use of immune Immune stimuli can increase survival against pathogens by enhancing the nonspecific defense mechanism [10]. Also, in a study on thermal marking of fish pebbles, which was performed by exposing Chinese high-fin banded shark larvae to temperature regimes from hot water 28°C to cold water 16°C, it was found that the incremental patterns of pebbles were different in each group. In this way, by controlling the duration of presence in hot water, narrower or wider incremental patterns could be obtained. A deep and positive relationship between the width of the incremental pattern and the duration of cultivation in hot water in each cycle of water temperature fluctuation could be seen. Unusually, it is proposed as a solution to distinguish breeding people from species grown in nature [11]. Studies have also shown that those in the 24-hour temperature cycle provided clear, high-contrast patterns compared to constant-temperature findings [12]. Abstract It will not be possible to get the biological course and to know the biological species without a comprehensive knowledge of different species, especially their important species from different landscapes. Chinese high-fin banded shark is a species of biological and geogeological importance about which little resources and research have been done. This fish is also of special importance from an evolutionary point of view. The present article tries to examine the general characteristics, general needs, and methods required.
{"title":"Introduction to Vital Biological and Regenerative Factors Myxocyprinus asiaticus","authors":"Mohammad Forouhar Vajargah","doi":"10.31038/afs.2021343","DOIUrl":"https://doi.org/10.31038/afs.2021343","url":null,"abstract":"use of immune Immune stimuli can increase survival against pathogens by enhancing the nonspecific defense mechanism [10]. Also, in a study on thermal marking of fish pebbles, which was performed by exposing Chinese high-fin banded shark larvae to temperature regimes from hot water 28°C to cold water 16°C, it was found that the incremental patterns of pebbles were different in each group. In this way, by controlling the duration of presence in hot water, narrower or wider incremental patterns could be obtained. A deep and positive relationship between the width of the incremental pattern and the duration of cultivation in hot water in each cycle of water temperature fluctuation could be seen. Unusually, it is proposed as a solution to distinguish breeding people from species grown in nature [11]. Studies have also shown that those in the 24-hour temperature cycle provided clear, high-contrast patterns compared to constant-temperature findings [12]. Abstract It will not be possible to get the biological course and to know the biological species without a comprehensive knowledge of different species, especially their important species from different landscapes. Chinese high-fin banded shark is a species of biological and geogeological importance about which little resources and research have been done. This fish is also of special importance from an evolutionary point of view. The present article tries to examine the general characteristics, general needs, and methods required.","PeriodicalId":262559,"journal":{"name":"Aquaculture and Fisheries Studies","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134367517","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
E. Baran, T. Visser, A. Tessier, E. Guerin, J. Guillard
The is on the fishery as a whole, the combination of fish, fishers, and economic and policy context The need to integrate customer demand and marketing to sustainable fisheries management in in particular in the Mekong we consider here fish supply, fish demand/marketing and the environment policy as the three main pillars of a sustainable fishery, knowing that several other factors such as biological productivity, algae blooms, limnological aspects, land-uses in the catchment areas, fishing gears are also important [14]. Our study focuses only on a reservoir fishery, it does not include upstream or downstream fisheries. We set the stage by identifying the various components of a generic tropical reservoir fishery, and then document how much is known and has been done about each component in the case of Nam Theun 2. This highlights strengths and weaknesses in the knowledge base needed for the management of the system. Ultimately, the various degrees of control of managers over the fishery system and its components are identified. Abstract Starting from a framework defining a fishery as a combination of environmental, biological, social, economic and policy components, we review the development process and current status of the reservoir fishery of Nam Theun 2 Dam in Lao PDR. The aquatic environment was extensively studied and fishing monitored; the reservoir features a low productivity. Regulation remains weak and social studies focused mainly on socioeconomic aspects, without documenting aspirations or constraints of the fishing community nor detailing fish consumption. Fish prices were monitored, but non-official trades, demands and competitions remain to be assessed. Facilitation and restrictions are documented but the trade policy framework is not, nor the consequences of regulatory measures. We last identify the degrees of control of managers over the fishery system and its components. This analysis highlights the need to apprehend a controlled reservoir fishery as a combination of aquatic habitat, and their and environment.
