Sentence examples for gear selectivity from inspiring English sources

We focus on the evolutionary effects of size-selective fishing because regulation of gear selectivity may be an efficient management tool.

Due to general flexibility of the gear selectivity framework, also additional information about e.g., behavioural traits playing a role in gear selection (Biro and Post 2008; Uusi-Heikkilä et al. 2008) can be easily incorporated.

Information about gear selectivity can also be incorporated to simulation approaches to predict selection differentials arising from fishing (Williams and Shertzer 2004; Hilborn and Minte-Vera 2008) and possible evolutionary changes in the targeted population (e.g. Ratner and Lande 2001, de Roos et al. 2006).

Discarding does not only occur due to poor gear selectivity and the capture of unwanted fish.

Catch-at-age data provide, among other things, information about gear selectivity and recruitment strength.

What fishes are caught is not only driven by their abundance within the fish community, but is also related to gear selectivity and fishing capacity, targeting capabilities, cultural norms and dietary preferences, regulations, and market conditions16, 23, 32, 33.

It also allows one to pose generic questions concerning the fitness consequences associated with the use of a range of gear selectivities and life-history strategies to examine the degree to which different types of fishing gear are likely to accelerate or retard fisheries-induced evolution (see also Kuparinen et al. 2009).

Size-selectivity of fishing gear is an extensively studied area in fisheries sciences due to the simple fact that most modern fisheries aim at improving gear-selectivity to minimize by-catch, catches of undersized fish and to maximize catch per unit effort (CPUE) for target species.

If our evolutionarily concerned fisheries manager could manage gear size-selectivity, she would probably choose bell-shaped size-selectivity.

The results of this developing model indicate that practical applications might extend to other towed gears, gear design, predicting selectivity, fisheries management, etc.

At the gear level, size-selectivity of longline is regulated by hook size, so that longline retains a wide range of fish sizes above a certain threshold size (Huse et al. 2000; Stergiou et al. 2002).