variation in substrate type, depth, and geography. For that, the distribution of coastal species assemblages was examined in different islands, from the Dominican Republic in the north to Bequia (G...
Bonaire has long been considered to have amongst the healthiest reefs of the Caribbean. However, at the 2002 Annual Meeting of Pew Fellows for Marine Conservation in Bonaire, several scientists with a long history of research on Bonaire’s coral reefs, expressed concern over the future of the island’s reefs. Specifically, they identified the decline in large predatory fish s...
Since 1980 ocean uptake of the excess CO2 released by anthropogenic activities is significant; about a third has been stored in the oceans. The rate of atmospheric CO2 increase, however, far exceeds the rate at which natural feedbacks can restore the system to normal conditions. Oceanic uptake of CO2 drives the carbonate system to lower pH and lower saturation st...
The biological diversity and productivity of coral reefs underpins the welfare of many societies throughout the world's tropical regions. Coral reefs form the foundation of dive tourism industries, support fisheries and are important to cultural traditions.They play an essential role in buffering coastal communities from storm waves and erosion, and they contain a largely untap...
This is my attempt to make a search for a coral's identification just a bit easier by trying to at least get a start within a genus, once you have an idea of what group it may be within, you can then search that genus for possible specific species at the below link.../...
This field identification guide was developed to facilitate species identification of hard corals while working in the field. It provides pictures of the shape, unique characters of each species and a short description to easily identify all 58 species occurring in Bocas del Toro. The pictures were taken 2010 – 2012 in the Archipelago of Bocas del Toro, Panama. Species n...
The Grand Cul-de-Sac Marin of Guadeloupe I s l a n d is a l a r g e bay o r i e n t a t e d t o t h e north and occupied by one of t h e most important b a r r i e r reef of t h e l e s s e r A n t i l l e s . This b a r r i e r r e e f is 30 k m l o n g a n d e n c l o s e s a lagoon of about 11000 h a . C o r a l communities have been i n v e s t i g a t e d by diving, using a semi-quantitat i v...
Knowledge of coral recruitment patterns helps us understand how reefs react following major disturbances and provides us with an early warning system for predicting future reef health problems. We have reconstructed and interpreted his-torical and modern-day recruitment patterns, using growth modeling, in order to understand how hurricanes, storms and bleaching events have influenced coral recruit...
Hurricane Hugo swept the island of Guadeloupe (French est Ilmdies) on 16 and 17 September 1989. Sustained winds were of 140 knots and gusts exceeded 160 knots. This hurricane was one of the most devastating of the century for the Lesser Antilles.../...
Since the time of Captain Cousteau, however, large areas of the world’s coral reefs have declined due to the many pressures put on them by global changes and human activities. Reefs have been damaged by destructive fishing practices, terrestrial and marine pollution, siltation from land clearing, poor agricultural practices, urban development, and, more recently, as a result ...
Coral reefs supply a wide range of important benefits to communities around the world. From the fisherman in Indonesia or Tanzania who relies on local fish to feed his family, to the scientist in Panama who investigates the medicinal potential of reefrelated compounds, reefs provide jobs, livelihoods, food, shelter, and protection for coastal communities and the shorelines along whi...

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