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List of 22 records

1

1. Threats Natural: Australia and Papua New Guinea, Australia. Crown of Thorns Starfish...
The distribution of crown-of-thorns starfish on the Great Barrier Reef (GBR) has been monitored regularly using two different and complementary methods: the long-term monitoring program supported by the Australian Institute of Marine Science (AIMS) a...


2. Threats Natural: Australia and Papua New Guinea, Australia. ...
Until recently, it has been assumed that disease has had little impact on the population dynamics or community structure of coral assemblages on the Great Barrier Reef (GBR). However, the presence of a number of pathogens on the Great Barrier Reef th...


3. Threats Natural: Micronesia, American Samoa. ...
Minimal signs of coral disease were found at 11 sites during surveys around Tutuila, American Samoa in 2004. The most common diseases were Acroporid White Syndrome (prevalence ranging from 0-1.1%), Acroporid growth anomalies (prevalence ranging from ...


4. Threats Natural: Micronesia, American Samoa. ...
Coral reefs on the islands of Kaua’i, Moloka’i, Maui, Hawai’i and O’ahu were surveyed for the presence and impact of invasive algae, invertebrate, and fish species along 41 sites. Only 26 invasives comprised of 3 species of algae, 19 invertebrates, a...


5. Threats Natural: Australia and Papua New Guinea, Australia. ...
COTS continue to be the major source of coral mortality on the GBR, and currently there is a wave of outbreaks on reefs in the central GBR that originated in the Cairns section, and has ‘drifted’ slowly south through the GBR reef complex since 1992. ...


6. Threats Natural: Australia and Papua New Guinea, Australia. ...
Coral disease is an emerging issue, although the high levels of disease seen in 2002 have not persisted, and mortality from disease is generally low....


7. Threats Natural: Australia and Papua New Guinea, Australia. ...
MASS CORAL MORTALITY INDUCEMASS INDUCED BY CORAL SPAWN ON NINGALOO REEF Many coral species spawn simultaneously, within a few hours or a few days each year. This maximises the chance of fertilisation and also reduces the loss to consumers. However, ...


8. Threats Natural: Micronesia, American Samoa. ...
A major COTS outbreak that peaked in 1978 resulted in large losses of coral populations, but has not recurred....


9. Threats Natural: Micronesia, American Samoa. ...
During bleaching episodes in 2002 and 2003, formerly rare coral diseases were commonly seen (Figure 11.3B,CUSReef_2005_Figure_209.gif2). At present, there is a lack of consistent descriptive terminology for Pacific coral diseases, but what has been o...


10. Threats Natural: Micronesia, American Samoa. ...
Although Pago Pago Harbor has been a major shipping port for over 50 years, a recent survey of introduced marine species found that relatively few alien species have propagated in the Territory, with most being restricted to the inner portions of the...


11. Threats Natural: Micronesia, American Samoa. ...
Other events impacting the marine environment of American Samoa during this time were a major crown-of-thorns outbreak in 1978, a series of cyclones, and a series of mass coral bleaching events. The crown-of-thorns outbreak would not have affected so...


12. Threats Natural: Micronesia, American Samoa. ...
Status Of Coral Reef Benthos: 2008 Coral communities in American Samoa have been exposed to an extensive series of major disturbances including: a COTS outbreak in 1978 which killed many corals except on the reef crest; major hurricanes in 1987, 19...


13. Threats Natural: Australia and Papua New Guinea, Australia. ...
Western Australia -Other pressures include fishing (recreational, commercial and illegal foreign fishing), major resource development (including ports), pollution, localised recreational use, coral bleaching, and outbreaks of the coral eating snail...


14. Threats Natural: Australia and Papua New Guinea, Australia. ...
Great Barrier Reef: Coral cover on the GBR is greatly affected by disturbances such as cyclones and outbreaks of COTS (Acanthaster planci) and, to a lesser extent, by coral bleaching and disease. The GBR appears to be in a period of recovery and g...


15. Threats Natural: Australia and Papua New Guinea, Australia. ...
The Dampier Archipelagocontains coral communities that are subject to many human stresses. The mining towns of Dampier and Karratha have the highest per capita boat ownership in WA along with rapid industrialisation, including a major dredging projec...


16. Threats Natural: Australia and Papua New Guinea, Australia. ...
Between the mid-1980s and 1990s Ningaloo Reef was severely damaged by outbreaks of the coral eating snail, Drupella cornus, with coral mortality approaching 100% in some locations. DEC surveyed Drupella density and benthic reef communities (including...


17. Threats Natural: Eastern Caribbean, Antigua and Barbuda. ...
There was high cover of fleshy (Dictyota, Lobophora) and calcareous (Halimeda) macro-algae, ranging from 9-58% (mean of 33.3% ± 16.4). Other dominant groups included turf (31.5% ± 12.7), crustose corallines (6.2% ± 6.8) and cyanobacteria (5.8% ± 7.3)...


18. Threats Natural: Eastern Caribbean, Antigua and Barbuda. ...
Average recent mortality was 1.1% (± 0.9), which is lower than the regional average (2.6%) from >800 sites in the AGRRA database. However, this was nearly double the 0.6% value recorded in 2005. Only 1.1% of colonies showed any disease, with yellow b...


19. Threats Natural: Eastern Caribbean, Antigua and Barbuda. ...
Stresses causing the largest impacts on coral health are: macro-algal, cyanobacterial, and sponge competition; coral diseases; and sedimentation/nutrients. Algal overgrowth of shallow water corals by Caulerpa, Lobophora, Dictyota, Halimeda and the cy...


20. Threats Natural: Micronesia, American Samoa. ...
Coral disease is emerging as a problem in the Indo-Pacific, and two studies have documented levels of coral disease present in American Samoa. In one study, diseases were surveyed initially in June 2004 (austral winter) at seven sites around Tutuila ...


21. Threats Natural: Micronesia, American Samoa. ...
A study of introduced marine species in American Samoa did not reveal any that were considered invasive or threatening (21472Coles et al., 20031)....


22. Threats Natural: Micronesia, American Samoa. ...
Reef Assessment and Monitoring Program of the Coral Reef Ecosystem Division (PIFSC-CRED) This program records benthic data on each island in American Samoa biannually, starting in 2002 and with increasing numbers of sites over the years (a total of...


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