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Sea urchin roe is a high-quality product in terms of its nutritional value, valuable biochemical composition, and acquired taste. Urchin stocks, however, have been overfished worldwide and new candidates for commercial harvesting and aquaculture are required to satisfy the demand from the expanding market. The green sea urchin Strongylocentrotus droebachiensis from Russian waters of the Barents Sea may be considered a new source for potential consumers. We summarized available information regarding distribution patterns, feeding, reproduction, and growth as well as studies focused on farming of this species to assess the fishery and aquaculture potential of the area. This species is abundant in the coastal zone where it is commonly associated with laminarian kelp. The brown algae Saccharina latissima is the primary diet for S. droebachiensis but it also consumes animal foods. Red king crabs are the main predators for sea urchins but they do not significantly affect the S. droebachiensis population. A spawning peak of S.droebachiensis is registered in March–April. Green sea urchins reach a commercial size of 50 mm diameter at age 6 and the estimated stock of commercial urchins is 50,000–81,000 t. The most promising sites for harvesting are Varanger-fjord and Bolshoy Oleniy Island plus Porchnikha Bay. The best harvesting seasons are February–March and September–October. Sea-based rearing systems appear to be the most suitable approach for sea urchin aquaculture based on grow-out of adult animals fed on algal or mixed diets. [ABSTRACT FROM AUTHOR]

This study aims to analize the meaning, the decision making and the identification of fishery small entreprise investment. The study locates in Tuban Coastal–East Java Indonesia. It employs qualitative methods with case study. The data are collected through semi-structural interview, observation, and documentation. Techniques and time triangulation are used to check the validity of the data. CV. SAM is a fishery business on aquaculture of shrimp (vanname sp) and catfish (clarisas batracus sp), also makes probiotic and vitamins for fishes. The result shows that the entrepreneur interprets an investment as purchasing an asset to operation the entreprise. The owner decides on an investment for the purpose of expanding business and taking opportunity on the potential big market. Nevertheless, the enterprise identification several risks on their business. Firstly, operational risk; there are fish disease and increasing price of the feed and medicine on vanname that decreasing profit. Secondly, market risk; there are rejection or decline of selling price if the quality on low standart especilly for vanname on foreign markets. The entreprise anticipates operational risk by producing probiotics and vitamins for fish. On the market risks, the entrepreneur hasn’t any action to anticipate and to find solution especially for vanname. To develop the fishery small enterprise, the stakeholders need to support them in getting solution.

Southern flounder are an iconic coastal finfish through the Southeast U.S. Atlantic and Gulf of Mexico. Southern flounder spend the early part of their lives in coastal and estuarine habitats, later moving offshore to spawn. Several decades of research have provided much clarity to the biology, life history, and aquaculture aspects of southern flounder—this information is summarized and reviewed in this study. Despite substantial improvement in understanding the species, major questions remain about their recruitment, offshore behaviors, captive rearing, and management. Recently, southern flounder have also been in focus because of substantial synchronous population declines throughout their range with specific concerns that recruitment failure and possibly climate change may be implicated. Management of southern flounder has thus far taken place within individual states, but coming into focus is the possibility that larger coastwide management approaches may need to be considered due to both the migratory nature of the species and the possibility of population stressors acting at regional scales. Many states have already begun aquaculture and enhancement efforts, with an eye toward supplementing wild populations. Large group efforts, like the symposium that led to this study, will likely be needed to tackle the complex challenges confronting southern flounder. [ABSTRACT FROM AUTHOR]

