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  • Aquaculture  (112)
  • 2020-2023
  • 2020-2022  (112)
  • 1950-1954
  • 1
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    Value chain transformation: Taking stock of WorldFish research on value chains and markets (2021)
    WorldFish | Penang, Malaysia
    In:  http://aquaticcommons.org/id/eprint/20949 | 115 | 2016-07-28 09:42:53 | 20949 | WorldFish Center
    Details
    Publication Date: 2021-07-13
    Description: The goal of WorldFish’s research on markets and value chains is to increase the benefits to resource-poor people from fisheries and aquaculture value chains by researching (1) key barriers to resource-poor men, women and other marginalized groups gaining greater benefits from participation in value chains, including barriers related to the availability, affordability and quality of nutrient-rich fish for resource-poor consumers; (2) interventions to overcome those barriers; and (3) mechanisms that are most effective for scaling up of value chain interventions. This paper aims to promote and document learning across WorldFish’s value chain research efforts in Asia and Africa. It has three main objectives: (1) to take stock of WorldFish’s past and ongoing research on value chains; (2) to draw out commonalities and differences between these projects; and (3) to provide a synthesis of some learning that can guide future work.
    Description: CGIAR Research Program on Aquatic Agricultural Systems
    Keywords: Agriculture ; Aquaculture ; Fisheries ; Aquatic Agricultural Systems ; Value chains ; Research
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 54
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  • 2
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    Catching and rearing postlarval cleaner shrimp for the aquarium trade: results from a WorldFish Center project in Solomon Islands (2021)
    In:  http://aquaticcommons.org/id/eprint/9226 | 115 | 2012-11-29 10:27:00 | 9226 | WorldFish Center
    Details
    Publication Date: 2021-07-03
    Description: Between 1999 and 2003, the WorldFish Center in Solomon Islands conducted research into the feasibility of a new fishery based on the capture and culture of postlarval coral reef fish for the live fish trade. The work was carried out in two phases: a research phase from late 1999 to the end of 2002; and a “finetuning” phase in 2003. Most of the species were of value to the marine aquarium trade, with very few live reef food fish recorded. The most valuable ornamentals were the banded cleaner shrimp, Stenopus species. Cleaner shrimp were harvested using crest nets, the method being modified with the addition of a solid, water-retaining cod-end designed to increase survival at capture. Grow-out techniques were improved by rearing the shrimp separately in jars to prevent aggression. The jars were painted black to protect the shrimp from sunlight. An economic model using experimental catch data and farm gate prices indicates that the fishery based on shrimp, supplemented with small numbers of lobster and fish is economically viable. The next step will be setting up a demonstration farm in a village in the Western Province of Solomon Islands.
    Keywords: Aquaculture ; Fisheries ; Aquarium culture ; Juveniles ; Catch culture ; Shrimp fisheries ; Catch/effort ; Solomon I. ; Stenopus
    Repository Name: AquaDocs
    Type: article
    Format: application/pdf
    Format: application/pdf
    Format: 42-48
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  • 3
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    Water budgeting studies on the hatchery and nursery rearing practices for the common carp, Cyprinus carpio (Linnaeus, 1758) (2021)
    In:  http://aquaticcommons.org/id/eprint/19319 | 12051 | 2015-12-24 19:31:20 | 19319 | Indian Fisheries Association
    Details
    Publication Date: 2021-06-25
    Description: Aquaculture systems are an integral element of rural development and therefore should be environment friendly as well as socially and economically designed. From the economic standpoint, one of the major constraints for the development of sustainable aquaculture includes externalities generated by competition in access to a limited resource. This study was conducted as an investigation into the water requirement for the hatchery and nursery production phases of common carp, Cyprinus carpio (Linnaeus, 1758) at the Maharashtra State Fish Seed Farm at Khopoli in Raigad Dist. of Maharashtra during the winter months from November to February. The water budgeting study involves the quantification of water used in every stage of production in hatchery and nursery systems and aimed at becoming a foundation for the minimization of water during production without affecting the yield; thereby conserving water and upholding the theme of sustainable aquaculture. The total water used in a single operation cycle was estimated to be 11,25,040 L [sic]. Out of the total water consumed, 4.74% water was used in the pre-operational management steps, 4.48% was consumed during breeding, 62.72% was consumed in the hatching phase, 21.50% was used for hatchery rearing and 6.56% was consumed during conditioning. In the nursery ponds, the water gain was primarily the regulated inflow coming through the irrigation channel. The total quantum of water used in the nursery rearing was 31,60,800 L [sic]. The initial filling and regulated inflow formed 42.60% and 57.40% respectively of water gain, while evaporation, seepage and discharge contributed 20.71%, 36.46% and 42.82% respectively to the water loss. The total water expended for the entire operation was 1,21,61,120 L [sic]. Water expense occurred to produce a single spawn in the hatchery system was calculated and found to be 0.56 L while the water expended to produce one fry was calculated as 4.86 L. The study fulfills the hydrological equation described by Winter (1981) and Boyd (1985). It also validates the water budget simulation model that can be used for forecasting water requirements for aquaculture ponds (Nath and Bolte, 1998).
