Aquaculture, Fish and Fisheries最新文献

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Talking the talk and walking the walk: Aquaculture, fish, and fisheries will continue to support the blue revolution and beyond 说到做到:水产养殖、鱼类和渔业将继续支持蓝色革命及其后的发展
IF 1.1
Aquaculture, Fish and Fisheries Pub Date : 2024-07-23 DOI: 10.1002/aff2.202
Christyn Bailey, Ricardo Calado, Joy A. Becker
{"title":"Talking the talk and walking the walk: Aquaculture, fish, and fisheries will continue to support the blue revolution and beyond","authors":"Christyn Bailey, Ricardo Calado, Joy A. Becker","doi":"10.1002/aff2.202","DOIUrl":"10.1002/aff2.202","url":null,"abstract":"<p>2024 marks the third anniversary of <i>Aquaculture, Fish and Fisheries</i>, a multidisciplinary journal centering on the biological, socioeconomic, and cultural impacts of aquaculture, fisheries science, and fish biology, covering a broad range of topics addressing both farmed and wild aquatic plants and animals. As part of this journey, AFF has established a record of sound editorial practices that resulted in the journal being listed on the Directory of Open Access Journals and achieving our first impact factor. Here, we look back at the journey that got us this far and provide a perspective moving forward.</p><p>In our inaugural editorial ‘Aquaculture, Fish and Fisheries: A New Home for the Blue Revolution’, we highlighted our overarching objective was to provide researchers working within all areas of aquaculture, fisheries science, and fish biology a platform to publish their findings, and by doing this, we sought to build a collaborative relationship with the research community (Becker & Calado, <span>2021</span>). Our approach was not to place a value on novelty or global relevance but rather to consider scientifically sound research from a wide range of topics covering all areas and populations around the globe, aiming to attract research from underrepresented areas that needed attention the most (Becker & Calado, <span>2021</span>). Studies of regional scope can be of significant relevance for populations that rely on aquatic ecosystems and their biological resources for their livelihood. Through this process, we have covered a multitude of themes, such as nutrition, sustainability, disease, immunology, conservation, cultural impacts, reproduction, ecology, climate change, pollution, oceanography, management, economics, and policy amongst others. With publications originating from 47 countries and spanning from all the major regions of the globe, we highlight multiple articles from African and Asian countries that have contributed to raising awareness in areas where targeted boosts to sustainable fisheries and aquaculture practices are most needed (FAO, <span>2024</span>). Moreover, a number of authors based in low-income countries were able to benefit from waiver policies to support article processing charges, making their research available to all those who may benefit from it through open access.</p><p>Some of the editorial highlights published thus far have included a review of Nile Tilapia culture in Kenya that explores production technologies and socioeconomic impacts on local livelihoods (Munguti et al., <span>2022</span>); an investigation into the restoration potential of offshore mussel farming on a degraded seabed habitat in the United Kingdom (Bridger et al., <span>2022</span>); an assessment of predatory fish diets in invasive fish species in a traditional Hawaiian aquaculture system (Akiona et al., <span>2022</span>); the evaluation of alternative protein sources in aquaculture in Tanzania (Limbu et al., <span>20","PeriodicalId":100114,"journal":{"name":"Aquaculture, Fish and Fisheries","volume":"4 4","pages":""},"PeriodicalIF":1.1,"publicationDate":"2024-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/aff2.202","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141810426","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The past, present and future developments in mariculture in the coastal waters of mainland Tanzania 坦桑尼亚大陆沿海水域海产养殖业的过去、现在和未来发展
IF 1.1
Aquaculture, Fish and Fisheries Pub Date : 2024-07-22 DOI: 10.1002/aff2.201
Betina Lukwambe, Philip Bwathondi
