The CBFM Output to Purpose Review 2 (OPR2) Report identified a need to further examine the impact of the CBFM activities on fisheries management performance at the local level in preparation for the final phase of the Project. This study was therefore commissioned in May 2005 specifically to determine the impact of the CBFM activities on fish production, resource sustainability and fisher well-being, whilst taking account of inter and intra-annual variation in important environmental variables such as hydrology.
This chapter provides a 'how to' guide for practically applying the integrated approach to a wetland assessment. It separates the assessment activities into three stages (preparation; field assessment and analysis; presentation and engagement) and eleven component steps. It gives recommendations based on our experience of using the toolkit in the two case studies presented in Section III.
In tropical floodplain systems local populations are generally highly dependent upon the system’s natural aquatic resources. In such systems the annual fish production depends on a combination of biological and physical parameters, principally 1) hydrological factors; 2) environmental factors and 3) fish migrations. Developing management plans is complicated as assessing the role of each factor is usually made difficult by their diversity, their interactions or feed-back loops, and by the frequent absence of data on certain factors.
A reassessment of the estimates of growth, mortality and recruitment patterns of Nile Perch, Lates niloticus was made based on data from commercial landings collected during the Catch Assessment Survey Programme. Two sets of length frequency data, one each from beach seining and hook and line fisheries, were analyzed. Values of L8 = 169 and 230 (cm TL) and K= 0.18 yr-1 and 0.195 yr-1 were obtained. The total mortality estimates from the catch curve analysis were Z = 0.72 yr-1 and 0.94 yr-1, respectively, with a natural mortality M of about 0.35 for a mean environmental temperature of 27oC.
This evaluation was conducted by a panel of untrained consumers, not in a laboratory environment, but instead, in a cafeteria where WorldFish staff normally have their lunch. The Quantitative Descriptive Analysis (QDA) approach used by Khaw et al. (2006) is generally recommended for product evaluation. It relies on especially trained personnel and it does not lend itself to situations in which the number of samples to be assessed is large. Furthermore, in reality, the acceptance or rejection of a product is determined by ordinary untrained consumers, not by trained personnel.
In Asia, the fisheries sector is important in terms of food security, livelihoods and foreign exchange earnings. However, as in many parts of the world, there are signs that capture fisheries are fully exploited or overfished. Management of fisheries in the region is often hampered by lack of information on the status of fisheries in terms of biological, social, economic, policy and governance aspects. This regional project documents an alarming decline on coastal fishery resources, based on historic research surveys in South and Southeast Asia.
The overall objective of this project is to promote the equitable and sustainable use of coastal resources in the Asian region through the development and implementation of integrated coastal management training tools. The main strategy of the project is to enhance national capacity building through training on integrated coastal management. Specific objectives: (1)
This manual is designed for qualified irrigation, fisheries, environmental or social science professionals. It sets out principles, procedures and tools for the assessment and management of the impacts of irrigation development on fisheries for the benefit of rural livelihoods and biodiversity conservation.
The link between environmental trends and economic policies is examined. The assessment of the past and present economic policies affecting the use of coastal resources in the Philippines showed that these policies have accelerated the rate of degradation of coastal resources. The current situation demands not only the reorientation of economic policies, but also other related actions to attain sustainable development of coastal resources.
The authors opened discussion by briefly summarising the main points in their paper. Coral reefs occurred predominantly in developing countries and coral reef fisheries were predominantly artesanal. Fishery yields varied greatly from one region to another with an average of about 15 tonnes per kilometre squared per year. However, coral reefs were so remote from potential markets, that the yield possible if all reefs were efficiently exploited would rot be reached. Coral reef fisheries were multi-species fisheries with all the problems for management that term implies.