Forum Discussions - AquacultureHub2024-03-29T11:09:36Zhttp://www.aquaculturehub.org/forum/topic/list?feed=yes&xn_auth=no&sort=mostRecentChitosan Decelerates Melanosis in Shrimp: A Novel Technique for Visual Quality Assessment Using Digital Image Analysistag:www.aquaculturehub.org,2023-11-24:4021269:Topic:2902862023-11-24T20:02:29.824ZAquacultureHub Teamhttp://www.aquaculturehub.org/profile/Aquaculture
<p><span>The study aimed to determine the effects of chitosan, sodium metabisulfite, and citric acid against melanosis, which causes significant economic losses during the storage of shrimps. For this purpose, two different types of chitosan were extracted from tiger prawn shell wastes. The extracted chitosan was characterized by viscosity, FT-IR, XRD, SEM imaging, and color analyses. Prevention of melanosis formation was investigated by testing chitosan, sodium metabisulfite, and citric acid.…</span></p>
<p><span>The study aimed to determine the effects of chitosan, sodium metabisulfite, and citric acid against melanosis, which causes significant economic losses during the storage of shrimps. For this purpose, two different types of chitosan were extracted from tiger prawn shell wastes. The extracted chitosan was characterized by viscosity, FT-IR, XRD, SEM imaging, and color analyses. Prevention of melanosis formation was investigated by testing chitosan, sodium metabisulfite, and citric acid. To achieve this, fresh deep-water pink shrimp samples immersed in different solutions were stored for 12 days at 4℃. Melanosis formation in the samples was observed via color measurement, sensory evaluation, and image analysis. According to the results of the research, the deacetylation degrees of chitosans were found to be 99.50 and 89.51% and 76.31 and 78.24% by two different methods, respectively. Viscosities were measured as 0.34 and 4.17 cSt, respectively. Regarding the color parameters, the L* values were 83.68 and 78.94, a* values were 0.55 and 2.71, and b* values were 10.33 and 13.85, respectively. According to the sensory evaluation conducted throughout the study, melanosis formation was observed in all groups starting from the 6th day. On the 8th day, the control groups exceeded the acceptability threshold, and on the 12th day, melanosis formation spread throughout the body in all groups. The sensory evaluation results were supported by the color measurement and image analysis implemented for the first time in this study. The present study’s results showed that chitosan obtained from shellfish wastes decelerates melanosis formation as an alternative to commercially used chemicals.</span></p>
<p><span><a href="https://ija.scholasticahq.com/article/88509" target="_blank" rel="noopener">https://ija.scholasticahq.com/article/88509</a></span></p> Aquaculture Management Systemtag:www.aquaculturehub.org,2023-08-09:4021269:Topic:2897432023-08-09T09:56:09.946ZNikola Krlovichttp://www.aquaculturehub.org/profile/NikolaKrlovic
<p>Hey fellow aqua-folk!<br></br><br></br>I am developing an asset management system for RAS. Would any large-scale farmers be willing to run the pilot software as a proof of concept, once it is done?<br></br><br></br>Thanks,<br></br><br></br>Details below :</p>
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<p>---<br></br><br></br>I am currently heading my own consulting and engineering firm in Serbia, where we are developing an aquaculture digital solution. This will soon turn into its own legal entity in the form of a startup. I would like to discuss…</p>
<p>Hey fellow aqua-folk!<br/><br/>I am developing an asset management system for RAS. Would any large-scale farmers be willing to run the pilot software as a proof of concept, once it is done?<br/><br/>Thanks,<br/><br/>Details below :</p>
