Fish Trade Research Articles

Maturation, reproduction, and larval culture of pomacentrids for the ornamental fish trade: successes and challenges

Maturation, reproduction, and larval culture of pomacentrids for the ornamental fish trade: successes and challenges

‘Where there is fish, is where I put my head’: Challenges of mobile fishers in Elmina fishing community in Ghana

Small‐scale fisheries are crucial for improving livelihoods by providing fisher employment, and food security. As part of their work, fishers frequently move to different fishing communities to catch and trade in fish. This paper analyses the living circumstances of artisanal fishers and discusses their mobility patterns, lodging arrangements, and the difficulties they encounter as they carry out their work. This paper is based on a study that involved 385 artisanal fishers in the fishing community of Elmina in the Komenda Edina Equafo Abirem (KEEA) Municipality in the Central Region of Ghana. The results show that there are not many suitable places to stay for fishers when they travel from home to other fishing locations, and the few places that do offer affordable lodging also lack toilets, bathrooms and drinkable water. The paper also reflects on the gendered dynamics of these and related issues of insecurity for women in this case study. District authorities whose economies are heavily dependent on fishing ought to collaborate with private housing developers and the state to build affordable lodging facilities with standard household amenities like water, toilets and baths in fishing destinations to address the housing issues faced by fishers while travelling.

Molecular Barcoding: A Tool to Guarantee Correct Seafood Labelling and Quality and Preserve the Conservation of Endangered Species.

The recent increase in international fish trade leads to the need for improving the traceability of fishery products. In relation to this, consistent monitoring of the production chain focusing on technological developments, handling, processing and distribution via global networks is necessary. Molecular barcoding has therefore been suggested as the gold standard in seafood species traceability and labelling. This review describes the DNA barcoding methodology for preventing food fraud and adulteration in fish. In particular, attention has been focused on the application of molecular techniques to determine the identity and authenticity of fish products, to discriminate the presence of different species in processed seafood and to characterize raw materials undergoing food industry processes. In this regard, we herein present a large number of studies performed in different countries, showing the most reliable DNA barcodes for species identification based on both mitochondrial (COI, cytb, 16S rDNA and 12S rDNA) and nuclear genes. Results are discussed considering the advantages and disadvantages of the different techniques in relation to different scientific issues. Special regard has been dedicated to a dual approach referring to both the consumer's health and the conservation of threatened species, with a special focus on the feasibility of the different genetic and genomic approaches in relation to both scientific objectives and permissible costs to obtain reliable traceability.

Pemanfaatan Limbah Industri Pengolahan Kayu Sebagai Sumber Energi Arang Alternatif di Kota Jayapura

The waste of sawdust and wood chips in the wood processing industry in Jayapura City has not been utilized properly and maximally, but only as firewood. In fact, this waste has a large enough potential to be developed as a raw material for making charcoal briquettes. This research method analyzed the calorific value of 5 (five) treatments using Completely Randomized Design, using 5 (five) repetitions so that the total treatment was 25 (twenty five). The treatment in this study was T0: 100% sowang wood charcoal, T1: sawdust/merbau wood chips (90%) + 10% tapioca flour, T2 : sawdust/merbau wood chips 70% + sawdust/mixed jungle wood chips 20% + 10% tapioca flour, T3: 45% merbau sawdust/wood chips + 45% mixed jungle sawdust/wood chips + 10% tapioca flour, T4: 20% merbau sawdust/wood chips + sawdust/wood chips mixed jungle 70% + 10% tapioca flour. The results showed that T0: 100% sowang wood charcoal produced the highest calorific value, namely 7,619 cal/gram compared to other treatments. The highest calorific value of charcoal briquettes is the T2 calorific value treatment: 70% merbau sawdust/chip + 20% mixed sawdust/jungle wood chips + 10% tapioca flour, with a calorific value of 6,230 cal/gram and charcoal briquettes when it has been produced regularly commercially, grilled fish traders and satay traders are willing to use charcoal briquettes from wood processing industry waste. Key words: wood waste; alternative fuel; charcoal briquettes.

