English
norskBlar i forfatter "Virgili, Massimo"
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Assessment of the Relative Catch Performance of a Surrounding Net without the Purse Line as an Alternative to a Traditional Boat Seine in Small-Scale Fisheries
(Journal article; Tidsskriftartikkel; Peer reviewed, 2016-03-30)The catch performance of a traditional Ligurian boat seine, which is not in line with the European Union regulation, was compared with an experimental surrounding net without the purse line as a potential legal alternative. The relative catch performance between the two gear types was assessed using a new catch comparison method requiring neither paired data collection nor equal number of hauls with ... -
Dredge selectivity in a Mediterranean striped venus clam (Chamelea gallina) fishery
(Journal article; Tidsskriftartikkel; Peer reviewed, 2021-02-15)The striped venus clam Chamelea gallina is the target of a large fleet of hydraulic dredgers, which represent an important fishing sector in terms of income and landings in the Mediterranean Sea. Although there is information on the catch rates, impact and discards related to this fishery, the size selection process carried out by the dredge during trawl under commercial conditions is practically ... -
Effect of Extension Piece Design on Catch Patterns in a Mediterranean Bottom Trawl Fishery
(Journal article; Tidsskriftartikkel; Peer reviewed, 2022-05-18)The catch composition of bottom trawls is commonly refined and improved through changes in codend design. Measures like reducing the number of meshes in codend circumference or turning diamond netting by 90 degrees are well known to improve the size selectivity of fish species with rounded cross-sectional shape. Based on this we speculated whether the same measures, if applied in other parts of ... -
Estimating selectivity of experimental diamond (T0) and turned mesh (T90) codends in multi-species Mediterranean bottom trawl
(Journal article; Tidsskriftartikkel; Peer reviewed, 2020-09-11)This paper evaluates the effect of changing from a diamond mesh codend (T0) to a 90° turned mesh codend (T90) on the size selectivity of seven commercially important species in the Mediterranean bottom trawl fishery. In sea trials conducted in the north-western Adriatic, two experimental codends made of 54 mm nominal mesh size netting and differing only in mesh configuration were alternately mounted ... -
Every animal matters! Evaluating the selectivity of a Mediterranean bottom trawl fishery from a species community perspective
(Journal article; Tidsskriftartikkel; Peer reviewed, 2023-03-23)Bottom trawl fisheries often catch several species simultaneously. However, most studies addressing the catch performance and selectivity of a specific trawl focus on a few commercially important or most vulnerable species requiring management measures. By contrast, the present study considers the multispecies nature of Mediterranean bottom trawl fisheries through a holistic approach that accounts ... -
A framework for results-based management in fisheries
(Journal article; Tidsskriftartikkel; Peer reviewed, 2017-10-30)We present a framework for results-based management (RBM) of commercial fisheries. The core idea of RBM is to reduce micromanagement by delegating management responsibility to resource users. The RBM framework represents an industrial organization approach to co-management and comprises three defining processes, conducted by three independent “agents”: (i) an “authority” defines specific and ...