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<p>---<br/><br/>I am currently heading my own consulting and engineering firm in Serbia, where we are developing an aquaculture digital solution. This will soon turn into its own legal entity in the form of a startup. I would like to discuss with your RAS technical leads whether you could benefit from our pilot product.<br/><br/>But to summarize :<br/><br/>We are building an aquaculture management system (AMS) that will help a variety of stakeholders better operate their farms. This includes, among other factors :</p>
<ul>
<li>Asset management systems</li>
<li>Early warning detection</li>
<li>Lifetime and Life Cycle analysis</li>
<li>Maintenance assistance</li>
<li>Data analysis and modelling interface</li>
</ul>
<p>We are aware of the unpredictability and severity of missed management opportunities. Our project aims to assist you in developing a more economic and sustainable approach. We are also aware that we are a startup, so we are ready to offer special benefits to a plant that opens for collaboration.<br/><br/></p> All Eyes on Deck: The Republic of Ghana Commits to 100% Transparency on Industrial Fishing Vesselstag:www.aquaculturehub.org,2023-04-02:4021269:Topic:2887792023-04-02T03:47:24.138ZAquacultureHub Teamhttp://www.aquaculturehub.org/profile/Aquaculture
<p><a href="https://storage.ning.com/topology/rest/1.0/file/get/11019219054?profile=original" rel="noopener" target="_blank"><img class="align-center" src="https://storage.ning.com/topology/rest/1.0/file/get/11019219054?profile=RESIZE_710x" width="450"></img></a></p>
<p>In a first for West Africa, The Republic of Ghana announced its commitment to achieving 100 percent transparency in industrial fisheries operating within the exclusive economic zone by 2025. This goal will be reached through video cameras, remote sensors, Global Positioning Systems (GPS), and hard drives installed on fishing boats, jointly known as…</p>
<p><a href="https://storage.ning.com/topology/rest/1.0/file/get/11019219054?profile=original" target="_blank" rel="noopener"><img src="https://storage.ning.com/topology/rest/1.0/file/get/11019219054?profile=RESIZE_710x" width="450" class="align-center"/></a></p>
<p>In a first for West Africa, The Republic of Ghana announced its commitment to achieving 100 percent transparency in industrial fisheries operating within the exclusive economic zone by 2025. This goal will be reached through video cameras, remote sensors, Global Positioning Systems (GPS), and hard drives installed on fishing boats, jointly known as Electronic Monitoring Systems (EMS), to monitor fishing activities and collect valuable data like fishing effort, catch composition, bycatch, and human welfare.</p>
<p>These electronic systems provide additional information to improve oversight of the fishing activity. Fisheries managers and the private sector will use them to understand what species are caught, where, and how much. This information is essential for the Government of Ghana and the supply chains for fish caught in Ghana to ensure transparent reporting of compliance and legality and better manage marine resources.</p>
<p>What about the rest of the countries? Are they going to follow this example?</p>
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<p>Photo of Frozen Yellowfin Tuna by Jason Houston</p>
<p>Source: <a href="https://www.nature.org/en-us/newsroom/ghana-commits-to-electronic-monitoring/">https://www.nature.org/en-us/newsroom/ghana-commits-to-electronic-monitoring/</a> </p>
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<p></p> Aquaculture REEU Fellowship in Mainetag:www.aquaculturehub.org,2023-02-13:4021269:Topic:2873782023-02-13T22:08:44.031ZMeggan Dwyerhttp://www.aquaculturehub.org/profile/MegganDwyer
<div dir="auto">We are pleased to announce a new USDA Research and Extension Experience for Undergraduates (REEU) at the University of Maine's <a href="https://umaine.edu/nativeamericanprograms/wabanaki-center/" rel="noopener" target="_blank">Wabanaki Center</a> and <a href="https://umaine.edu/aquaculture/" rel="noopener" target="_blank">Aquaculture Research Institute (ARI)</a> and in collaboration with <a href="https://www.wabanakiyouthinscience.org/" rel="noopener" target="_blank">Wabanaki…</a></div>