{"title":"The past, present and future developments in mariculture in the coastal waters of mainland Tanzania","authors":"Betina Lukwambe,&nbsp;Philip Bwathondi","doi":"10.1002/aff2.201","DOIUrl":"10.1002/aff2.201","url":null,"abstract":"<p>Marine coastal resources are crucial to Tanzania's socio-economic development and are a lifeline for the livelihoods and incomes of coastal communities. This study provides an overview of the coastal development of mariculture in mainland Tanzania and suggests future development strategies. The review article covers extensive reports available through field interviews, government policy documents, library literature searches and field work carried out by the authors. Despite the immense potential of mariculture to improve food security for localcommunities, its development has been uneven. Specifically only seaweed farming has advanced to commercial-scale production. Other mariculture activities, such as finfish farming (e.g. milkfish, silver pompano), shellfish farming (e.g. prawn, mud crab and half-pearl) and sea cucumber farming, are underdeveloped and confined to small-scale operations. Locally consumed finfish, such as milkfish and pompano, have not attracted investors out of fear that the recovery of investment may not be achieved due to the low prices offered in the market. In this context, the sustainable use of coastal resources through mariculture becomes paramount to alleviating poverty and facilitating controlled migration from rural to urban. This comprehensive review explores the historical evolution and current status of mariculture initiatives in the coastal waters of mainland Tanzania, which presents a crucial aspect of the socio-economic development of the nation. With declining global capture fisheries production and a growing demand for fish protein, Tanzania has strategically embraced mariculture as a viable alternative. The article traced the development of mariculture since the 1970s, highlighting past and current initiatives managed by government agencies, non-government organizations and the private sector. Notable successes, such as seaweed culture, are highlighted along with the challenges that hinder the growth of marine farming activities. The review integrates insights from a comprehensive survey in coastal Tanzania, focusing on mariculture activities and collecting information on people who have stopped such practices, elucidating reasons for quitting. By consolidating experiences from past and present mariculture initiatives, this review provides valuable guidance for decision-making towards promoting sustainable mariculture that supports coastal communities while preserving marine biodiversity.</p>","PeriodicalId":100114,"journal":{"name":"Aquaculture, Fish and Fisheries","volume":"4 4","pages":""},"PeriodicalIF":1.1,"publicationDate":"2024-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/aff2.201","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141817560","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Saprolegniosis in aquaculture and how to control it? 水产养殖中的蚕豆病及其控制方法?
IF 1.1
Aquaculture, Fish and Fisheries Pub Date : 2024-07-18 DOI: 10.1002/aff2.200
Petra Camilla Lindholm-Lehto, Päivi Pylkkö
{"title":"Saprolegniosis in aquaculture and how to control it?","authors":"Petra Camilla Lindholm-Lehto,&nbsp;Päivi Pylkkö","doi":"10.1002/aff2.200","DOIUrl":"https://doi.org/10.1002/aff2.200","url":null,"abstract":"<p>Saprolegniosis, also called water mould, induces a cotton or wool-like white growth on fish skin. It can kill fish at all stages of life, from eggs to adults. It is caused by oomycetes from the genus <i>Saprolegnia</i> and causes fish mortality and huge financial losses to fish farms and hatcheries. <i>Saprolegnia</i> species are endemic and ubiquitous in all freshwater habitats around the world. The exposing factors for saprolegniosis are still largely unknown, but stressors such as temperature shocks, poor water quality, handling and high fish density have been associated with outbreaks. For decades, malachite green was the most effective treatment against <i>Saprolegnia</i> infection, but it has been banned due to its carcinogenic and toxic effects. This has forced farmers to use alternative disinfection methods against <i>Saprolegnia</i> infection, such as hydrogen peroxide, formalin, Bronopol, NaCl, acetic acid and ozone, although many may have safety concerns or are impractical to use. This has led to the investigation of plant-based compounds with antifungal and antibacterial properties against saprolegniosis. These include extracts of certain herbs, onion, garlic, extracts of the plant <i>Chrysanthemum</i>, essential oils of <i>Eryngium campestre</i>, <i>Mentha piperita</i>, <i>Cuminum cyminum</i> and <i>Thymus linearis</i>, which include a variety of phenolic compounds and fatty acids with antifungal properties. This review combines the current knowledge regarding the predisposing factors to <i>Saprolegnia</i> infections and current methods to prevent and treat them, including those under further research. Thus far, many compounds have been tested and studied, but an effective, suitable and safe compound to treat <i>Saprolegnia</i> infection remains to be found.