This presentation provides an overview of a Special Session presentation held at the NAAFE Forum 2017 in March, 2017. The title of the special session was: Saving the World's Most Endangered Marine Mammal. The session was organized by Oriana Poindexter.
Anchovy fisheries in Indonesia faces a declining state in the next decade. This research investigates some factors contributing to a reduction of anchovy resources. It was carried out in Krueng Raya Bay-Aceh from September to October 2012. Survey and interviews were implemented to explore the state of anchovy. Primary and...
Multispecies fisheries pose a considerable management difficulty with respect to quota allocation between species. The applicability is to single vessel and its individual quotas, as well as to the fleet as a whole. Negative externalities may be created if Total Allowable Catches (TACs) are not set in optimal proportions. That...
The objectives pursued by governments managing fisheries may include harvesting the fish stocks to maximize profits, to minimize the impact of harvesting on the marine ecosystem, or to secure jobs in the fishing industry. These objectives all depend on the composition of the fishing fleet as the various vessel types...
Illegal extraction is a serious issue in many renewable resource industries, such as fisheries and forestry. This traditional approach is to model the resource firm as one cohesive unit or an individual. However, in many cases violations are not committed by an individual, but by agents acting on behalf of...
This study suggests an optimal harvest policy for Barents Sea species, namely Northeast Arctic Cod (Gadus morhua) and Capelin (Mallotus villosus) in the multispecies ecosystem. We have solved a multispecies age structured bioeconomic model for predator-prey interaction. Barents Sea stock data from ICES (International Council for the Exploration of the...
Ivorian fishery resources are severely degraded by reason of poor state policy in the development of fisheries and aquaculture, of very degrading fishing techniques and fraudulent intensive exploitation of fish, of deforestation and its corollary erosion and industrial and agricultural pollution. This degradation, which is characterized by the decline in...
"Infrastructure facilities of landing sites, which are the core of the fishing industry in Sri Lanka, were severely damaged by the tsunami in December 2004.
Currently these facilities are being rebuilt in association with various non-governmental organisations. At present there are large numbers of small anchorages which require development of...
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...
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 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...
The opening and closing of the shellfish harvest area inevitably influences the market, particularly the exvessel prices that harvesters receive. Without a better understanding of shellfish market and its behaviors, it is impractical to determine the impact of management policies on the market as well as the fishery resources. Using...
As fisheries management becomes more collaborative by seeking input and involvement from stakeholders, it is important to understand and address the diversity of those stakeholders. Gulf Coast fisheries communities include diverse racial and ethnic groups, particularly a large number of Vietnamese Americans involved in all aspects of the seafood industry....
Export economy has been interrupted in shrimp/prawn, the second largest earning source of Bangladesh due to detection of Nitrofuran in export ed prawns to the EU countries. Around 100 consignments of frozen prawn (Macrobrachium rosenbergii) were rejected at the EU borders between 2005 and 2009. Bangladesh exported shrimp and fish...
Fishing years 2012 -2013 brought declines in socio-economic performance for the Northeast groundfish fishery. Severe reductions in catch limits for key species such as Atlantic cod have constrained fishing behavior and declining groundfish revenues cannot be offset by non-groundfish revenues earned by the fleet. Little is known about the way...
Tuna management in the Western and Central Pacific (WCP) is complicated given the dynamic and sometimes conflicting interests of participating countries and actors exploiting the tuna resource in the region. Pacific Island Countries (PICs) through the Fisheries Forum Agency (FFA) and the Parties to the Nauru Agreement (PNA) have developed a...
Tropical and sub-tropical coastal and estuarine ecosystems are complex, dynamic systems that are important in providing numerous ecological services. Globally, these ecosystems are threatened by anthropogenic activities and climate change and these, together with their complex nature, makes management of tropical and sub-tropical coastal and estuarine ecosystems difficult.
Ecosystem models...
Motivated by the evidence that many collapsed stocks have failed to recover despite fishing mortality has been reduced, or even when a moratorium is currently in effect, we develop a spline methodological approach to analyze the stochastic population dynamics of fish stocks at low stock levels. The aim of this...