<div dir="auto">We are pleased to announce a new USDA Research and Extension Experience for Undergraduates (REEU) at the University of Maine's <a href="https://umaine.edu/nativeamericanprograms/wabanaki-center/" target="_blank" rel="noopener">Wabanaki Center</a> and <a href="https://umaine.edu/aquaculture/" target="_blank" rel="noopener">Aquaculture Research Institute (ARI)</a> and in collaboration with <a href="https://www.wabanakiyouthinscience.org/" target="_blank" rel="noopener">Wabanaki Youth in Science</a>. This unique fellowship <span>offers undergraduate students from around the nation an opportunity to combine traditional ecological knowledge from indigenous science with STEM concepts from western science to solve real-world problems in aquaculture at the University of Maine’s world class aquaculture facilities. Mentorship will be provided by interdisciplinary faculty and traditional knowledge keepers of the Wabanaki tribes.</span></div>
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<div dir="auto">Through this fellowship, students will <span>have an array of research foci from which to choose. They will co-design projects using concepts learned from their mentors as well as a seminar, field trips, and workshops in traditional ecological knowledge, applied aquaculture science, science communications, and STEM concepts. Students will live at the University of Maine in Orono </span><span>for 10 weeks </span><span>and will participate in a virtual seminar before they arrive.</span></div>
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<div dir="auto">We invite students and faculty to learn more about the <a href="https://umaine.edu/aquaculture/education/4701-2/" target="_blank" rel="noopener">Aquaculture Experiential Opportunities for Undergraduate Students </a>(AquEOUS) Fellowship and apply by <b>March 15th.</b> Please feel free to share with anyone who may be interested in this unique program. </div>
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<div dir="auto">If you have any questions or need additional information, please do not hesitate to contact us directly at <a href="mailto:ari@maine.edu" target="_blank" rel="noopener">ari@maine.edu</a>.</div> US court orders ban on New Zealand (NZ) seafood exports in Māui dolphin casetag:www.aquaculturehub.org,2022-12-12:4021269:Topic:2874462022-12-12T06:49:46.381ZAquacultureHub Teamhttp://www.aquaculturehub.org/profile/Aquaculture
<p><span>US court orders ban on NZ seafood exports in Māui dolphin case</span></p>
<p><span>A US court <a href="https://www.cit.uscourts.gov/sites/cit/files/22-130.pdf">has ordered an immediate ban</a> on New Zealand exports of snapper, tarakihi, spotted dogfish, trevally, warehou, hoki, barracouta, mullet, and gurnard from the inshore trawl fishery and inshore gillnet fishery off the west coast of the North Island.…</span></p>
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<p><span>US court orders ban on NZ seafood exports in Māui dolphin case</span></p>
<p><span>A US court <a href="https://www.cit.uscourts.gov/sites/cit/files/22-130.pdf">has ordered an immediate ban</a> on New Zealand exports of snapper, tarakihi, spotted dogfish, trevally, warehou, hoki, barracouta, mullet, and gurnard from the inshore trawl fishery and inshore gillnet fishery off the west coast of the North Island.</span></p>
<p><a href="https://www.stuff.co.nz/business/300751827/us-court-orders-ban-on-nz-seafood-exports-in-mui-dolphin-case" target="_blank" rel="noopener">https://www.stuff.co.nz/business/300751827/us-court-orders-ban-on-nz-seafood-exports-in-mui-dolphin-case</a></p> Industry-finance integration activities are beneficial to the improvement of business performance of fishery companiestag:www.aquaculturehub.org,2022-12-11:4021269:Topic:2875322022-12-11T19:05:03.789ZAquacultureHub Teamhttp://www.aquaculturehub.org/profile/Aquaculture
<p><a href="https://storage.ning.com/topology/rest/1.0/file/get/10907840262?profile=original" rel="noopener" target="_blank"><img class="align-center" src="https://storage.ning.com/topology/rest/1.0/file/get/10907840262?profile=RESIZE_710x" width="350"></img></a></p>
