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  • Environment  (1,190)
  • Chemistry  (946)
  • England  (700)
  • 2025-2025
  • 2020-2022  (2,694)
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  • 1
    Publication Date: 2021-11-05
    Description: La demanda de productos pesqueros en el mercado mundial está aumentando, particularmente en Asia, dada la afluencia y la apreciación de los beneficios que ofrecen estos alimentos para la salud humana. Esto, combinado con el colapso significativo de las producciones provenientes de la pesca de captura, ha traído como consecuencia un desarrollo vertiginoso de la acuicultura. Hoy, la acuicultura mundial es el sector de más rápido crecimiento de la industria alimentaria y representa aproximadamente el 45,6 % del consumo mundial de pescado. Sin embargo, el rápido desarrollo de sistemas semiintensivos, especialmente la acuicultura marina intensiva, ha generado preocupación a nivel mundial por los posibles impactos ambientales, económicos y sociales del uso de estos sistemas. Durante los últimos años se han llevado a cabo significativas investigaciones sobre el desarrollo de sistemas sostenibles de producción de alimentos en agua salada, mediante el uso de sistemas mecánicos como, por ejemplo, los Sistemas de Recirculación Acuícola (RAS) y otros con un enfoque ecosistémico como la Acuicultura Multitrófica Integrada (AMTI). Este trabajo se basa en mostrar las características del desarrollo de los sistemas AMTI y las posibilidades de su aplicación como sistemas de producción amigables con el medio ambiente, que contribuyan a la seguridad alimentaria, orientados a fortalecer la resiliencia de las comunidades pesqueras y acuícolas dando respuesta a los Objetivos de Desarrollo Sostenible de la Agenda 2030.
    Description: The demand for fish products in the world market is increasing, particularly in Asia, given the influx and the appreciation of the benefits that this food offers for human health. This, combined with the significant collapse of production from capture fisheries, has led to the rapid development of aquaculture. Today, global aquaculture is the fastest growing sector of the food industry and accounts for approximately 45,6 % of global fish consumption. However, the rapid development of semi-intensive systems, especially intensive marine aquaculture, has generated worldwide concern about the possible environmental, economic and social impacts of the use of these systems. During the last few years, significant research has been carried out on the development of sustainable saltwater food production systems, using mechanical systems such as Aquaculture Recirculation Systems (ARS) and others with an ecosystem approach such as Integrated Multi-trophic Aquaculture (IMTA). This work is based on showing the characteristics of the development of the IMTA systems and the possibilities of their application as environmentally friendly production systems that contribute to food safety, oriented to strengthen the resilience of fishing and aquaculture communities by responding to the Sustainable Development Objectives of Agenda 2030.
    Description: Published
    Description: Refereed
    Keywords: Acuicultura ; Impacto ; Desarrollo sostenible ; Medio ambiente ; Alimentos ; Aquaculture ; Impact ; Sustainable development ; Environment ; Food
    Repository Name: AquaDocs
    Type: Journal Contribution
    Format: pp.8-20
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  • 2
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    In:  aqdchief@seafdec.org.ph | http://aquaticcommons.org/id/eprint/18588 | 17342 | 2015-11-09 16:11:44 | 18588 | Southeast Asian Fisheries Development Center, Aquaculture Department
    Publication Date: 2021-09-24
    Description: The culture of Penaeus monodon has explicitly defined the need for diet formulations or supplementary feeds that would promote optimum growth and survival of the animal. A total of 28 feed combinations were developed for P. monodon. Fish meal, shrimp head meal, squid head meal, Ascetes spp. rice bran, and soybean cake were used as primary ingredients in these feeds. The commercial vitamin mix No. 22 was added to the dry ingredients. Gelatinized corn starch and wheat flour were used as binders. The pellets were extruded using a portable kitchen grinder with a diameter of 4 mm. The products were either sun-dried for 8 hours or oven-dried overnight at 50 degree C to stabilize moisture at 8-10%. The pellets were then kept in covered glass bottles and stored in the laboratory at room temperature. The cost of the feeds excluding labour were also computed. The pellets were analyzed for protein, fat, carbohydrate, crude fiber, ash, and moisture contents using standard procedures. They were also analyzed for water stability. To test the stability of pellets in water, 2-g samples were placed in plankton nets (mesh #40) and suspended in water for two, and six hours. The undissolved samples were then vacuum-dried and the moisture determined. Cost of the feeds ranged from P1.10 to P2.60 per kg depending on the feed ingredient. Squid and Ascetes spp. were rather expensive for use as basic ingredients. Proximate analysis of dry weight showed percentage protein content ranged from 20-63 g; fat, 8-20 g; carbohydrate (by difference), 11-36 g; ash, 8-28 g; moisture, 6-11 g; and crude fiber, 5 . 13 g. Stability tests showed that after two hours, 35-88% of solids remained intact and after 6 hours, 20-55% of the pellets remained undissolved. When a pellet disintegrates easily, pollution of the water occurs. Chances for the shrimp to feed on the pellet is minimized when the pellet is unstable. Thus, the search for a more compact feed pellet has to be continued.
