Now showing items 1-4 of 4
The efficiency of sieve-panels for bycatch separation in Nephrops trawls
(Journal article; Tidsskriftartikkel; Peer reviewed, 2018-11-11)
This study investigated the efficiency of a sieve‐panel concept, intended to separate bycatch species from <i>Nephrops</i> (Norway lobster) in a trawl gear via mechanical and behavioural means. Four different designs of varying panel mesh size or inclination were tested in experimental fishing. For each design, the length‐dependent sieving efficiency, defined as the fraction of <i>Nephrops</i> or ...
When is enough, enough? Quantifying trade-offs between information quality and sampling effort for fishing gear selectivity data
(Journal article; Tidsskriftartikkel; Peer reviewed, 2018-06-21)
There is general pressure throughout the world’s fisheries for the industry to have greater involvement not only in the development of fishing gears but also in the testing and documentation of their effect. In the European Union, the Common Fisheries Policy of 2013, together with the proposed reform of the technical measures regulation, highlights the need for greater flexibility in fisheries through ...
Understanding and predicting size selection in diamond-mesh cod ends for Danish seining: a study based on sea trials and computer simulations
(Journal article; Tidsskriftartikkel; Peer reviewed, 2016-06-28)
Danish seining is an important ﬁshing method used to harvest demersal species. Knowledge about the size selectivity of different demersal species with this type of ﬁshing gear is therefore of importance for managing the exploitation of marine resources. However, there are only limited data on size selection in cod ends in this ﬁshery. Sea trials were therefore carried out to collect size selectivity ...
Investigating fish behavioural responses to LED lights in trawls and potential applications for bycatch reduction in the Nephrops-directed fishery
(Journal article; Tidsskriftartikkel; Peer reviewed, 2018-04-18)
Light-emitting diodes (LEDs) have been tested in trawl fisheries to reduce the bycatch of unwanted species through behavioural stimulation. Previous studies used LED lights to either highlight escaping routes or increase the contact rate with square-mesh panels. However, phototactic responses (moving towards or away from light sources) to LED lights could also be exploited to separate species during ...