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  • 1
    Online Resource
    Online Resource
    Singapore :Springer Nature Singapore :
    Keywords: Freshwater ecology. ; Marine ecology. ; Animal culture. ; Water. ; Hydrology. ; Sustainability. ; Conservation biology. ; Ecology . ; Freshwater and Marine Ecology. ; Animal Science. ; Water. ; Sustainability. ; Conservation Biology.
    Description / Table of Contents: Chapter 1. Morphology and Taxonomy -- Chapter 2. Population Structure and Speciation -- Chapter 3. Life History -- Chapter 4. Spawning Areas -- Chapter 5. Larval Transport -- Chapter 6. Glass Eel Recruitment -- Chapter 7. Spawning Migration -- Chapter 8. Behavior -- Chapter 9. Nervous Systems and Sense -- Chapter 10. Digestion and Absorption -- Chapter 11. Osmoregulation -- Chapter 12. Reproduction -- Chapter 13. Metamorphosis and Silvering -- Chapter 14. Artificial Maturation -- Chapter 15. Larval Rearing -- Chapter 16. Breeding -- Chapter 17. Disease -- Chapter 18. Fisheries -- Chapter 19. Resources -- Chapter 20. Trading -- Chapter 21. Distribution -- Chapter 22. River Improvement -- Chapter 23. Conservation. .
    Abstract: This book is a compilation of eel research and fish migration studies for more than 40 years showing the research history and recent advances in eel studies. Dr. Katsumi Tsukamoto, the esteemed editor of this book, has been actively involved in eel research as one of the leading scientists in the world for a long time, and he and his team successfully collected the fertilized eggs and spawn-condition adult eels from the wild for the first time in the world. This book compiles the essentials of the scientific findings obtained by the editor and his colleagues and reviews the latest references of eel science. Knowledge and information in the book such as a spawning area survey, research on artificial production of glass eels, the discovery of a new species, etc. will attract the reader’s interest, as these are written based on the authors’ experiences. Readers can obtain a comprehensive understanding of eels from various aspects of eel science including the cultural and socio-economic importance of eels and valuable scientific information using state-of-the-art approaches. The book also endeavors to contribute to the conservation of eel species, some of which have been classified as endangered by the IUCN and to promoting harmonious coexistence between humans and nature.
    Type of Medium: Online Resource
    Pages: VIII, 318 p. 1 illus. , online resource.
    Edition: 1st ed. 2023.
    ISBN: 9789819956920
    Series Statement: Fisheries Science Series,
    DDC: 577.6
    Language: English
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  • 2
    Keywords: fisheries management ; fish biology ; aquaculture ; ecosystems ; climate change and fisheries ; freshwater, coastal and marine environments
    Description / Table of Contents: Plenary Lectures --- Fisheries Management: Status and Challenges / Ichiro Nomura / pp. 1-16 --- Exploring the BOFFFF Hypothesis Using a Model of Southern African Deepwater Hake (Merluccius paradoxus) / John G. Field, Coleen L. Moloney, Louis du Buisson, Astrid Jarre, Tore Stroemme, Marek R. Lipinski and Paulus Kainge / pp. 17-26 --- Effects of Fishing on Inter and Intra Stock Diversity of Marine Resources / Gudrun Marteinsdóttir and Heidi Pardoe / pp. 27-43 --- Knowledge on How To Achieve Sustainable Fisheries / Ray Hilborn / pp. 45-56 --- The Role of Docosahexaenoic and Arachidonic Acids as Determinants of Evolution and Hominid Brain Development / Michael A. Crawford, C. Leigh Broadhurst, Claudio Galli, Kebreab Ghebremeskel, Holm Holmsen, Letten F. Saugstad, Walter F. Schmidt, Andrew J. Sinclair and Stephen C. Cunnane / pp. 57-76 --- Genomics and the Genome Duplication in Salmonids / Ben F. Koop and William S. Davidson / pp. 77-86 --- A Tale of Two Initiatives: Integrated Coastal Management in Xiamen and Batangas Bay Region / Thia-Eng Chua / pp. 87-102 --- Keynote 1: Fisheries and Fish Biology --- Age-validated Longevity of Fishes: Its Importance for Sustainable Fisheries / Gregor M. Cailliet and Allen H. Andrews / pp. 103-120 --- Monitoring Prey Availability via Data Loggers Deployed on Seabirds: Advances and Present Limitations / C. A. Bost, A. Jaeger, W. Huin, P. Koubbi, L. G. Halsey, H. Hanuise and Y. Handrich / pp. 121-137 --- Refocusing Stock Assessment in Support of Policy Evaluation / André E. Punt / pp. 139-152 --- Hatchery