As part of the Namibian government initiative on sustainable resources development, the Ministry of Fisheries and Marine Resources strongly urges right holders to continuously engage in value addition and market diversification of their products in an effort to realise maximum returns on their products. The importance of being in line...
Globalisation in the retail sector is transforming food value chains by driving consolidation in the industry and extending supply chains across the globe. Globalisation enables retailers to benefit from economies of scale and cheaper production in foreign locations. However, food markets themselves are increasingly responding to local consumer preferences. In...
The natural estrogen 17β-estradiol (E2) is responsible for the endocrine disruption and also has potential effect on the reproduction of vertebrate. However, its effect on invertebrate reproduction has scarcely been studied. The present study was conducted to determine the effect of E2 on survival, egg production and egg hatch of...
Many of the world’s most valuable fisheries involve highly migratory stocks that cross national jurisdictions. These same fisheries face severe threats from direct overfishing or excessive bycatch. Traditional input and/or output controls generally have been costly and ineffective. Incentive-based programs that provide tradable shares in an annual total allowable catch...
In this paper, a bio-economic simulation model for the sea scallop fishery is established and its application in analyzing the area rotation management policy is demonstrated. Section 2 describes model specification and estimation and presents the empirical model. Section 3 evaluates two policy options using the model and the last...
The coastal fishery in French Guyana is a challenging case study for the implementation of the ecosystem based fishery management. Although the current situation of this small scale fishery could be considered as satisfactory, the viability of the fishery can be questioned. Indeed according to demographic scenarios, the growth of...
This paper presents a new bio-economic simulation model for the Italian fisheries developed as a part of a project financed by The General Directorate for Fisheries and Aquaculture (under the Italian Ministry of Forestry and Agriculture Policies). The main objective of the model is to measure the effects of different...
The objective of the paper is to analyse and to simulate fishers dis-investment behaviour especially in the context of the French buyback policy. A case study, the limited entry scallop fishery of the Saint-Brieuc bay is used to consider the problem of excess capacity and to review the impact of...
This study is aimed at evaluating the effectiveness of buyback program implemented last during a 10-year period using a bioeconomic model. Aggregate fisheries stocks are assessed by the surplus-production model and standardized aggregate harvest function is used in the bioeconomic model. The simulation result indicate that the fish stocks are...
The West Coast Rock Lobster fishery is Australia's most valuable commercial fishery. Around 550 vessels
harvest 10,500 tonnes of lobster per annum. The industry has an enviable track record of biological
management which has been based on a variety of input controls. In recent years this has necessitated three
significant...
A scientific knowledge gap exists with regard to how benthic habitat is affected by destructive fishing methods, such as bottom trawling, and how this impacts upon the productivity of commercial fish stocks. This
article addresses analytically the effects of destructive fishing practices of a single gear fishery on a non-renewable...
A bioeconomic model allowing different degrees of harvesting closures for two sub-stocks consisting of mature and immature fish is presented. Hence the model opens for partial closures of fisheries on both sub-stocks. Migration between the two sub-stocks is defined as recruitment of the young to the mature sub-stock, and egg...
The Northern Prawn Fishery is one of the most valuable fisheries in Australia with a yearly estimated value of production of about $64mil. Nine prawn species are commercially harvested from the Northern Prawn Fishery with 80% of annual average catch represented by the banana prawn (Fenneropenaeus merguiensis) and the tiger...
This paper investigates the application of cellular automata (CA) models in bioeconomic studies involving varying biological growth and area distribution. A simple 2D continuous cellular automata (CCA) model is presented and incorporated in a fish harvest model based on standard assumptions of economic rational behaviour by individual decision makers. The...
Scallop fisheries are often characterized by variable abundance and periodic mass mortality occurrences. Area rotation is a respected management tool for sedentary species. A bioeconomic simulation model that incorporates the spatial and temporal distribution of scallop beds and fishing effort is presented. The model is user-friendly and was designed for...
The individual size of fish as a proxy for life-history traits and market
value displays an important, yet in bioeconomic modelling often ignored
biological and economic parameter. This raises the question if and to what
extent the consideration of a pricing related to the individual size
influences optimal harvest strategies....
I will present a brief history of fish processing along the Pacific Coast of California and Oregon, and recollect some childhood memories of “laying about” in fish houses and fishing boats in my “home port” of Fort Bragg. As many of you know, the past 25 years of my career...