{"title":"A Case Study of Fisheries Governance and Management in a Reservoir of Lao PDR: Perspectives for Improvement","authors":"E. Baran, T. Visser, A. Tessier, E. Guerin, J. Guillard","doi":"10.31038/afs.2021335","DOIUrl":"https://doi.org/10.31038/afs.2021335","url":null,"abstract":"The is on the fishery as a whole, the combination of fish, fishers, and economic and policy context The need to integrate customer demand and marketing to sustainable fisheries management in in particular in the Mekong we consider here fish supply, fish demand/marketing and the environment policy as the three main pillars of a sustainable fishery, knowing that several other factors such as biological productivity, algae blooms, limnological aspects, land-uses in the catchment areas, fishing gears are also important [14]. Our study focuses only on a reservoir fishery, it does not include upstream or downstream fisheries. We set the stage by identifying the various components of a generic tropical reservoir fishery, and then document how much is known and has been done about each component in the case of Nam Theun 2. This highlights strengths and weaknesses in the knowledge base needed for the management of the system. Ultimately, the various degrees of control of managers over the fishery system and its components are identified. Abstract Starting from a framework defining a fishery as a combination of environmental, biological, social, economic and policy components, we review the development process and current status of the reservoir fishery of Nam Theun 2 Dam in Lao PDR. The aquatic environment was extensively studied and fishing monitored; the reservoir features a low productivity. Regulation remains weak and social studies focused mainly on socioeconomic aspects, without documenting aspirations or constraints of the fishing community nor detailing fish consumption. Fish prices were monitored, but non-official trades, demands and competitions remain to be assessed. Facilitation and restrictions are documented but the trade policy framework is not, nor the consequences of regulatory measures. We last identify the degrees of control of managers over the fishery system and its components. This analysis highlights the need to apprehend a controlled reservoir fishery as a combination of aquatic habitat, and their and environment.","PeriodicalId":262559,"journal":{"name":"Aquaculture and Fisheries Studies","volume":"58 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120950615","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Numbers of salmon returning to Scottish rivers from their marine feeding grounds have fallen overall since at least 1971 [1]. This has led to widespread concerns about the poor state of wild salmon populations around Scotland [2]. These concerns have grown in recent years with [3-5] all showing total annual catches of Atlantic salmon have declined significantly in rivers in the NW Highlands. Recreational rod catch data recorded by Marine Scotland, however, hints at a more complex picture of Scottish salmon which appear to have been relatively stable overall between 1950 and 2010 (Figure 1).
{"title":"Merged Data Hides Differences in the Catch Trends of Scottish Salmon","authors":"M. Jaffa","doi":"10.31038/afs.2021334","DOIUrl":"https://doi.org/10.31038/afs.2021334","url":null,"abstract":"Numbers of salmon returning to Scottish rivers from their marine feeding grounds have fallen overall since at least 1971 [1]. This has led to widespread concerns about the poor state of wild salmon populations around Scotland [2]. These concerns have grown in recent years with [3-5] all showing total annual catches of Atlantic salmon have declined significantly in rivers in the NW Highlands. Recreational rod catch data recorded by Marine Scotland, however, hints at a more complex picture of Scottish salmon which appear to have been relatively stable overall between 1950 and 2010 (Figure 1).","PeriodicalId":262559,"journal":{"name":"Aquaculture and Fisheries Studies","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129297186","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Chitons or polyplacophores constitute a of the eight classes of the filum Mollusca. They are generally small, flattened and elongated animals, provided with eight (8) overlapping dorsal plates or valves, bordered by a belt of scales and/or calcareous spicules formed by the mantle, called perinotum. The cavity of the mantle encloses the foot, which is expands forming a large sole, which not only serves for the locomotion but also to maintain firm contact with the surface of the substrates where they live (Gracia C. et al. 2005: 117) (Figure 1).