Stocking for Restoring Wild Populations: A Genetic Evaluation of the Reproductive Success of Hatchery Fish vs. Wild Fish / Hitoshi Araki / pp. 153-167 --- A Review of Bycatch and Discard Issue Toward Solution / Tatsuro Matsuoka / pp. 169-180 --- Keynote 2: Aquaculture --- Environmental Impact of Aquaculture on Coastal Planktonic Ecosystems / Yngvar Olsen and Lasse Mork Olsen / pp. 181-196 --- Meeting the Future Demand for Aquatic Food through Aquaculture: the Role of Aquatic Animal Health / Melba G. Bondad-Reantaso and Rohana P. Subasinghe / pp. 197-207 --- Keynote 3: Biotechnology --- Spermatogonial Transplantation in Fish: Production of Trout Offspring from Salmon Parents / Tomoyuki Okutsu, Yutaka Takeuchi and Goro Yoshizaki / pp. 209-219 --- Biotechnology of Marine Invertebrates-Recent Advances in Shrimp and Shellfish / Anchalee Tassanakajon, Tipachai Vatanavicharn, Premruethai Supungul, Sureerat Tang, Piti Amparyup, Kunlaya Somboonwiwat, Sirinit Tharntada, Jun Takahashi and Haruhiko Toyohara / pp. 221-239 --- Molecular Biotechnology of Development and Growth in Fish Muscle / Ian A. Johnston, Daniel J. Macqueen and Shugo Watabe / pp. 241-262 --- Molecular Innate Immunity in Teleost Fish: Review and Future Perspectives / Takashi Aoki, Tomokazu Takano, Mudjekeewis D. Santos, Hidehiro Kondo and Ikuo Hirono / pp. 263-276 --- Molecular Interaction between Fish Pathogens and Host Aquatic Animals / Laura L. Brown and Stewart C. Johnson / pp. 277-288 --- Keynote 4: Post Harvest Science and Technology --- Progress on Processing and Utilization of Aquatic Products in China / Xichang Wang, Jingjing Zhang and Jiechun Deng / pp. 289-295 --- Molecular Identification of Species and the Geographic Origin of Seafood / Michiaki Yamashita, Atsushi Namikoshi, Jun Iguchi, Yasuharu Takashima, Mohammed Anwar Hossain, Takeshi Yabu and Yumiko Yamashita / pp. 297-306 --- Keynote 5: Ecosystems—Linking Climate Change and Fisheries— --- Effects of Climate Change on Marine Ecosystems / Chen-Tung Arthur Chen / pp. 307-316 --- Keynote 6: Freshwater, Coastal and Marine Environments --- Harmful Algal Blooms and Ocean Observing Systems: Needs, Present Status and Future Potential / Donald M. Anderson / pp. 317-334 --- Coastal Artificial Habitats for Fishery and Environmental Management and Scientific Advancement / William Seaman / pp. 335-349 --- “Sato-Umi”—A New Concept for Sustainable Fisheries / Tetsuo Yanagi / pp. 351-358 --- Keynote 7: Biodiversity and Management --- Optimal Fishing Policies That Maximize Sustainable Ecosystem Services / Hiroyuki Matsuda, Mitsutaku Makino and Koji Kotani / pp. 359-369 --- Ecosystem-Based Sustainable Conservation and Management of Pacific Salmon / Masahide Kaeriyama / pp. 371-380 --- Some Lessons from Implementing Management Procedures / Douglas S. Butterworth / pp. 381-397 --- Keynote 8: Economics and Social Science --- Reconsidering the Contribution of Fisheries to Society and Millennium Development Goals / Kenneth Ruddle / pp. 399-411 --- Advantages and Disadvantages of the Fisheries Trade / Yoshiaki Matsuda / pp. 413-423 --- Keynote 9: Education and International Cooperation --- Japan’s Fisheries Cooperation: Principle, Programs and Achievements / Akihiro Mae / pp. 425-434 --- Institutional Capacity Development for Sustainable Aquaculture and Fisheries: Strategic Partnership with Local Institutions / Renato F. Agbayani and Joebert D. Toledo / pp. 435-448 --- International Cooperation for Higher Education in Aquaculture and Fisheries Science—A European Point of View— / Jean Dhont / pp. 449-460
    Pages: Online-Ressource (XXIV, 470 Seiten)
    ISBN: 9784887041448
    Language: English
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  • 3
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Journal of applied ichthyology 14 (1998), S. 0 
    ISSN: 1439-0426