</p>","PeriodicalId":100114,"journal":{"name":"Aquaculture, Fish and Fisheries","volume":"4 4","pages":""},"PeriodicalIF":1.1,"publicationDate":"2024-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/aff2.200","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141639551","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Evaluation of chlorination and exposure to protease enzymes for singulating Greenshell™ mussel (Perna canaliculus) spat from spat-collector rope 对绿壳™贻贝(Perna canaliculus)从采卵绳上采卵进行氯化和接触蛋白酶的评估
IF 1.1
Aquaculture, Fish and Fisheries Pub Date : 2024-07-18 DOI: 10.1002/aff2.199
Kayleb Himiona, Andrew G. Jeffs, Bradley M. Skelton
{"title":"Evaluation of chlorination and exposure to protease enzymes for singulating Greenshell™ mussel (Perna canaliculus) spat from spat-collector rope","authors":"Kayleb Himiona,&nbsp;Andrew G. Jeffs,&nbsp;Bradley M. Skelton","doi":"10.1002/aff2.199","DOIUrl":"https://doi.org/10.1002/aff2.199","url":null,"abstract":"<p>The early stages of mussel farming are often inefficient with a large proportion of seed (spat) typically lost early in the production cycle. An effective approach for decreasing such losses is to grow spat to larger sizes in nursery systems prior to seeding. However, for such an approach to be commercially viable, spat must first be separated from their settlement substrates into a single seed format, that is, singulated. This study investigated the efficacy of three commercial protease enzymes (Enzidase PAP, PXT and BAP) and chlorine (NaOCl) in singulating Greenshell mussel (<i>Perna canaliculus)</i> spat from spat-collector ropes. Two distinct experiments involved immersing segments of spat collector rope in seawater solutions with varying concentrations (2.5% or 5%) of each enzyme or chlorine (NaOCl) for different exposure times (10, 30 and 60 min for enzymes; 2 and 5 min for chlorine). After the singulation experiments, all spat were recovered with sieves and reintroduced into the tanks with renewed seawater. After 24 h of rearing, the recovery of alive spat was measured. Results indicate that in Experiment 1, involving spat ∼5 mm in size, the singulation rate was up to 65% for protease enzymes (i.e., in the case of 5% PAP at 30 min) and 61% for chlorine (i.e., at 5% for 2 min). In Experiment 2, involving spat ∼1.5 mm in size, the singulation rate was up to 85% for protease enzymes (i.e., in the case of 5% PXT for 60 min) and 78% for chlorine (i.e., of 2.5% for 5 min). However, these treatments generally resulted in elevated spat mortality, which was exacerbated by increasing concentrations and exposure times, resulting in recovery rates of up to 35% (i.e., for 2.5% PAP for 30 min) in Experiment 1 and 26.0% (i.e., for 5% chlorine for 2 min) in Experiment 2. These findings emphasise the necessity for consideration of chemical concentrations and exposure times to optimise the singulation process while highlighting challenges in achieving high post-singulation survival rates. These insights contribute to ongoing efforts aimed at improving the efficiency and sustainability of mussel farming practices, demonstrating the potential utility of protease enzymes and chlorination in singulating spat from settlement substrate prior to their transfer to nursery systems for further ongrowing.</p>","PeriodicalId":100114,"journal":{"name":"Aquaculture, Fish and Fisheries","volume":"4 4","pages":""},"PeriodicalIF":1.1,"publicationDate":"2024-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/aff2.199","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141639657","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Unlocking Nile tilapia (Oreochromis niloticus Linn., 1758) selective breeding programmes in Uganda through geographical genetic structure mapping 通过地理遗传结构图破解乌干达尼罗罗非鱼(Oreochromis niloticus Linn.