Abstract Ongoing global changes are expected to affect the worldwide production of many fisheries and aquaculture systems. Because invertebrates represent a relevant industry, it is crucial to anticipate challenges that are resulting from the current environmental alterations. In this review, we rely on the estimated physiological limits of six commercialised species of sea urchins (Loxechinus albus, Mesocentrotus franciscanus, Paracentrotus lividus, Strongylocentrotus droebachiensis, Strongylocentrotus intermedius and Strongylocentrotus purpuratus) to define the vulnerability (or resilience) of their populations facing ocean warming and acidification (OW&A). Considering that coastal systems do not change uniformly and that the populations’ response to stressors varies depending on their origin, we investigate the effects of OW&A by including studies that estimate future environmental mutations within their distribution areas. Cross‐referencing 79 studies, we find that several sea urchin populations are potentially vulnerable to the predicted OW&A as environmental conditions in certain regions are expected to shift beyond their estimated physiological limit of tolerance. Specifically, while upper thermal thresholds seem to be respected for L. albus along the SW American coast, M. franciscanus and S. purpuratus southern populations appear to be vulnerable in NW America. Moreover, as a result of the strong warming expected in the Arctic and sub‐Arctic regions, the local productivity of S. droebachiensis is also potentially largely affected. Finally, populations of S. intermedius and P. lividus found in northern Japan and eastern Mediterranean respectively, are supposed to decline due to large environmental changes brought about by OW&A. This review highlights the status and the potential of local adaptation of a number of sea urchin populations in response to changing environmental conditions, revealing possible future challenges for various local fishing industries.

AbstractWe conducted a comprehensive review of livestock farming in Bangladesh to unveil current challenges and potential opportunities in this agriculture sector. Six challenges were selected as the major constraints to livestock farming in Bangladesh: climate change and natural hazards, poor veterinary care, breeding and management resources, marketing and international trade, and the SARS-CoV-2 pandemic. Solutions to these challenges (such as hazardous weather shelters, intensified surveillance of biosecurity for farms and markets, and non-government, government, and private organizations working together to educate and assist farmers) must target specific regions where the solutions would have the greatest effect.

Deep-sea aquaculture has developed rapidly in the world in recent years. Aquaculture equipment is required for largescale, mechanization, automation, and intelligence. Among them, the vacuum fish pump has been used widely in the process of fish catching and conveying. However there is a large range of strong vortexes in the tank during operation, leading to the mutual friction and collision injury between fish. In this study, the structure of the tank and the operation mode were improved to reduce the fish injury for the high working efficiency using a improved fish pump. The inlet pipe passed through the bottom of the tank and then entered the inside of the tank. A trumpet-shaped diversion structure was placed upside down at the top of the inlet pipe. An industrial centrifugal pump was selected as the driving device to replace the water ring vacuum pump. The water inlet of the centrifugal pump was connected to the water outlet of the tank. The fish-water mixture entered the tank, where the fish was separated from the water, due to the suction effect of the centrifugal pump. The incoming fish stayed in the tank, but the incoming water was discharged from the tank by the centrifugal pump. The baseline ratio of fish to water was 1:1 in the pool and the tank. When the ratio of fish to water in the pool was 1:2, 1:3, 1:4, and 1:5, respectively, it was calculated that the conveying time of the improved fish pump was reduced by 20.4%, 30.6%, 36.8%, and 40.8%, respectively, compared with the vacuum fish pump for conveying fish with the same quality. The numerical simulation was carried out to compare the water absorption of the vacuum and the improved fish pump using computational fluid dynamics. The results showed that there was a small vortex range in the tank of the improved fish pump, indicating the weak vortex intensity. An improved fish pump prototype was also designed and then manufactured to verify the numerical simulation in the performance experiments. Compared with the performance of the vacuum fish pump prototype, there was a relatively small vortex in the tank of the improved fish pump, and the conveying capacity did not changed with the change of fish lifting height. The improved fish pump was more friendly to fish conveying. The probability of fish injury was greatly reduced as well. The findings can provide a strong reference for the design of a large fish pump. [ABSTRACT FROM AUTHOR]

