Economy and diversity of aquaculture production in Bulgaria: status and trends

Aquaculture production in Bulgaria has increased over the last decade, reaching 16 442 tonnes in 2019. Fish production has doubled in comparison with 2007, while that of mussels has increased tenfold. The Bulgarian contribution to EU aquaculture production has been increasing significantly in both volume and value over the years, making up 1.15% of the volume and 1.0% of the value of EU production in 2019. Freshwater aquaculture accounts for 78% of total production. Common carp dominates with about 29.4% (4836 t), followed by rainbow trout with 29.2% (4820 t) in 2019. The cultivation of sturgeon species and caviar production are among the most dynamically developing aquaculture segments. Mariculture in the Black Sea has increased in recent years, with the production of Mediterranean mussel reaching 2932 tonnes in 2019. An average of 405 farms operated during the period 2010-2019. Four regions (Plovdiv, Stara Zagora, Burgas and Montana) account for 50% of the total fish production. Pond aquaculture is the dominant technology used in Bulgaria, and it serves as the basis for numerous other activities, including management of fish stocks in various water bodies mainly for recreational fishing. Approximately 35 net-cage farms currently operate in bigger dams. Recirculating fish farms output made up only 0.15% of the total amount of aquaculture for the period 2010-2019. The aquaculture sector exhibited difficulties in recovering from the financial crisis of 2007-2008, manifested by a slow growth for the period 2010-2014. From 2015 to 2019 there has been a significant growth, manifested in a sharp increase of total revenue and profitability, especially among the larger enterprises in the sector, as well as an increase in the number of employees, and the labour productivity. As a result, in 2019 the registered total revenue per enterprise and total revenue per employee were more than double the respective figures for 2010. The profits of larger enterprises increased more than three times on average, but smaller entities, micro-enterprises with less than 5 employees, operated at the border line between profit and loss. The COVID-19 crisis could have lasting consequences. Despite EUR 1.2 million direct payments in the sector in 2020, there has been a significant drop in the export of aquaculture products. Consumption of fish and other aquaculture products remains low compared to those in the other EU countries.

What is hidden in the luggage? First assessments of illegal seashells gathering in Sardinia (Italy)

Natural souvenirs collection has been identified as a driving force in biodiversity and habitat degradation of tropical marine ecosystems. This work considers this phenomenon in the Mediterranean region taking Sardinia (Italy), one of the most renowned tourism destinations, as a case study. The biological material seized at Cagliari-Elmas Airport (years 2019–2020: 138 kg) was analyzed: 199 taxa were identified, gastropods (112 species, 7866 pieces) and bivalves (63 species, 34,218 pieces) resulted the most represented classes. Twenty-two protected species were found in the tourists' luggage including Patella ferruginea and Pinna nobilis, the invertebrates most threatened with extinction in the Mediterranean Sea. This study demonstrates that the illegal collection of natural mementos is common in Sardinia, thus its relevance is not limited to tropical regions. Regulation, enforcement and compliance shortcomings emerged, highlighting the importance of strengthening stakeholders' collaboration for a deeper insight on this phenomenon and implementing effective conservation strategies.

Impacts of COVID-19 on U.S. seafood availability. (Special Issue: COVID-19 impacts on selected commodities.)

Seafood is the food group with the highest share traded, and the U.S. is the world's largest seafood importer, importing 79% of the seafood consumed. Hence, a study examining the impacts of the measures to contain COVID-19 on U.S. seafood imports will not only show how U.S. seafood availability has been affected, but will also give strong indications of how resiliently the global seafood markets have worked through the pandemic. We find that U.S. imports of seafood actually increased in 2020 and 2021, suggesting supply chains were able to adapt to potential disruptions. Moreover, for the 14 largest product forms imported to the U.S., there are no strong price movements. Given that there is a global market for most species groups, this adaption also suggests that the markets have worked quite well beyond the U.S. Hence, while there have undoubtedly been market shocks associated with the COVID-19 measures such as the reduction in demand from the restaurant sector and the increased sales in the retail sector, opportunities seem to balance out challenges, and the supply chains for seafood to the U.S. have been highly resilient.