    Keywords: Aquaculture ; Chemistry ; Feed composition ; Crustacean culture ; Penaeus monodon
    Repository Name: AquaDocs
    Type: article
    Format: application/pdf
    Format: application/pdf
    Format: 29-31
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  • 3
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    Marine Fisheries Research Department, Southeast Asian Fisheries Development Center | Singapore
    In:  http://aquaticcommons.org/id/eprint/26800 | 23782 | 2019-11-12 05:12:12 | 26800 | Southeast Asian Fisheries Development Center, Marine Fisheries Research Department
    Publication Date: 2021-09-24
    Description: Presented in the paper is the standard procedure in the determination of moisture in meat. Specifically, the procedures in the sample preparation, instruments required, and the analytical procedures and calculations for each method.
    Keywords: Chemistry ; Fisheries ; Manuals ; Culture media ; Analysis ; Analytical techniques ; Methodology ; Chemical analysis ; Microbiological analysis ; Fishery products ; Processed fishery products ; Fish inspection ; Fishery industry ; Food additives ; Food technology ; Standards ; Specifications ; Water content
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: A-1.1-A-1.3
    Format: 3
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  • 4
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    Marine Fisheries Research Department, Southeast Asian Fisheries Development Center | Singapore
    In:  http://aquaticcommons.org/id/eprint/26828 | 23782 | 2019-11-19 01:05:17 | 26828 | Southeast Asian Fisheries Development Center, Marine Fisheries Research Department
    Publication Date: 2021-09-24
    Description: The paper provides the methodology in the determination of total lipid content of fresh fish without the destruction of the lipid extract. Information on the apparatus needed is presented. Detailed procedures and calculations in the determination of lipid content are provided.
    Keywords: Chemistry ; Fisheries ; Manuals ; Culture media ; Analysis ; Analytical techniques ; Methodology ; Chemical analysis ; Fishery products ; Food technology ; Standards ; Specifications ; Lipids
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: C-3.1
    Format: 1
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  • 5
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    Marine Fisheries Research Department, Southeast Asian Fisheries Development Center | Singapore
    In:  http://aquaticcommons.org/id/eprint/26831 | 23782 | 2019-11-19 01:00:44 | 26831 | Southeast Asian Fisheries Development Center, Marine Fisheries Research Department
    Publication Date: 2021-09-24
    Description: Acid value is a measure of the extent to which the glyceride in the oil has been hydrolysed by lipase action. The paper provides the methodology in the determination of acid value. The apparatus and reagents needed are presented. Detailed procedures in determination of acid value are provided.
    Keywords: Chemistry ; Fisheries ; Manuals ; Culture media ; Analysis ; Analytical techniques ; Methodology ; Chemical analysis ; Fishery industry ; Food technology ; Standards ; Specifications ; Lipids
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: C-5.1-C-5.2
    Format: 2
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  • 6
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    Marine Fisheries Research Department, Southeast Asian Fisheries Development Center | Singapore
    In:  http://aquaticcommons.org/id/eprint/26834 | 23782 | 2019-11-19 00:50:15 | 26834 | Southeast Asian Fisheries Development Center, Marine Fisheries Research Department
    Publication Date: 2021-09-24
    Description: Peroxide value is the reactive oxygen contents expressed in terms of milliequivalents (meq) of free iodine per kilogram of fat. It is determined by titrating iodine liberated from potassium iodide with sodium thiosulphate solution. The paper provides the methodology in the determination of peroxide value. The apparatus and reagents needed are presented. Detailed procedures and calculations are also provided.