    Keywords: Aquaculture ; water budgeting ; hatchery ; nursery rearing ; common carp ; Cyprinus carpio ; Maharashtra ; India
    Repository Name: AquaDocs
    Type: article
    Format: application/pdf
    Format: application/pdf
    Format: 7-17
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  • 4
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    Coral culture and transplantation and restocking of giant clams in the Philippines (2021)
    Aquaculture Department, Southeast Asian Fisheries Development Center | Tigbauan, Iloilo, Philippines
    In:  http://aquaticcommons.org/id/eprint/26202 | 17342 | 2019-02-08 08:28:18 | 26202 | Southeast Asian Fisheries Development Center, Aquaculture Department
    Details
    Publication Date: 2021-07-24
    Description: Recently, the Pew Project (2001 to 2005) of the senior author entitled ‘Coral reef habitat and productivity enhancement through coral transplantation and giant clam restocking’ was implemented with the aim to improve the biodiversity and productivity of stressed coral reef habitats in 10 selected demonstration sites in the Philippines. These were meant to serve as models for other communities. Transplantation of corals and reseeding of giant clams were the approaches. Nubbins or small fragments from nearby large coral colonies and abundant solitary forms were transplanted to the target sites. Care was exercised to avoid or reduce any negative impacts on the natural source communities. Only cultured giant clams were used, specifically the threatened Tridacna gigas at sizes that would ensure their chances of survival in the wild (approximately 20-30 cm shell length). Following deployment, monitoring activities were undertaken, focusing on macro-invertebrates and fish, as well as the assessment of the survival and growth of experimental animals. Liaison work was done with local communities to raise their environmental awareness and to ensure their cooperation. This manuscript draws principally from results of the Pew Project. At present, two other restoration projects supported by the European Union and the Global Environment Facility Coral Reef Targeted Research Project are being implemented at the Bolinao Marine Laboratory of the University of the Philippines Marine Science Institute (UP-MSI) in Pangasinan. These projects are testing the efficiency of floating and standing coral nurseries in growing coral nubbins in addition to transplanting fragments or branches of corals to restore degraded coral reefs.
    Keywords: Aquaculture ; Coral ; Coral farming ; Coral reefs ; Marine aquaculture ; Clam culture ; Bivalve culture ; Transplantation ; Seeding (aquaculture) ; Stocking (organisms) ; Artificial reefs ; Philippines ; Tridacna gigas ; Acropora
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: 39-48
    Format: 10
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  • 5
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    The impact assessment of cage aquaculture on benthic communities along the south eastern Black Sea (2021)
    In:  http://aquaticcommons.org/id/eprint/22720 | 18721 | 2018-05-17 18:36:47 | 22720 | Iranian Fisheries Science Research Institute
    Details
    Publication Date: 2021-07-09
    Description: The present study was conducted to examine the impact of cage aquaculture on benthic communities in coastal areas (depth 25 to 50 m) from fish farming operations located along the southeastern Black Sea (Ordu-Perşembe, Trabzon-Yomra and Rize central). Sampling was conducted seasonally from April 2007 to 2009. Sediment samples were taken using Ekman Grab (box core- 0.04 m2). Temperature, salinity, and water velocity were periodically measured to determine influencing sedimentary organic matter in the sediment, oxygenation, and anoxic conditions. In addition, grain size of sediment, organic carbon content, and distribution of benthic communities were investigated. In order to determine benthic impact of fish farms on the region, Shannon – Wiener diversity index (H’), AMBI (AZTI Marine Biotic Index) and M-AMBI (Multivariate- Marine Biotic Index) indices were used. Results of current study showed that benthic zone ecological quality of stations with number 01, 02, 03, and 04 at Ordu-Perşembefish-farming habitat was found to be very low. In autumn 2008, there were 3 species which belonged to Capitella capitata (844 individuals/m2), Capitella sp. (133 individuals/m2), and Heteromastus filliformis (311 individuals/m2) at OP-01 station. In addition, the impact of Trabzon-Yomra fish-farming activity on benthic communities was low. The degree of exposure for Rize fish-farming area in all seasons was quite low, which was not a significant negative impact.