Food and lifestyles during pandemic confinement in university students from Chiapas, Mexico

Introduction: During the period of confinement due to covid-19, the population modified work and social activities, altering eating patterns, physical activity practices and sleep, causing a direct impact on physical and emotional health. Background: To describe the changes generated in eating behavior and lifestyles during the COVID-19 pandemic in a university population living in the state of Chiapas, Mexico. Material and method: Cross-sectional study, where university students from the state of Chiapas, Mexico participated. Data collection was carried out through a digital survey using Google Forms. Results: 306 students participated with an average age of 20.75 years (SD= 2.062), a statistically significant increase was found in the number of meals eaten per day, the average per week in consumption of processed meat, eggs, cookies (pastries) and sugary drinks. Statistically significant decrease in consumption of fish and shellfish, dairy, fast food. Also, significant increase, sleep time, watching television and use of electronic devices. Conclusions: The population presented a tendency to changes in diet and unhealthy lifestyles, increasing the risk factors of suffering from other types of diseases.

Regional impacts of COVID-19 pandemic on aquaculture and small-scale fisheries: Insights and recovery strategies in India

Fisheries and aquaculture have emerged as a promising food production sector at the global level as well as regional levels. Fish and fish products are produced in one region and then are traded across various parts of the world. The whole sector is dependent on chains of workers engaged at landing centres, breeding units, processing units, and the trade and export chains. When the pandemic and the subsequent lockdown hit the country, it affected the whole sector and caused a huge decline in the production and trade of fishing products. This article aims to have a glimpse into the aquaculture sector and evaluate the impact of the pandemic on this sector in India. This valuable information can be of great importance to government and aquatic food suppliers so that they can evolve their strategies to withstand ongoing and future pandemics. It also helps them in framing regional and sectorial adjustments to transform investment plans, match market demands, improve monitoring strategies and get prepared for future needs. © 2023

The One Health concept for the threat of severe acute respiratory syndrome coronavirus-2 to marine ecosystems

Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is a global health threat. This virus is the causative agent for coronavirus disease 2019 (COVID-19). Pandemic prevention is best addressed through an integrated One Health (OH) approach. Understanding zoonotic pathogen fatality and spillover from wildlife to humans are effective for controlling and preventing zoonotic outbreaks. The OH concept depends on the interface of humans, animals, and their environment. Collaboration among veterinary medicine, public health workers and clinicians, and veterinary public health is necessary for rapid response to emerging zoonotic pathogens. SARS-CoV-2 affects aquatic environments, primarily through untreated sewage. Patients with COVID-19 discharge the virus in urine and feces into residential wastewater. Thus, marine organisms may be infected with SARS-CoV-2 by the subsequent discharge of partially treated or untreated wastewater to marine waters. Viral loads can be monitored in sewage and surface waters. Furthermore, shellfish are vulnerable to SARS-CoV-2 infection. Filter-feeding organisms might be monitored to protect consumers. Finally, the stability of SARS-CoV-2 to various environmental factors aids in viral studies. This article highlights the presence and survival of SARS-CoV-2 in the marine environment and its potential to enter marine ecosystems through wastewater. Furthermore, the OH approach is discussed for improving readiness for successive outbreaks. This review analyzes information from public health and epidemiological monitoring tools to control COVID-19 transmission. Copyright © Bukha, et al. This article is an open access article distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.

Comparative analysis of shrimp production in Ecuador in the 2010-2020 period

Efficiency in shrimp farming is due to the use of an extensive system that includes fewer larvae per pool, which increases productivity, improves financial results, and even the environmental impacts generated during these operations. The objective of this study was to identify the factors that affect supply in the Ecuadorian shrimp sector. To this end, some statistical techniques such as linear regression and hypothesis testing were used. A bibliographic study was carried out regarding shrimp production in Ecuador, taking as reference the data provided by the National Chamber of Aquaculture and public control entities and reviewing the unprecedented impact on the current COVID19 sanitary crisis and the reduction of shrimp demand affecting Ecuador's income. Finally, it was observed that the research variables considered directly impact crustacean production, and a mathematical model was established.

Fish, Seafood, and Fish Products Purchasing Habits in the Spanish Population during COVID-19 Lockdown.

The Mediterranean diet is a healthy dietary pattern in which fish consumption is an important key element. In Spain, fish intake is the second highest in Europe. Dietary guidelines recommend an intake of 1-3 portions a week of fish. However, Spanish fish sales have been decreasing since 2008. The unexpected pandemic spread of the SARS-CoV-2 in 2020 led the Spanish Government to take restrictive measures that had an impact on people's behavior, including food purchases and consumption. The aim of the study was to analyze purchase data of fish, seafood, and fish products during the lockdown in Spain, using data from loyalty card holders (>5,000,000 participants) from a hypermarket chain in Spain. The results show a 45% increase in the purchase of all types of fish, seafood, and fish products, with the highest increment observed in the retiree (+65 years) as compared to the younger populations. Moreover, the retiree, in spite of the digital divide, were also the ones that most increased online shopping. These data should be considered since events like COVID-19 confinement can have a permanent impact on people's dietary habits, a possibility that should be monitored in the future.