The responses of marine species to environmental changes and anthropogenic pressures (e.g., fishing) interact with ecological and evolutionary processes that are not well understood. Knowledge of changes in the distribution range and genetic diversity of species and their populations into the future is essential for the conservation and sustainable management of resources. Almaco jack (Seriola rivoliana) is a pelagic fish with high importance to fisheries and aquaculture in the Pacific Ocean. In this study, we assessed contemporary genomic diversity and structure in loci that are putatively under selection (outlier loci) and determined their potential functions. Using a combination of genotype–environment association, spatial distribution models, and demogenetic simulations, we modeled the effects of climate change (under three different RCP scenarios) and fishing pressure on the species' geographic distribution and genomic diversity and structure to 2050 and 2100. Our results show that most of the outlier loci identified were related to biological and metabolic processes that may be associated with temperature and salinity. The contemporary genomic structure showed three populations—two in the Eastern Pacific (Cabo San Lucas and Eastern Pacific) and one in the Central Pacific (Hawaii). Future projections suggest a loss of suitable habitat and potential range contractions for most scenarios, while fishing pressure decreased population connectivity. Our results suggest that future climate change scenarios and fishing pressure will affect the genomic structure and genotypic composition of S. rivoliana and lead to loss of genomic diversity in populations distributed in the eastern‐central Pacific Ocean, which could have profound effects on fisheries that depend on this resource. [ABSTRACT FROM AUTHOR]

Kampar Regency is one of the regencies with a quit spacious aquaculture area with pisciculture business activities as one of the livelihoods of most of the people. Freshwater fish farming in Kampar Regency includes the pisciculture of karamba or in ponds. The request for freshwater fish production in Riau province is also quite high, such as catfish, carp, tilapia, pomfret and baung fish for daily consumption or industrial needs. The high request for fish production in Kampar regency cannot always be fulfielld. This is due to the failure of aquaculture caused by various factors such as climate, environment, pests and diseases. So to avoid the occurrence of these failures required skilled human resources and adequate facilities. Research and Development Center for Aquaculture which functions as a center for development, research and public education in advancing the community's economy, which includes a research center, laboratory and also commercial functions in the fisheries sector. In designing the Center for Aquaculture Research and Development, the Biophilic architectural approach is used. Biophilic architecture is a good relationship between nature, humans and architecture. The concept of the building takes the concept of "River Water Flow" as an implementation of natural formations by considering the three aspects ofarchitecture Biophilic into a single unit.

Results of implementation of the Concept for development of fisheries in the Russian Federation until 2020 are considered. Of the 16 tasks, 3 (19 %) were fully implemented, 7 (44 %) were partially implemented, and 6 (37 %) were not implemented.

An accurate and rapid identification of fish feeding intensity can be essential to implement the precise feeding strategies in an industrial recirculating aquaculture system. Feeding intensity can be assessed using single modality indicators, such as water quality, vision, and sound. However, these individual data sources can often provide limited information without the complete picture of feeding behavior. The multimodal data can be expected to incorporate more comprehensive insights, compared with the single modality. Consequently, a more accurate representation of fish feeding intensity can be obtained to reduce some limitations of single modality information. Multi-modal fusion can also offer a novel approach to quantifying the feeding intensity. In this study, a Fish-MulT algorithm was proposed to combine the water quality, sound, and vision data using a Multimodal Transformer algorithm (MulT). Firstly, the feature vectors were extracted from the input water quality, sound, and visual data. Secondly, a Multimodal Transfer Module (MMTM) was employed to fuse the input feature vectors. Adaptive weights were then assigned to the three modalities after fusion. Lastly, the cross-modal transformer of each modal branch in the MulT algorithm was optimized to reduce the number of required transformers from 2 to 1. Furthermore, 1293 sets of threemodality data were collected in the experiment, with 70% used as the training set, 15% as the validation set, and the remaining 15% as the test set. The dataset was classified into four categories, according to the feeding intensity: "strong", "medium", "weak", and "none". The improved model was then evaluated using the collected dataset. Experimental results demonstrate that the Fish-MulT algorithm improved the accuracy of the fish feeding intensity identification from 93.30% to 95.36%, while reducing the number of parameters by 38%, compared with the MulT. Moreover, there were significant improvements in the accuracy, compared with the water quality, sound, and vision data, with the increases of 68.56%, 21.65%, and 3.61%, respectively. An ablation test of the added MMTM module and adaptive weight was also conducted during this time. The addition of both the MMTM module and adaptive weight led to the most significant improvement in the accuracy (up to 95.36%). A substantial improvement was achieved in the recognition accuracy, compared with the single modality. As a result, the Fish-MulT algorithm can be employed to develop precise feeding strategies. The finding can provide technical support to intelligent feeding systems. [ABSTRACT FROM AUTHOR]

