Here you can get quick access to various reports on coral reefs status, health and threats on global, regional and national levels. Select geographic area of interest or search by source/organization.
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Search Result: 2 records
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1.
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Chin, A. (ed),
2003
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The State of the Great Barrier Reef Online.
Great Barrier Reef Marine Park Authority, Townsville. Great Barrier Reef Marine Park Authority,
Townsville. Qld. 4810, Australia.
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Author
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Chin, A. (ed)
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Year
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2003
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Title
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The State of the Great Barrier Reef Online.
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Source
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Great Barrier Reef Marine Park Authority, Townsville. Great Barrier Reef Marine Park Authority,
Townsville. Qld. 4810, Australia.
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Keywords
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monitoring, management, GBR
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Caption
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This is web site with regularly updated chapters on all specets of the state of the Great Barrier reef World Heritage Area
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Abstract
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The Great Barrier Reef is under mounting pressure. For example:
since the European settlement of Australia, the annual flow from the land of sediments and nutrients into the Great Barrier Reef has increased four fold;
since 1998, the Great Barrier Reef has suffered its two worst ever recorded coral bleaching events, caused by unusually hot sea water;
the effort in the Reef Line Fishery has doubled since 1995;
recreational fishing effort continues to increase as population increases and fishing and boating technology improves;
over the last 40 years, numbers of nesting loggerhead turtles have declined by between 50 percent and 80 percent; and
estimates of dugong populations adjacent to the urban coast of Queensland indicate that they are currently only about 3 percent of what they were in the early 1960’s.
Despite these pressures, the Great Barrier Reef is still a wonderful natural asset for Australia and the world. Many areas are still in very good condition but there is no room for complacency on the part of managers or the community. Active protection is required to ensure sustainability now and for the future.
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Online Documents
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- Copies of papers downloaded from ReefBase may be used and reproduced for non-commercial purpose only.
- If you encounter any problem viewing the PDF files, please use the latest version of Adobe Reader.
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2.
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Wachenfeld, D.R., J.K. Oliver and J.I. Morrissey (eds),
1998
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State of the Great Barrier Reef World Heritage Area 1998.
Great Barrier Reef Marine Park Authority publication.
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Author
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Wachenfeld, D.R., J.K. Oliver and J.I. Morrissey (eds)
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Year
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1998
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Title
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State of the Great Barrier Reef World Heritage Area 1998.
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Source
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Great Barrier Reef Marine Park Authority publication.
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Keywords
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MPA; monitoring assessment
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Caption
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Abstract
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The distribution and abundance of most major environmental attributes in the Great Barrier Reef World Heritage Area are fairly well known, although comprehensive species distributions are lacking for many plants and animals. Out of 12 categories used for reporting in this document, all have had extensive surveys conducted for at least part of the environmental attribute on at least one occasion. However, significant areas of uncertainty regarding basic distribution and abundance remain for many groups of organisms including macroalgae, soft corals, inter-reefal and lagoonal benthos, sea snakes and inshore dolphins.
A smaller proportion of the environmental attributes have dedicated monitoring programs that are providing increasingly valuable trend data. Together with information on patterns of human activities and impacts, these long-term records allow us to determine whether the environmental attribute is being adversely impacted by human activities, and thus whether any management action is needed. Because virtually all environmental attributes vary naturally over time, long time-series are required before definite indications of human impact can be demonstrated. As a result, for most environmental attributes, it is not possible to say with certainty if they are in a satisfactory or unsatisfactory condition.
Despite this uncertainty, the lack of any major declines and uncontrolled human pressures permits a cautiously optimistic conclusion for environmental attributes such as corals, reef fishes, seagrasses, mangroves and island plants. On the other hand, whilst there are no major adverse trends evident for water quality, macroalgae and seabirds, lack of good trend data or the presence of substantial ongoing pressures mean that the outlook is less certain, and that continued vigilance and management action are needed. The crown-of-thorns starfish presents a dilemma to managers. While a third outbreak is currently developing in the Cairns to Cooktown region, the need for widespread management action is uncertain due to ongoing uncertainty regarding the role of human impacts as causal agents. Finally, there are some categories for which the trends are not encouraging and management action is required. They include dugongs south of Cooktown, at least three species of marine turtles, and lagoonal benthos in particularly heavily trawled areas. Appropriate management action has been identified in each of these cases, and in most cases implementation has commenced.
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Online Documents
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- Copies of papers downloaded from ReefBase may be used and reproduced for non-commercial purpose only.
- If you encounter any problem viewing the PDF files, please use the latest version of Adobe Reader.
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