This is the fourth of five videos following the Lady Hamilton of Helford on 8th October, skippered by Chris Bean, crewed by Chino and Andreas.
Following the clearing of the 'haddock' gill nets (3rd video) Lady Hamilton returned to the red mullet nets, which also included one sea cucumber, pollack, streaked gurnard, cuckoo wrasse, and lesser spotted dogfish. A notable difference from the November 2010 trips - see two earlier videos - with the CEFAS research derogation to use otherwise illegal larger mesh sizes up to 80mm, was the absence of cod and lower abundance of striped red mullet. The CEFAS red mullet net selectivity research of the experimental Lady Hamilton late 2010 red mullet netting makes three interesting points. First, use of larger mesh nets (currently illegal between 70-90 mm) up to 80 mm revealed more larger red mullet than caught in the standard 68 mm nets (as used today), raising the question of whether there is, in effect, a 'refuge' for larger red mullet. Second, species like cod were being caught by entanglement rather than gilling; indeed the smallest cod were caught predominantly in the larger (80 mm) mesh net. Third, CEFAS believed the survival rate of fish that could not be retained, as a result of various regulations, would be high, because of the short soak time and shallow depth of the water. The ICES 2012 Advice for red mullet has weak data and is geographically generic. It reports increasing landings in many areas, some evidence of higher recruitment in the early 2000s, and weaker catches since 2007 (reported by the UK beam trawl fleet survey). Lady Hamilton has also experienced lower catches in recent years.
Негізгі бет FH214 Lady Hamilton Chris Bean demonstrates 68mm red mullet gill nets: Pisces-rfr
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