The surge in renewable energy demand, particularly from offshore wind farm (OWF), raises concerns about underwater noise pollution during their construction. Despite extensive studies on underwater noise impacts in European and Western countries, local species targeted investigations are crucial for global application. We assessed how pile driving noise during OWF construction affected the behavior of three juvenile Korean fishes (Lateolabrax japonicus , Acanthopagrus schlegelii , and Platichthys stellatus) prevalent in East Asian seas. Pile driving noise playback induced rapid changes in L. japonicus and A. schlegelii swimming speed and group cohesion, with 40 % remaining un-habituated after 5 min. Notably, L. japonicus showed clear avoidance of the noise source, while P. stellatus behavior remained unchanged at all. Our findings confirm that even relatively low-intensity impulsive noise can alter fish behavior, potentially due to species-specific characteristics. Accumulated data will inform the development of strategies for smart OWF establishment, advancing sustainable energy practices. [Display omitted] • Species-specific responses to pile driving noise found in three major aquaculture fish in East Asia. • Seabass and seabream greatly changed swimming speed and group cohesion with noise playback. • More than half of seabass and seabream individuals habituated within 5 min after noise playback. • Seabass was most sensitive species to noise stress showing clear avoidance from the noise source. • Implication for consideration of species- and environment-specific biological impact assessments. [ABSTRACT FROM AUTHOR]

[Display omitted] • Minimum sample size was estimated to detect WSSV infection in shrimp from Rocha Lagoon with 95% confidence. • No viral genome was detected in 14 pools or 70 individual samples, indicating prevalence below 4.2% in Rocha Lagoon shrimp. • Pooling strategy was efficient for low disease prevalence, maximizing individuals tested with minimal resources.Histology of 20 specimens showed no pathological signs of WSSV infection. • We concluded that the prevalence of WSSV in Rocha Lagoon would be lower than 4.2% or absent. Penaeus paulensis (pink shrimp) is an important resource for small-scale fisheries in the brackish coastal lagoons of Uruguay. No viral diseases have been detected in shrimp populations in the Uruguayan territory. The presence of viral pathogens, such as White Spot Syndrome Virus (WSSV) and Infectious Hypodermal Haematopoietic Necrosis Virus (IHHNV) in wild shrimp populations has been previously reported in Brazil and Argentina. We investigated the presence of WSSV in wild populations of penaeid shrimp from Rocha Lagoon, Uruguay. We sampled 70 specimens of juvenile P. paulensis and assessed the presence of these viral pathogens using nested PCR and histology. Gill tissue from the 70 samples was divided into 14 pools of 5 individuals for DNA extraction and PCR analysis. We also retested each pooled sample individually. The nested PCR procedure described in the WOAH aquatic animal manual was used. A subset of 20 individual specimens were also processed using standard histological techniques. The results showed that WSSV was not detected in the pooled or individually tested samples. We found no evidence of the presence of the viral genome or gill lesions in the samples analysed. This indicates that the fishery is still likely to be free of WSSV infection. The procedures and information generated can be used as a baseline study for future implementation of surveillance programmes in the country. [ABSTRACT FROM AUTHOR]

