The result of investigation about impact of aquaculture to water environment quality on Nha Phu lagoon (Khanh Hoa province) acknowledged: water environment quality was serious decline because of chemicals no using true, organic waste from shrimp pond, waste water, mud from shrimp pond and agriculture actions, accumulation sediment from mytilus...
In the quest to limit the bycatch of non-target species, marine protected
areas (MPAs) have been frequently utilized. MPAs are popular with
ecologists and fishery managers because of their relative ease of
administration, habitat protection benefits, and the widespread acceptance
of MPAs as an instrument of choice for the ecosystem...
There are many fishing landing areas in southern Iran, distributed all along the northern Persian
Gulf. Despite increasing effort, the total catch has fluctuated in recent years. Iran is facing with
over capacity of vessels and too many fishers, yet simultaneously political, social and
economical pressures exist for expansion of...
Management of fisheries and aquaculture is an issue that has received widespread attention in
the literature. The particular concern is the relationship among fishermen, fish farmers,
management institution and fish resources. This relationship is very important for sustainable
development of sea resources in Iran. Overfishing, uncertainty in fish availability and...
This video was produced by the Japan International Cooperation Agency to show the fisheries co-management activities recently adopted in Senegal. The structure of the video is as follows: causes of decline of fisheries resources, change of strategy from top-down to bottom-up fisheries management, building consensus among the fishermen with the...
Due to the development, Japan lost more than half of seaweed beds
because of reclamations, water brake constructions and water pollution
after the WWII. As a result, coastal fisheries production decreased from 2
million metric tons to 1.5 million metric tons. Building a forest in the sea
has been paid...
A new type of fisheries management approach termed catch share is set to
be implemented in the US Northeast groundfish fisheries in May 2010.
This approach gives a group of harvesters, called a sector, a portion of the
TAC to manage independently - a hybrid of co-management and individual
quota....
Methodological difficulties, particularly when multifleet-multispecies fisheries are active, explain pro parte a weak research effort on the socio-economic impact of fishery activities after the implementation of a marine protected area. Two components of the socio-economic impact have been prioritized: the fishing unit profitability and the fishery household income distribution by...
In recent years, WTO constantly focuses on fishery subsidy negotiations, and since the Non-actionable subsidies have been cancelled, fishery subsidies norm is still hard to reach a consensus. Although the WTO president drafted a list of prohibitive subsidies in 2008, they have been implementing widely in most countries, especially the...
Thousands of small man-made water reservoirs (water bodies with water surface
from five to some hundreds ha) have been developed in mountainous regions for water
supplying or hydroelectricity purpose, these areas are usually residence of poor,
backward minority groups which often lacks of food supplying resources. Development of
fisheries (both...
It has been established that the path of a fishery over time, i.e. stocks, fleets, effort and profits, depends inter alia on the enforcement of the fisheries management rules in place. It has further been established that optimal enforcement of fisheries management rules depends inter alia on the shadow value...
When fishers can avoid detection and/or sanctions for violating fisheries management rules, the fisheries enforcement problem becomes substantially more complicated. A number of issues immediately pop up. First, the effectiveness of enforcement effort is reduced. This, ceteris paribus, reduces the optimal enforcement effort. Second, the impact on the fishery of...
The ecosystem approach to fisheries (EAF) challenges the sustainable
management of resources at an ecosystem level facing human well-being
and environmental health. Here we describe how economic analyses may
fill important knowledge gaps for such a challenge when regarding a
broader multispecies context, e.g. tracking signals of change in ecosystem...
Over the past century, the tuna canning industry has been dominated by a few big companies, some of
them having changed of ownership or merged: these oligopolistic firms are the “big three” in the USA,
Van Camp, Star Kist, and Bumble Bee, the French Saupiquet, the Italian Trinity Alimentari and...
A major problem affecting world fisheries today is overcapacity of which
overfishing is both a cause and a consequence. Subsidies are now widely
perceived as an underlying cause of overcapacity, the negative
environmental, social and economic effects of which can be masked by
increasing support from the government. Subsidies that...
In ecosystem-based fishery management, the ecosystem comprises the
natural sub-system and also human components, including user groups,
institutions and the processes of management. Regional Fishery
Management Organizations (RFMOs), particularly those designed to
manage tunas, were not established with an ecosystem view of the pelagic
environment. However, tuna RFMOs have evolved...
The spatial distribution of Norwegian salmon farming depends on license
allocation and physical conditions, with politicians defining the former.
Currently, relocalization of these is not permitted. With an expected
temperature increase in Norwegian waters, this study analyzes increased
temperatures impact on the spatial distribution of production and
employment. Four scenarios...
Studies on poverty have focused predominantly on low income and food poverty. Little or no attention has been given to the emerging problem of adequate calorie intake accompanied by low micronutrient levels, particularly in diets of rural households in transition and developing economies. Micronutrient deficiencies are related to child mortality,...