Search Results (27)

Holothurian fisheries have become a prominent métier in the Mediterranean due to increasing worldwide demand for sea cucumbers. In these newly explored grounds, their fisheries are poorly understood, especially considering the applied tactics and socioeconomics of the harvesting fleet. This study examines the small-scale holothurian (Holothuria) fishery métiers and associated socioeconomics in the Hellenic Seas—a main Mediterranean fishery ground. Holothuria fishing licenses increased in 2020 and stabilized (130) in the next years. Holothuria poli and H. tubulosa are the target species, caught by hand, using the surface air supply method or free diving. Most fishermen harvest holothurians close to the port of origin, and only the fleet from Kalymnos exploits remote grounds over the Greek territory. According to harvesting tactics, three economically viable métiers are practiced; however, shifting to alternative fishery resources is necessary to grant annual income. Sea cucumbers are sold fresh from fishermen to merchandisers who process the catch into final products (trepang) and export them. For most fishermen (64.7%), fishing for holothurians is the main occupation, gaining a highly variable monthly income (EUR 700 to 4000). The presented results refine the métiers and associated economics of an active holothurian fishery fleet, providing essential information for the viability of coastal fishery societies. Full article

The extent to which fishery ecological protection policy objectives are aligned with fishermen’s preferences is central to their participation in environmental protection behavior and can enhance their utility. In this study, survey data are analyzed from 352 fishing households in Weihai City, China, using the choice experiment method and a random parameter logit model to examine the differences in the fishermen’s target preferences for fishery ecological protection measures and their behavior in terms of participation in environmental protection. The results indicate that incorporating fishery ecological policy objectives into conservation programs significantly increases the fishermen’s enthusiasm for environmental protection and their willingness to participate, reflecting their ecological and social rationality. In addition, the environmental protection behavior of fishermen is influenced by their ecological awareness of fisheries, risk perception, willingness to pay, per capita annual income, employment status, number of laborers, fishery technology training, participation in cooperatives, and education level, in addition to other important factors, including the economic conditions and social background. Therefore, designing fishery ecological protection plans that incorporate various policy objectives from which fishermen can choose provides effective decision support and practical pathways for fishery ecological protection and sustainable development. The effective alignment of policies with fishermen’s preferences can thereby enhance their participation in environmental protection. Full article

ICAR-CIFRI has been continuously working to develop wetland fisheries in a transdisciplinary knowledge-to-action mode to upscale the livelihood of vulnerable small-scale fishermen communities. The integrated development approach was initiated in different lower Gangetic floodplain wetlands of North 24 Parganas, West Bengal, India, to increase the fish production and socio-economic development of small-scale fishermen communities of the wetlands. Duma is one of the most extensive horseshoe-shaped wetlands in Asia. To augment the fish production from this wetland, the pen culture system was adopted by the fishers under the supervision of ICAR-CIFRI in 2021. Within a year, they received 15 tons of commercial fish, valued at around 30 lakhs apart from the small indigenous fish. It has recently been advised that auto-stocked, high-value minor carp in the wetland be adopted to improve income and conserve small indigenous species. In this article, SDG 14 (Life below water) addresses sustainable ecosystem management and livelihood enhancement for the wellbeing of the local people (SDG 3). Nutritional security of the local people is maintained through the small indigenous fish species which is crucial for addressing ‘No hunger’ as per SDG-2. The research also proves that women can play a crucial role in small-scale fisheries and they can economically stand alone, which is the main aim of SDG-5 (gender equality). However, significant issues such as lack of jurisdictional coordination, ecological changes, inequitable distribution of benefits, and income reduction persist in wetland management. The need for urgent reformation of policy and resource management systems is crucial to boost the economic efficiency of the SSF in the wetland. Training for more knowledge on fishing and fish farming, acquiring alternative livelihood and education on financial management should be brought to the fishermen’s communities. These could develop a resilient community that is more equipped to respond to future crises. Full article

