When attempting to mitigate the environmental impacts of a fishery there are typically multiple criteria
against which the performance of any measures can be assessed. If the gains are non-commercial (i.e.
non-market) in nature, formally determining how well measures perform becomes more difficult. This study applies the analytic hierarchy process...
The artificial reef of Vilamoura (ARV) deployed between 1998 and 2001 is situated off the fishing community of Quarteira and the tourism resorts of Vilamoura (Southern Portugal). The reef extends for approximately over 4,000 m long and 1,400 m wide at a depth ranging from 20 to 40 m below...
Long-term, naturally occurring cycles can cause significant shifts in marine
ecosystems referred to as regime shifts. While the new regime can be as
diverse and ecologically acceptable as that which it replaced, individual
species may completely disappear or be greatly depressed when a regime
shift occurs. In this work we...
Inspired by the export boom developing countries got involved in multiple
export earning activities. However shrimp exports have become quite
lucrative activities for many developing countries including Bangladesh.
Shrimp occupies a good chunk of our export income. In calculating the
return from shrimp exports the usual practice is the nominal...
Federal legislation requires that governmental programs be evaluated on a wide set of criteria to provide policymakers with information on the achievement or lack of achievement of goals and/or objectives. A methodology to identify and quantify measures of achievement is described. In addition, the methodology is designed to facilitate the...
Ecosystems are one of the most productive fishing grounds in the world, with important commercial and valuable fish stocks. However, overfishing, IUU activities, discards, habitat destruction and alteration of the biogeochemical conditions of the ecosystem combined with an increase in fish demand continue to drive fisheries to an alarming situation....
The main objectives assigned to ecosystemic indices are to fuel the debate on the best ways to reduce the impact of global warming. Fishing activities are also concerned with the debate. The assessments carried out about fish products show that the use of fuel in the fishing stage has the...
Aquaculture and fisheries are essential resources for the agri-food
production of the north Adriatic coast. In particular mussels farms occupy a
large area of the gulf of Trieste. A total of 16 producers, working in small
cooperatives or individually, utilize 30 vessels on the 15 km of mussels
long-line along...
Economists have long promoted fishery rationalization programs, but ITQs may fail to address the
ecological consequences of fishing. Of particular concern is that economic incentives to harvest larger
fish (due to size-dependent pricing or quota-induced discarding) can destabilize fish populations or lead to
evolutionary changes. A substantial theoretical literature in...
In Indonesia, shrimp pond development and shrimp production expended significantly. There are also signs that this expansion has caused an environmental damaged, especially on the existence on mangrove forest. This extensification or expansion process has been facilitated by the national government through various support programs. Another important factor affecting the...