IF 1.1
Aquaculture, Fish and Fisheries Pub Date : 2024-07-14 DOI: 10.1002/aff2.197
Papius Dias Tibihika, Cassius Aruho, Victoria Namulawa, Richard Ddungu, Gertrude Atukunda, Margaret Aanyu, Mujibu Nkambo, Thapasya Vijayan, Gerald Kwikiriza, Manuel Curto, Harald Meimberg
{"title":"Unlocking Nile tilapia (Oreochromis niloticus Linn., 1758) selective breeding programmes in Uganda through geographical genetic structure mapping","authors":"Papius Dias Tibihika,&nbsp;Cassius Aruho,&nbsp;Victoria Namulawa,&nbsp;Richard Ddungu,&nbsp;Gertrude Atukunda,&nbsp;Margaret Aanyu,&nbsp;Mujibu Nkambo,&nbsp;Thapasya Vijayan,&nbsp;Gerald Kwikiriza,&nbsp;Manuel Curto,&nbsp;Harald Meimberg","doi":"10.1002/aff2.197","DOIUrl":"https://doi.org/10.1002/aff2.197","url":null,"abstract":"<p>Nile tilapia (<i>Oreochromis niloticus</i>), native to Africa and the Levant, is an important species for both aquaculture and capture fisheries. Despite these attributes, Nile tilapia has been negatively impacted by anthropogenic activities ranging from overfishing and habitat destruction to translocations. These human-mediated activities have threatened the genetic evolutionary integrity of native populations of Nile tilapia and congeneric species through admixture, demographic bottlenecks and introgressive hybridization. In this context, the genetic contrast between farmed/bred strains and wild Nile tilapia populations in the major lakes of Uganda remains understudied. Understanding the genetic structure of Nile tilapia populations in the major water bodies of Uganda (lakes Victoria, Kyoga, Edward, George, Albert and Nile River) is a key resource to guide selective breeding programmes, thus minimizing the effects of maladaptation under both aquaculture and natural stocks. Although the population genetics of Nile tilapia in Uganda's major lakes have been studied, this was based on limited sampling scope, especially in the wild, and the key information on the species could have been overlooked. We fill this knowledge gap by genotyping 756 Nile tilapia individuals from multiple populations for each major water body of Uganda using a panel of 34 microsatellite loci based on the microsatellite genotyping-by-sequencing (SSR-GBS) technique. The results indicate two discrete gene pools/stocks: the Edward-George system and the Albert-Kyoga system-Victoria. Evidence of loss of genetic diversity and admixture of some Nile tilapia stocks was found, most likely resulting from anthropogenic perturbations. This study contributes useful information key for understanding the potential Nile tilapia broodstock sources for selective breeding programmes, aimed at improving aquaculture production in Uganda.</p>","PeriodicalId":100114,"journal":{"name":"Aquaculture, Fish and Fisheries","volume":"4 4","pages":""},"PeriodicalIF":1.1,"publicationDate":"2024-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/aff2.197","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141624439","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Investigation of the pangas (Pangasianodon hypophthalmus) cultivation sustainability in cages at the Ratargul Freshwater Swamp Forest of Bangladesh 孟加拉国拉塔古尔淡水沼泽森林笼养鲮鱼可持续性调查
IF 1.1
Aquaculture, Fish and Fisheries Pub Date : 2024-07-12 DOI: 10.1002/aff2.193
Mrityunjoy Kunda, Md. Abu Kawsar, Diponkor Adikari, Sakib Tahmid Rishan, Ahmed Harun-Al-Rashid, Debasish Pandit
{"title":"Investigation of the pangas (Pangasianodon hypophthalmus) cultivation sustainability in cages at the Ratargul Freshwater Swamp Forest of Bangladesh","authors":"Mrityunjoy Kunda,&nbsp;Md. Abu Kawsar,&nbsp;Diponkor Adikari,&nbsp;Sakib Tahmid Rishan,&nbsp;Ahmed Harun-Al-Rashid,&nbsp;Debasish Pandit","doi":"10.1002/aff2.193","DOIUrl":"https://doi.org/10.1002/aff2.193","url":null,"abstract":"<p>Determining the most appropriate stocking density for a specific fish species in an ambient condition is essential for successful cage aquaculture in terms of profitability which is mainly governed by growth. The current study was conducted to ascertain which stocking density gives the best