Navigation in Marine Protected Areas: National and International Law

Abstract

World fish resources, fishing methods, and processing operations in the seafood industry are described. The fishery situation in developing countries (LDCs) is discussed, with particular reference to artisanal and other local fisheries, and examples are cited to illustrate the structure of the industry. Technology transfer from developed countries to LDCs is discussed and recommendations are presented for future technology transfer programs. It is concluded that an integrated complex of small projects with defined, attainable objectives and immediate impact on income and food supply of the LDC populations is likely to be more successful than large‐scale programs with little immediate payoff. A case study of fisheries in two developing countries, Thailand and Peru, and extensive tabulation of statistical data on catches, value of catch, and unit value of fish species groups for selected countries, with a discussion of the significance of the data, are presented in an appendix.     

In search of self‐reliance: Problems of marine technology transfer to the developing countries: The case of West Africa

Abstract

This study presents some of the main features of the marine technology transfer process and identifies the key factors determining the particular transfer arrangements available for developing countries of West Africa under different circumstances. Emphasis is made on the fisheries sector because of its economic importance in that region. It examines the principal characteristics of suppliers and recipients of fisheries technology and their prevailing attitudes with regard to transfers. It draws on empirical research covering several international cooperative fisheries arrangements in Mauritania, Guinea‐Bissau, and Guinea‐Conakry that have high potential to function as a technology transfer mechanism from developed to developing coastal countries.     

Life cycle assessment of aquafeed ingredients

Purpose

This study performs an exploratory comparative evaluation of various animal and vegetable protein and lipid sources, used as feed in the aquaculture industry. The ingredients studied include fishmeal (FM) and fish oil (FO) from fisheries by-products, meal and fat by-products from poultry slaughter, FM and FO from Peruvian anchovy capture, and soybean meal and oil. The boundaries studied include the production or capture, the ingredient processing unit and the transport to the unit that processes the ingredients into aquafeeds in Portugal.

Methods

The LCA impact assessment method is the CML-IA baseline V3.04/EU25 and the results were obtained for the characterisation step. Some of the inventory data were collected from a Portuguese company (Savinor) that processes both by-products from local fisheries and by-products from poultry production. Savinor provided data specifically associated with the ingredients’ production. Obtained data were complemented with literature data from: fish capture and poultry production. Inventory data for the production of ingredients from Peruvian anchovy and soybeans were retrieved from literature. It was assumed that the transport of the ingredients produced from Peruvian anchovy, between Lima and Rotterdam, is made in a transoceanic vessel, and it is considered a transport by truck between Rotterdam and Ovar, for soybean ingredients and FM/FO produced from Peruvian anchovy.

Results and discussion

This paper shows that poultry meal and poultry fat from poultry slaughter by-products have the larger contribution to all environmental impact categories evaluated, being the production of poultry the life cycle stage that contributes most to the overall categories. On the other hand, FM and FO from Peruvian anchovy were the ingredients with a lower contribution to all impact categories, except for abiotic depletion category, for FM from Peruvian anchovy, and abiotic depletion, abiotic depletion (fossil fuels) and ozone layer depletion for FO from Peruvian anchovy. For these categories, soybean meal and oil had lower impacts, respectively. The ingredients were compared by classes (protein and lipid sources).

Conclusions

A general conclusion is that soybean meal and oil and FM/FO from Peruvian anchovy appear to be very interesting options for aquafeeds from an LCA perspective. However, some limitations identified for this study, as, for instance, that it does not account for the environmental benefits associated with the use of the mentioned by-products, that would otherwise be considered wastes (i.e. by-products from the fish canning sector and poultry slaughter) shall be evaluated in future studies.

     

Some implications of ocean research

Abstract

The funding of much of ocean research is justified on the basis of expected benefits. Such research also has political implications relating to the law of the sea and to the transfer of technology. These implications are illustrated in an analysis of up‐welling research. Potential benefits include the prediction of fishery yields, the forecasting of weather and climate, and the location and assessment of nonliving resources. Because of the location of coastal upwelling, many developing countries are concerned with sharing in these benefits. This concern has affected negotiations over control of marine scientific research in the law‐of‐the‐sea negotiations and is related to the need to develop scientific capability in such countries.     