Fish availability, marketing system and value chain analysis of some important commercial marine species at local markets of Cox’s Bazar, Bangladesh

The diversity of fish is crucial for aquatic resources of Bangladesh to be sustainable in the future. Fish biodiversity is threatened by stresses brought on by overfishing, climate change, habitat loss, eutrophication, and pollution. In order to make recommendations for effective management of a fish marketing system in Cox's Bazar, this research was created to look at the availability of fish species, marketing channels, value chain analyses, and constraints connected with three fish marketplaces. Primary data were collected by using questionnaire interviews, Participatory Rural Appraisals (PRA) and cross-check interviews with key informants from Kolatoli, Baharchara, Boro Bazar fish markets for almost two months from the midway of September 2021 to November 2021. Data were analyzed using Microsoft Excel Software. A total number of 96 fish and shellfish species were recorded during the study period in the three fish markets of Cox’s Bazar. Fish market was dominated by the Hilsa fishes (22%) followed by pomfret (14%), seabass (11%), Bombay Duck (9%), Ribbon Fish (8%), Croaker (8%), Tuna (7%) and other species. Hilsa was dominated in the studied market because all of the markets are located in the Southern coastal belt. Among freshwater fishes, species such as Kajuli, Bheda, Gulsha tengra, Tara baim, Shal baim, Tit punti, Rani, Lomba chanda were rare and Gura tengra, Guchi baim, Kakila, Darkina, Dhela, Gutum were very rare in the market due to inadequate supply. Price of Golda chingri (Macrobrachium rosenbergii) (600-1200 tk/kg) and large size Hilsha (800-1200) were always high in all of the three markets. In the distribution channel of the fish trade, three tiers of market or marketing systems were observed: primary, secondary and final consuming markets. The landing area's main attraction was the primary market. Following the primary and secondary markets, the consumer market had a substantially larger marketing margin and revenue. Inadequate ice facilities as well as lack of preservation facilities were highlighted as the key problem at three fish markets in Cox's Bazar during the current study.

Bronze Fish

Abstract The Bronze Age was a time of pivotal economic change when new long-distance trading networks became associated with a macro-regional division of labour and decentralised political complexity. These developments occurred against the background of a shifting mosaic of subsistence patterns, which included the east-west exchange of crops across Eurasia and (in some areas) greater use of secondary products. As Bronze Age economies became more specialised and diverse, it might be assumed that there was also an increased emphasis on the procurement and trade of fish and other marine resources. However, archaeological analyses of such resources are limited in contrast to land-based subsistence patterns and many questions remain. This essay aims to build a broad interpretive framework for analysing the role of marine resources in the Bronze Age. Our provisional results find that an increased emphasis on specialist systems of agropastoralism reduced the use of marine resources in many parts of Eurasia during this period. However, evidence from Japan and the eastern Mediterranean suggests that, at least in some regions, marine resources became commodities traded over long-distances by the late Bronze Age, though this requires further quantification. Island Southeast Asia displays a different pattern from other regions considered here in a greater continuity of marine resource use from the Neolithic into the historic era, perhaps due to a lower reliance on agropastoralism.

Sustainable Ornamental Fish Aquaculture: The Implication of Microbial Feed Additives.

Ornamental fish trade represents an important economic sector with an export turnover that reached approximately 5 billion US dollars in 2018. Despite its high economic importance, this sector does not receive much attention. Ornamental fish husbandry still faces many challenges and losses caused by transport stress and handling and outbreak of diseases are still to be improved. This review will provide insights on ornamental fish diseases along with the measures used to avoid or limit their onset. Moreover, this review will discuss the role of different natural and sustainable microbial feed additives, particularly probiotics, prebiotics, and synbiotics on the health, reduction in transport stress, growth, and reproduction of farmed ornamental fish. Most importantly, this review aims to fill the informational gaps existing in advanced and sustainable practices in the ornamental fish production.

Local Knowledge and Innovation: An Ethnographic Study of Fishing Technology in Banjar Regency's Freshwater Environment

The goal of this anthropological investigation is to examine how fishing technology innovation in Banjar Regency relates to local knowledge. Using ethnographic techniques, such as participant observation and semi-structured interviews, this study was carried out over the course of six months, from January 2022 to June 2022. Interviews were conducted with 30 people, including 20 fisherman, 5 fish traders, and 5 representatives of the local administration. Following that, the concepts were put into categories. The study's conclusions shed light on the nuanced interplay between conventional wisdom and cutting-edge fishing techniques and showed that local communities ought to be included in the management of freshwater resources. The study also emphasizes the value of striking a balance between profitability and sustainability in fishing methods and emphasizes the necessity for ongoing research and cooperation between government organizations, academics, and local people to overcome the difficulties of sustainable fishing methods. Overall, the results point to the necessity of integrating traditional knowledge into contemporary fishing methods for sustainable fisheries management, and show that excessive reliance on fishing equipment has led to the loss of fish populations and the degradation of the freshwater ecosystem.