The brief historical occurrence of aquaculture introduces the science that evolved from the early studies on cod propagation in 1864, and the export of these concepts about stock enhancement through protection of early life history stages through what has always been considered the ‘critical periods’ during which the majority of...
The Atlantic deep sea red crab (Chaceon quinquedens) is the target of a small, directed fishery in the Northeast US, which has been managed using total allowable annual catches (TACs) at the fleet level since 2002. Although not a catch share fishery, it shares many of the same features, behaviors,...
Adoption of aquaculture, particularly among the rural poor, requires timely
and quality seed at the farmer level. In areas of Northwest Bangladesh, the
region considered most marginalised for food production, carp polyculture
has been improved through the introduction of Nile tilapia, but constrained
by under-developed seed supply. In order to...
The objective of the paper is to briefly present a comparative analysis of trends in the characteristics of
selected European fleets, observed over the last fifteen years, as an introduction to three empirical studies
of the behavioural determinants of these trends. The analysis presented aims at (i) describing changes
observed...
This paper addresses to a comparative approach of long term changes in the characteristics of marine fisheries at a regional scale, in three ecosystems: up-welling, tropical and temperate. The South Moroccan
continental shelf, under the influence of the Canary current, where up-wellings take place, is the most productive part of...
On 26th December 2004, colossal waves known as tsunami engulfed the coastal nations around the Indian
Ocean. The disaster brought physical, psychological and emotional suffering beyond measure to many
communities. It resulted in immense devastation of many coastal vegetations and marine ecosystems. The
fisheries in the coastal villages in Sri...
Generalised linear estimation and multi-layer perception neural network modelling techniques were applied to the Scottish trawler fleet data in order to estimate which inputs have the greatest impact on boat profits and output. Both produced comparable estimates that revealed inelastic and non-linear response to vessel power and length, negative response...
The purpose of this paper is to provide a comparative index characterization of shrimp farms in Bangladesh, India and Indonesia. There has been considerable work carried out on shrimp farming in South East Asia with emphasis on biology, environmental factors, management and trade issues but much less work on the...
We focus on problems of access to marine sites for aquaculture in different countries, particularly in Maine, U.S.A. and Canada. The main question examined is how public natural goods (marine space) are allocated for aquaculture activities. Using ideas from law and economics, as well as institutional economics, we looked at...
Due to establishment of five international organizations for tuna fisheries, tuna fishing in high seas are consequentially transformed from a time of free competition to a time of cooperative competition on the platforms created by those international organizations. The paper explores the openness, procedures of decision-making, allocation of fishing quotas...
In this paper a real options approach is taken to natural resource contract valuation. A comparison is made between hedging with futures on developed (harvested) versus undeveloped assets. The risk-free Q martingale probability measure is obtained for the developed asset, and modified to a cost-adjusted Q martingale in the undeveloped...
Research of value chains in fish industries indicates that there is great
difference in value creation of the domestic part of the value chain between
countries with underdeveloped fish industries and developed fish
industries. This comparison is founded on the authors´ research on the
value chains of Icelandic cod and...
The productivity and resilience of fisheries are subject to a multitude of dynamic and interrelated influences that arise from complex coupling of fish populations with the natural and human systems of which they are a part. With few exceptions, fisheries are managed independently, ignoring important natural and human linkages among...
Focus groups were combined with surveys to inform policy making regarding precautionary measures to protect cold water coral (CWC). CWC represent complex environmental public goods involving irreversibility and uncertainty. Respondents believe CWC is valuable and should be protected. Use-values, particularly habitat for fish, dominated the focus group discussions, whereas non-use...
This paper discusses sustainable development of Yemeni fisheries towards achievement of Millennium Development Goals (MDG) and stakeholder aspiration. Yemen is considered a Least Developed Country ranking 148 among 174 countries in terms of the Human Development Index. In terms of food security, Yemen is classified as a Low-Income and Food...
The harvest technology of several multispecies fisheries has been explained in the recent literature using dual-based models. These studies are useful for explaining rent dissipation, estimating input and output elasticities, as well as describing other aspects of fisherman behavior. Most of these analyses have assumed that inputs are fixed at...