Man,state, and fisheries: An inquiry into some societal constraints that affect fisheries management

Abstract

The rise and fall of the Peruvian anchoveta fishery provides an interesting case study of the mixture of socioeconomic, oceanographic, meteorological, and biological factors that can affect fish populations in coastal upwelling regions. The purpose of this paper is to identify some of the societal factors that might have an adverse effect on the rational management of this fishery. The paper focuses on views expressed in the social and physical sciences literature that relate successes and failures of fisheries management to activities at the international level, the national level, or to individual behavior. While some of the factors occurring at the three levels of analysis are obvious to those involved in fisheries, the effect of others are not so obvious. This framework for analysis of natural resource issues might offer a new approach to an improved understanding of how societies interact with their physical and biological environments.     

UNCLOS III and the new international economic order

Abstract

The New International Economic Order has become an all pervasive issue in contemporary international relations and is being discussed, debated, and considered in a number of international organizations and negotiations. Representatives of the Third World have demanded under its banner significant changes in the world's political and economic structure. It is in this context that the Third United Nations Conference on the Law of the Sea has been meeting.

This study focuses upon the protracted negotiations on seabed mining and seeks to relate continuing North‐South differences to broader trends in international relations. It examines, in light of pressures for a New International Economic Order, disagreements relative to: a) access to seabed resources, b) the resource and commodity policy of the proposed International Sea‐Bed Authority, c) financial arrangements for deep seabed mining, d) transfer of technology, and e) the organizational structure of the International Sea‐Bed Authority.     

Deep‐sea mining between convention and national legislation

Abstract

A Draft Convention, informal rather than formal, emerged in September 1980, from the Ninth Session of the Third UN Conference on the Law of the Sea. At about the same time the Federal Republic of Germany and the United States passed interim legislation to create a legal framework for deep‐sea mining activities. If seabed mining is to be undertaken, a legal framework or “Rechtsordnung”; must be established which secures the right of access to the resources under commercially viable conditions during the operational time‐span of an industry, namely twenty to thirty years. At issue is the long‐term problem of securing strategic raw materials rather than the realization of short‐term profit. The American decision in March 1981, immediately prior to the Tenth Session, to review the Draft Treaty, has served to focus attention on the system of access, the decision‐making processes of the International Seabed Authority, the transfer of technology and the payment of fees, and the capability of the Enterprise as a seabed miner.     

Transfer of seabed mining technology: A stumbling block to U.S. ratification of the law of the sea convention?

Abstract

The Law of the Sea Convention's provisionson the transfer of seabed technology are designed to translate into specific terms the general notions (adopted in the U. N.’s Declaration of Principles of 1970) that the resources of the seabed are the “common heritage”; of humankind and that the developing nations are to gain special benefits from the exploitation of these resources. Some developed nations—in particular, the United States—have argued that these provisions are unfair, because they deprive the multinational enterprises of the developed world of the competitive advantage they have gained from their substantial investment in research and development and their innovative capabilities.

The transfer of technology is not a new concept. It is a mechanism that has been used systematically by many developing countries to ensure that foreign investments will produce a lasting infrastructure for continued national development. Multinational enterprises have learned to accommodate national needs in this area, and technology‐transfer requirements for land‐based investments have not deterred investments in the developing world.

The technology‐transfer provisions in the Law of the Sea Convention are ambiguous in certain respects, but the Preparatory Conference should provide ample opportunity to clarify these ambiguities and thus to accommodate the needs of both the investors and the developing nations. If this issue is examined from a common‐sense perspective, it should not continue to be a stumbling block that would prevent the United States from ratifying this important Convention.     

Cost-benefit and cost-effectiveness analyses in pest management

Abstract

Economics is the study of how people allocate scarce resources among competing needs. It is applicable to pest control because managers must often make difficult choices about how to allocate a limited budget among many possible control programmes. Therefore, pest managers are required to make economic decisions, and pest management is not an exclusively biological problem. Economics offers a structured theoretical framework within which pest management issues can be critically examined, and offers quantitative tools to decision-makers faced with complex choices.

Economic theory suggests that individual selfinterested land owners are unlikely to provide pest management services at a level acceptable to the community. This line of analysis provides a justification for active Government involvement in the provision of pest management services. Quantitative tools developed by applied economists assist with the identification of socially desirable public policies, and suggest profitable areas of future research.     