A local fisheries management model employing short-term fisheries closures for rapidly growing species is proliferating across coastal east Africa and Indian Ocean islands. Aiming to improve management and boost incomes, NGOs, international finance institutions, and government agencies are promoting the technique in artisanal fishing communities. In southwest Madagascar alone, over...
With the development of the ecosystem approach to f
isheries (EAF), fisheries management is
increasingly required to deal with multiple, often
conflicting objectives. In this context, the
stochastic co-viability approach has been proposed
as a useful modeling framework as it allows
for the combined representation of complex fisherie
s dynamics,...
To keep pace with growing demand, wild fisheries are subject to high pressure. An increasing trend in the percentage of overexploited, depleted and recovering stocks is observed since the mid-1970s. In contrast, the aquaculture sector has been the fastest growing food industry since 1970. It has become a substantial source...
Multispecies fisheries pose a considerable management difficulty with respect to quota allocation between species. Externalities of direct control over the harvest may include, among others, creation of unbalanced predator‐prey relationships in the environment. That, in turn, may affect the individual economic incentives of fishing vessels. Combining economic and ecological factors...
A fisher’s decision making process is governed by some key questions that need to be answered for each fishing trip: whether or not to commence a fishing trip, where to go fishing and when to return to port. We studied these decisions on the basis of the results of questionnaire...
We introduce a modified version of the standard Gordon-Schaefer fishery model. Standard theoretical models usually treat fishing effort as an aggregate measure encompassing all different types of inputs. Consequently, these models do not enable us to examine the problem of fleet redundancy and capital stuffing separately, i.e. two ways in...
Bycatch reduction policies, traditionally focused on command-and-control at-sea measures, can be reframed to a broader-based biodiversity conservation and ecosystem management strategy. More cost- and ecologically-effective bycatch mitigation measures may directly and more effectively increase impacted populations elsewhere in their geographic range or life cycle. At-sea bycatch reduction faces diminishing returns...
Individual transferable quotas (ITQs) have been used in several countries worldwide to regulate access to marine fisheries. While ITQs can improve the economic efficiency of fisheries, in practice their application rarely has the expected effects. In this study we compare the output predicted by an individual based model of quota...
When different species are caught together in mixed-fisheries but are managed under single-species management plans may lead to TACs of some species being exhausted before other. This leads to conservation and socio-economic problems in fisheries, where agreed harvest levels cannot be obtained for some stocks, while other stocks may be...
The debate about whether international trade actually benefits for resource and all stakeholders in the chain is still unsettled. Even the benefits of international trade were addressed in some articles, the question about which signals for policy makers intervene in the market is still being raised. This paper attempts to...
When compiling metadata for use in a meta-analysis, many of the underlying studies report multiple estimates leading to issues of correlation or dependence. This paper examines the effects of different models and treatments for within-study correlation on meta-regression (MR) analysis and their corresponding implications on benefit transfer (BT) performance. Treatments...
This study considers a cross sectional data of 210 farms to analyze the technical efficiency levels of intensive and semi-intensive fish farms in Ghana using the meta-frontier approach. This technique takes into consideration farms that operate under different technologies. It estimates technology gap that measures output from the frontier production...
The Measuring the Effects of Catch Shares Project is a webportal-based effort that continues to compile and analyze data on ecological, economic, social, and administrative changes in groundfish catch share fisheries on the West Coast and in the Northeast. The purpose of the five-year project is to make the best...
Australia has a policy of achieving maximum economic yield (MEY) in Commonwealth fisheries, with many States also interested in the MEY target. Bioeconomic models are being developed for estimating MEY for several fisheries, supported by economic surveys of the fisheries. While most cost components can be derived directly from the...
Fish consumption accounts for about 45% animal protein consumption in Nigeria, currently capture fisheries and the various value chain ( especially its marketing and distribution ) for fisheries and aquaculture products is a vibrant and dynamic commercial sector in Nigeria, ripe with investment and employment opportunities. Marketing of fish and...
The study was carried out in Anyigba, North central
Nigeria to analyze the distribution, marketing and
consumption
of sea food. It specifically sought to describe the
socio-economic characters of the fish marketers and consumers,
identify the distribution channel of fish, the species of fish sold and consumed‚ and preferences in...