<p><span>Industry-finance integration activities are beneficial to the improvement of business performance of fishery companies—Based on the DEA-CCR Model and DEA-Malmquist Model…</span></p>
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<p><a href="https://storage.ning.com/topology/rest/1.0/file/get/10907840262?profile=original" target="_blank" rel="noopener"><img src="https://storage.ning.com/topology/rest/1.0/file/get/10907840262?profile=RESIZE_710x" width="350" class="align-center"/></a></p>
<p><span>Industry-finance integration activities are beneficial to the improvement of business performance of fishery companies—Based on the DEA-CCR Model and DEA-Malmquist Model</span></p>
<p><span><a class="doi-link" target="_blank" href="https://doi.org/10.46989/001c.55606" rel="noopener">https://doi.org/10.46989/001c.55606</a></span></p> Need of the hourtag:www.aquaculturehub.org,2022-11-01:4021269:Topic:2873022022-11-01T23:05:51.782ZGangadhar Karanamhttp://www.aquaculturehub.org/profile/GangadharKaranam
Both Asian countries, which are the top two producers of fresh water fish, must have a modern transportation system. Keeping in view the increasing demand for supply of live fish in the market, there is an urgent need for a cheap modern transport system for supply of live fish from the fish farm to distant markets.
Both Asian countries, which are the top two producers of fresh water fish, must have a modern transportation system. Keeping in view the increasing demand for supply of live fish in the market, there is an urgent need for a cheap modern transport system for supply of live fish from the fish farm to distant markets. Hands-On, Zebrafish Short Course at UAB this Summertag:www.aquaculturehub.org,2022-06-05:4021269:Topic:2863402022-06-05T18:08:20.761ZErik Sandershttp://www.aquaculturehub.org/profile/ErikSanders
<div>I am pleased to announce that we will be offering the Summer Short Course at UAB in Birmingham Alabama this year.</div>
<div>The course had been held every summer, until the COVID pandemic put it on hold for the last 2 years.</div>
<div>This may be a great opportunity for staff sharing husbandry/veterinary/administrative responsibilities to get some hands-on experience in zebrafish husbandry, and to do some valuable networking.</div>
<div>If interested, Please see the information…</div>
<div>I am pleased to announce that we will be offering the Summer Short Course at UAB in Birmingham Alabama this year.</div>
<div>The course had been held every summer, until the COVID pandemic put it on hold for the last 2 years.</div>
<div>This may be a great opportunity for staff sharing husbandry/veterinary/administrative responsibilities to get some hands-on experience in zebrafish husbandry, and to do some valuable networking.</div>
<div>If interested, Please see the information below.</div>
<div>FYI: registration is limited to 24 attendees, and there are a few spots left at this time.</div>
<div>Registration Link:</div>
<div><a href="https://prostudies.uab.edu/search/publicCourseSearchDetails.do?method=load&courseId=8109047" rel="noopener noreferrer">https://prostudies.uab.edu/search/publicCourseSearchDetails.do?method=load&courseId=8109047</a><<a href="https://protect-za.mimecast.com/s/RHueCMjBW0fj23NQFwmGGP?domain=prostudies.uab.edu" rel="noopener noreferrer">https://protect-za.mimecast.com/s/RHueCMjBW0fj23NQFwmGGP?domain=prostudies.uab.edu</a>></div>
<div>Zebrafish Husbandry Education Short Course, June 2022</div>
<div>Time: 8:00AM to 6:00PM</div>
<div>Dates: Jun 26, 2022 to Jul 01, 2022</div>
<div>*Hotel and most meals included in the cost.</div>
<div>**Travel expenses not covered.</div>
<div>If you have any questions, please don't hesitate to contact me.</div>
<div>Sincerely,</div>
<div><div class="x-apple-signature" style="white-space: pre-wrap;">Erik Sanders B.S. RALAT</div>
<div class="x-apple-signature" style="white-space: pre-wrap;">Aquatics Lab Services LLC</div>
