Fisheries provide nutrition and livelihoods for coastal populations, but many fisheries are fully or over-exploited and we lack an approach for analysing which factors affect management tool performance. We conducted a literature review of 390 studies to assess how fisheries characteristics affected management tool performance across both small-scale and large-scale fisheries. We defined success as increased or maintained abundance or biomass, reductions in fishing mortality or improvements in population status.
This report provides a situational analysis of the Egyptian aquaculture value chain conducted in 2013/2014. It deals with the conditions within which the farmed fish value chain operates in Egypt and the general trends that exist in the environment.
This article describes the development and use of a rapid evaluation approach to meet program accountability and learning requirements in a research for development program operating in five developing countries. The method identifies clusters of outcomes, both expected and unexpected, happening within areas of change. In a workshop, change agents describe the causal connections within outcome clusters to identify outcome trajectories for subsequent verification.
This chapter presents the current state of knowledge on “Inn” fisheries, an important fisheries management regime in Myanmar. The presentation made is based on a comprehensive review of literature, some original research data and the authors’ extended combined experiences working in Myanmar. The chapter starts by revisiting the origin of the “Inn” system, shedding light on the chain of events that led to its generalization under the British occupation.
This selection of methods is based on lecture notes used at a FAO/DANIDA training course held in Mombasa, Kenya, in May-June 1980. The methods presented are: regression and correlation, estimation of growth parameters from length-frequency data, estimation of mortalities (total, natural, fishing mortality) and analysis of catch and effort data.
Early computer applications in temperate stock assessment are briefly reviewed, along with some properties of present lines of programmable calculators and microcomputers. Differences and similarities between temperate and tropical fish stocks are also reviewed, emphasis being given to implications for stock assessment.
The parameters a and b of the length-weight relationship of the form W=a L super(b) were computed for 46 species caught in a series of demersal trawl hauls over the period 1995-1997 in the Gulf of Salamanca, Colombia.
An examination is made of the fish production potential of coral reef areas and techniques used to estimate possibleyields.