result of widely cultured species in cage aquaculture, pangas (<i>Pangasianodon hypophthalmus</i>), at swamp forest environment of Ratargul Freshwater Swamp Forest, Bangladesh in terms of growth, production and economic return. Fish were reared for 93 days at three stocking densities, namely 30, 40 and 50 fish/m<sup>3</sup> which were denoted as FSD30, FSD40 and FSD50, respectively, containing three replications of each. Growth and yield comparisons indicated that the stocking density of fish had significant (<i>p</i> &lt; 0.05) effects on growth rate and productivity. Fish cultivated at the maximum density (FSD50) had lower mean weights than fish reared at lower densities. The significantly highest mean weights (376.58 ± 14.65 g) and benefit–cost ratio (BCR) (1.617 ± 0.035) obtained from FSD30 show the suitability of this density in terms of fish growth and profitability of pangas in swamp forest environment.</p>","PeriodicalId":100114,"journal":{"name":"Aquaculture, Fish and Fisheries","volume":"4 4","pages":""},"PeriodicalIF":1.1,"publicationDate":"2024-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/aff2.193","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141608041","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Estimation on growth parameters of Arius maculatus (Thunberg, 1792) along the Thanlwin River Estuary comparing with the observed length and back-calculated length of otolith 根据观测长度和耳石反算长度,估算坦伦河口鲻鱼(Arius maculatus, Thunberg, 1792)的生长参数
IF 1.1
Aquaculture, Fish and Fisheries Pub Date : 2024-07-12 DOI: 10.1002/aff2.195
Thet Htwe Aung, Hsu Yadanar Htet
{"title":"Estimation on growth parameters of Arius maculatus (Thunberg, 1792) along the Thanlwin River Estuary comparing with the observed length and back-calculated length of otolith","authors":"Thet Htwe Aung,&nbsp;Hsu Yadanar Htet","doi":"10.1002/aff2.195","DOIUrl":"https://doi.org/10.1002/aff2.195","url":null,"abstract":"<p>This study examined the growth patterns of the spotted catfish<i>, Arius maculatus</i> (Thunberg, 1792) in the Thanlwin River Estuary throughout the analysis of standard lengths obtained from observed otolith data and back-calculated data. Between April 2023 and January 2024, 516 fish ranging in standard lengths from 8.3 to 33 cm were collected. The annual deposition of annuli in otoliths was confirmed using the marginal increment ratio, with ages ranging from 2 to 9 years. The Dahl-Lea back-calculation method expanded the length at age data to 2472 records for ages 1–9 years. Growth was characterized using Von Bertalanffy growth curves, revealing the significant differences between the observed data (asymptotic length <i>L</i>∞ = 25.34 cm, growth coefficient <i>K</i> = 0.257 year−1 and growth performance index <i>ϕ</i>′ = 2.02) and the back-calculated data (<i>L</i>∞ = 36.23 cm, <i>K</i> = 0.087 year<sup>−1</sup> and <i>ϕ</i>′ = 2.21). The findings of the study suggested that the back-calculated otolith data were more dependable for determining growth parameters compared to the observed otolith data. <i>A. maculatus</i> appears to exhibit slow growth characteristics, suggesting that the environmental conditions in the Thanlwin River Estuary may be deficient for this species. The insights gleaned from this research are crucial for guiding and shaping fishery management policies through informed advice and recommendations.</p>","PeriodicalId":100114,"journal":{"name":"Aquaculture, Fish and Fisheries","volume":"4 4","pages":""},"PeriodicalIF":1.1,"publicationDate":"2024-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/aff2.195","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141608040","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A comparison of sex-specific markers for two wild masu salmon populations in Hokkaido, Japan 日本北海道两个野生马苏鲑种群的性别特异性标记比较
IF 1.1
Aquaculture, Fish and Fisheries Pub Date : 2024-07-09 DOI: 10.1002/aff2.194
Takuya K. Hosoki, Noël M. Clark, Ryo Futamura, Senri Moriyama, Osamu Kishida, Yoichiro Kanno