Fisheries have traditionally been managed by direct restrictions, including seasonal and area closures, minimum mesh size, and access limitations. In recent years, licensing and an individual quota system were introduced as effort-control measures, in order to bring fishing effort more in line with the available resources. The overall responsibility for fisheries policy in Romania falls under auspices of the Ministry of Agriculture, Forests and Rural Development through its Directorate of Fisheries. The major objectives of Romanian fisheries are to bring the national fisheries legislation closer to the European Union (EU) Common Fisheries Policy (CFP) and to set up the administrative capacity and institutional building needed to cope with EU accession in 2007. In June 2001, Romania completed negotiations with EU in the area of fisheries, accepting the entire acquis communautaire without requesting any derogation or transition periods. The European Fisheries Fund will support Romania as a new EU Member State to develop a competitive, modern and dynamic fisheries sector, based on sustainable fishing and aquaculture activities, while also taking account of other important aspects such as environmental protection, the demands of the consumers and the food industry. The program is also expected to increase the competitiveness of the fisheries sector, encourage job creation and promote the growth of the aquaculture industry. The paper shows some aspects about Romanian fishery policy, an important opportunity for development research in fishery in fresh water from Banat region. Also, it is presents some research results about using the cereal feeding as fish’s nutrition, in special for common carp.

Copyright of Scientific Bulletin of Polissia is the property of Chernihiv State Institute of Economics & Management and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

The Blue Bio-economy and its problematic related to the capitalization of own waste represents a special chapter in the general framework of the circular economy. The reasons for the specific approaches are closely related to the complexity of the technologies used, the high nutritional value of the waste, but also the food safety issues that arise. For this reason, the elements of legislation approved at European level are highlighted and below are presented a series of statistical data that position Romania in the evolutionary framework of other European countries, from several points of view: fish production, consumer preferences, import / export balance, etc. The conclusions of the study show the need to implement technologies for capitalizing on rest raw materials (RRMs) in the fish industry. [ABSTRACT FROM AUTHOR]

The article is aimed at researching the organizational and economic bases for the development of fishing and aquaculture industry in Ukraine. The current status of commercial fish cultivation is analyzed according to the information contained in the form 1A-fish (annual). It is determined that there has been a decrease in the volume of sales of aquaculture products according to the data of business entities in the fisheries sector. The procedure for carrying out a systemic analysis of problems in Ukrainian aquaculture is researched. The paramount problem in Ukrainian aquaculture is the lack of reliable information on the status of the sector, the real volumes of seizure of water bioresources, the volume of commercial fish cultivation in aquaculture, the number of workers, the number of economic entities, the volume of fish release and fish products, the economic indicators of the industry. Relevance of collection of reliable information on the status of the fishing and aquaculture industry sector, the real volumes of seizure of water bioresources, the volume of commercial fish cultivation, the number of workers, the number of economic entities, the volume of fish release and fish production, the economic indicators of the fisheries industry is substantiated. It is proposed to define approaches to the development of a comprehensive program for the development of sustainable and competitive aquaculture in Ukraine. The results of the study allocate new approaches to the development of a comprehensive program for the development of sustainable and competitive aquaculture in Ukraine. It is proposed to make supplements and changes to the Budget and Tax Codes of Ukraine, the Law of Ukraine on the State Budget of Ukraine, which clearly should specify the costs for each year and according to each direction of development. The article proposes to develop a program or algorithm to assist fish farmers, taking into account the organizational and economic mechanisms adopted in the European Union, in view of the conditions of global transformation.

The demand and high market price for sea cucumber has led to the collapse of wild stocks for many traditional species in Asia and the Indo-Pacific. New species have therefore been introduced to the markets over recent decades, including Cucumaria frondosa. A fishery for C. frondosa emerged in the USA in the 1980s and quickly developed in Iceland, Canada and Russia. Commercial products include frozen and dry body wall (beche-de-mer), frozen muscle bands, dry aquapharyngeal bulb (flower), along with various pharmaceutical and nutraceutical extracts. This species is also a candidate for aquaculture due to its high marketability for food and bioactive products. Despite its naturally high abundance, C. frondosa is a temperate-polar slow-growing species with annual spawning; therefore, a precautionary approach must be taken to develop best practices for management of this resource. The present contribution reviews the biology, ecology, biochemical properties, harvesting and trade, and the potential aquaculture of C. frondosa. This comprehensive synthesis, including 10 theses, 197 scientific papers and 47 reports, aims to provide a framework for future research by highlighting areas of concern for academic studies, fishery management, and aquaculture of cold-water sea cucumber species. [ABSTRACT FROM AUTHOR]