Helping Louisiana's shrimp industry during the pandemic

This article reports on the inclusion of wild-caught shrimp in the USDA Agricultural Marketing Service (AMS) program to help Louisiana's shrimp industry during the COVID-19 pandemic. As a result of a quick Sea Grant mobilization, $50 million in cash from USDA was infused into the shrimping industry, and 7.6 million pounds of Louisiana shrimp were taken out of inventory and distributed nationwide.

Serum miR-101, HSP-70 and IL-1 beta in gastric cancer patients with hp infection correlation between expression level and tmor proliferation and invasion

Objective: To investigate correlation between expression level and tumor proliferation and invasiveness of the serum miR-101, heat shock protein-70 (HSP-70) and interleukin-1beta (Interleukin-1beta, IL-1beta) in patients with gastric cancer complicated by Helicobacter pylori (Hp) infection.

Development strategy of crayfish industry under COVID-19 epidemic taking Jingzhou city in Hubei Province as an example

The pandemic situation of COVID-19 has seriously influenced the whole chain of crayfish industry--aquaculture, logistic, processing, and service in Jingzhou. In the short term, each link of the industry was difficult to get well completely, the relevant enterprises and new types of agricultural businesses lack of confidence. After undergoing rapid development for many years, it presented some new changes under the epidemic influence: firstly, the cultivation area tend to be stable and rational, and a large scale of crayfish aquaculture was transformed to high quality aquaculture;secondly, the storage and deep processing industry would be developed rapidly;thirdly, the online consumption mode would become widely accepted. Based on our investigation, some suggestions were put forward for crayfish industry to resume production and to promote the sustainable-healthy development. The first, crayfish aquaculture in paddy field should be changed from high production to high quality;the second, processing and server-side should develop new products and new marketing models;the third, the industry management department should strengthen guidance and supervision, local governments at all levels should strongly support from policy, finance and publicity, so that jointly guide the industry upgrading and create regional brands.

Impact of COVID-19 Nonpharmaceutical Interventions on the Extent of Norovirus Contamination in Oyster Production Areas in Ireland during Winter 2020 to 2021.

ABSTRACT: A significant decrease in norovirus prevalence and concentration was observed in oyster production areas in Ireland during winter 2020 to 2021. Oyster production areas impacted by human wastewater discharges that had been undergoing norovirus surveillance since 2018 were investigated. Samples collected in the winter seasons of 2018 to 2019 and 2019 to 2020, prior to when the COVID-19 pandemic interventions were applied, showed a prevalence of 94.3 and 96.6%, respectively, and geometric mean concentrations of 533 and 323 genome copies per g, respectively. These values decreased significantly during the winter of 2020 to 2021 (prevalence of 63.2% and geometric concentration of below the limit of quantification), coinciding with the control measures to mitigate the transmission of severe acute respiratory syndrome coronavirus 2 of the genus Betacoronavirus. Divergence between norovirus GI and GII prevalence and concentrations was observed over the 3-year monitoring period. Norovirus GII was the dominant genogroup detected in winter 2020 to 2021, with over half of samples positive, although concentrations detected were significantly lower than prepandemic winters, with a geometric mean concentration of below the limit of quantification.

The 3rd International conference on Fisheries and Marine Sciences, Surabaya, Indonesia, 10 September 2020

This proceedings contains 96 papers on ocean biodiversity;breeding, reproduction, feeding and diseases of aquacultured fish and shellfish;water quality;fishery management, seafood preservation and quality;aquaculture and fishery economics and the impact of COVID-19 on aquaculture and fishery production.

