Aquaculture Economics & Management最新文献

{"title":"An upstream-downstream externality related to water quality: The case of the Porong River in Indonesia","authors":"F. Jensen, Venticia Hukom, R. Nielsen, M. Nielsen","doi":"10.1080/13657305.2022.2137263","DOIUrl":"https://doi.org/10.1080/13657305.2022.2137263","url":null,"abstract":"Abstract In this paper, we discuss an upstream-downstream externality related to water quality (the level of ammonia) in a river by distinguishing between a non-cooperative and cooperative case. As empirical case, we use the Porong River, which is located in the East Java province of Indonesia. In this river, aquaculture farmers are located downstream while the industrial firms are placed upstream. In both the non-cooperative and cooperative case, we find that the optimal profit by a polyculture is higher than the optimal profit for an industrial firm, and this result is robust to variations in relevant parameter values. Furthermore, by comparing the non-cooperative and cooperative cases, we find that the optimal gain of moving to joint management is reasonably high, and when varying relevant parameter values, this gain remains almost unchanged.","PeriodicalId":48854,"journal":{"name":"Aquaculture Economics & Management","volume":"27 1","pages":"405 - 440"},"PeriodicalIF":3.9,"publicationDate":"2022-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44872362","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"经济学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Market integration across frozen tropical farmed fish fillets in the EU","authors":"J. F. Fernandez Polanco, Ignacio Llorente, A. Lem","doi":"10.1080/13657305.2022.2126553","DOIUrl":"https://doi.org/10.1080/13657305.2022.2126553","url":null,"abstract":"Abstract This article presents the results of a market integration analysis in the European Union market of frozen fillets of subtropical farmed species based on imports of tilapia, pangasius and Nile perch. Market integration across countries and species has been tested using Johansen cointegration in order to deal with price series which have been found to be unit root and stationary in different cases. Results show different scenarios in which the prices of the three species are integrated but with a possible exception for tilapia.","PeriodicalId":48854,"journal":{"name":"Aquaculture Economics & Management","volume":"27 1","pages":"189 - 206"},"PeriodicalIF":3.9,"publicationDate":"2022-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43048704","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"经济学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effects of open water availability on productivity and efficiency of tilapia fish farming","authors":"Sandip Mitra, M. Khan, Md. Takibur Rahman, R. Nielsen, M. Nielsen","doi":"10.1080/13657305.2022.2115578","DOIUrl":"https://doi.org/10.1080/13657305.2022.2115578","url":null,"abstract":"Abstract Intensive pond aquaculture production is increasing and playing a major role in global aquaculture production, especially in developing countries. Empirical evidence shows that the access to and exchange of fresh water in tilapia pond aquaculture is important for making pond production ecologically more sound, efficient and productive. This study investigates productivity and efficiency differences between farms with access to open water resources and farms without access using data obtained from 311 interviews with tilapia farmers in Bangladesh. Propensity Score Matching (PSM) and meta-frontier DEA have been employed to estimate productivity and efficiency differences between the groups. Results show that farms located in areas with access to open water resources are significantly more efficient, but a bit surprisingly less productive than farms located in areas with deficit access to water resources. Furthermore, output could be increased by 29% and 40% without increasing input in areas with good access and limited access to water, respectively. Thus, promoting intensive aquaculture pond production in areas with access to water resources should focus on how to increase productivity, while areas with limited access should focus on optimal use of input in order to improve water quality and efficiency.","PeriodicalId":48854,"journal":{"name":"Aquaculture Economics & Management","volume":"27 1","pages":"315 - 334"},"PeriodicalIF":3.9,"publicationDate":"2022-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47276275","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"经济学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Developing production and financial benchmarks for marine aquaculture from farm data","authors":"C. Engle, Jonathan van Senten, M. Schwarz, Christian Brayden, S. Belle","doi":"10.1080/13657305.2022.2101711","DOIUrl":"https://doi.org/10.1080/13657305.2022.2101711","url":null,"abstract":"Abstract Benchmarking programs for crop and livestock farms have been used by farmers to identify ways to improve farm efficiencies. This study developed a set of benchmarks for oyster, mussel, and seaweed farming in Maine (USA). Farm-level survey data were used to calculate benchmarking metrics for each farm respondent. Results showed the importance of disaggregating benchmarking metrics by production scale, gear type, and whether farms were initial startup (defined in this study as <5 years in business) or established (>5 years in business) farms. The initial analysis of cost structures on individual farms provided useful information from which to identify