Nowadays it is important to know the origins of most products, not only for public health reasons, with regard to food products, but also because of the increasing people's awareness of environmental and social aspects, posing new challenges in the quality of products and their environmental impact. Food traceability information must be collected throughout the supply chain, and be registered on a platform external to all operators in that chain. This information must be available, not only to value chain operators and public health authorities, but also to end customers. One of the best ways to provide customers with this traceability information, in the places where they need to make a decision about which products to buy, is to add kiosks at the points of sale for those products. This article describes the design and architecture of a traceability platform for fish and fishery products, within the scope of the ValorMar R&D project, as well as the applications that supply the platform with traceability information, and a kiosk application for points of sale and a mobile app for final consumers, which will allow them to consult the traceability of fish and fishery products' lots.

Listeria monocytogenes is a food pathogen responsible for listeriosis, a relevant disease in public health worldwide. The genus Listeria spp., corresponds to cosmopolitan bacteria and capable of surviving different adverse conditions, which increases the risk for the food to be contaminated at any stage of the food chain. Fish and fish products are foods of high production level and, due to their chemical or nutritional composition, are highly susceptible to deterioration and contamination by pathogens in their productive chain relating to cases of listeriosis. Derived from the incidence and human mortality due to causative agents of listeriosis, along with their resistance to antimicrobials, they have acquired a greater emphasis on human health, animal health and food industry, resulting in the implementation of safety systems such as good hygiene practices, Hazard Analysis and Critical Control Points (HACCP) system, analytical methods and microbiological criteria, as some of the actions to contribute to the food safety and public health protection. The purpose of this review document is to provide, in a general way, aspects involved in foodborne illnesses, specifically listeriosis and its association with fish as a transmitting food, considering the prevention and control measures of this disease through food. It also includes aspects related to antimicrobial resistance by bacterial isolates obtained from fish, their implications and health risks.

The Republic of Azerbaijan, which ranks first in terms of size and population in the South Caucasus region, has the lowest fresh water reserves compared to other countries in the region. However, one of the greatest advantages undoubtedly is the fact that Azerbaijan has a about 713 km. coastline along the Caspian Sea. Economic recession throughout the region and the impossibility of meeting traditionally high fish demand led to an increase in prices and, as a result, reduced fish consumption to 2 kg per capita. In recent years, there has been a growing interest in the aquaculture industry in the country.

Foodborne diseases are considered a serious public health problem worldwide due to their incidence and mortality. The increase in the appearance of those diseases with their negative effects is contributed to the changes in society's eating habits, globalization of the production, and food marketing. Food safety is currently a fundamental characteristic in the production and availability of food, being therefore indicated as the guarantee that will not harm the consumer's health. Fish is considered a nutritious and globally marketed food and its processing and consumption occur in different forms and presentations (whole, whole gutted, fillet, fermented, canned, salted, cooked, smoked, raw, among others). Fish, due to its chemical composition and the hygienic conditions to which it is subjected during its production, handling, processing and conservation, is highly susceptible to be contaminated and hence, deteriorated by various microorganisms. Some of these are food pathogens as Yersinia enterocolitica, which is identified as a causal agent of the zoonosis called yersiniosis that may put the health of consumers at risk. The objective of this review is to provide general information on foodborne diseases, especially those whose causative agent is Yersinia enterocolitica through the consumption of fish. Characteristics of the pathogen, aspects of control, and prevention of food contamination are presented, including microbiological analysis and sanitary regulation in different parts of the world. Additionally, reference is made to aspects of the phenomenon of antimicrobial resistance and the danger for public health. [ABSTRACT FROM AUTHOR]

