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  • 1
    Electronic Resource
    Electronic Resource
    Responsible aquaculture can aid food problems (2000)
    [s.l.] : Macmillan Magazines Ltd.
    Nature 406 (2000), S. 673-673 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Sir If agriculture were to arise today, knowing what we do about its impacts on the natural environment, biodiversity and poverty, it would probably encounter the same mixed reception as aquaculture. R. L. Naylor et al. give an excellent overview of the serious challenges ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/35021300
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Substituent effects in the diastereoselective [4+2] cycloaddition of chiral naphthalene derivatives with singlet oxygen
    Amsterdam : Elsevier
    Tetrahedron Letters 35 (1994), S. 4331-4334 
    Details
    ISSN: 0040-4039
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/S0040-4039(00)73346-6
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Structural organization of the gills in pipefish (Teleostei, Syngnathidae) (1987)
    Springer
    Zoomorphology 107 (1987), S. 161-168 
    Details
    ISSN: 1432-234X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary The morphology and structural features of the gills of the two Western Baltic pipefish Nerophis ophidion and Syngnathus rostellatus were investigated using scanning electron microscopy. The general anatomy of the gills complies with the general pattern in fish. Several adaptations though, show the highly specialized nature of pipefish gills. The filaments are extremely short, few in number and carry only a few lamellae due to the limited space in the branchial cavity. The lamellae have a widely projecting form yet still have a small area in comparison to other fish. Gill irrigation is performed by a specialized pumping mechanism which forces respiratory water through the small but densely packed gill sieve. Although both species live in the same habitat and belong to the same family, differences in gill morphology were found and are related to different lifestyles. S. rostellatus is the more active species and therefore has more filaments per gill arch, more lamellae per filament, wider projecting lamellae and a more extreme utilisation of available space in the gill cavity through a very densely packed gill sieve. N. ophidion has a stationary mode of life and therefore has a less extreme gill anatomy.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00312309
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    Paper (German National Licenses)
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  • 4
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    Responsible aquaculture can aid food problems (2000)
    Springer Nature
    Details
    Publication Date: 2000-08-01
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Published by Springer Nature
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    PAPER CURRENT
  • 5
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    Mass aggregations of the free-living marine nematode Pontonema vulgare (Oncholaimidae) in organically polluted fjords (1987)
    Inter-Research
    Details
    Publication Date: 1987-01-01
    Print ISSN: 0171-8630
    Electronic ISSN: 1616-1599
    Topics: Biology
    Published by Inter-Research
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  • 6
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    Evidence for a scavenging lifestyle in the free-living Nematode Pontonema vulgare (Enoplida, Oncholaimidae) (1988)
    Institut für Meereskunde
    Details
    Publication Date: 2022-06-01
    Description: Following a mass mortality of the demersal fish population in Kiel Fjord due to anoxic water conditions throughout the water column, the occurrence of mass aggregations of the free-living marine nematode Pontonema vulgare on dead fish, jellyfish (Aurelia aurita, Cyanea capillata) and starfish (Asterias rubens), and in weakened mussels (Mytilus edulis) was observed by SCUBA diving and documented through underwater photography as early as two days after the incident occurred. P. vulgare not only survived the anoxic conditions which prevailed for severals days, but also took advantage of these circumstances to prey upon dead or weakened animals on the sediment. These observations confirm previous reports of a possible role of Pontonema vulgare as a scavenger in the form of mass aggregations in areas of acute oxygen depletion and sediments of high organic content. Positive thigmotaxis is assumed to cause aggregations of Pontonema vulgare upon brown sediments and on webs of Beggiatoa spec. in oxic water with no apparent prey as a cause. Their chemoreceptive sense, thigmotactic aggregation behavior, ability to withstand adverse oxygen conditions, and their broad feeding spectrum are responsible for the success of this species in an extreme environment.