{"title":"A comparison of sex-specific markers for two wild masu salmon populations in Hokkaido, Japan","authors":"Takuya K. Hosoki,&nbsp;Noël M. Clark,&nbsp;Ryo Futamura,&nbsp;Senri Moriyama,&nbsp;Osamu Kishida,&nbsp;Yoichiro Kanno","doi":"10.1002/aff2.194","DOIUrl":"https://doi.org/10.1002/aff2.194","url":null,"abstract":"<p>We evaluated the utility of three male-specific molecular markers, <i>sdY</i>, <i>sdY 227U</i> and <i>OtY2m</i>, in two wild populations of masu salmon (<i>Oncorhynchus masou</i>) in southwestern Hokkaido, Japan. Male-specific fragments amplified in all phenotypic males across the markers. Phenotypic females were genetically identified as males using <i>sdY</i> (57%) and <i>sdY 227U</i> (4%), but no phenotypic females were identified as males using <i>OtY2m</i>. We conclude that <i>OtY2m</i> was the most reliable sex marker, followed closely by <i>sdY 227U</i>, among those tested in our study populations. Additional research is warranted to test the applicability of these markers in other populations and <i>Oncorhynchus</i> species.</p>","PeriodicalId":100114,"journal":{"name":"Aquaculture, Fish and Fisheries","volume":"4 4","pages":""},"PeriodicalIF":1.1,"publicationDate":"2024-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/aff2.194","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141583901","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Induction of out-of-season spawning in an intensively reared walleye (Sander vitreus) broodstock 诱导集约化饲养的马口鱼(Sander vitreus)种群进行反季节产卵
IF 1.1
Aquaculture, Fish and Fisheries Pub Date : 2024-07-08 DOI: 10.1002/aff2.196
Tyler J. Firkus, Colton Branville, Jared Neibauer, Christopher Hartleb, Kendall Holmes, Emma Hauser, Gregory Fischer
{"title":"Induction of out-of-season spawning in an intensively reared walleye (Sander vitreus) broodstock","authors":"Tyler J. Firkus,&nbsp;Colton Branville,&nbsp;Jared Neibauer,&nbsp;Christopher Hartleb,&nbsp;Kendall Holmes,&nbsp;Emma Hauser,&nbsp;Gregory Fischer","doi":"10.1002/aff2.196","DOIUrl":"https://doi.org/10.1002/aff2.196","url":null,"abstract":"<p>The commercial viability of walleye (<i>Sander vitreus</i>) as an aquaculture species requires that walleye gametes are available year-round so that multiple cohorts of walleye can be brought to market throughout the year. This study aimed to apply photothermal manipulations to three groups of walleye broodstock to induce out-of-season spawning and obtain a year-round supply of fertilized walleye eggs. We manipulated photothermal regimes for three groups of broodstock to induce spawning in February (early), April (in-season), and July (late-season). In autumn, water temperatures were chilled to 8°C in all treatments. The duration of the chill period varied for each treatment with the early, in-season, and late treatments remaining chilled for 6, 18, and 30 weeks, respectively, before being warmed to induce spawning. Fecundity was significantly lower for late-season broodstock. Egg size and gonadosomatic index were significantly smaller in the early-season treatment. Fertilization success was similar for early and in-season treatments but was 0% for eggs from the late-season treatment. Larval survival was significantly lower for walleye from early-season broodstock. Our results suggest that early out-of-season spawning for walleye is possible but comes with tradeoffs of smaller egg size and lower larval survival.</p>","PeriodicalId":100114,"journal":{"name":"Aquaculture, Fish and Fisheries","volume":"4 4","pages":""},"PeriodicalIF":1.1,"publicationDate":"2024-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/aff2.196","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141583929","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The first deployments of pop-up satellite archival tags on black sea bass (Centropristis striata) 首次在黑鲈鱼(Centropristis striata)上部署弹出式卫星档案标签
IF 1.1
Aquaculture, Fish and Fisheries Pub Date : 2024-07-04 DOI: 10.1002/aff2.171
Samir H. Patel, Ricky Alexander, Farrell Davis, Luisa Garcia, Natalie Jennings, William Pappas, Nathan Shivers, Nicole Trenholm
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