The status of fisheries resources on coastal and offshore areas is getting worse in Taiwan. Thus, to establish a fishery resources management system has become the main task among stakeholders. In this study, we would like to examine the feasibility of imposing the community-based co-management system and setting closed fishing...
This paper proposes a formal analysis of the discarding issue including the sorting labour costs. Empirical evidences from an application to the Nephrops fishery in the Bay of Biscay show that sorting is an important time consuming activity on board and a factor of discarding. However existing literature does not...
The Icelandic fisheries management system has always been controversial in Iceland. In the wake of the force of the financial crisis that hit Iceland the political debate has become increasingly emotional and heated. In this debate a rational understanding of the fisheries management system‚ aims and efficiency has lacked. Previous...
The Pacific sardine (Sardinops sagax) has been one of the most abundant fish in the California Current Ecosystem (CCE) since the late 1990s. In recent years under a warm regimen, large Pacific sardine reached Canadian waters in mid-June and returned to the spawning ground in Southern California during October. The...
This is an empirical analysis of the Malindi Ungwana Bay prawn fishery in the coast of Kenya. A resource allocation problem is at the heart of the conflict between artisanal fishers and commercial trawlers exploiting the prawn fishery in the bay. The Prawn Fishery Management plan by the government has...
Granting catch shares to cooperatives is a fisheries management option that has been widely applied. Although fishery cooperatives systems around the world are structured in various ways, it appears that most share the characteristic that members of the same cooperative are jointly and severally liable for not exceeding collectively assigned...
This research examines the gendered livelihood implications of fisheries management decisions through an exploration of a seasonal ban on fishing. The 45 day closed fishing season on the Eastern coast of India began in 2001 and applies to mechanized boats. While there is existing research on the impact of the...
For three years, a multidisciplinary group of researchers in social sciences, has analysed the Ethical, Legal and Social Aspects of fisheries management in Europe. In the framework of this ELSA Pêche programme funded under the ELSA line of the FAIR research programme of the European Commission (DG XII, Research), a...
Detailed economic analyses of fisher performance are critical inputs in improving the management of fisheries. The paper provides guidelines about the economic methodologies and the data required to monitor and assess the performance of individual transferable quota fisheries. In particular, it describes the methods of evaluation that could be applied...
Millions of people across the world, and particularly in Asia, depend on small-scale fisheries for a livelihood. Small-scale fisheries contribute in significant ways to employment, income and food security, and in many parts of the world small-scale fisheries constitute the backbone of remote, rural economies. However, several problems, within and...
Western Australian (WA) fisheries have a long association with environmental certification- the WA rock lobster fishery (in 2000) was the first fishery certified under the Marine Stewardship Council (MSC) standards.In 2012 the Western Australia Minister of Fisheries announced that the State Government had committed $14.6 million across a four-year period...
A principle U.S. fisheries management concern is ensuring compliance with Endangered Species Act requirements to limit incidental takes of listed species to levels which do not result in potential jeopardy to existing population stocks. Part of the risk assessment process involves an analysis of historic takes (bycatch) of ESA-listed species...
The aim of this paper is to assist teaching undergraduate students how to analyse the issue of fish stock investment. The mathematical prerequisites are a basic knowledge of calculus. Both discrete and continuos time frameworks are used. To fish down or to build up a fish stock takes time, and...
The recent history of fisheries management in New England has seen substantial interannual variability in total allowable catches (TACs), with stocks deemed healthy in one year retroactively identified as overfished soon thereafter. Concurrently, avenues for and examples of coordination between fishermen are increasing in the region, as exemplified by the...
The fishery cooperative association of Akita Prefecture closed the sailfin sandfish Arctoscopus japonicus fisheries from 1992 to 1994 to rehabilitate the stock. Following the temporary closure, the total allowable catch (TAC) has gradually increased. The aim of this study is to evaluate the effects of the fishery moratorium and other...
This contribution employs a „fish chain‟ approach or ocean to plate analysis to examine key market drivers affecting Northern Gulf cod fisheries recovery since their collapse in the early 1990s. Drawing upon the backward bending supply model of fisheries; secondary data was compiled and analyzed for the pre- and post-collapse...
The 1992 Convention on Biological Diversity (CBD) establishes a new legal framework for the management of biological resource use, for example in fisheries. The signatory states to the CBD have agreed upon several major principles which become legally binding following ratification of the Convention by the national legislature. In terms...