石鳖或多placophores构成八纲软体动物中的一类。它们通常是小的，扁平的和细长的动物，具有8个重叠的背板或瓣，边缘是鳞片带和/或由地幔形成的钙质针状体，称为会阴。地幔的空腔包围着脚，它膨胀形成一个大鞋底，不仅用于运动，而且还与它们居住的基底表面保持牢固的接触(Gracia C. et al. 2005: 117)(图1)。
{"title":"Chitons (Mollusca: Polyplacophora) from the Venezuelan Coasts, Southern Caribbean: A Checklist and Brief Review in Advance of Their Knowledge","authors":"I. Agudo-Padrón","doi":"10.31038/afs.2021311","DOIUrl":"https://doi.org/10.31038/afs.2021311","url":null,"abstract":"Chitons or polyplacophores constitute a of the eight classes of the filum Mollusca. They are generally small, flattened and elongated animals, provided with eight (8) overlapping dorsal plates or valves, bordered by a belt of scales and/or calcareous spicules formed by the mantle, called perinotum. The cavity of the mantle encloses the foot, which is expands forming a large sole, which not only serves for the locomotion but also to maintain firm contact with the surface of the substrates where they live (Gracia C. et al. 2005: 117) (Figure 1).","PeriodicalId":262559,"journal":{"name":"Aquaculture and Fisheries Studies","volume":"62 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-01-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133567602","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
L. Hernández, H. Camacho, Adriana Nuñez-Robainas, A. Morales, D. Palenzuela, L. Basabe, Fidel, Herrera, O. Rodrigo, J. Velázquez, Soraya Piloto, M. P. Estrada, R. Martinez
Edwardsiella tarda is one of the most significant bacterial pathogens to fish aquaculture. This Gram-negative, intracellular bacterium is the causal agent of the “edwardsiellosis” which cause generalized septicemia and lesions on internal organs. It has been reported worldwide in economically important fish species, including Japanese eel (Anguilla japonica), red sea bream (Pagrus major), yellowtail (Seriola quinqueradiata), channel catfish (Ictalurus punctatus), turbot (Scophthalmus maximus) and tilapia (Oreochromis sp.) [1,2]. This infection leads to enormous economic losses in cultured seawater and freshwater fish [1].
{"title":"Growth Hormone Secretagogue Peptide-6 Modulates Antimicrobial Activities in Tilapia (Oreochromis sp.) Challenged with Edwardsiella tarda","authors":"L. Hernández, H. Camacho, Adriana Nuñez-Robainas, A. Morales, D. Palenzuela, L. Basabe, Fidel, Herrera, O. Rodrigo, J. Velázquez, Soraya Piloto, M. P. Estrada, R. Martinez","doi":"10.31038/afs.2021354","DOIUrl":"https://doi.org/10.31038/afs.2021354","url":null,"abstract":"Edwardsiella tarda is one of the most significant bacterial pathogens to fish aquaculture. This Gram-negative, intracellular bacterium is the causal agent of the “edwardsiellosis” which cause generalized septicemia and lesions on internal organs. It has been reported worldwide in economically important fish species, including Japanese eel (Anguilla japonica), red sea bream (Pagrus major), yellowtail (Seriola quinqueradiata), channel catfish (Ictalurus punctatus), turbot (Scophthalmus maximus) and tilapia (Oreochromis sp.) [1,2]. This infection leads to enormous economic losses in cultured seawater and freshwater fish [1].","PeriodicalId":262559,"journal":{"name":"Aquaculture and Fisheries Studies","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-01-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131999180","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
find its new use in creating low cost such non-reactive vessels affordable by different groups of gentry and households. Thus, vast spread of ocean and marines can be explored for production and harnessing of coral for creating nonreactive vessels and generating employment and business. New innovative use of marine biology will get to benefiting all gentry and save pressure on earth. This research establishes that earth can sustain in creating still large opportunity for application of various innovative technologies.