key categories for disaggregation. Identification of the most important cost inputs further points to which benchmarks will be of greatest value for different groups of farms. Results for oyster farms showed that startup costs per oyster harvested were lowest ($0.20/oyster) on established bottom culture farms as compared to $0.96/oyster for established suspended oyster farms, and highest ($1.75/oyster) on startup oyster farms. Profits (Net Farm Income) per oyster were greatest on established bottom oyster farms followed by established suspended oyster farms, but were negative on average, for startup farms. Per-hectare, however, profits were greater on established suspended than bottom culture oyster farms. Labor efficiencies were also greatest for established suspended oyster farms (65 oysters/hour of labor), followed by established bottom culture oyster farms (55 oysters/hour of labor), with the lowest labor efficiency (44 oysters/hour of labor) for startup oyster farms. Given the inherent variability among aquaculture farms, adequate numbers of observations of participating farmers are necessary within each production scale/gear type and startup/established categories for benchmarks to be of value. For emerging sectors of aquaculture, benchmarking metrics can be useful for navigating the critical startup period, but obtaining sufficient numbers of observations is a challenge. Benchmarking metrics for established farm businesses provide guidance on the levels of production and economic performance necessary to be successful. Overall, benchmark values are most useful when applied in a holistic fashion that takes into consideration the performance of the farm across all production, revenue, expense, and efficiency categories (labor, capital, and financial).","PeriodicalId":48854,"journal":{"name":"Aquaculture Economics & Management","volume":"27 1","pages":"352 - 381"},"PeriodicalIF":3.9,"publicationDate":"2022-08-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47717222","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"经济学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Price relationships along the Norwegian salmon value chains: A comparative study of the leading consumption market in France and the largest processing industry in Poland","authors":"M. Svanidze, Guðrún Ólafsdóttir, I. Đurić, M. Thakur","doi":"10.1080/13657305.2022.2104403","DOIUrl":"https://doi.org/10.1080/13657305.2022.2104403","url":null,"abstract":"Abstract This study investigates price relationships along the Norwegian salmon value chains in France, the EU’s leading consumption market for salmon, and Poland, the EU’s largest “processing hub.” Using a vector error correction model framework, our results indicate that the salmon price determination is a supplier-driven process, with the export prices in Norway influencing prices in France and Poland, but not vice versa. Results also suggest that price linkages are strong between the export market in Norway and the retail market in France and the processing industry in Poland; however, the Polish retail sector is separated from markets at the upstream level, while price discovery at the French wholesale market is dominated by the retail market. Our findings imply that the evolved market structures lead to efficiently functioning retail markets in France and wholesale markets in Poland, but put the French wholesale and Polish retail markets at a disadvantage.","PeriodicalId":48854,"journal":{"name":"Aquaculture Economics & Management","volume":"27 1","pages":"382 - 404"},"PeriodicalIF":3.9,"publicationDate":"2022-08-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44303999","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"经济学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A comparison of mixed logit and latent class models to estimate market segments for seafood faced with ocean acidification","authors":"Nelyda Campos-Requena, Felipe Vásquez-Lavín, Francisco Fernández, Manuel Barrientos, S. Gelcich, Roberto D. Ponce Oliva","doi":"10.1080/13657305.2022.2100005","DOIUrl":"https://doi.org/10.1080/13657305.2022.2100005","url":null,"abstract":"Abstract This study uses a choice experiment to characterize market segments (consumer preferences heterogeneity) based on three attributes of seafood (mussels) that are affected by ocean acidification: shell appearance, meat color, and nutritional composition. Using a sample of 1,257 individuals from two main cities in Chile, we estimate both the Mixed Logit model and the Latent Class model. We use the individual-specific posterior (ISP) parameters’ distribution to categorize consumers’ heterogeneity based on the signs and intensity (i.e., like or dislike dimension) of these ISPs. We compare the pattern of preferences and whether people are classified within the same preference pattern in both models. In general, we observed that the models identify a different number of segments with various patterns of preferences. Moreover, the models classify the same people into different groups. Since the segmentation is sensitive to the chosen model, we discuss strengths, inconsistencies, biases, and best practices regarding methodological approaches to establishing market segments in choice experiments and future ocean acidification conditions.","PeriodicalId":48854,"journal":{"name":"Aquaculture Economics & Management","volume":"27 1","pages":"282 - 314"},"PeriodicalIF":3.9,"publicationDate":"2022-07-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44788769","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"经济学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Assessing