نتایج جستجو برای: marine coral
تعداد نتایج: 106596 فیلتر نتایج به سال:
Managing coral reefs for resilience to climate change is a popular concept but has been difficult to implement because the empirical scientific evidence has either not been evaluated or is sometimes unsupportive of theory, which leads to uncertainty when considering methods and identifying priority reefs. We asked experts and reviewed the scientific literature for guidance on the multiple physi...
Biogeological dynamics consist of a combination of community-ecological responses based on individual-species physiological tolerance limits to a dominant environmental stressor and their consequences on carbonate sedimentological properties. This interplay was investigated in coral carpet systems (biostromal coral frameworks) in the southern Arabian Gulf in Abu Dhabi and Dubai (UAE). Five cora...
Live coral is a key component of the Al Wajh marine reserve in the Red Sea. The management of this reserve is dependent on a sound understanding of the existing spatial distribution of live coral cover and the environmental factors influencing live coral at the landscape scale. This study uses remote-sensing techniques to develop ordinary least squares and spatially lagged autoregressive explan...
Predictive habitat models are increasingly being used by conservationists, researchers and governmental bodies to identify vulnerable ecosystems and species' distributions in areas that have not been sampled. However, in the deep sea, several limitations have restricted the widespread utilisation of this approach. These range from issues with the accuracy of species presences, the lack of relia...
Habitat specificity plays a pivotal role in forming community patterns in coral reef fishes, yet considerable uncertainty remains as to the extent of this selectivity, particularly among newly settled recruits. Here we quantified habitat specificity of juvenile coral reef fish at three ecological levels; algal meadows vs. coral reefs, live vs. dead coral and among different coral morphologies. ...
The reactive oxygen species superoxide (O2·-) is both beneficial and detrimental to life. Within corals, superoxide may contribute to pathogen resistance but also bleaching, the loss of essential algal symbionts. Yet, the role of superoxide in coral health and physiology is not completely understood owing to a lack of direct in situ observations. By conducting field measurements of superoxide p...
The benthic communities of the deep insular shelf at the Hind Bank marine conservation district (MCD), an important spawning aggregation site for groupers, were studied with the Seabed autonomous underwater vehicle (AUV) at depths between 32 and 54m. Four digital phototransects provided data on benthic species composition and abundance of the insular shelf off St. Thomas, US Virgin Islands. Wit...
Distinct partitioning has been observed in the composition and diversity of bacterial communities inhabiting the surface and overlying seawater of three coral species infected with black band disease (BBD) on the southern Caribbean island of Curaçao, Netherlands Antilles. PCR amplification and sequencing of bacterial 16S rRNA genes (rDNA) with universally conserved primers have identified over ...
Diazotrophs Benavides, Mar; Bednarz, Vanessa N.; Ferrier-Pagès, Christine Published in: Frontiers in Marine Science DOI: 10.3389/fmars.2017.00010 Publication date: 2017 Document Version Publisher's PDF, also known as Version of record Citation for published version (APA): Benavides, M., Bednarz, V. N., & Ferrier-Pagès, C. (2017). Diazotrophs: overlooked key players within the coral symbiosis an...
Statistical Significance of Bio Monitoring of Marine Algae for Trace Metal Levels in a Coral Environment Anu Gopinath, Nair S. Muraleedharan, Chandramohanakumar N. and Jayalakshmi K.V. 1 Department of Chemistry, St. Teresa’s College, Cochin – 682 011, India 2 Department of Chemical Oceanography, School of Marine Sciences, Cochin University of Science and Technology, Cochin – 682 016, India. 3 N...
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