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Commercial sponge survey in Kiribati and sponge farming development in the South Pacific









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    Project
    Pohnpei commercial sponge survey
    SOUTH PACIFIC AQUACULTURE DEVELOPMENT PROJECT
    1990
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    The survey of the Pohnpei reef system for commercial sponges started on September 4, 1988 and finished on October 16, 1988. Only one species of commercial sponge, Spongia officianalis, was observed during the survey period. It was found, in varying quantities, at 28 sites. At 14 sites, there were no commercial sponges observed during the survey dives. There were no concentrations, sufficient to support economic harvesting of commercial sponges, observed at any of the surveyed sites. There seems to be no relationship between the distance from the one known sponge bed and the number of commercial sponges observed, however, more sponges are observed to the west, or down the surface current, from this known sponge bed. There seems to be no relationship between geographical and/or oceanographical features and sponge growing areas as sponges were found, in widely varying quantities, all around the Island. Many of the sites surveyed appeared to be suitable for establishing commercial sponge f arms, even some sites where there were no commercial sponges observed. These sites have been so noted in the specific site reports. However, unless indicated otherwise, the suitability rating applies only to the actual area surveyed as shown on the attached maps. A summary listing of each site follows:
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    SponGES WP6: Threats and impacts to sponge grounds 2018
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    This fact sheet provides information on the Objectives and activities of Work Programme 6 of the SponGES project: Threats and impacts to sponge grounds. Considering diverse anthropogenic stressors acting on the deep sea and the vulnerability of deep-sea sponges to human disturbance, it is urgent to understand the full scale of human impacts on these ecosystems, and how they interact with each other. Such information is essential to respond to international regulations such as the UNGA Resolution 61/105 for the protection of vulnerable marine ecosystems from destructive fishing practices and for identifying indicators of Good Environmental Status for seafloor integrity of the Marine Strategy Framework Directive.
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