Coupled Ecosystem/Supply Chain Modelling of Fish Products from Sea to Shelf: The Peruvian Anchoveta Case

Sustainability assessment of food supply chains is relevant for global sustainable development. A framework is proposed for analysing fishfood (fish products for direct human consumption) supply chains with local or international scopes. It combines a material flow model (including an ecosystem dimension) of the supply chains, calculation of sustainability indicators (environmental, socio-economic, nutritional), and finally multi-criteria comparison of alternative supply chains (e.g. fates of landed fish) and future exploitation scenarios. The Peruvian anchoveta fishery is the starting point for various local and global supply chains, especially via reduction of anchoveta into fishmeal and oil, used worldwide as a key input in livestock and fish feeds. The Peruvian anchoveta supply chains are described, and the proposed methodology is used to model them. Three scenarios were explored: status quo of fish exploitation (Scenario 1), increase in anchoveta landings for food (Scenario 2), and radical decrease in total anchoveta landings to allow other fish stocks to prosper (Scenario 3). It was found that Scenario 2 provided the best balance of sustainability improvements among the three scenarios, but further refinement of the assessment is recommended. In the long term, the best opportunities for improving the environmental and socio-economic performance of Peruvian fisheries are related to sustainability-improving management and policy changes affecting the reduction industry. Our approach provides the tools and quantitative results to identify these best improvement opportunities.     

Bacterial protein meal produced on natural gas replacing soybean meal or fish meal in broiler chicken diets

Abstract

The effects of replacing soybean meal or fish meal with 2, 4 or 6% bacterial protein meal (BPM) on growth performance, ileal digestibility of amino acids and sensory quality of meat, were examined using 630 broiler chickens. Weight gain from 7 – 32 days of age did not differ significantly among the treatments. Efficiency of feed conversion was increased when BPM replaced soybean meal, and abdominal fat deposition tended to decline. Feed conversion was not affected when BPM replaced fish meal. Amino acid digestibility was unaffected or improved when BPM replaced soybean meal, whereas replacement of fishmeal with BPM resulted in similar digestibility. Sensory quality of fresh thigh meat was similar among treatments, but for freeze-stored chest meat replacement of fish meal with BPM reduced off-odour and off-flavour and increased juiciness. It was concluded that 6% BPM can replace soybean meal or fish meal protein in broiler chicken diets.     

Gene transfer in fish: Potential and practice

Abstract

During the past decade, developments in genetic engineering technology have led to the production of transgenic fish. In this paper, the impact of this novel strategy for genetic improvement of fish is examined in the context of possible benefits, probable limitations, and actual results. The role of gene transfer in improving fish growth rates, combatting disease, and altering other specific aspects of fish production is reviewed. Practical considerations, particularly in relation to the selection of a gene construct and its subsequent transfer, are outlined. A detailed discussion of the fate of transferred genes and the efficiency of transgenic fish production is also included. Finally, we review some of the practical precautions which must be observed if this novel technology is to safely complement conventional fish production strategies.     

Economic issues for the UK biotechnology sector

This paper examines the economic prospects for the biotechnology industry, focusing on the UK position. I discuss some economic issues relating to the structure of the biotechnology industry and examine whether these factors can account for the relative success of the biotechnology sector in the UK compared to other European countries. I emphasize the importance of the science base, pharmaceutical companies and capital markets in giving the UK an advantage. Looking ahead I argue that prospects are good for the global growth of the industry due to supply and demand side factors. The UK is in a leading position in Europe but faces significant dangers, especially from the public towards biotechnology.     

The integration of long-term marginal electricity supply mixes in the ecoinvent consequential database version 3.4 and examination of modeling choices

Purpose

The long-term marginal electricity supply mixes of 40 countries were generated and integrated into version 3.4 of the ecoinvent consequential database. The total electricity production originating from these countries accounts for 77% of the current global electricity generation. The goal of this article is to provide an overview of the methodology used to calculate the marginal mixes and to evaluate the influence of key parameters and methodological choices on the results.

Methods

The marginal mixes are based on public energy projections from national and international authorities and reflect the accumulated effect of changes in demand for electricity on the installation and operation of new-generation capacities. These newly generated marginal mixes are first examined in terms of their compositions and environmental impacts. They are then compared to several sets of alternative electricity supply mixes calculated using different methodological choices or data sources.

Results and discussion

Renewable energy sources (RES) as well as natural gas power plants show the highest growth rates and usually dominate the marginal mixes. Nevertheless, important variations may exist between the marginal mixes of the different countries in terms of their technological compositions and environmental impacts. The examination of the modeling choices reveals substantial variations between the marginal mixes integrated into the ecoinvent consequential database version 3.4 and marginal mixes generated using alternative modeling options. These different modeling possibilities include changes in the methodology, temporal parameters, and the underlying energy scenarios. Furthermore, in most of the impact categories, average (i.e., attributional) mixes cause higher impact scores than marginal mixes due to higher shares of RES in marginal mixes.