<div class="x-apple-signature" style="white-space: pre-wrap;">1112 Nashville Street</div>
<div class="x-apple-signature" style="white-space: pre-wrap;">St. Peters, MO 63376</div>
<div class="x-apple-signature" style="white-space: pre-wrap;">314-724-3800 <a href="http://www.aquaticslabservices.com" rel="noopener noreferrer"></a></div>
<div class="x-apple-signature" style="white-space: pre-wrap;"><a href="http://www.aquaticslabservices.com" rel="noopener noreferrer">www.aquaticslabservices.com</a></div>
<div class="x-apple-signature" style="white-space: pre-wrap;"><a href="mailto:aquaticslabservices@icloud.com">aquaticslabservices@icloud.com</a></div>
</div> Ocean Sea Cage Culturetag:www.aquaculturehub.org,2021-05-23:4021269:Topic:2821502021-05-23T09:15:54.602ZDon Bakerhttp://www.aquaculturehub.org/profile/DonBaker581
<p>I have installed a 14 meter diameter HDPE type sea cage nearby a coral reef.</p>
<p><a href="https://storage.ning.com/topology/rest/1.0/file/get/8958168264?profile=original" rel="noopener" target="_blank"><img class="align-left" src="https://storage.ning.com/topology/rest/1.0/file/get/8958168264?profile=RESIZE_710x" width="200"></img></a></p>
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<p>Depth of reef is at 20 Meters.</p>
<p>Depth of sea cage net is 8 meters.</p>
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<p>Current flow can be upwards to 2 meters / second flow. But not constant. Only during tide changes.</p>
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<p>Stocked sea cage with test tails # of 200 - Barramundi at…</p>
<p>I have installed a 14 meter diameter HDPE type sea cage nearby a coral reef.</p>
<p><a href="https://storage.ning.com/topology/rest/1.0/file/get/8958168264?profile=original" target="_blank" rel="noopener"><img src="https://storage.ning.com/topology/rest/1.0/file/get/8958168264?profile=RESIZE_710x" width="200" class="align-left"/></a></p>
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<p>Depth of reef is at 20 Meters.</p>
<p>Depth of sea cage net is 8 meters.</p>
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<p>Current flow can be upwards to 2 meters / second flow. But not constant. Only during tide changes.</p>
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<p>Stocked sea cage with test tails # of 200 - Barramundi at average length 25 cm.</p>
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<p>Fed stock every two days with cut up locally caught trash fish - No head;no tails.</p>
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<p>After 2 weeks was getting death of 3 to 4 tails noted on feed days.</p>
<p>Death continued until total loss of 200 tails.</p>
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<p>What am I doing wrong!?</p>
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<p>Requesting any recommendations, comments, questions.</p>
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<p>I can grow the sea bass quite nicely to 1.5kg ABW in the tank grow-out facility. </p>
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<p><a href="https://aquaculturereefguardian.wordpress.com/">https://aquaculturereefguardian.wordpress.com/</a></p>
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<p>Don Baker</p>
<p>Aquaculture Reef Guardian</p>
<p>Sabah-Semporna, Malaysia</p>
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<p></p> Molecular characterization and expression of the related-male gene sox30 in the common carp Cyprinus carpiotag:www.aquaculturehub.org,2021-03-13:4021269:Topic:2820212021-03-13T17:13:52.871ZAquacultureHub Teamhttp://www.aquaculturehub.org/profile/Aquaculture
<p><a href="https://ija.scholasticahq.com/article/21467" target="_blank" rel="noopener">Molecular characterization and expression of the related-male gene sox30 in the common carp Cyprinus carpio</a></p>
<p><a href="https://ija.scholasticahq.com/article/21467" target="_blank" rel="noopener">Molecular characterization and expression of the related-male gene sox30 in the common carp Cyprinus carpio</a></p>