Forage fish, a crucial source of nutrition in developing countries, are, unfortunately, primarily used for fishmeal and aquafeed production for aquaculture, which mainly serves consumers in developed countries. Industrial fish use leaves a meager portion of the catch available for direct human consumption in these fish-producing countries, leading to inflated fish prices locally. Overfishing forage fish due to the needs of the reduction fishery industry disrupts the ecosystem, diminishes the catch of larger fish, such as mackerel, and marginalizes local artisanal fishermen. This article briefly appraises the financial and nutritional impacts of elevated fish prices on low-income consumers in forage-fish-producing countries, drawing attention to the ethical implications of this situation. By reducing the supply to the industry, a hypothetical 10% boost in the annual supply of fresh forage fish to the current global supply of 5 million Mt (metric tons), markets could save consumers annually hundreds of millions of US dollars globally, tens of millions of US dollars nationally, and several dollars for families while improving the nutrition of families that depend on forage fish. The numbers suggest that even a modest supply shift from industry to the supply of forage fish to fresh fish markets could significantly benefit fish-producing nations and consumers. In some countries, such as South Africa, the orders of magnitude of these sums approach those of the entire value of local fish reduction industries. Increased fish prices could be considered involuntary subsidies by low-income consumers to the aquafeed and aquaculture industries. In summary, the current use of captured forage fish in reduction industries and aquaculture warrants further scrutiny, as it inadvertently burdens disadvantaged societies financially and nutritionally. This article proposes using alternative protein sources and cultivating non-carnivorous fish, among several optional measures, to ensure the equitable distribution of forage fish resources. Full article

The conflict between biodiversity conservation and economic development is intense in developing countries. With the decline in biodiversity, the Chinese government imposed a 10-year fishing ban in the priority waters of the Yangtze River Basin, which resulted in many fishermen losing their livelihood. However, a compensation policy was subsequently introduced. To investigate the impact of the ban, we conducted a two-year study using balanced panel data and the PSM-DID model for 365 households in the Poyang Lake area and introduced fixed effects to discuss the impact of the Yangtze River fishing ban compensation policy on the income of returning fishermen and their choices for alternative income. We also explored the interactive effects of fishing ban compensation and other biodiversity conservation policies on their income. The results showed that the fishing ban negatively impacted the agricultural income of households but not the total household income, and the compensation somewhat subsidized the fishermen’s loss of income. Moreover, this was an opportunity for farmers to adjust their livelihood strategies. These findings improve our understanding of the impact of this fishing ban and compensation policy on the household incomes of returning fishermen and their adaptive strategies for alternative income. Full article

Coastal zones, despite their contribution to global economies, continue to suffer the negative impacts of climate variability, which limit the livelihoods of people, particularly small-scale fishermen. This study examined climate variability, coastal livelihoods, and the influence of ocean change on the total annual fish catch in Ghana’s Coastal Savannah zone. The mixed-methods approach was used to analyze primary data (semi-structured questionnaires and interviews), secondary data (sea surface temperature (SST) and salinity (SSS), and fish catch), and statistical tests (chi-square, binary logistic regression, and multiple regression). Findings revealed a significant increase in climate variability awareness among fishermen, attributed to the influence of broadcast media. However, they lack sufficient information regarding the transformation of cities, the urbanization process, and its impact on the global climate. Increasing temperatures and sea level rise emerged as the most prevalent impacts of climate variability over the past two decades in the zone. Although the fishermen lack awareness regarding the changes in SSS and their effects on fish, the findings of the multiple regression analysis established that changes in SSS exert a more pronounced effect on the decreasing fishing catch in the zone compared to those in SST. Empirical fish catch records supported the fishermen’s claim of a substantial decrease in total fish catch in the zone over the past 20 years. Aside from climate variability impacts, the involvement of many people and light fishing emerged as additional factors contributing to the decreasing fish catch in the zone. High premix fuel prices or shortages and “saiko” activities were the main obstacles that hindered the fishermen’s activities. “Saiko” is an unlawful activity in which foreign industrial trawlers sell fish directly to Ghanaian canoes or small-scale fishermen at sea. The fishermen lack sufficient means of supporting their livelihoods, as there is a lack of viable alternative livelihood options. Additionally, the majority of the fishermen experience symptoms of fever and headaches. The binary logistic regression analysis showed that the fishermen’s income insufficiency could be substantially reduced if they were to have their own houses, canoes, or fish all year. This situation highlights the need for heightened support from policymakers for improved sustainable livelihood prospects as well as health and well-being. Full article

