نتایج جستجو برای: coral reefs

تعداد نتایج: 17805  

2017
M. Dorenbosch M. G. G. Grol M. J. A. Christianen I. Nagelkerken G. van der Velde

There is a long-standing debate whether mangrove and seagrass habitats in the IndoPacific region function as nurseries for coral reef fishes. We studied the use of all major shallow-water habitat types by juvenile coral reef fish using visual census surveys at 4 islands along the Tanzanian coast (East Africa) and at the island of Grande Comoros (Comoros archipelago). We investigated the value o...

Journal: :Science 2015
Mark D Spalding Barbara E Brown

Coral reefs are highly dynamic ecosystems that are regularly exposed to natural perturbations. Human activities have increased the range, intensity, and frequency of disturbance to reefs. Threats such as overfishing and pollution are being compounded by climate change, notably warming and ocean acidification. Elevated temperatures are driving increasingly frequent bleaching events that can lead...

2015
Zarinah Waheed Harald G. J. van Mil Muhammad Ali Syed Hussein Robecca Jumin Bobita Golam Ahad Bert W. Hoeksema Vincent Laudet

The coral reefs at the northernmost tip of Sabah, Borneo will be established under a marine protected area: the Tun Mustapha Park (TMP) by the end of 2015. This area is a passage where the Sulu Sea meets the South China Sea and it is situated at the border of the area of maximum marine biodiversity, the Coral Triangle. The TMP includes fringing and patch reefs established on a relatively shallo...

Journal: :PeerJ 2016
Uri Obolski Lilach Hadany Avigdor Abelson

Counteracting the worldwide trend of coral reef degeneration is a major challenge for the scientific community. A crucial management approach to minimizing stress effects on healthy reefs and helping the recovery of disturbed reefs is reef protection. However, the current rapid decline of the world's reefs suggests that protection might be insufficient as a viable stand-alone management approac...

2008
Heidi sCHuttenberg

This volume documents the severe consequences that climate change is predicted to have for coral reefs worldwide. While there are expected to be many impacts on coral reefs from climate change, the most immediate and dramatic are associated with rising sea temperatures and resultant mass coral bleaching events. These events have already been responsible for long-term damage to more than 16% of ...

2010
Roberto Villaça Fábio B. Pitombo

. Abstract: The benthic communities of fringing and mushroom-shaped shalIow-water reefs of the Abrolhos region (southern coast of Bahia) were surveyed. Line transects were used to estimate coral and alga1 percentage cover. Mussismilia braziliensis is the most conspicuous coral species in the majority of the communities surveyed, but turf algae make up the dominant cover in alI but one studied r...

2006
Hector M. Guzman Jorge Cortés

For over 20 years the El Niño-Southern Oscillation (ENSO) has caused damage to the coral reefs of the eastern PaciWc and other regions. In the mid-1980s scientists estimated that coral cover was reduced by 50–100% in several countries across the region. Almost 20 years (2002) after the 1982–1983 event, we assessed the recovery of the virtually destroyed reefs at Cocos Island (Costa Rica), previ...

2018
Tyler D. Eddy William W.L. Cheung John F. Bruno

Coral reefs are important habitats that represent global marine biodiversity hotspots and provide important benefits to people in many tropical regions. However, coral reefs are becoming increasingly threatened by climate change, overfishing, habitat destruction, and pollution. Historical baselines of coral cover are important to understand how much coral cover has been lost, e.g., to avoid the...

Journal: :Marine environmental research 2014
C Sheridan J M Baele A Kushmaro Y Fréjaville I Eeckhaut

Terrestrial runoff and sedimentation have been implicated in a variety of impacts on scleractinian corals. However, despite accumulating evidence, little work has been done to investigate their influence on coral disease development. This study examined the role that river runoff and the associated sedimentation could play in affecting the prevalence of the coral disease "white syndrome" in SW ...

2008
Marlin J. Atkinson Pascale Cuet

This paper is a short review of recent literature on how ocean acidification may influence coral reef organisms and coral reef communities. We argue that it is unclear as to how, and to what extent, ocean acidification will influence calcium carbonate calcification and dissolution, and affect changes in community structure of present-day coral reefs. It is critical to evaluate the extent to whi...

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