The article analyzes the current state of the fishing industry of Ukraine. The legal regulation of the sector and the place of fisheries in the economy of the country have been determined. The list of fish that are most important for the fishing industry from the Black and Azov Seas and other water reservoirs has been indicated. The paper considers the volume of fish caught in 2019 in the seas and freshwater reservoirs. The main exporters and importers of fish products in Ukraine have been listed and the main reasons for small production volumes have been highlighted. It has been proved why it is important to develop aquaculture. Ways to increase the efficiency of fish production have been indicated. It has been claimed that in order to revive the activities of fishing enterprises and the development of the fish market in general, it is necessary to attract investors and make considerable efforts to support domestic aquaculture. [ABSTRACT FROM AUTHOR]

Seafood by-products, produced by a range of different organisms, such as fishes, shellfishes, squids, and bivalves, are usually discarded as wastes, despite their possible use for innovative formulations of functional foods. Considering that “wastes” of industrial processing represent up to 75% of the whole organisms, the loss of profit may be coupled with the loss of ecological sustainability, due to the scarce recycling of natural resources. Fish head, viscera, skin, bones, scales, as well as exoskeletons, pens, ink, and clam shells can be considered as useful wastes, in various weight percentages, according to the considered species and taxa. Besides several protein sources, still underexploited, the most interesting applications of fisheries and aquaculture by-products are foreseen in the biotechnological field. In fact, by-products obtained from marine sources may supply bioactive molecules, such as collagen, peptides, polyunsaturated fatty acids, antioxidant compounds, and chitin, as well as catalysts in biodiesel synthesis. In addition, those sources can be processed via chemical procedures, enzymatic and fermentation technologies, and chemical modifications, to obtain compounds with antioxidant, anti-microbial, anti-cancer, anti-hypertensive, anti-diabetic, and anti-coagulant effects. Here, we review the main discards from fishery and aquaculture practices and analyse several bioactive compounds isolated from seafood by-products. In particular, we focus on the possible valorisation of seafood and their by-products, which represent a source of biomolecules, useful for the sustainable production of high-value nutraceutical compounds in our circular economy era.

Although Brazil has been an active voice in ICCAT in the past ten years, its leadership has been declining. This paper examines what might explain the variation of international influence Brazil has had in addressing the issues at ICCAT and argues that if Brazil wants to preserve its leadership, it must demonstrate commitment to its own waters while strengthening governmental institutions. [ABSTRACT FROM AUTHOR]

This paper examines the economy-wide impacts of wild catch fishery decline due to climate change on major wild catch producing countries in Southeast Asia and South America, particularly focusing on food industries. A global economic model has been extended to separate the choice between wild catch and aquaculture in the production and consumption functions. The fish commodity/sector is also disaggregated in the database into wild catch and aquaculture commodities/sectors in order to make it compatible with the modified model. Results show that the Philippines, Thailand, Malaysia, Indonesia, Ecuador and Peru experience considerable impacts on their economies, food industries, and households. Vietnam experiences the lowest impact on their economy because of low impact on their ocean fish resource. Results also indicate that expansions in aquaculture outputs are not adequate to compensate losses in wild catch production in all countries, and there will be a scarcity of fish in the international market that will be harmful to international trade of wild catch and aquaculture, as well as global food security. Households will also be substantially vulnerable due to high prices of fish and lower income levels resulting from contractions of production levels. [ABSTRACT FROM AUTHOR]

