Trammel net catch species composition, catch rates and métiers in southern European waters: A multivariate approach

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“…It has been reported that the inner-panel mesh size is responsible for the size selectivity of trammel nets (Losanes et al, 1992;Erzini et al, 2006;Stergiou et al, 2006). Results of the present study confirmed this fact and indicated that a slight increase in the inner-panel mesh size resulted in a significant difference in length distributions of both A. sohal and S. rivulatus (Table 2), with the overlapping over the majority of length classes (Figure 3), and the mean observed total length of the retained fish increased from 20.4 to 23.9 cm for A. sohal and from 19.1 to 21.2 cm for S. rivulatus with the slight increase in the inner-panel mesh size from 50 to 62 mm (Table 1).…”

Species composition and bycatches of a new crustacean trawl in Chile

“…Univariate and multivariate analyses of the catch composition were made following the approaches of Stergiou and Pollard (1994), Stergiou et al (2002), Labropoulou and Papaconstantinou (2004), and Stergiou et al (2006). Clustering (average groups) was based on the Bray-Curtis similarity index (Field et al, 1982) applied to overall abundance and biomass data taking into account the 15 combinations of target species, year and area.…”

Identification and Characterization of Métiers in Multi-Species Artisanal Fisheries. A Case Study in Northwest Spain

“…Although the high heterogeneity of these activities across different South-European countries and regions has impeded so far a standardized definition of these fisheries 1 [2] [7]- [9], most of them are characterized by a high diversification in gears and fishing techniques and changing spatio-temporal patterns of their use. These features make difficult artisanal fishing management [2] [10]- [12].…”

“…A recent discussion in the South-European context can be found in García-Flórez et al [9]. 2 Decision 2008/949/EC has been repealed with effect from 1 January 2011 by the Commission Decision 2010/93 of 18 December 2009, in which a multiannual Community Programme for the collection, management and use of data in the fisheries sector for the period 2011-2013 is adopted. 3 Mainly, vessels registered as "artes menores" in the National Census of the Operating Fishing Fleet.…”