    Keywords: Chemistry ; Fisheries ; Manuals ; Culture media ; Analysis ; Analytical techniques ; Methodology ; Chemical analysis ; Fishery industry ; Food technology ; Standards ; Specifications ; Fish oils ; Oxidation
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: C-7.1-C-7.3
    Format: 3
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  • 7
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    Marine Fisheries Research Department, Southeast Asian Fisheries Development Center | Singapore
    In:  http://aquaticcommons.org/id/eprint/26830 | 23782 | 2019-11-19 01:03:17 | 26830 | Southeast Asian Fisheries Development Center, Marine Fisheries Research Department
    Publication Date: 2021-09-24
    Description: The paper provides the methodology in the determination of phospholipid content of fish. The apparatus and reagents needed are presented. Detailed procedures in determination of phospolipid content are provided.
    Keywords: Chemistry ; Fisheries ; Manuals ; Culture media ; Analysis ; Analytical techniques ; Methodology ; Chemical analysis ; Fishery industry ; Food technology ; Standards ; Specifications ; Lipids
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: C-4.1-C-4.2
    Format: 2
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  • 8
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    Marine Fisheries Research Department, Southeast Asian Fisheries Development Center | Singapore
    In:  http://aquaticcommons.org/id/eprint/26833 | 23782 | 2019-11-19 00:53:06 | 26833 | Southeast Asian Fisheries Development Center, Marine Fisheries Research Department
    Publication Date: 2021-09-24
    Description: Saponification value is the hydrolysis of esters. The paper provides the methodology in determination of saponification value of oil. Instructions on sample preparation and the apparatus and reagents needed are presented. Detailed procedures and calculations are provided.
    Keywords: Chemistry ; Fisheries ; Manuals ; Culture media ; Analysis ; Analytical techniques ; Methodology ; Chemical analysis ; Fishery industry ; Food technology ; Standards ; Specifications ; Fish oils ; Lipids ; Fats
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: C-6.1-C-6.2
    Format: 2
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  • 9
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    Instituto Nacional de Investigación y Desarrollo Pesquero | Mar del Plata
    In:  http://aquaticcommons.org/id/eprint/1714 | 125 | 2016-05-04 15:04:50 | 1714 | Instituto Nacional de Investigación y Desarrollo Pesquero (INIDEP), Mar del Plata, Argentina
    Publication Date: 2021-09-18
    Description: Age and growth of populations of three fish species from sixteen lakes and reservoirs situated in the Patagonian Andean and the Patagonian Plateau Region (Argentina) were studied. They included two native species, the Patagonian smallmouth perch. (Percichthys trucha) and the Patagonian silverside (Patagonina hatcheri) and the introduced rainbow trout (Oncorhynchus mykiss). For the three species backcalculated lenght at age was obtained from scale readings. Von Bertalanffy growth curves were usually adjusted to data. For the three species, faster growth was related with lake productivity. (Document contains 38 pages.)
    Keywords: Limnology ; Environment ; Argentina ; Patagonia ; Perciformes ; Percichthyidae ; Percichthys trucha ; Atheriniformes ; Atherinidae ; Patagonina hatcheri ; Salmoniformes ; Salmonidae ; Oncorhynchus mykiss ; pejerrey patagónico ; perca de boca chica ; trucha arco iris ; freshwater fish ; lakes ; growth ; reservoirs ; scale reading ; longevity ; growth curves ; potential resources ; embalses ; curvas de crecimiento ; peces de agua dulce ; lagos ; longevidad ; recursos potenciales ; lectura de escamas
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
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  • 10
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    In:  icsf@icsf.net | http://aquaticcommons.org/id/eprint/27117 | 25 | 2021-02-14 02:41:47 | 27117 | International Collective in Support of Fishworkers
    Publication Date: 2021-07-26
    Description: If managed sensibly, inland water bodies can go a long way to provide India with a sustainable future and food security for its population. Fish production in India registered a remarkable 16-fold increase during the last six decades to reach 12.59 mn tonnes (MT) in 2017-18, propelling the country to the position of the second-largest fish-producing nation in the world. During this period, the share of inland fish production has increased from 30 per cent to 70 per cent, and the present inland fish production has reached 8.9 MT. More than 14 mn fishers and fish farmers depend on fishing and fish farming for their livelihoods; many times more than that number eke out their living through support and ancillary activities like fish processing, trade and making of fishing craft and gear.
    Keywords: Environment ; Fisheries ; ICSF ; Samudra Report ; small-scale fisheries ; food security ; inland fisheries ; India ; fish farming ; livelihoods
    Repository Name: AquaDocs
    Type: article
    Format: application/pdf
    Format: application/pdf
    Format: 33-37
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