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Purpose – Scientific studies have shown that the coastal zone is one of the regions showing great vulnerability to the impacts of global environmental change. For the region, impacts that may directly affect the economy and daily life of the communities of coastal municipalities were predicted. It occurs from phenomena, e.g. temperature rise, sea level rise, salinity, acidification of the seas and extreme events.

Methodology/approach – The mariculture labourers and artisan fishers from the Cocanha beach (Caraguatatuba city, north coast of the state of São Paulo), a lookout group, are the first persons to perceive the environmental change impacts in their daily contact with natural resources. Thus, the aim herein was to (a) verify their perception on the amount and quality of mussels and fish catch and (b) if such changes could be related to global environmental changes. In order to do so, semi-structured interviews with this social group were conducted in November 2009–February 2011 and codified by using the NVIVO8 software.

Findings – The results indicated a decrease in fish stocks and, according to interviewees, such decrease was tied in with changes in fishing, in climate, and in beach landscape. Moreover, the category related to increased water temperature was highly significant, since the fishing and mariculture activities are directly influenced by this factor.

Research limitations – The perception evaluation through interviews with artisanal fishermen and shellfishermen implies that many subjective aspects are present, as well as the role of the media that has published significant information on climate change in the contemporary world.

Originality/value of paper – There are few studies that present these perspectives; however, the authors believe that it is possible, while recognising the possible limitations of the method, to recognise something that is already perceived by the community and may help to evaluate the reality they face and to contribute actually to the construction of future public policies.

The purpose of this work is to study the relationships of trust in a local agri-food supply chain in Southern Brazil. In an unsustainable context, where the number of mariculturists is decreasing, the authors seek to identify what the factors are and how they contribute to this problem, as well as find solutions aimed at the sustainability of that chain.

The authors carried out qualitative research with 15 semi-structured interviews that took place in the year 2021. The thematic analysis of the results applied the IRAMUTEQ software and the assessment of the narratives was guided by prior thematic analysis.

The supply chain under investigation requires better organisation. Communication and interpersonal trust proved important in the relationship between producers and control bodies. The university, as a seed supplier, needs predictability and efficiency to convey inter-organisational trust. Informal relationships are interpersonal and extremely trust-based and inter-organisational trust increases the performance of establishments and promotes the development of innovative structures. Furthermore, in crisis periods interpersonal trust increases.

The results allow policymakers to plan better their actions and build more effective tactics in order to reach sustainable development. This work is also important for stakeholders and managers, as it guides improvements in management, governance and sustainability of agri-food supply chains.

An unprecedented research was done on the studied supply chain, knowing the relationships of trust among them, identifying peculiar partnerships and recognising some constructs and outcomes of trust.

Hong Kong's largely unregulated fisheries are in a state of biological and economic decline. The government has proposed new fisheries management regulations which will likely restrict fishing effort. Thus, the purpose of this study is to investigate: fishers' willingness and capacity to switch to alternative jobs or livelihoods; and the feasibility of the marine recreation sector to provide alternative employment options for fishers.

The authors conducted interviews to find out about perceptions and attitudes towards the proposed management regulations, and alternative livelihood options for fishers. They interviewed participants in the fisheries sector (mainly fishers) and the marine recreation sector. A questionnaire was also mailed or faxed to marine recreation businesses throughout Hong Kong.

It was found that up to 75 per cent of fishers interviewed were generally willing to leave the fishery if they were provided with adequate compensation, but they were not optimistic about finding suitable jobs due to their limited skills and education. About 55 per cent of marine recreation respondents said they would consider hiring fishers; however, there were unlikely to be sufficient jobs for all the potentially displaced fishers. Hence, fishers have to look outside the marine sector for alternative livelihoods.

The results highlight that a sizable portion of fishers are willing to depart from “their way of life” under the right conditions. This indicates that, the government can help restore Hong Kong's fisheries and fisher livelihoods by providing appropriate training and designing acceptable compensation packages for fishers.