fish farm economic performance and access to financial services nexus: Empirical evidence from Ghana","authors":"Martinson Ankrah Twumasi, Dennis Asante, I. Asante, B. Addai, Yuansheng Jiang","doi":"10.1080/13657305.2022.2099480","DOIUrl":"https://doi.org/10.1080/13657305.2022.2099480","url":null,"abstract":"Abstract This study assesses the factors influencing of access to financial services (AFS) and its impact on fish farm economic performance by employing a multiple-stage random sampling approach to sample 131 fish farms from two regions in Ghana. We accounted for the selection bias issue using the endogenous treatment regression model. The results reveal that factors such asgender, education, fish farm size, asset ownership, off-farm work, and distance influence farmers' access to financial services. The result also showed that AFS improves fish farm economic performance. Moreover, we observe that female farmers and high-income households with access to financial services have higher fish yields and net returns than their counterparts. The study’s findings have provided evidence that AFS can be a transmission route in the efforts to enhance aquaculture development in the nation. Our results serve as a call to the government and policymakers to provide strategies and methods to make financial services accessibility easy and straightforward.","PeriodicalId":48854,"journal":{"name":"Aquaculture Economics & Management","volume":"27 1","pages":"249 - 266"},"PeriodicalIF":3.9,"publicationDate":"2022-07-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49165818","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"经济学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Dynamics of price volatility spillover in the U.S. catfish market","authors":"Prasanna Surathkal, M. Dey, Pratheesh O. Sudhakaran","doi":"10.1080/13657305.2022.2074171","DOIUrl":"https://doi.org/10.1080/13657305.2022.2074171","url":null,"abstract":"Abstract The U.S. catfish aquaculture industry is arguably one of the earliest aquaculture segments in the world to industrialize, and a pioneer in demonstrating the benefits of innovation-driven aquaculture supply chain development over wild-harvested fisheries. However, the industry substantially contracted through the 2003–2013 period. High and volatile feed prices, volatile farm prices, a rapid surge in low-priced imports, and a strict regulatory compliance burden on a maturing industry are thought to be some of the major factors causing this decline. We analyze the price volatility spillovers in the U.S. catfish industry and the related feed/feed ingredient markets. Our empirical model is the multivariate generalized autoregressive conditional heteroscedasticity (GARCH) model allowing for cross-market and own-market impacts from shocks and volatilities in prices. Our results indicate bidirectional spillovers among catfish market prices and most of the feed ingredient prices.","PeriodicalId":48854,"journal":{"name":"Aquaculture Economics & Management","volume":"26 1","pages":"301 - 313"},"PeriodicalIF":3.9,"publicationDate":"2022-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46911270","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"经济学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Seafood markets in transition","authors":"Hans‐Martin Straume, Pratheesh O. Sudhakaran","doi":"10.1080/13657305.2022.2102091","DOIUrl":"https://doi.org/10.1080/13657305.2022.2102091","url":null,"abstract":"This special issue of Aquaculture Economics & Management features fives articles based on the 25 contributions presented at the International Association of Aquaculture Economics and Management (IAAEM) spon-sored section on economics and marketing at the Aquaculture America conference in San Antonio, August 11 – 14, 2021. This was a very good turn-out for one of the first aquaculture conference following the Covid-19 pandemic. The contributions covered topics on different farmed species groups and with a global scope. The section provided an arena to discuss issues related to risk management, regulations, trade, seafood certification, consumers ’ preferences, market integration, product differentiation, mari-culture tourism, food security, effects and contribution of aquaculture to the regional economy. The papers in this special issue reflect a variety of topics also seen in the section during the conference.","PeriodicalId":48854,"journal":{"name":"Aquaculture Economics & Management","volume":"26 1","pages":"253 - 258"},"PeriodicalIF":3.9,"publicationDate":"2022-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44540579","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"经济学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A tribute to Professor Clem Tisdell (1939 to 2022), founding coeditor of Aquaculture Economics & Management and member of the organizing team of the International Association of Aquaculture Economics & Management","authors":"C. Engle, P. Leung","doi":"10.1080/13657305.2022.2107117","DOIUrl":"https://doi.org/10.1080/13657305.2022.2107117","url":null,"abstract":"","PeriodicalId":48854,"journal":{"name":"Aquaculture Economics & Management","volume":"26 1","pages":"251 - 252"},"PeriodicalIF":3.9,"publicationDate":"2022-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45127208","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"经济学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}