    Keywords: Aquaculture ; Biology ; Fisheries ; Cage culture ; Benthic organisms ; Ecological quality ; Marine biotis indices ; Biology ; Physiology ; Black Sea ; Turkey
    Repository Name: AquaDocs
    Type: article , TRUE
    Format: application/pdf
    Format: application/pdf
    Format: 719-738
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  • 6
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    Isolation, identification and antimicrobial susceptibility of pathogenic Aeromonas media isolated from diseased Koi carp (Cyprinus carpio koi) (2021)
    In:  http://aquaticcommons.org/id/eprint/22910 | 18721 | 2018-06-06 01:14:41 | 22910 | Iranian Fisheries Science Research Institute
    Details
    Publication Date: 2021-07-11
    Description: Aeromonas infections are the most common bacterial disease of cultured fish in China. In this study, a gram-negative bacillus was isolated from the liver of diseased koi carp (Cyprinus carpio koi), and named strain KC-2. The results of morphological and biochemical tests, as well as phylogenetic analysis derived from 16S rRNA and gyrB sequences indicated that the isolated strain KC-2 was highly identical to the known Aeromonas media ATCC 33907. Experimental infection assays were conducted, and pathogenicity was demonstrated in crucian carp (Carassius auratus) and zebrafish (Danio rerio). Antimicrobial susceptibility testing showed that the strain KC-2 was sensitive to cefalotin, cefixime, cefotaxime, gentamicin, netilmicin, azithromycin and chloramphenicol. This is the first report on the isolation and identification of A. media from diseased, cultured koi fish. The results of the study will provide a scientific reference for prevention of bacterial disease of koi carp and identification of A. media in fish.
    Keywords: Aquaculture ; Biology ; Fisheries ; Koi carp ; Aeromonas media ; Isolation ; Identification ; Antimicrobial susceptibility testing ; Biology ; Physiology ; China
    Repository Name: AquaDocs
    Type: article , TRUE
    Format: application/pdf
    Format: application/pdf
    Format: 760-774
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  • 7
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    Spatio-Temporal Variability of Zooplankton Distribution and Abundance in Manila Bay from 2013-2015 (2021)
    In:  http://aquaticcommons.org/id/eprint/26976 | 25026 | 2020-03-05 00:58:47 | 26976 | National Fisheries Research and Development Institute, Philippines
    Details
    Publication Date: 2021-07-24
    Description: The study characterized the spatiotemporal variations in composition, abundance, and diversity of zooplankton community in Manila Bay. Zooplankton samples were collected every two months within three years from 2013 to 2015. The zooplankton composition of Manila Bay includes 29, 52, and 50 taxa in 2013, 2014, and 2015, respectively belonging to the following major groups: Copepoda, Decapoda, Cladocera, Chordata, Annelida, Mollusca, Chaetognatha, Ciliophora, Foraminifera, Echinodermata, and Chromista. Copepod nauplii consistently dominated the zooplankton community in the bay from 2013 to 2015 followed by Tintinnids, Oithona spp., Euterpina acutifrons, and Paracalanus spp. The highest concentration of zooplankton was specifically observed in the south western side near the mouth of the bay (Station 4) in July 2015. In 2014, the highest recorded zooplankton density was in the month of November in the eastern side (Station 10). In general, relatively high diversities of zooplankton community were recorded in many months in 2015 as compared to 2013 and 2014 although the highest recorded diversity occurred in March 2014. Redundancy Analysis revealed salinity, temperature, dissolved oxygen, chlorophyll a, PO4, SiO, and NO3 to have a strong correlation with the zooplankton abundances and distribution.
