TRAWL


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Related to TRAWL: trawl net
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References in periodicals archive ?
"Local government officials, commercial fishing operators, and retired police and military generals are the usual owners of bottom trawls. Municipal fishers are the least complicit in the fishing method because only those who have capital are capable of possessing trawls," he added.
In Brazil, the multispecies trawl fishing has been subject to a conflicted management process, principally regarding the large non-intentional mortality produced by the trawl nets.
Length-dependent selectivity values are estimated from the fit of a stock assessment model to trawl survey data; selectivity can be thought of as a function of the availability of all lengths in the population to the trawl gear and the efficiency with which the gear samples those available lengths (Sampson, 2014; Weinberg et al., 2016).
An assessment of by-catch reduction devices in a tropical Australian prawn trawl fishery.
This indicates that trawl fishing may give negative impact on P.
From a physiological perspective, the process of being caught in a trawl is stressful with anaerobic metabolism being activated in an attempt to maintain energy levels (Ridgway et al.
He added: "Fish being trawled will try to swim at a steady pace ahead of the mouth of the net for as long as possible, but a proportion will eventually tire and fall back into the net.
Dr Killen said: "Fish being trawled will y p as long as on will fall try to swim at a steady pace ahead of the mouth of the net for as long as possible, but a proportion will eventually tire and fall back into the net.
This project took advantage of the naturally occurring foraging behavior of bottlenose dolphins described by Svane (2005) associated with by-catch disposal from commercial shrimp trawl practices in the Mississippi Sound.
Initially, two trawl nets were used, one on each side of the vessel, but in the 80's a significant technological innovation was introduced by Korean shipowners, which consisted of using two nets on each side (Pineros & Sieguert, 1981).
The California Halibut Trawl Fishery has been variously configured since the first paranzella nets were used off Santa Cruz, California to catch fish in the early 20th century.
Detectives are conducting a CCTV trawl and seeking witnesses.