Abstract: Bait for attracting crustaceans and non-crustaceans which are caught in trap fishery. The bait includes a pelletized carrier composed of ingredients intended for long life in sea water. The pelletized carrier is mixed with specific attractants depending on the desired catch and a fish oil is added to coat the pellets and attractant and to allow for the timed release of the attractant. In experiments to date, it has been found that the use of the pelletized carrier and attractant together with the fish oil coating has been effective as a bait in attracting catch and has an extended life within the traps.

Abstract: Bait for attracting crustaceans, particularly lobster. The bait includes a pelletized carrier composed of ingredients intended for long life in sea water. The pelletized carrier is mixed with specific crustacean attractants and a fish oil is added to coat the pellets and attractant and to allow for the timed release of the attractant. In experiments to date, it has been found that the use of the pelletized carrier and attractant together with the fish oil coating has been effective as a bait in attracting lobsters and has an extended life within lobster traps.

Abstract: Bait for attracting crustaceans and non-crustaceans which are caught in trap fishery. The bait includes a pelletized carrier composed of ingredients intended for long life in sea water. The pelletized carrier is mixed with specific attractants depending on the desired catch and a fish oil is added to coat the pellets and attractant and to allow for the timed release of the attractant. In experiments to date, it has been found that the use of the pelletized carrier and attractant together with the fish oil coating has been effective as a bait in attracting catch and has an extended life within the traps.

Abstract: Method and apparatus for reducing or eliminating the contamination by algae or phytoplankton in a fish farm (100). A series of tarpaulins (112) are suspended from buoyant members (103) which support the netting (102) of the farm (100). The tarpaulins (112) are connected at their lowermost ends (115) to a movable series of horizontal booms (122) that may take on air for positive buoyancy or which may displace the air with water for negative buoyancy. The booms (122) reciprocate on generally vertically oriented spars (113) which are maintained in position using anchors (104) and stays (111). As the booms (122) are raised or lowered, the tarpaulins (112) are similarly raised or lowered to allow or prevent algae from entering the farm (100). A water pipe (200) is maintained in position within each cage (101). Air is injected into the water pipe (200) from a compressor (214). The injected air initiates water flow upwardly within the water pipe (200).