{"title":"Sea and Ocean Generated Coral Made Nonreactive Dinner Sets for Creating Feel Good and Wellness","authors":"Yadav, Jaya Yadav","doi":"10.31038/afs.2020224","DOIUrl":"https://doi.org/10.31038/afs.2020224","url":null,"abstract":"find its new use in creating low cost such non-reactive vessels affordable by different groups of gentry and households. Thus, vast spread of ocean and marines can be explored for production and harnessing of coral for creating nonreactive vessels and generating employment and business. New innovative use of marine biology will get to benefiting all gentry and save pressure on earth. This research establishes that earth can sustain in creating still large opportunity for application of various innovative technologies.","PeriodicalId":262559,"journal":{"name":"Aquaculture and Fisheries Studies","volume":"84 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-11-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117259301","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Ben A. Morris, J. Voorhees, Nathan Huysman, E. Krebs, M. E. Barnes
Occupational enrichment is a category of environmental enrichment including exercise [5]. Fish are typically forced to exercise by increasing water velocities [9-11], which has generally been associated with increased fish growth. However, when fish are over-exercised, fatigue and reduced rearing performance can occur [12,13]. Most exercise studies start with relatively larger and older salmonids [2,3,9,14-16]. Beginning an exercise routine at initial feeding has not occurred.
{"title":"Effects of Intermittent Exercise during Initial Rainbow Trout Oncorhynchus mykiss Rearing in Tanks Containing Vertically-Suspended Environmental Enrichment","authors":"Ben A. Morris, J. Voorhees, Nathan Huysman, E. Krebs, M. E. Barnes","doi":"10.31038/afs.2020225","DOIUrl":"https://doi.org/10.31038/afs.2020225","url":null,"abstract":"Occupational enrichment is a category of environmental enrichment including exercise [5]. Fish are typically forced to exercise by increasing water velocities [9-11], which has generally been associated with increased fish growth. However, when fish are over-exercised, fatigue and reduced rearing performance can occur [12,13]. Most exercise studies start with relatively larger and older salmonids [2,3,9,14-16]. Beginning an exercise routine at initial feeding has not occurred.","PeriodicalId":262559,"journal":{"name":"Aquaculture and Fisheries Studies","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120991963","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
E. Petersen, E. Susanti, R. Oktaviani, Clive Jones, A. Diedrich
Significant tropical spiny lobster puerulus settlements have been found in bays around central Indonesia, leading to the development of lobster growout aquaculture starting in 2008. In recent years grow-out farming has all but stopped due to the development in 2013 of the export market for lobster juveniles to Vietnam, as well as the 2015 introduction of a government policy banning capture of small wild-caught lobsters. We compare results of a 2016 recall survey of 96 lobster farming households with 2011 survey data. Before the industry’s demise, lobster grow-out was only marginally profitability due to the lack of low-cost juveniles and inefficient feeding practices. We recommend lifting the government ban on wild capture of small lobster to allow the legal benefit of juvenile exports and to allow the aquaculture industry to regenerate. We suggest that the government could best serve the lobster industry by investing in research into sustainable fishing of the puerulus resource and low-cost formulated lobster diets.
{"title":"Bio-Economics of Tropical Spiny Lobster Farming in Indonesia","authors":"E. Petersen, E. Susanti, R. Oktaviani, Clive Jones, A. Diedrich","doi":"10.31038/afs.2020221","DOIUrl":"https://doi.org/10.31038/afs.2020221","url":null,"abstract":"Significant tropical spiny lobster puerulus settlements have been found in bays around central Indonesia, leading to the development of lobster growout aquaculture starting in 2008. In recent years grow-out farming has all but stopped due to the development in 2013 of the export market for lobster juveniles to Vietnam, as well as the 2015 introduction of a government policy banning capture of small wild-caught lobsters. We compare results of a 2016 recall survey of 96 lobster farming households with 2011 survey data. Before the industry’s demise, lobster grow-out was only marginally profitability due to the lack of low-cost juveniles and inefficient feeding practices. We recommend lifting the government ban on wild capture of small lobster to allow the legal benefit of juvenile exports and to allow the aquaculture industry to regenerate. We suggest that the government could best serve the lobster industry by investing in research into sustainable fishing of the puerulus resource and low-cost formulated lobster diets.","PeriodicalId":262559,"journal":{"name":"Aquaculture and Fisheries Studies","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124973827","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Climate Change and Fisheries: The Case Study of Corsica, an Ideal Reference Station in the Mediterranean Sea","authors":"","doi":"10.31038/afs.2020212","DOIUrl":"https://doi.org/10.31038/afs.2020212","url":null,"abstract":"","PeriodicalId":262559,"journal":{"name":"Aquaculture and Fisheries Studies","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129088754","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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