Fish stocking in inland fisheries involves a prey–predator interaction model so that the number of fish stocked affects optimal and sustainable yields. It is very important to make mathematical modeling to optimize inland fisheries management which is part of the blue economy. Currently, studies that focus on predator–prey mathematical modeling in inland fisheries, especially those related to insurance are lacking. The bibliometric database was taken from Google Scholar, Dimensions, Science Direct, and Scopus in the 2012–2022 research years. After further processing, it is displayed on the PRISMA diagram and visualized on VOSviewer to display the update of this research topic. As blue economy sustainability, the management of fisheries sector needs to be reviewed deeply. In this study, the assumptions of the predator–prey mathematical model are made to obtain the equilibrium point, maximum sustainable yield (MSY), and catch per unit effort (CPUE) values. These results can be used to calculate fisheries insurance as a strategy for optimizing sustainable fishermen’s income. Full article

Bangladesh, one of the top fish producers in the world, has rapidly been expanding its annual fish production. However, the COVID-19 pandemic and related preventative measures have had a substantial impact on the nation’s fishing sector. In this study, a survey was performed in the Brahmanbaria subdistrict of Bangladesh to assess the impact of COVID-19 and the subsequent efforts made by the Department of Fisheries (DoF), Bangladesh, to mitigate the negative impact on the culture and capture fisheries. The socioeconomic profile of fishery stakeholders for the years 2019, 2020, and 2021 was used to assess the impact of the COVID-19 pandemic situation on fish farming, fish hatcheries, fish nurseries, the fish feed industry, and the dry fish industry. Data analysis showed that the COVID-19 pandemic had a negative impact on the income of fishery stakeholders and their livelihoods. The income of fish farmers decreased by 47.49% in 2020 as compared to the base year of 2019 but increased by 129.34% in 2021, showing the effects of COVID-19 and mitigation efforts. Transport and movement restrictions adversely affected the culture fisheries while favouring capture fisheries with an increased annual catch. To counter or reduce most of those issues, the DoF, Bangladesh, took necessary steps, such as constructing a virtual control room and engaging the fishermen in some unique activities. Fishermen and other stakeholders benefitted because of farm visits, online training, improved interdepartmental coordination, monitoring of fish-selling marketing channels, activation of the FIAC (Farmer’s Information and Advice Centre), and women’s engagement through the provision of subsidies and loans. The DoF constructed fish sanctuaries and implemented law enforcement in 2020 and 2021 to safeguard the habitat for small indigenous species (SIS). These actions might have improved the stakeholders’ income and the post-pandemic scenario by increasing fish productivity. However, further study is recommended on the effective mitigation measures for drawing a clear conclusion. Full article

This study contributes to investigating the causality of risk assessment attributes under uncertainty for the offshore wind farms development in Taiwan. The investigation of risk assessment attributes for the offshore wind farms development has increasingly attracted more notice as multifaceted challenges from socioeconomic, safety, and environmental perspectives emerged. Yet, the literature is lacking a multi-perspective viewpoint of the determining attributes and an examination of the attributes’ interrelationships using qualitative information. To fill this gap, this study aims to identify the valid attributes based on the multi-perspectives of feasibility, environment, economic, and safety risks, and investigate the attributes’ interrelationships. Thus, this study employs the fuzzy Delphi method to obtain valid risk assessment attributes and adopts a fuzzy decision-making trial and evaluation laboratory method to examine the attributes’ interrelationships while identifying the multi-perspective-based crucial attributes. The results indicate that human safety, impact on marine environment, and navigation safety are crucial risk aspects to be assessed. From the practical point of view, this study found that safety of ship crews and passengers, safety of maintenance crews, local fishery industry, public trust in environmental regulations, and change of income for fishermen are the important risk criteria to be prioritized when developing offshore wind farms. Full article