Conclusions

Accurate and consistent data for electricity supply is integrated into a consequential database providing a strong basis for the development of consequential Life Cycle Assessments. The methodology adopted in this version of the database eliminates several shortcomings from the previous approach which led to unrealistic marginal mixes in several countries. The use of energy scenarios allows the evolution of the electricity system to be considered within the definition of the marginal mixes. The modeling choices behind the electricity marginal mix should be adjusted to the goal and scope of individual studies and their influence on the results evaluated.

     

The effects of quantity and quality of prey on population fluctuations in three seabird species

Capsule Population sizes of Common Guillemots Uria aalge, Razorbills Alca torda and Lesser Black‐backed Gulls Larus fuscus were associated with prey abundance but not prey quality.

Aims To examine how the abundance and quality of prey fish affects seabird population size and to test the ‘junk‐food’ or nutritional stress hypothesis.

Methods Analysis of long‐term seabird population size data and Sprat Sprattus sprattus biomass and age‐related weight data using a correlative approach.

Results De‐trended seabird and Sprat population data showed that the abundance of Sprat, the main prey species, was associated with the abundance of seabirds, while no effect of age‐related size of prey on seabird population size was found.

Conclusion As the Sprat population increased so did the seabird populations, regardless of decreases in ‘quality’ of Sprats, implying that more prey fish simply seem to mean more food in this marine ecosystem. No support for the ‘junk‐food’ hypothesis was found and the results contradict suggestions from earlier studies that prey quality is important to top‐predators in the Baltic Sea.     

Thailand's fisheries: A victim of 200‐mile zones

Abstract

During the 1970s, Thailand emerged as the major distant‐water fishing nation in Southeast Asia. By the 1980s, Thailand's neighboring states had introduced 200‐nautical‐mile economic zones with the consequence that the Thai fishing industry faces a loss of approximately 300,000 square kilometers of fishing grounds that had been utilized by the Thai trawler fleet. The Thai fishing industry will face a difficult time in the next decade as neighboring states take action to remove foreign vessels from their 200‐mile zones and the Thais are forced into their small zones in the Gulf of Thailand and Andaman Sea. Thailand, as a developing country with a distant‐water fishing fleet, is a victim of the 200‐mile economic zones.     

Mortality decline in Latin America: Changes in the structure of causes of deaths, 1950–1975

Abstract

In this paper we study some of the characteristics of the process of mortality decline in Latin America during the years 1955 and 1973. This is done by analyzing the levels of overall mortality and cause‐specific mortality and their changes in the period indicated, and by examining the relation between levels of mortality and their changes and a set of endogenous variables measuring socio‐economic conditions. This analysis is intended to measure in a somewhat crude manner the effects of diffusion of medical technology vis à vis the effects of changes in socioeconomic conditions.     

A meta-analysis of the life cycle greenhouse gas balances of microalgae biodiesel

Purpose

Microalgae biodiesel has attracted considerable attention as a potential substitute for fossil fuels and biodiesel from food crops. Nevertheless, its reported climate impacts in the scientific literature vary significantly. This article describes and synthesizes the range of results found in the life cycle assessment (LCA) literature regarding microalgae biodiesel studies to investigate whether particular parameters, e.g. technologies, were associated with higher or lower greenhouse gas (GHG) emissions so that a best practice can be inferred from currently available LCA data and thereby recommended.

Methods

A systematic literature review and meta-regression analysis (MRA) of 36 LCA studies that report on the GHG emissions of microalgae biodiesel was conducted. An assessment of key aspects, including modelling choices and technologies, was performed. Furthermore, MRA models were formulated considering several variables of interest describing both technical and modelling choices to identify the main causes for the variability in GHG emissions per MJ of biodiesel. Variables chosen include: microalgae species; culture medium; cultivation system; source of CO₂; extraction technology; conversion technology; system boundary; geographical scope; inclusion or exclusion of capital goods; and how multifunctionality was handled.

Results and discussion

The reviewed studies altogether reported 308 results ranging from ?0.7 to 3.8 kg CO₂ eq. MJ^?1_biodiesel, portraying 19 different system configurations. Despite the comprehensive range of variables assessed, the models generated could not plausibly explain that the variability in GHG emissions depends either on the technologies considered or on the methodological choices adopted. However, the following relationships could be observed: location in Europe and high oil productivity were associated with lower emissions, whilst dry extraction should be avoided for leading to higher GHG emissions, on average.

Conclusions

There is a large degree of variability within the technologies considered, as well as the methodological choices adopted, so that no robust conclusions could be drawn from the MRA. Notwithstanding, average GHG emissions reported were more than twice as high as fossil diesel and, while there are some studies showing large benefits, none of the various algae technologies performed consistently better than fossil diesel, questioning the climate-mitigation potential of microalgae biodiesel.