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology , Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: The composition, stability and biotic factors of social rank in juvenile marine fish schools are demonstrated using juvenile yellowtails, Seriola quinqueradiata (Temminck et Schlegel: Car-angidae). According to the frequency of aggressive behaviour, members within a school were divided into three categories: dominants (10–20% intermediates (10–20%) and subordinates (60–80 %). Social rank was reset with the same hierarchy composition when dominants and intermediates were combined. Observation of individual aggressive behaviour using a video image analysis system revealed that starvation and an increase in fish densities accelerated aggression only in the dominants. In order to determine the durability of social rank, otoliths of dominant fish in eight experimental groups were labelled and the fish returned to their groups; six dominants appeared after one day and three after one week of rearing, indicating that social rank was maintained for at least one week (binomial distribution; P 〈0.05). Total lengths of dominants were larger than those of subordinates after one day of rearing, whereas dominants were smaller after one week. Social rank of this species is decided upon by individual aggressive tendency, but is not beneficial for feeding or growth.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 439 (2006), S. 929-929 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Discoveries of the larvae of the European and American eels, Anguilla anguilla and A. rostrata, in the Sargasso Sea and of the Japanese eel, A. japonica, in the Philippine Sea indicate that these freshwater eels migrate thousands of kilometres into the open ocean to spawn. Here we pinpoint a ...
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    [s.l.] : Macmillan Magazines Ltd.
    Nature 396 (1998), S. 635-636 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The catadromous migration of freshwater eels, in which they migrate from freshwater streams to the sea to spawn, is widely accepted. The proportion of time spent in freshwater and ocean habitats can be determined by studying the ratio of strontium (Sr) and calcium (Ca) in the otoliths ...
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Springer
    Naturwissenschaften 84 (1997), S. 17-21 
    ISSN: 1432-1904
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology , Natural Sciences in General
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 356 (1992), S. 789-791 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] After growing in freshwater habitats, adult eels migrate thousands of kilometres to breed in the ocean. This exceptional migratory pattern, termed diadromy3, plus the economic importance of eels has attracted much research effort towards locating their oceanic breeding site. Small leptocephali ...
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    Springer
    Environmental biology of fishes 56 (1999), S. 231-242 
    ISSN: 1573-5133
    Keywords: social rank ; schooling behaviour ; cannibalism ; otolith
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract We studied ontogenetic changes in social interactions, especially in aggressive behaviour of the migratory marine yellowtail, Seriola quinqueradiata (Carangidae), and compared these to morphological and physiological changes. No agonistic interactions were observed during the larva period until 10 mm in total length (TL), at approximately 20 days after hatching. Typical shivering behaviour with ‘J-posture’ was observed during metamorphosis, when fin rays and calcification of vertebra were completed and there was an increase of tissue thyroid hormone. The onset of aggressive behaviour was just after metamorphosis to the juvenile period, and coincided with a significant increase in tissue cortisol levels. The onset of schooling behaviour was at 12 mm TL, slightly after the onset of aggressive behaviour. From observations of individual aggressive behaviour within juvenile schools, we found three categories of social rank: dominants (10-20%), intermediates (10-20%), and subordinates (60-80%). There was an inverse relationship between social rank and cortisol concentration. Otoliths of dominant fish in 8 experimental groups were labeled and the fish were returned to their groups. Six labeled dominants appeared after 1 day and three after 1 week rearing, respectively, indicating that social rank was maintained for at least 1 week (binomial distribution, p 〈 0.05). Dominants were larger than subordinates after 1 day rearing, whereas dominants were smaller after 1 week rearing. From long-term rearing experiments using individual otolith marking, larvae that showed the ‘J-posture’ more frequently tended to become dominants after metamorphosis, indicating a positive correlation between the ‘J-posture’ and aggressive behaviour. Synthesizing all results from behavioural experiments, we generated a behavioural model for the triggering mechanism of aggressive behaviour and size selection of school members.