The CO₂ emissions from marine fisheries have a significant impact on marine ecology, despite generally being overlooked in studies on global climate change. Few studies have estimated the carbon emissions from marine fisheries while taking into account all pertinent sectors. This study evaluated marine fisheries’ CO₂ emissions based on three sectors: marine fishing, mariculture, and the marine aquatic product processing industry. Kernel density estimation and the spatial Durbin model were used to investigate the spatial and temporal characteristics and the key socioeconomic drivers of the CO₂ emissions from marine fisheries in 11 coastal provinces of China from 2005 to 2020. The results are as follows: (1) marine fishing is the sector that produces the most CO₂ emissions; trawling operations generate more CO₂ than all other modes of operation combined; (2) China’s marine fisheries’ CO₂ emissions show a rising, then declining, trend, with significant differences in coastal provinces; (3) the development of the marine fishery economy and trade have a positive driving effect on CO₂ emissions, the expansion of the tertiary industry does not decrease CO₂, the technical advancement and income growth of fishermen are negatively related to carbon emissions, and the effect of environmental regulation has failed to pass the significance test; (4) the carbon emissions of marine fisheries have significant spatial spillover effects. Full article

The aquaculture industry in Taiwan grosses more than USD 1.1 billion annually; however, it also generates considerable waste discharge (causing eutrophication in estuarine and coastal waters) and heavy groundwater withdrawals (causing land subsidence in coastal areas). Many aquaculture facilities using earth ponds are affected by benthic algae, resulting in an earthy odor, and fixed-cage farms are difficult to relocate during cold weather events. In this study, we tested small-scale (~15 ton) mobile cage tanks for the nearshore rearing of white shrimp and grouper in the Yung-An district of Kaohsiung, Taiwan. At the conclusion of the mariculture experiment, the content of free amino acids in shrimp and groupers reared in our mobile tanks surpassed that in animals reared locally in traditional earthy ponds. In a blind taste test involving 42 volunteers, groupers reared in mobile cage tanks were deemed more palatable than those raised in ponds. Our results demonstrate that small-scale mobile cage tanks are a feasible approach to the sustainable rearing of high-quality shrimp or fish. Note that wastewater from the mobile tanks is easily diluted by seawater, thereby reducing the likelihood of eutrophication in coastal regions. The proposed system could also be used for recreational fishing activities to increase income for smallholders of fishermen and/or aquaculture farmers. Full article

Outlying islands are affected by the environment and economy, and fishery resources are the first to experience these impacts. Therefore, it is necessary to actively and effectively transform traditional fisheries in outlying islands. This is the case in Penghu County (Penghu Islands), located on the outlying islands of Taiwan. The transformation to recreational fishery can increase the additional income of traditional fisheries during the fishing moratorium through the development of recreational fishery boats by fishermen. Recreational fishery means the fishery using fishing vessels for recreational purposes or for passengers to harvest aquatic organisms on the reef or to engage in sightseeing on the islets. Therefore, this study will explore the key factors for the successful route planning of fishermen who switch to recreational fishery boats to assist the fishermen in successfully transitioning and enabling recreational fishery to flourish. In the research, using the method of the Analytic Hierarchy Process (AHP) expert questionnaire, it was found that the key factors affecting the route planning of recreational fishery boats are “boat conditions”, “berthing conditions”, “operating environment”, and “sightseeing potential”. After the expert questionnaire, a weight comparison of each level was performed, and it was found that “operating environment” was the most important factor, followed by “tourism potential”. However, the key factors of the “natural environment” and “cultural environment” are more important under the influence of the “operating environment”. Under the influence of “tourism potential”, “attractiveness” is a key factor, as is the “accessibility” factor. In this study, the four main fishing ports in Penghu County were also used for empirical discussion. The study results showed that Magong Fishing Port was the first choice for transformation, followed by Chikan Fishing Port. The results of this study can be used as a reference for fishermen and officials in developing a subsidy scheme for fishing boat operation, and they can be used as a reference for transforming traditional fisheries in outlying islands into recreational fishing to develop recreational fishery boats and leisure tourism industries. This research can help fishermen to attach importance to the development of recreational fishing activities and promote the stable growth of the fishery industry environment. Full article

