2 List of Figures 5 List of Tables 6 Introduction 7 Study Area 9 Methods 9 Study sites 9 Sampling 13 Feeding condition and spawning readiness 14 Otolith preparation and fish aging 15 Species richness 15 Catch-per-unit-effort 16 Water level monitoring 16 Statistics 17 Results 18 Capture data 18 Species richness 19 Catch-per-unit-effort 22 Water level monitoring 22 Species accounts 26 Northern pi...

Fishing takes place in the high seas and Exclusive Economic Zones (EEZs) of maritime countries. Closing the former to fishing has recently been proposed in the literature and is currently an issue of debate in various international fora. We determine the degree of overlap between fish caught in these two areas of the ocean, examine how global catch might change if catches of straddling species ...

A two countries-single speriss dynamic optimizacion problem in fisheries is formulated in differential game theoretic framework. The Cournot-Nash solution concept is introduced and two strategies in arriving at the Cournot-Nash solutions; are discussed. These strategies are (1) closed-loop catch strategy and (2) openloop catch strategy. A quadratic benefit function is then used as the objective...

We have identified the marine fish taxa that are most vulnerable to exploitation, by compiling an index of intrinsic vulnerability based on life history traits. Since 1950, the global fish catch has been increasingly dominated by species with low intrinsic vulnerability, indicated by a decline in mean vulnerability of the taxa in the catches. This decline is strongest in catches of coral reef f...

Length and possession (creel or bag) limits are among the most commonly used regulations for management of recreational fisheries. Although several types of length limits (e.g., minimum, maximum, protected slot, and inverse slot) are used to manage fisheries, all require that anglers release certain sizes of fish. Daily possession limits also require release of captured fish after anglers’ catc...

Globally the majority of commercial fisheries have experienced dramatic declines in stock and catch. Likewise, projections for many subsistence fisheries in the tropics indicate a dramatic decline is looming in the coming decades. In the Pacific Islands coastal fisheries provide basic subsistence needs for millions of people. A decline in fish catch would therefore have profound impacts on the ...

The selectivity of fishing gears with respect to fish species and size is important, both for fisheries management and fishing operations. Purse seining is an efficient, environmentally friendly fish capture methodology generally targeting single species aggregations, but once a fish school has been selected and surrounded by the seine, there is no selections for individual size, species or cat...