Socioeconomic effects of the COVID-19 pandemic on artisanal fishing in Senegal: Adaptation strategies of actors in the fishing ports of Dakar and Mbour

By considering the economic and social contribution of Senegalese artisanal fisheries to the national economy, this study firstly provides elements of analysis of the disruptions caused by the coronavirus pandemic in the fishing sector. Secondly, it lifts the veil on the adaptation strategies of the actors concerned. The field surveys reveal that the response measures of the authorities have affected the production, distribution, and marketing chains of fisheries products. The results show a remarkable decrease in landings. The landings of pelagic fish species in Ouakam, Hann, Soumbédioune, and Mbour fishing ports have decreased by −10.11%, −61.25%, −9.75%, and −18.98% proportionately. The same downward trend for demersal fish species was observed, except in Ouakam fishing port. The landing increased slightly to 29.28%. Also, significant income losses have been reported, particularly by fish traders, following the closure of the air borders and the decrease in the selling prices of species formerly destined for export. Thus, faced with this problem, the artisanal fishermen have developed site-specific strategies to continue their activities, which have slowed down. However, this pandemic has paralyzed artisanal fisheries activities, demonstrating the need for this study to strengthen the economic resilience of the sector.

Fish Trade Futures: Counter-Archives and Sex Worker Worlds at the Margins of St. John's Harbour

Abstract: This article imagines the sociohistorical lives of trans women (and) sex workers in Ktaqmkuk (Newfoundland) as deeply entangled with ecological relations of so-called Canada's Atlantic coast—particularly the cultural and economic politics of fish trade at St. John's Harbour. Feeling fishy, a trace of transfeminine sex worker expressive culture and vernacular performance, comes to signify an evocative autoethnographic approach to trans sex worker research-creation at the water's edge. Poetic, illustrative, and sculptural play as both counter-archival worldmaking and critical address here emphasize power in creative approaches to trans and sex worker history and folkloristics. Building on art and scholarship immersed in transness and Newfoundland folklore, with mermaids and oceanic beings as guides, I explore trans and sex worker embodiments, desires, and subjectivities in marginal geographic zones. With/holding becomes a way to question the legitimacy of White settler colonial gestures toward extraction, curation, and preservation practices.

Fish Trade Futures: Counter-Archives and Sex Worker Worlds at the Margins of St. John's Harbour

Abstract: This article imagines the sociohistorical lives of trans women (and) sex workers in Ktaqmkuk (Newfoundland) as deeply entangled with ecological relations of so-called Canada's Atlantic coast—particularly the cultural and economic politics of fish trade at St. John's Harbour. Feeling fishy, a trace of transfeminine sex worker expressive culture and vernacular performance, comes to signify an evocative autoethnographic approach to trans sex worker research-creation at the water's edge. Poetic, illustrative, and sculptural play as both counter-archival worldmaking and critical address here emphasize power in creative approaches to trans and sex worker history and folkloristics. Building on art and scholarship immersed in transness and Newfoundland folklore, with mermaids and oceanic beings as guides, I explore trans and sex worker embodiments, desires, and subjectivities in marginal geographic zones. With/holding becomes a way to question the legitimacy of White settler colonial gestures toward extraction, curation, and preservation practices.

Analysis of King Cobia Fish Commodity Value Chain as an Effort to Increase the Value of Frozen Fish Products

King Kobia is a rising marine fish commodity and continues to be socialized by cultivators in Pangandaran. Weaknesses of fishery products include the fast decay process, so to prevent this process, proper handling techniques are needed so that the freshness and quality of the fish are guaranteed. This study aimed to map the flow of king cobia products, analyze the king cobia value chain, analyze the added value, and describe the obstacles that exist in the processing and marketing of product value. The type of research used is descriptive research. Descriptive research aims to describe something by describing, recording, analyzing, and interpreting the conditions in a value chain of king cobia fish commodities. Data collection through literature study, observation, documentation, and interviews with fishermen, MSME actors, and fish traders. Data analysis using Value Chain Analysis. The study found that value chain analysis helps add value in every production stage and delivery of products or services to consumers. This value chain consists of two parts, primary activities, and supporting activities. In contrast, the added value analysis is fish nuggets as an effort to increase the value of frozen fish products.