SARS COV-2 AS A RISK FOR ANGIOEDEMA

CASE: This is a 41-year-old man who was admitted to the medical floor with mild COVID-19 symptoms without hypoxia. He had End Stage Renal Disease (ESRD) on Hemodialysis (HD), failed renal transplant, Hypertension and Schizophrenia. Patient had no relevant family history. Medications included Aspirin, Atorvastatin, Nifedipine, Benztropine, and Haloperidol. Patient had allergy to shellfish products. He tested positive a week prior to admission with mild cough no fever or hypoxia. As symptoms worsened, he presented to emergency department and was admitted because of his immunocompromised status. The night of admission, he developed wheezing and stridor, swelling of face and lips, and altered mental status. It was difficult to pass endotracheal tube due to swollen airways. Vital signs were stable except for a low oxygen saturation. Physical examination significant for stridor and swelling of the face and lips. Laboratory values were not significant. We reviewed and none of them was newly started or associated with risks of angioedema. He had no history of previous similar episodes. Patient was given anti-histamines and steroids with slight improvement. Flexible laryngoscopy was performed showing swollen epiglottis and aryepiglottic folds. He ended up getting a tracheostomy as he was regarded as a high risk to be liberated from intubation. IMPACT/DISCUSSION: Few other cases of COVID-associated angioedema have been reported in the literature, majority of the cases explained were in African American patients. The features of angioedema reported like the traditional angioedema, swelling of the face, lips and airways. This angioedema developed within 7 days of detection of COVID-19 in our case and >10 days in the previously reported cases. Angioedema develops due to increased levels of Bradykinin (BK) and its metabolites due to increased expression or decreased degradation. Angiotensin Converting Enzyme (ACE) with other enzymes prevent angioedema by degradation of BK and its metabolites . African Americans, have genetic susceptibility which leads to lower levels of other enzymes involved in the Bradykinin metabolism, thus ACE blockade put them at a higher risk of angioedema. The association of COVID-19 with ACE2 and its subsequent disruption of ACE activity is thought to be the reason behind the development of angioedema. Most of the published articles are either observational or sporadic case reports. More thorough study might help identify further mechanisms and if there is a direct true causal relationship between COVID-19 infection and angioedema or if it is the result of a “second hit,” as it was called by authors of another case that involved a Caucasian male with hypertension who has been using Lisinopril for years with no previously reported complaint. CONCLUSION: SARS CoV-2 should be suspected as cause for angioedema. Further studies needed to establish modalities for diagnosis, management and prevention in high-risk patients.

Socio-economic progress of shrimp farming in Punjab

COVID-19 pandemic devastated the world with unprecedented economic crisis, leaving everyone confused and apprehended, including the livestock sector. As a resilience measure, shrimp farmers of Punjab were advised some remedial adaptations. Expecting good results, socio-economic evaluation of shrimp farmers from 3 south west districts (Fazilka, Sri Muktsar Sahib and Mansa) of the state was carried out. With enthusiastic participation of young (56.7% 35 years of age) and educated (50% graduates) farmers, overall 86.6% of the farmers followed the advisories. The pandemic delayed stocking of ponds, however 66.7% of farmers harvested 6.5 to 8.75 t shrimp ha crop . -1 -1 Non-availability of water testing facility within approachable distance emerged as the major constraint (80%), while only 6.66% farmers each reported marketing and seed related problems. With culture period of 101-120 (40%) and >120 (36.7%) days, 66.7% farmers obtained feed conversion ratio <1.2. Further, 43.3 and 36.7% farmers harvested shrimp with an average body weight of 31-35g and 26-30g, respectively and 100% farmers marketed shrimp at the farm site @ Rs. 301-400 (53.3%) and >Rs. 400/- (40%) kg, corresponding to net profit of >12.5 lakh -1 (60%) and 7.6-12.5 lakh (26.7%) ha . The adopted resilience plan helped the farmers to realize optimal economic returns from shrimp farming -1 in Punjab.

Food diversity among residents of three Peruvian provinces during COVID-19 and associated factors

Objective: To evaluate dietary diversity among the inhabitants of the Peruvian provinces of Lima, Arequipa and Sullana during the time of isolation due to COVID-19 and to explore the associated factors. Methods: Cross-sectional study in which electronic questionnaires were applied to respondents between the last week of June and the first week of July 2020. All cities were in quarantine at the time of the study. We assessed dietary diversity using the Household Dietary Diversity Score (HDDS). Information was collected from a total of 672 households, after quality control and prior to statistical analysis, data from 600 households were analyzed: 281 from Lima, 212 from Arequipa and 107 from Sullana, representing 2,570 residents of the three Peruvian cities. Results: The group of cereals had 96.5% of consumption, miscellaneous 77.7%, oils and fats 74.7%, and fish and shellfish 52.3%. Having higher economic income was associated with a significantly higher HDDS compared to those with lower income (p<0.01). The inhabitants of Sullana have the lowest dietary diversity score (HDDS= 7.82), followed by Arequipa (HDDS= 10.19) and Lima (HDDS= 10.93). Conclusions: People with a lower educational level, with lower economic income and residents of Sullana had a lower Household Dietary Diversity Score.