The vaquita, a critically endangered marine mammal, is a bycatch to shrimp strawl and gillnet fisheries in the upper Gulf of California. Reducing vaquita bycatch, however, is complex. The fisheries are smaller-scale and major contributors of income and employment to coastal communities. Although tourism is increasingly important, fishing remains an...
Demand structure and market segmentation for seafood have been investigated intensively. However, most the researches so far applied traditional demand analysis and descriptive segmentation approach by separated models. The traditional demand analysis assuming consumer homogeneity, behavior consistence, and using aggregate data may result biased estimation, while the segmentation based on...
The fisheries sector is one of the world’s most globalized food producing sectors with almost 40 % of total production now entering international markets. Trade has a particular relevance and importance for developing countries who represent more than 50% of global fish exports thereby generating important benefits in terms of...
The significant revenue involved in marine aquarium trade notwithstanding, in developing countries generates gainful employment and alternate livelihood in rural sector to fishers. Despite rich biodiversity of marine ornamental fishes and ideal milieu for expansion of trade the sector remains at infancy. However, absence of primary database on marketing is...
For decades, the management of the Dutch flatfish fishery has included a variety of measures including individual transferable quotas (ITQ) and the implementation of a co-management system without succeeding in recovering the fishery to sustainable levels partly because of the multispecies aspect of the fishery with the two main commercial...
Alaska is the largest seafood producing state in the US. In 2013, Alaska landed 1.88 billion USD worth of seafood, with a volume of 2.63 million MT. This consists of 34% of the total value and 60% of the total volume landed in the US. Of the top 20 fishing...
For US aquaculture industry, primary factors influencing their competitiveness are consumers' perceptions of long-term health risks related to domestic farmed seafood consumption. The public is often particularly sensitive to food risk scares, and can often dominate other considerations in food choice and lead to large impacts on consumption and the...
The fairness and inclusiveness of globalization in seafood trade is coming under increased scrutiny due to economic, social and environmental impacts created as trade has expanded, often leading to imbalances among nations. The European Union is the most important world market for the consumption of seafood. Despite the construction of...
Transdisciplinary approaches and innovative combinations of social and ecological theory are required to deal with complexity and change in fisheries and other human-ecological systems. This paper examines the interplay and complementarities that emerge by linking resilience and social wellbeing approaches to better understand and govern fisheries. After first discussing the...
Despite substantial technological developments over the last two decades, incidental catch of charismatic species still occurs in many world fisheries. Short of ceasing fishing activity, some bycatch is inevitable. In some cases, populations of these species are at low levels, and in several instances the species have been listed as...
Since the 1990s Pacific island countries have been host to a plethora of projects to improve the management of coastal marine environments. Some of these have been about strengthening Indigenous and community-based forms of resource management. Some have been about building government capacity and strengthening legislative frameworks. Marine Protected Areas...
The contribution of
fish and fisheries products in the economy of Horn
of Africa countries is substantial to food security,
livelihoods, employment and foreign currency earnings. However, production is mostly characterised by
artisanal fishermen who rely on local and cross border trading conducted through informal and unofficial
market channels and...
The Biodiversity Impact Mitigation (BIM) hierarchy provides an overarching conservation framework for bycatch reduction, and more broadly for biodiversity conservation. This framework includes four steps, which are implemented sequentially to: (i) avoid and (ii) minimize impacts; (iii) rehabilitate/restore impacted biodiversity; and (iv), compensate such impacts, usually elsewhere. The first three steps...
International seafood trade takes place through value chains that link production in developing countries to developed country markets. As a result of the emergence of the global value chain analytical framework from the political economy of development (and underdevelopment) approach, value chain analysis has traditionally maintained a production orientation to...
This paper aims to analyse and elucidate key conditions for the sustainability of community-based fisheries management (CBFM) on unrestricted fisheries in Japan. It re-examines more than 50 years’ worth of empirical evidence regarding the outcomes of the socio-economic rationality of the self-imposed management of common property, with particular reference to...
ITQ systems generate ITQ prices. For any given ITQ-managed species there are typically two prices. One is for the annual (or seasonal) quota, the other is for the longer lasting ITQ-share. In well-functioning ITQ markets, these prices reveal important information about the fishery. In the single species framework, prices of...