In this paper we measure the value of sanitary restrictions in terms of forgone profits. For this we model the trade-off between biosecurity and profits in the salmon aquaculture industry. We introduce the concept of “sanitary desirable volume” of the salmon industry, as a goal in a bi-objective model. We...
The long desired self-sufficiency in national and grass-root fish production is momentous to food security in Nigeria. The nature and patterns of feed utilization among fish farming households will provide a strategy to raise demand for local feeds thereby raising national feed production vis-à-vis reducing Nigeria’s import dependency on feeds....
The long desired self-sufficiency in national and grass-root fish production is momentous to food security in Nigeria. The nature and patterns of feed utilization among fish farming households will provide a strategy to raise demand for local feeds thereby raising national feed production vis-à-vis reducing Nigeria’s import dependency on feeds....
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Conference of the Fishery Society of Nigeria (FISON) , 22-
25 Sep. 1986 ,Ilorin, Nigeria, pp. 224-231.
[8
Shrimp aquaculture is one of the fastest growing economic activities in the coastal areas of Bangladesh and earns substantial foreign exchange for the country. However, the environmental degradation is a major concern for the sustainable development of this industry. This paper studies the tradeoffs between the economic and environmental performance...
The long desired self-sufficiency in national and grass-root fish production is momentous to food security in Nigeria. The nature and patterns of feed utilization among fish farming households will provide a strategy to raise demand for local feeds thereby raising national feed production vis-à-vis reducing Nigeria’s import dependency on feeds....
Inland fisheries in Mexico represent a source of protein, income and employment, for rural communities. Although the most consumed fish in the country are fresh water fishes in the national statistics they only account for 3% of the total fish catch volume (marine fisheries account for 97%). Demand is higher...
Ghana's coast is identified with artisanal fishers who use wooden carved canoes and traditional fishing gears. However, little study has been conducted to assess the performance of this industry in terms of its efficiency. This study aims to analyse the technical efficiency and its determinants of the artisanal fishers in...
We investigate the effects of incorporating a fixed input on equilibrium profits and biomass. We first set up a theoretical model with an input that is fixed in the short-run (vessel size) but that can be used with a variable input at suboptimal capacity. We use this model to get predictions for...
The Baltic fishery is managed under the European Union Common Fisheries Policy (CFP) which defines procedures for setting annual total allowable catches (TAC) for major commercially harvested species. TACs are given as fixed shares to each member state by applying the principal of relative stability. Poland uses non-tradable individual vessel...
Electronic monitoring (EM) systems hold promise for the future collection of fishery-dependent data, either to supplement human at-sea observers or replace them. Several pilot studies have been conducted on EM in the New England groundfish fleet, though there are still on the water operational and shore-side protocols to further test...
The present article describes the changes that took place, in terms of efficiency and distributional issues, within
Chile’s central-southern pelagic fishery industry when the administrative regime evolved from controlling the
fishing effort to assigning individual fishing quotas. These changes are described through a set of indicators that
reveal variations in...
There has been little empirical analysis of technical efficiency for commercial fisheries in Victoria. This study examines technical efficiency in the Victorian Abalone Fishery with an input-oriented data envelopment analysis (DEA) using panel data for the period from 1978/79 to 2009/2010. The influence of factors affecting technical efficiency is analysed...
Full Text:
is
the
level
of
technical
efficiency
in
the
Victorian
abalone
fishery
There has been little empirical analysis of technical efficiency for commercial fisheries in Victoria. This study examines technical efficiency in the Victorian Abalone Fishery with an input-oriented data envelopment analysis (DEA) using panel data for the period from 1978/79 to 2009/2010. The influence of factors affecting technical efficiency is analysed...
Full Text:
technical efficiency and the impact of a viral disease outbreak in the
Victorian Abalone Fishery
There has been little empirical analysis of technical efficiency for commercial fisheries in Victoria. This study examines technical efficiency in the Victorian Abalone Fishery with an input-oriented data envelopment analysis (DEA) using panel data for the period from 1978/79 to 2009/2010. The influence of factors affecting technical efficiency is analysed...
Overcapacity situations appear regularly in the activity of marine natural resource exploitation. The measure of capacity utilisation and allocative efficiency for fishing vessels is an approach that can determine the details of that overcapacity. On the one hand, DEA (Data Envelopment Analysis) methodology can be used in the case of...
A wide range of fisheries are managed using vessel catch limits combined with different kinds of effort restrictions. This management framework is expected to have desirable consequences for the bioeconomic sustainability of fisheries. When appropriately implemented this approach produces outcomes that are similar to those associated with individual fishing quotas....
A two-stage, distributionally neutral and efficient rationalization policy design—one that preserves the ex
ante wealth distribution—is developed by blending elements of a cooperative and a partnership. It is
formally proven that there is no impediment to win-win rationalization using only IFQs allocated only to
harvesters. The design creates a bilateral...
A model for studying how destructive fishing practices may affect commercial fish stocks through their effect on habitat is presented. It may be used both for renewable habitat-types, like eelgrass (Zostra marina) or sponges, and also practically non-renewable habitats like corals. The model demonstrates the trade-offs between using destructive and...
In this paper, the estimate of the productive efficiency for some Italian fleet segments is proposed. The estimate is based on a Stochastic Frontier Production (SFP) function and a Data Envelopment Analysis frontier (DEA) using micro data of fishing vessels. The essential random nature of the fishing processes under consideration...
Electronic monitoring (EM) systems hold promise for the future collection of fishery-dependent data, either to supplement human at-sea observers or replace them. Several pilot studies have been conducted on EM in the New England groundfish fleet, though there are still on the water operational and shore-side protocols to further test...