From 1 June 2010 in the Italian coastal waters of the Northern Adriatic Sea, trawl fishery within three nautical miles became banned. This activity was previously allowed for some species as an exception to legislation. In order to evaluate the consequences both on demersal resources and economic yields of the trawl which will oblige fishermen to trawl beyond three miles, a pilot study was performed. Twenty hauls comparing catch discard and income between hauls within and external to three nautical miles were performed. Results highlighted differences in catch composition both for landing and discard. Landing per unit of effort and discard per unit of effort did not differ in relation to distance from the coast, while income was higher for offshore hauls than inshore ones even if not significantly. Fishery management is a complex task, and the results of this study can contribute to the debate providing new insights into the consequences of the regulation on the trawling within three nautical miles. Considering the high amounts of discard, the habitat damages caused by otter trawling, the presence of juveniles in coastal waters and data regarding fishermen income, this study supports the actual European Community regulation on coastal trawling. Full article

Factors and motivations that drive individuals’ decisions on seafood consumption vary by population group and geographical locations. These factors may differ from one particular species to the other. The purpose of this study is to understand fish/shrimp consumption frequency and consumers’ willingness to pay (WTP) more for shrimp locally farmed in Togo. We used a Poisson model to investigate the socioeconomic factors determining fish/shrimp consumption frequency, and a Heckman Selection model to analyze the extent to which consumers are willing to pay extra for locally produced shrimp. To this end, data on fish consumption were collected through a cross-sectional study that analyzed a quantitative survey of consumers (N = 308). Our results show that the populations sampled attach great importance to the quality of fish they consume. The econometric results indicate that the quality of the fish is positively related to fish consumption frequency while the monthly income and proximity of the sea show negative relationships with the outcome variable. In addition, the factors that influence the WTP for shrimp were consuming shrimp and the amount for expenditure on fish/shrimp consumption. Moreover, consumers are willing to pay, on average, 1.2 U.S Dollars (USD) as an extra amount relative to the average price per kilogram, and the extent of their WTP is positively related to the quality of the fish. However, the age of the respondents shows a negative relationship with the value they are willing to pay. In order to fulfill consumers’ needs and preferences, these findings jointly suggest that exceptional steps by the government are needed to value fish/shrimp in a way that persuades and encourages consumers to consume seafood at any age. More importantly, promoting the consumption of fish and shrimp requires action to help improve their quality. Government should: (a) be communicating and raising awareness more among the population on the nutritional value and health benefits of fish/shrimp consumption; (b) support fish/shrimp production through cost reduction actions for the fishermen who in turn can supply fish/shrimp at reasonable prices that encourage fish and shrimp consumption; (c) take appropriate measures to develop a logistics system as an effort to support fish, especially shrimp, supply in a timely way that might help to keep their good appearance and freshness for the consumers’ benefit. Full article

Changes in the consumption price of aquatic products will affect demand and fishermen’s income. The accurate prediction of consumer price index provides important information regarding the aquatic product market. Based on the non-linear and non-smooth characteristics of fishery product price series, this paper innovatively proposes a fishery product price forecasting model that is based on Variational Modal Decomposition and Improved bald eagle search algorithm optimized Long Short Term Memory Network (VMD-IBES-LSTM). Empirical analysis was conducted using fish price data from the Department of Marketing and Informatization of the Ministry of Agriculture and Rural Affairs of China. The proposed model in this study was subsequently compared with common forecasting models such as VMD-LSTM and SSA-LSTM. The research results show that the VMD-IBES-LSTM model that was constructed in this paper has good fitting results and high prediction accuracy, which can better explain the seasonality and trends of the change of China’s aquatic product consumer price index, provide a scientific and effective method for relevant management departments and units to predict the aquatic product consumer price, and have a certain reference value for reasonably coping with the fluctuation of China’s aquatic product market price. Full article