Miscellaneous Mollusc Resources of Pacific Islands
SPC/lnshore Fish. Res./WP2 29 February 1988 ORIGINAL : ENGLISH ( Noumea, New Caledonia, 14-25 March 1988) HISCELLANEOUS MOLLUSC RESOURCES OF PACIFIC ISLANDS BY Dr A.D. Lewis Introduction l Molluscs (Phylum Molluscs) we a diverse array of "shellfish", which include bivalves (clams, cockles, oysters, mussels - Class Pelecypoda) ,gastropods ( snails, abalone, seahares- Class Gastropods) and cephalopods (squids, octopus, cuttlefish - Class Cephalopoda). These support large marine fisheries, world landings of molluscs exceeding 6 millions tonnes in 1985 (Anon, 1987) and dominated by cephalopods ( 1.67 million mt,), clams, cockles and arkshells ( 1.6 1 million mt.) and oysters ( 1.03 million mt). 2. Previous sessions at the workshop have considered in detail the molluscs of major commercial importance to Pacific Islands. This include molluscs harvested primarily for Industrial purposes (eg. trochus, green snail and pearl shell, for their nacreous shell interiors) as well as those harvested primarily for human consumption (giant clams). 3. There is in addition, however a wide range of molluscs harvested throughout the Pacific Islands for subsistence purposes and in some cases small scale commercial exploitation. Many are gleaned from a variety of inshore habitats, including mud flats, mangrove roots, sandy beaches, reef flats and rubble areas. These molluscs are commonly collected by women, and have traditionally served as important reserve food sources during times of bad weather or poor line fishing. In (tensely populated atolls, they may become a primary fooAsource, Zann ( 1985) noting that in South Tarawa (Kiribati), landings of three lagoon bivalves exceed that of all finfish combined. 4. Othermoreactivemolluscsaretakenwithluresorbaits(cephalopoda).whilstothers are trawled (scallops).
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