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    Springer
    Environmental biology of fishes 56 (1999), S. 243-252 
    ISSN: 1573-5133
    Keywords: schooling behaviour ; docosahexaenoic acid ; behavioural ontogeny ; juveniles ; Pseudocaranx dentex ; Seriola quinqueradiata
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract The ontogeny of schooling behaviour was studied in comparison to the development of sensory and swimming organs and taxis in carangid fish. Striped jack, Pseudocaranx dentex, larvae showed strong phototaxis at 3 days after hatching (3.5 mm in TL) when they developed pigmentation in the retina. Rheotaxis and optokinetic responses were apparent at 4.0-6.0 mm TL as larvae completed development of the basic structure of their eyes. A major inflection of allometric growth occurred at 9 mm, and fin ray formation was completed at these stages. Schooling behaviour, represented by one TL of inter-individual distance and parallel orientation, only appeared at 16 mm TL, and just prior to this behaviour, fish showed mutual attraction through vision at 12 mm TL. Canalization of buccal lateral lines was complete at 18 mm TL, whereas that of trunk lateral lines started at 23 mm TL and was complete at 30 mm TL. With these results, we assumed that critical factors of the ontogeny of schooling behaviour in carangid fish include not only the development of sensory or swimming organs, but also other factors such as development of the central nervous system. To show this, we reared another carangid species, the yellowtail Seriola quinqueradiata, with dietary depletion of DHA (docosahexaenoic acid), which is indispensable for the development of the central nervous system. Although DHA-free fish showed optokinetic response, they did not show schooling behaviour when they attained their schooling size. Tracer experiments using radioisotope labelled DHA showed that DHA is incorporated into the brain, spinal cord, and retina of juvenile fish. Under natural conditions, carangid fish larvae should intake enough DHA through diet to develop schooling behaviour, the fluctuation of dietary quality in zooplankton might therefore influence the development of indispensable antipredatory behaviour. Morphological changes of striped jack occurred in two steps; first at 9-12 mm (fin formation and inflection of allometric growth) and then second at 20-30 mm (scale and lateral line formation), and these changes corresponded with the development of schooling and recruitment to coastal waters, respectively. Since the onset of schooling is the first step of active antipredatory behaviour, we considered that 12 mm TL is the size at which they attain the juvenile period.
    Type of Medium: Electronic Resource
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  • 10
    ISSN: 1573-5117
    Keywords: rotifera ; Brachionus plicatilis ; conditioned medium ; life history parameters
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract We carried out several individual cultures of the rotifer Brachionus plicatilis to determine the effects of conditioned medium on its asexual reproductive characteristics, such as age and body size at first amictic egg production, age at first reproduction, duration of embryonic development, lifespan, intrinsic rate of natural increase, fecundity schedule and lifetime fecundity. Rotifers were precultured at a series of densities ranging from 0 to 50 ind. ml-1 for 0–60 h and 0.45 μm filtrates of these culture media were used as conditioned media. In the conditioned media with higher rotifer densities during preculture, the age at first egg production and first reproduction and duration of embryonic development became shorter than those of the control (fresh medium). Both the age at first egg production and first reproduction negatively correlated with the rotifer densities of the preculture. Animals in conditioned media completed their maturation at smaller body sizes and showed higher intrinsic rates of natural increase (r). They exhibited an earlier fecundity schedule (m x ), but with a lifespan shorter than that of the control animals. Lifetime fecundity (R 0 ) did not differ between animals in the conditioned media and in the control. These results suggest that conditioned media accelerate the life history parameters related to reproduction.
    Type of Medium: Electronic Resource
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