    Type: Article , NonPeerReviewed
    Format: text
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    PAPER (OCEANREP)
  • 7
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    Impact of development and dissemination of Integrated Aquaculture-Agriculture (IAA) Technologies in Malawi (2021)
    In:  http://aquaticcommons.org/id/eprint/9158 | 115 | 2012-11-27 15:26:39 | 9158 | WorldFish Center
    Details
    Publication Date: 2021-07-02
    Description: Malawi is a small but densely populated country in Southern Africa. Fish is an important part of the nutrition of Malawians, providing essential protein and micronutrients. However, per capita fish consumption has halved over the ten-year period between 1988 to 1998 due to over-fishing in the lakes and doubling of the population since the 1970s, accompanied by an increase in the price of fish. This has worsened access to food insecurity, especially in rural areas, in a country where an estimated 66 per cent of the population consume less than the minimum daily calorie requirement. This paper presents an ex-post impact assessment of the development and dissemination of smallscale integrated aquaculture-agriculture technologies by The WorldFish Center and its national and international partners over more than 15 years in Malawi. The impact study measures the effects of these outputs on the degree of integrated aquaculture-agriculture (IAA) technology adoption and diffusion, the effects on farm income and health of household members, and the welfare effects of increased fish supply on the Malawian economy.
    Keywords: Aquaculture ; Agropisciculture ; Aquaculture techniques ; Evaluation ; Malawi
    Repository Name: AquaDocs
    Type: article
    Format: application/pdf
    Format: application/pdf
    Format: 28-35
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  • 8
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    Community-based fish culture in seasonal floodplains (2021)
    In:  http://aquaticcommons.org/id/eprint/9159 | 115 | 2012-11-28 07:30:21 | 9159 | WorldFish Center
    Details
    Publication Date: 2021-07-02
    Description: During the rainy season in extensive river floodplains and deltaic lowlands, floods render the land unavailable for crop production for several months each year. These waters are considerably underutilized in terms of managed aquatic productivity. This raises the opportunity to enclose parts of these floodwater areas to produce a crop of specifically stocked aquatic organisms aside from the naturally occurring ‘wild’ species that are traditionally fished and are not affected by the culture activity, resulting in more high-quality, nutrient-dense food production and enhanced farm income for all stakeholders, notably the poor. The WorldFish Center and its national partners recently tested the concurrent rice-fish culture in the shallower flooded areas and the alternating rice-fish culture in the deep-flooded areas of Bangladesh and Viet Nam through a community-based management system. Results indicate that community-based fish culture in rice fields can increase fish production by about 600 kg/ha/year in shallow flooded areas and up to 1.5 t/ha/year in deep-flooded areas, without a reduction in the rice yield or wild fish catch.
    Keywords: Aquaculture ; Flood plains ; Rice field aquaculture ; Bangladesh ; Vietnam
    Repository Name: AquaDocs
    Type: article
    Format: application/pdf
    Format: application/pdf
    Format: 21-27
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  • 9
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    Aquaculture potential of seahorses and pipefishes (2021)
    In:  http://aquaticcommons.org/id/eprint/9444 | 115 | 2012-10-12 05:14:11 | 9444 | WorldFish Center
    Details
    Publication Date: 2021-07-06
    Description: The characteristics, food and feeding, reproduction and breeding of sea horse and pipefishes (Synanthidae) are presented together with the aspects of syngnathid culture.
    Keywords: Aquaculture ; Feeding behaviour ; Reproductive behaviour ; Fish culture ; Aquaculture development ; Syngnathidae
    Repository Name: AquaDocs
    Type: article
    Format: application/pdf
    Format: application/pdf
    Format: 20-21
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  • 10
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    Impact pathway analysis for research planning: the case of aquatic resources research in the WorldFish Center (2021)
    In:  http://aquaticcommons.org/id/eprint/9098 | 115 | 2012-11-26 12:45:59 | 9098 | WorldFish Center
    Details
    Publication Date: 2021-07-02
    Description: In line with its mandate of poverty reduction and sustainable development, the WorldFish Center is orienting its research towards high impact scientific activity. Identifying such activities is the task of prospective impact assessment, in turn based on impact pathway analysis. The paper describes a framework for analyzing benefits from aquatic resources research, the relevant research categories, pathways to impact by category, and indicators along each pathway that can be estimated in order to quantify probable research impact.
    Keywords: Aquaculture ; Fisheries ; Research programmes ; Research ; Impact study ; Resource management
    Repository Name: AquaDocs
    Type: article
    Format: application/pdf
    Format: application/pdf
    Format: 51-55
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