Keyword
Oceans | Marine Biology | Marine Habitat
5 record(s)
Type of resources
Topics
Keywords
Contact for the resource
Provided by
Years
Representation types
Update frequencies
Status
draft
-
This dataset shows the global distribution of coral reefs in tropical and subtropical regions. It is the most comprehensive global dataset of warm-water coral reefs to date, acting as a foundation baseline map for future, more detailed, work. This dataset was compiled from a number of sources by UNEP World Conservation Monitoring Centre (UNEP-WCMC) and the WorldFish Centre, in collaboration with WRI (World Resources Institute) and TNC (The Nature Conservancy). Data sources include the Millennium Coral Reef Mapping Project (IMaRS-USF and IRD 2005, IMaRS-USF 2005) and the World Atlas of Coral Reefs (Spalding et al. 2001). Purpose IMaRS-USF was funded by the Oceanography Program of NASA (National Aeronautics and Space Administration) to provide an exhaustive worlwide inventory of coral reefs using high-resolution satellite imagery, under the framework of the Millenium Coral Reef Mapping Project. As a fully validated Millennium Coral Reef Mapping Project product was not available at the global scale, there was a need to create an 'interim' global amalgamated map product. The dataset was hence created to further mobilise the Millennium Coral Reef Mapping Project products and their validation.
-
This dataset shows the global distribution of seagrasses, and is composed of two subsets of point and polygon occurence data. The data were compiled by UNEP World Conservation Monitoring Centre in collaboration with Dr Frederick T. Short (University of New Hampshire, USA).
-
This dataset shows the global distribution of seagrasses, and is composed of two subsets of point and polygon occurrence data. The data were compiled by UNEP World Conservation Monitoring Centre in collaboration with Dr Frederick T. Short (University of New Hampshire, USA). The boundaries do not represent actual ranges as seagrass are distributed in waters shallow enough for sunlight to penetrate. No surface area calculations should be attempted.
-
This dataset shows the global distribution of mangroves. It was compiled by UNEP World Conservation Monitoring Centre (UNEP-WCMC) in collaboration with the International Society for Mangrove Ecosystems (ISME). The factsheet providing background information relevant to this dataset can be found at http://biodiversitya-z.org/content/mangrove--2. temporal range 1960-1996 The factsheet providing background information relevant to this dataset can be found at http://biodiversitya-z.org/content/mangrove--2.
-
The Flinders Commonwealth Marine Reserve (CMR) survey was a pilot study undertaken in August 2012 as part of the National Marine Biodiversity Hub's National monitoring evaluation and reporting theme. The aim of this theme is to develop a bluepint for the sustained monitoring of the South-east CMR Network. The particular aims of the survey were twofold; 1) to contribute to an inventory of demersal and epibenthic conservation values in the reserve and 2) to test methodologies and deployment strategies in order to inform future survey design efforts. Several gear types were deployed; including multibeam sonar, shallow-water (less than 150m) Baited Remote Underwater Video Systems (BRUVS), deep- water BRUVS (to 600 m), towed video and digital stereo stills. This resource contains the video and stereo still image data collected using a towed system (towed stereo camera system - TSCS). The TSCS was deployed using a probabalistic and spatially balanced survey design called Generalized Random Tessellation Stratified (GRTS). Habitats on the shelf were identified in a previous multibeam survey and consisted of 'mixed reef' (containing patchy reef) and sand. Mixed reef habitat was targeted in this survey (9 GRTS mixed reef sites versus 3 sand sites). Two roughly perpendicular TSCS tows were performed in each of those shelf GRTS sites. On the slope, down-slope (150-500 m depth) transect sites were classified by proportion of hard, soft and mixed bottom types based on multi-beam sonar (MBS) backscatter data. Transects with higher proportion of hard substrates were chosen using a GRTS approach. 7 transects were completed in the Flinders CMR, 5 transects in the adjacent Cape Barren Fisheries closure and two targeted transects were completed in a canyon to the north, where large coral bycatch had been reported from fisheries.