Highlights • Global warming will challenge the sustainability of the European seafood production volume. • We present a combination of data on the European seafood production volume and the ecological characteristics of the main produced species. • The marine sectors (fisheries and aquaculture) are more vulnerable to warming than the freshwater sector. • Seafood production is more vulnerable in Nordic countries marine sector because of high production volume and temperature sensitivity. • National climate adaptation strategies and actions should be harmonized and integrated on the regional level across European nations. Abstract The main challenge for the European seafood industry is to ensure sustainable production volume while adapting to climate warming. Marine fisheries mainly target 41 species which account for 80% of the seafood production in Europe. The remaining 20% comes from marine and freshwater aquaculture, which harvest mainly 5 and 11 species, respectively. European seafood production volume (2004–2014) recorded by FAO was combined with indices of temperature sensitivity and biological sensitivity (BS) based on the life histories of the main exploited species. We found that the marine sectors are more vulnerable to global warming than the freshwater sector. The vulnerability to warming of a country's production is defined by the temperature sensitivity and the BS of the main exploited seafood species, weighted by their production volume. Production vulnerability in the marine sector increases with latitude due to the temperature sensitivity of the harvested species and their high production volume. No such gradient is found in the freshwater sector because most of the production is based on two species with opposite temperature sensitivity. To ensure a sustainable European seafood production, national climate strategies and action plans should include both fisheries and aquaculture and be integrated at a regional level. [ABSTRACT FROM AUTHOR]

Copyright of Journal of Information Science & Technology Association/Joho no Kagaku to Gijutsu is the property of Information Science & Technology Association and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

A major challenge for the aquaculture sector is access to sustainable and cost-effective raw materials for feed. Copepods (Calanus spp.) have potential to meet this need for large volumes of marine raw materials to enable sustainable growth of aquaculture production worldwide. However, the lack of an energy- and catch-efficient trawl technology has limited the development of this fishery in the Northeast Atlantic. Therefore, the goal of this study was to develop a next generation trawl for harvesting zooplankton that was less energy demanding and more catch efficient than current trawl designs. We assessed the filtration efficiency of low porosity nets with different solidities and studied the effects of design parameters (mesh opening, twine thickness, porosity, taper angle) at various flow velocities in a flume tank. We found that the filtration efficiency for a square meshed net increased with increasing velocity and decreasing solidity and taper angle. A large open area ratio (the ratio between the open netting area and the net's mouth area) improved the filtration efficiency at towing velocities below 0.5 ms−1. These results provided an indication of the initial filtration efficiency of the net designs (i.e., before any clogging occurs) but not of the sustained filtration efficiency. • This study aims at assessing the filtration efficiency of low porosity nets with different solidities. • We study the effects of mesh opening, twine thickness, porosity, taper angle on filtration efficiency. • Filtration efficiency increased with increasing velocity and decreasing solidity and taper angle. • Large open area ratio improved the filtration efficiency at towing velocities below 0.5 ms−1. [ABSTRACT FROM AUTHOR]

The offer and consumption of fish and other aquatic organisms in Brazil comprise a great complexity of interacting factors, from the origin and production of these goods, to their processing and marketing. Unexpected factors such as the COVID-19 pandemic might contribute for increasing the complexity of such interactions and shift consumption patterns. This study aimed at characterizing the consumption of fish in the Brazilian territory, identifying factors that influence such consumption and investigating how the COVID-19 pandemic affected the country's consumption pattern. A closed and semi-structured questionnaire was applied and gathered responses from 1763 Brazilian participants from all the country's macro-regions, regarding fish consumption and factors affecting it. Data were presented descriptively and analyzed by means of a multivariate approach. Three patterns of fish meat consumption were identified in the study. Northern participants consume this foodstuff in recommended amounts by dietary guidelines in higher proportions than other regions. In general, during the pandemic most respondents did not change their fish consumption (59.7%) and declared that no risks were associated with consuming this foodstuff (65.6%). It was found that the origin of fish is a major driver of consumption, whereas from 49.2% (Southeast and Midwest) to 58.2% (North) of the population would increase their consumption in case the origin of the foodstuff was declared. Fish consumption in Brazil is influenced by multiple factors and it can be stimulated by exploring differences existing among the territory's macro-regions. • Fish consumption by the Brazilian population was characterized. • COVID-19 pandemic negatively affected fish consumption in the North region. • Informal markets interruption caused reduced consumption by low-income families. • High-income families did not have their fish consumption altered during the pandemics. [ABSTRACT FROM AUTHOR]