. Cold-water Coral Reefs: out of sight - no longer out of mind. UNEP-WCMC Biodiversity Series 22. Cold-water coral reefs. Locations of coral bycatch, by weight 0 5 10 20 50 100 500 22631 kg/25km2 Depth below sea levet 750melres Locations of reported coral bycatch caused by bottom fishing from 1986 to 29 May 2002 on federally observed groundfish vessels in Alaska- Each square on the map represents a 25 km^ area. Figure 2i: Coral bycatch data based on US federal fishery observation in the Aleutian Islands Oceana and Conservation GIS Support Center, Anchorage. AK resources were discovered on seam
. Cold-water Coral Reefs: out of sight - no longer out of mind. UNEP-WCMC Biodiversity Series 22. Cold-water coral reefs. Locations of coral bycatch, by weight 0 5 10 20 50 100 500 22631 kg/25km2 Depth below sea levet 750melres Locations of reported coral bycatch caused by bottom fishing from 1986 to 29 May 2002 on federally observed groundfish vessels in Alaska- Each square on the map represents a 25 km^ area. Figure 2i: Coral bycatch data based on US federal fishery observation in the Aleutian Islands Oceana and Conservation GIS Support Center, Anchorage. AK resources were discovered on seamounts in the North Pacific, successive waves of fisheries have swept across seamounts in the North and South Pacific, Atlantic and Indian Oceans (Koslow et al., 2000). Fishing effort has often been massive: in the years 1969 to 1975 some 18 000 trawler days were spent by the former Soviet Union fleet trawling for pelagic armorhead [Pseudopentaceros richardsoni] on a few seamounts in the southeast Emperor-northern Hawaiian Ridge system IBorets, 19751, and more than 100 Japanese and Taiwanese vessels were involved in a second wave of coral fishing on central North Pacific seamounts in 1981 for a newly discovered species of CoraH/t/m (Grigg, 19931. Seamount fisheries are particularly vulnerable to overexploitation due to their fixed and limited topographic location, and the species exploited are often particularly long lived and exhibit infrequent recruitment. As a result these fisheries are characterized by a boom and bust' cycle. After the end of the 1970s when the pelagic armorhead fishery collapsed, the locus of seamount fisheries shifted first to the southwest Pacific for orange roughy around New Zealand and Tasmania and subsequently to the Indian Ocean, North Atlantic Ridge and the southeast Atlantic off Namibia. Seamounts at tropical/subtropical latitudes have been exploited for alfonsino ISeryx IKoslow et al., 20001. The precise locations of these fisheries are often
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