Artisanal Fishers Knowledge of Covid-19 and the Impact of Lock Down on Fishing in Igbomotoru Bayelsa State, Niger Delta

The study was conducted with the aimed of identifying the impact of COVID-19 lock down on Artisanal Fishers and fishing operations. Data was collected through face-face interview. Fishers who had 15 years of fishing experience and above were involved in the research. Results showed that Fishers were well informed of COVID-19 pandemic. There was no case of COVID-19. Fishers could read and write as they had the basic primary education. Restriction on movement had major setback on the fishing operations of fishers and intermediaries given the low fish price and reduced movement of fish traders. Landings were very good during lock down. Poor before lock down dwindled down to good after the lock down due to human activities.

Topology and evolution of international trade network for fish and fish products

In this study, a complex network method was employed to quantify the changing role of countries in fish trade and the dynamic characteristics of fish globalization. Based on the United Nations Comtrade Database, the International Trade Network for Fish and Fish Products (ITN-Fish) was constructed as a series of weighted-directed networks for each year from 1990 to 2018. Almost all countries and territories worldwide have participated in the fish trade. In 2018, the network identified 229 fish traders. The share of developing countries in imports and exports has increased. Traders actively establish new trade relations, which improve network connectivity. However, these relations only account for a small part of the fish trade. The high connectivity allows risks to spread rapidly in the world through hubs such as the United States and China, which raises concerns about the robustness of these weak links in the Sino-US trade conflict and the outbreak of COVID-19. However, we have optimistic expectations on this issue. The dynamic of network topology property shows that the globalization of fish trade flourished between 1990 and 2018. Although, due to the financial crisis and its subsequent impact, the total amount of fish trade declined in 2009 and 2015, the network structure was not seriously affected, and the trend of topology property remained unchanged. Based on the construction of the international trade network, its node attribute, and its structural attribute, fish trade maintains the trend of globalization. Countries should actively adhere to trade globalization to promote the development of the fish trade.

Determinants of COVID-19 masking among artisanal fisherfolks in Ghana: the role of time discounting

PurposeDaily COVID-19-related morbidity and mortality rates are still high globally, and masking is considered a reliable method of preventing its infections. Yet, the rate of voluntary compliance with masking remains very low in most parts of the world, especially in developing countries. The authors hypothesize that the decision to wear a mask entails some benefit-cost analysis that involves time discounting. In addition, the authors surmise that feel-good benefits from pro-social behavior and from wearing fashionable masks are substantial.Design/methodology/approachThe study is based on a survey of 900 fishermen and fish traders in Ghana. A simple experiment was designed to elicit individual rates of time preference. In addition, the fishers were asked questions about their political affiliation and knowledge of the COVID-19 pandemic, among others. A logit model is used to investigate the determinants of the decision to wear a mask.FindingsThe authors found that masking compliance increases in time discounting for fishmongers, suggesting that private benefits from pro-social behavior or feel-good benefits from wearing a mask are very strong. In addition, those who belonged to the ruling political party were more likely to wear a mask. Other factors increasing the likelihood of masking include affiliation with the ruling political party, knowledge of COVID-19 and knowledge of someone who lost his/her job due to COVID-19.Originality/valueTo the best of the authors’ knowledge, this is the first study to investigate the effect of time discounting on the voluntary compliance of a health safety measure, which could provide a direct utility. In addition, the study explores the effect of political affiliation on voluntary masking behavior.

Value chains and market access for aquaculture products

AbstractAquaculture contributes significantly to global food security, poverty alleviation, and international fish trade. Aquaculture products have become some of the most globalized food commodities, attracting the interest of diverse stakeholders that scrutinize industry developments, through the lenses of the global value chain (GVC) approach to analyze and understand the dynamics and roles at value chain nodes of key players, economic costs and benefits, value addition and value creation and to develop policy options and suitable market instruments for the promotion of sustainable aquaculture. Key characteristics of the aquaculture GVC are that most of the production takes place in developing countries, involving mostly small‐scale operators, while 60 to 70% of the demand (in value) occurs in Europe, North America, and Japan. As a consequence, the institutional and operational capacity of the producing countries is challenged to comply with increasingly demanding regulations and standards for consumer protection, social, and environmental requirements in order to participate actively in the aquaculture GVC. This article reviews the current status and the issues facing aquaculture value chains. It focuses on the challenges and perspectives for aquaculture value chain development, their main drivers, implications, and opportunities for the future of the aquaculture GVC.