    Keywords: Aquaculture ; Ecology ; Fisheries ; Oceanography ; Zooplankton ; Diversity ; Environmental Factors ; Redundancy Analysis
    Repository Name: AquaDocs
    Type: article , TRUE
    Format: application/pdf
    Format: application/pdf
    Format: 94-105
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  • 8
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    Improving coastal livelihoods through sustainable aquaculture practices - a report to the collaborative APEC Grouper Research and Development Network (2021)
    Support to Regional Aquatic Resources Management (STREAM) | Bangkok, Thailand
    In:  http://aquaticcommons.org/id/eprint/2544 | 424 | 2011-09-29 18:51:52 | 2544 | Support to Regional Aquatic Resources Management
    Details
    Publication Date: 2021-06-25
    Description: Wild-harvest fisheries for live reef fish are largely over-exploited or unsustainable because of over-fishing and the widespread use of destructive fishing practices such as blast and cyanide fishing. Sustainable aquaculture – such as that of groupers – is one option for meeting thestrong demand for reef fish, as well as potentially maintaining or improving the livelihoods of coastal communities. This report from a short study by the STREAM Initiative draws on secondary literature, media sources and four diverse case studies from at-risk reef fisheries, to frame a strategy for encouraging sustainable aquaculture as an alternative to destructive fishing practices. It was undertaken as a component of the APEC-funded project Collaborative Grouper Research and Development Network (FWG/01/2001) to better understand how recent technical advances in grouper culture and other complementary work – including that of the Asia-Pacific Marine Finfish Aquaculture Network (APMFAN) hosted by NACA – could better support the livelihoods of poor coastal communities. (PDF contains 49 pages)
    Description: FWG/01/2001
    Description: The STREAM Initiative was hosted at the Network of Aquaculture Centres in Asia-Pacific based in Bangkok (Thailand)
    Keywords: Aquaculture ; Sociology
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 2-49
    Format: 48
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  • 9
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    Perspectives of marine biodiversity studies in Argentina (2021)
    In:  http://aquaticcommons.org/id/eprint/10044 | 4006 | 2015-06-01 17:36:45 | 10044 | Universidad Nacional de Mar del Plata
    Details
    Publication Date: 2021-06-29
    Description: This paper provides an overview of the research being carried out at the moment by a group of Argentinean scientists working on the subjects of marine biodiversity and oceanography. When the idea of the Census of Marine Life (CoML)was proposed following the Symposium held during the IAPSO-IABO conference in Mar del Plata in October 2001,there was a wide response from the marine scientific community. Information about current research projects, as well as plans for future work in the context of the CoML, were then obtained from about 70 scientists (Appendix I) belonging to 12 institutions located along the Argentinean coast (Appendix II, Figure 1). This has been used to illustrate what is currently being pursued in marine biodiversity in Argentina and which subjects are considered as priority for future research in the area. This paper is, thus, not an historical update of the knowledge of marine biodiversity, but it attempts to give an idea of the current situation and what is planned for the future. The development of an extensive database of what is known on marine biodiversity in the region is considered to be a necessity, but it constitutes a complete project on its own; as such it is included in the proposals for future work (see Future Work in this paper). It is emphasised thatthis synthesis is not exhaustive in the content of the topics being studied or in the number of researchers working in marine biodiversity in the country. It is, though, considered to be a representative sample of the knowledge in marine science in Argentina today. This is a starting point for the CoML project in South America and it is hoped that, as it develops, it will be improved by the active participation, advice and experience of many other scientists in the region.
    Keywords: Aquaculture ; Biology ; Ecology ; Environment
    Repository Name: AquaDocs
    Type: article , TRUE
    Format: application/pdf
    Format: application/pdf
    Format: 371-382
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  • 10
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    Uganda aquaculture value chains: strategic planning mission report (2021)
    WorldFish | Penang, Malaysia
    In:  http://aquaticcommons.org/id/eprint/11218 | 115 | 2013-06-14 14:13:17 | 11218 | WorldFish Center
    Details
    Publication Date: 2021-06-29
    Description: This report presents the findings and recommendations of a strategic planning mission to reevaluate the feasibility of WorldFish implementing a fish value chain research program in Uganda under the CGIAR Research Program on Livestock and Fish (L&F). The over-arching goal of L&F is to increase productivity of small-scale livestock and fish systems so as to increase availability and affordability of meat, milk and fish for poor consumers and, in doing so, to reduce poverty through greater participation by the poor along animal source food value chains. This will be achieved by making a small number of carefully selected animal source food value chains function better, for example by identifying and addressing key constraints and opportunities (from production to consumption), improving institutional arrangements and capacities, and supporting the establishment of enabling pro-poor policy and institutional environments.
    Description: CGIAR Research Program 3.7 Livestock & Fish
    Keywords: Aquaculture ; Aquaculture ; Uganda
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 16
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