Cholera

Cholera, a diarrheal infection caused by the gram-negative bacillus Vibrio cholerae, belongs to the Vibrionaceae family. According to the who in 2017, 34 countries reported a total of 1 227 391 cases of cholera and 5 654 deaths, with a fatality rate of 0.5%. The Asian continent is responsible for 84% and Africa for 14% of all cholera cases worldwide, and in America, Haiti reported 13 681 cases (1%). Practically, most of the cases correspond to developing countries, which translates to us a health problem and/or infrastructure (access to safe water), conditions for outbreaks and epidemics. In Mexico, in 2018 a case was reported in an adult, being the human intestine is not the only reservoir of V. cholerae 01, since it survives and multiplies in estuaries, swamps, rivers and in the sea. Some fish and various shellfish, especially bivalve molluscs from contaminated waters, are a potential source of transmission if eaten raw or undercooked. It can also be spread through other types of food such as rice, coconut water, undercooked pork, and vegetables irrigated with black water. The route of transmission is fecal-oral. Outbreaks associated with the ingestion of contaminated water appear explosively and are generally related to a common source. Cholera occurs mainly in low socioeconomic environments with poor sanitation conditions, it is frequent in people who are exposed to consumption of river water and/or street foods and in food handlers. Given all these aspects, we must always think about this pathology, given the sanitary conditions that are currently distracting from the current coronavirus pandemic, coupled with many regions with floods and the consumption of contaminated water.

Implementing SDG 14 Under Principles, Ethical Values, and Environmental and Economic Justice for Small-Scale Artisanal Fishermen in Costa Rica

In Costa Rica, as in other countries, vulnerability and marginalization experienced by small-scale artisanal fishermen, fisherwomen, and mollusk collectors are the result of the absence of a human rights‐based approach to marine conservation and development in the coastal areas. Usually non-formality, absence of tenure and access rights, bad health services, and low education compared to other productive sectors are part of what fisherfolks experience. This commentary shares how working in a long-term and integral way with these communities and incorporating a human rights‐based approach strengthens the contributions that the sector provides toward the sustainable use of the fishing resource of their marine territories with dignity, equity, and justice, especially in the context of SDG 14, the Ocean Decade, and 2022 as the International Year of Artisanal Fisheries and Aquaculture. Born during the COVID pandemic, the initiative of a fair and equitable Sea Market for the fishing products of these small-scale communities supported by CoopeSoliDar RL and the Marine Responsible Fishing areas and marine territories of life network in Costa Rica is today a concrete example of how a fair and just market can contribute positively to the objectives of sustainable development and the fundamental elements contained in the Convention on Biological Diversity, preservation of the natural environment, sustainable use, and fair and equitable distribution of benefits.

Aquaculture: an introductory text

This 4th edition covers issues associated with sustainable aquaculture development, culture systems, hatchery methods, nutrition and feeding of aquaculture species, reproductive strategies, harvesting, and many other topics. While its main focus is on the culture of fish, molluscs and crustaceans for food, the book also covers other forms of aquaculture, such as the production of seaweeds, recreational fish and ornamental species, as well as live foods, such as algae and rotifers that are used to feed larval shrimp and marine fish. Thoroughly updated and revised, this essential textbook now includes increased coverage of open-ocean cage culture and sea lice issues with salmon culture, coverage of the significant progress made in nutrition, including the move away from fishmeal as protein and fish oil as lipids in feed, information on biofloc technology uses, predictive impacts of climate change, probiotics, and the impact of COVID-19 on the aquaculture community, and updated aquaculture production statistics and lists of approved anaesthetics. Aquaculture remains one of the most rapidly growing agricultural disciplines, and this book remains an essential resource for all students of aquaculture and related disciplines.

Reference collection amidst COVID-19 pandemic: fish, crustacea, and mollusc of rumphius expeditions deposited in Ambon, Indonesia

Due to COVID-19, many scientists have to work remotely and have limited access to physical reference collections. This situation has highlighted that providing online digital content is considered one of the most effective solutions. To make materials of reference collection more accessible to scientists or researchers, we here report the Rumphius expeditions (1973 – 1980) materials to Indonesia that still remain at the Ambon Research Station or now become reference collection of Centre for Deep-Sea Research, LIPI-Ambon, Indonesia. The morphological analyses of fish, crustacea, and mollusc collected during the Rumphius expeditions revealed: 34 species from 23 different genera of fish;21 species from 19 different genera of crustacea;and 60 species from 42 different genera of mollusc. This study demonstrates the value of reference collections as a resource in marine biology science and the important role of archivists in this current pandemic situation.