Praktik Jual Beli Tumpukan (Jizaf) dalam Mewujudkan Konsep Keadilan Bisnis Islam

This study aims to understand the practice of buying and selling the stack system (Jizaf) in realizing the concept of Islamic business justice for fish traders in Lonrae Auctions, Bone Regency. This study uses qualitative research with phenomenological, sociological and Shari'a approaches. The data sources for this study come from primary data, namely: 1 fish trader (juragan)and 4 fishermen and secondary data comes from various sources, namely books, journals and other research. Furthermore, the data collection method used by observing, interviewing and documentation. Data analysis in this study went through three stages, namely data reduction, data presentation and drawing conclusions. In this data analysis using the concept of buying and selling Jizaf as data analysis. The results showed that the practice of buying and selling piles (Jizaf) in realizing the concept of Islamic business justice that occurred at the Lonrae Fish Auction in Bone Regency, from the point of view of the pillars of buying and selling jizaf (contracts and people who are in akad) has met the requirements justified in the Muamalah Fiqh rules . However, judging from the aspect of the validity of the contract object being traded, it still creates tadlis and gharar in the buying and selling transaction process. With the elements of usury, tadlis (fraud) and gharar (obscurity) in buying and selling transactions, this is not in accordance with the concept of realizing justice in business because of injustice in buying and selling.

Institutional environment for ensuring the sustainable development of the Russian fisheries complex and the growth of trade with the EAEU countries

The purpose of the work is to study the institutional environment that ensures the sustainable development of the Russian fisheries complex and the changes that contribute to the intensification of fish and seafood trade between the EAEU countriesThe methods used: monographic, statistical, scientific abstraction, logical analysis allowed us to explore the theoretical foundations of the creation of institutions and changes in the institutional environment under the influence of external factors.Novelty: the methodological aspects of the formation of the institutional environment have been clarified and the systematization of institutional changes aimed at ensuring the sustainable development of the Russian fisheries complex and increasing the volume of fish and seafood trade with the EAEU countries has been carried out on the basis of the Technical Regulation “On the Safety of Fish and Fish Products No. (EAEU TR 040/2016), which provides for appropriate requirements for the safety and quality of products.Practical significance: High-level use of the potential of the Russian fisheries complex and increasing the efficiency of control of trade operations with the EAEU countries in the digital environment, minimizing risks and transaction costs caused by changes in the institutional environment to ensure mutually beneficial trade in fish and seafood.

Methodological approaches to assessing the quality of fish food products using sensory analysis: scientific review

The purpose of the work: to propose express methodological approaches for establishing the quality and ensuring the safety of fish food products based on the use of sensory analysis, based on the results of a scientific review.The methods that were used: a descriptive-analytical research method was used, a theoretical analysis of scientific, reference and methodological literature, as well as international and national regulatory documents in the field of organoleptics (sensorics) of food products was carried out.The element of novelty is the systematization of information on methodological approaches to assessing the quality of fish food products using sensory analysis, followed by the development of a methodological manual for use in the fisheries industry.Research results: determination of methodological system techniques for organoleptic (sensory) assessment of the quality of raw materials of aquatic origin and food products from it.Practical significance: the possibility of using operational approaches to assessing the quality and safety of fish food products as express methods. The research materials will be used in the preparation of a methodological manual on quality control and safety of fish food products using sensory analysis for use in the fish processing industry and trade, for the implementation of control and supervisory measures, as well as for use for educational purposes.

Gendered spaces and entanglements: analysis of fisher couples’ decision-making and practices in Ghana’s Western region

This paper seeks to examine the agentic role of the physical spaces (e.g. landing beach, fish market and fish processing kitchen) within which fishery tasks are undertaken as they entangle with human, non-human, and discursive forces to co-create gendered subjectivities in fisher couples’ decision-making and practices. The paper is based on larger ethnographic study on fisher couples’ decision-making and practices in Ghana’s Western region, using participatory ethnographic observation including photo elicitation, vignettes and 38 in-depth interviews. Findings from the study indicate that the fish landing beach (consisting of sea water and sandy coast) played active roles in the kinds of tasks men and women could perform. The ability of the sea water to wet women’s long dresses, coupled with their menstrual body and discourse of women as unclean worked together to limit women’s ability to engage in activities, such as fishing. In terms of fish processing and trading, the study showed that the enclosed nature of fish processing kitchen served as a protective force which prevented public scrutiny of couples’ household practices to allow for husbands to help their wives in fish processing and storage. In instances of disagreement, the bedroom played a protective role where couples settled their differences on somewhat equal ground. Tracing the agentic and constitutive role of spaces, shift our focus from a purely social understanding of gender towards a holistic view of the multiple and complex pathways through which the environment and matter combine with discourses to co-create continuous and flexible (re)iterations of gender emergences.