Fishermen collect Tripneustes ventricosus by skin diving with - TopicsExpress



          

Fishermen collect Tripneustes ventricosus by skin diving with mask, snorkel, and fins. They swim out from shore, singly or in pairs, with a floating log (pole) from which they suspend large net bags or sacks. Sea urchins, 7-10 cm in diameter, are scraped off the rocky bottom with a small iron rod and collected in the bags which, when full, are floated back to shore on the pole. Alternatively, sea urchins may be collected in floating wooden boxes or rafts. Fishermen may also work in teams from a boat, either a small rowboat (Moses) or a larger (-20-foot) diesel powered fishing boat (day boat). In general, fishing methods have changed very little. The face mask and fins were introduced about 15-20 years ago. Although scuba is now available (and used by some spear fishermen) it is not used in the collection of sea urchins. The increasing scarcity of sea urchins has resulted in a greater dependence on boats for fishing remote populations in areas of heavy wave action. In the past many sea urchins were collected in shallow near shore areas by wading with net bags or rafts. youtube/watch?v=XEvF_fwdJJw
Posted on: Sat, 02 Nov 2013 23:18:01 +0000

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