The study reported in this paper is significant because it shows that fishing is no longer economically profitable for Hong Kong's fishers, a situation which can largely be attributed to the lack of fisheries management in Hong Kong, which has dissipated biological and economic productivity of the fisheries' resources.

Examines one of the hypothetical economic policy options for international fisheries management, namely a national transferable quota (NTQ). Special emphasis will be placed on an examination of the voluntary agreement on the Antarctic whaling quota in 1962, as well as the trend in recent southern bluefin tuna (SBT) fisheries. An examination of the Antarctic whaling agreement, from a standpoint of economic efficiency, indicates that the 1962 agreement resulted in Pareto improvement. The trend in recent SBT fisheries also shows the economic rationalization between Japan, Australia and New Zealand. These events indicate that NTQ as an economic policy option has been unconsciously applied in international management systems in order to achieve mutual and effective agreement among the countries. It is, however, important to consider the possibility of an international monopolistic supply situation if the decision makers decide to implement this option. Discusses the possibility of third‐degree price discrimination in relation to the SBT.

Provides statistics on trends in the quantity of publications of Clem Tisdell, changing patterns of their joint authorship and variations in their interdisciplinary nature. The genesis of his publications, particularly his books, is explained, along with the interdependence between them, relationships which would be far from obvious to an independent casual observer. Those publications have had further academic and personal consequences and have given rise to surprising opportunities. A similar study is undertaken of his research projects. His consultancies are briefly discussed and it is demonstrated how they have benefited his academic research and teaching. He has found that economics provides tremendous scope for versatility and diversity in exploring the world around us.

Climate change adaptations are today pursed globally to address the threats associated with climate change. The IPCC Third Assessment Report and the Fourth Assessment Report have outlined the most accurate changes to be expected by 2100 with the only uncertainty relating to the timing and magnitude of these changes, not their occurrence (IPCC, 2007). In Small Island Developing States (SIDS), the changes are already manifested through coastal flooding, erosion, salt water intrusion, damaged water sources, and increased storm damages. SIDS are also under threat from their rapidly increasing population that needs settlements, services, and facilities, their limited size that severely confines their options, and their poor resources both in terms of weak financial position and restricted human capacity. This is the reason why SIDS, which will be the first and worst victims, must devote more concerted effort to adapt to these eventualities.

The aim of the paper is to gain a wide picture of competitive aspect of tuna farming industry, show its impact on the economy and society in Croatia, and to identify possibilities for improvement of current and future industry‐involved companies.

Research methodology used was desk research using benchmark of relevant published papers and analysis of official statistical data. Based on information gathered, the author developed its own analysis of a current state in the industry.

The paper provides an overview of tuna farming industry in Croatia, showing place for increasing the production due to stable demand but also the unused demand in domestic market. Still, there are a lot of barriers as a legal regulations, limited space and lack of supporting industries. With the involvement of companies and the country's representative bodies, the industry has potential to develop into stable economic activity.

Tuna farming is based on seacoast and thus improves the demographical picture of those, usually sparsely populated areas. Also, it encourages the fishery of small pelagic fish.

The paper analyses tuna farming industry from its economic aspects, providing information and the base for further research of its economic potential and attraction.

Published by the Science and Technology Division of the Library of Congress since 1972, the Tracer Bullet series is an underused reference source available in many library and government documents collections. The Tracer Bullets cover a wide variety of subjects in the natural and physical sciences and technology. Each one is devoted to a specific topic and is designed “to help a reader begin to locate published material on a subject about which he or she has only general knowledge.” Developed in the style of a library pathfinder, each explores the resources available, listing texts, handbooks, encyclopedias, dictionaries, bibliographies, government documents, and journal articles. Addresses and telephone numbers of relevant organizations are also included as are appropriate Library of Congress subject headings to use in locating additional material.