Sustainable fishing of inland waters

Troubled fishing in Pacific waters

The Pacific island countries persist with tuna fishing policies that are significantly inferior to what appear to be the economically and environmentally sensible courses to follow. Economists have been offering advice over a fairly long period about better policy options without having any discernable favourable impact. This lack of success might be due, as Gordon Tullock once said, to the fac...

Trends in World Yields for Inland Waters

Fluctuating Fisheries in Africa's Inland Waters: Well

This paper evaluates evidence that fish stocks in Africa's inland waters are climate-driven and cannot be stabilized by conventional fisheries management measures. We draw on published material and our own recent and on-going research in Lake Chad and the East African Great Lakes area to propose that fisherfolk's livelihood strategies are well adapted to both seasonal and inter-annual climate-i...

Assessment of physiological strain in inland fishing activity

Ten fishermen aged between 19 and 48 years of age, were examined in the field during inland fishing activity, which they perform individually. Physiological strain in terms of heart rate varied between 86 and 115 beats/min with mean net cardiac cost of 32 beats/min. The average relative cardiac cost was 36%. Analysis of physiological responses revealed that the recommended limits of cardiac str...

Bright spots of sustainable shark fishing

Sharks, rays and chimeras (class Chondrichthyes; herein 'sharks') today face possibly the largest crisis of their 420 million year history. Tens of millions of sharks are caught and traded internationally each year, many populations are overfished to the point where global catch peaked in 2003, and a quarter of species have an elevated risk of extinction [1-3]. To some, the solution is to simpl...