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Small Cetaceans of Japan: Exploitation and Biology
Published by Productivity Press
This book summarizes and analyzes the biology, ecology, exploitation and management of small cetaceans in Japan. It describes the various types of cetacean fisheries in Japan and their historical development, the life histories and ecologies of the main species involved, and the history and problems of conservation and management. The data show that in some cases the number of small cetaceans harvested exceed sustainable limits and have led to depletion of populations. The book provides a case study of what can go wrong when the needs of industry and conservation collide. The descriptions of life history and ecology are relevant to issues of conservation and management, not just for cetaceans, but for all fisheries around the world.
HISTORY OF JAPANESE CETACEAN FISHERIES Outline of History of Small-Cetacean FisheriesImportance of HistoryIruka vs. Kujira Conservation MeasuresSmall Cetaceans and Related FisheriesRecent Statistics for Small-Cetacean Fisheries Hand-harpoon Fishery for Dolphins and PorpoisesPre-historic OperationsHand-harpoon Fishery for Small Cetaceans (1): before World War IIHand-harpoon Fishery for Small Cetaceans (2): after World War IIExpansion of Dall's Porpoise Fishery toward the 1980sStatistics of the Dall's Porpoise Hand-harpoon FisheryHand-harpoon Fishery off ChoshiHand-harpoon Fishery around TaijiCrossbow Fishery in Nago Drive Fisheries for DolphinsCoasts of Noto Peninsula, Sea of JapanTsushima Islands, Tsushima StraitIki Island, Tsushima StraitGoto Islands, East China SeaNorthern Kyushu and Yamaguchi PrefectureSanriku Coasts, North PacificIzu Peninsula, North PacificOperation TypesDolphin Species Taken by the Izu Fishery Catch Statistics and Magnitude of OperationTaiji, North Pacific History of the Dolphin FisheryCatch StatisticsFishing SeasonTrend in the Dockside PriceNago, Okinawa IslandMiuranishi, Western Shikoku Small-type WhalingOriginOperation Pattern Management of Cetacean Fisheries in JapanFishery ActsRule for Regulation of WhalingRule for Regulation of Mother-ship FisheriesRule for Regulation of Steamship WhalingRule for Regulation of Small-type WhalingRule for Regulation of Specified Offshore FisheriesAlterations of Whaling Regulations and International Relationship after World War IICurrent Regulation of Cetacean FisheriesOther Laws on Conservation of CetaceansAct on Protection of Fishery ResourcesAct for Conservation of Endangered Species of Wild Fauna and FloraCultural Heritage Protection Act Regulation of Fisheries for Dolphins and PorpoisesHistorical Background and Early Government ActionsActions of the Fisheries AgencyMeasures Taken with Regard to Incidental Takes and StrandingsProblems in Management of Incidental MortalityCatch Quotas for Dolphins and Porpoises Moving Toward the End of Commercial WhalingSmall-type WhalingBrief HistoryActions related to the Moratorium on Commercial WhalingLarge-type WhalingBefore World War IIAfter World War IIPelagic WhalingEstablishment, Expansion and ReductionBackground of OverfishingEstablishment of Nihon Kyodo Hogei Restructuring of the Whales Research InstituteThe Institute of Cetacean Research and Scientific Whaling BIOLOGY Finless PorpoiseDescription of the SpeciesScientific Name and Type LocalityDistributionWorldwide DistributionTaxonomy and Geographical VariationDistribution of Finless Porpoises in JapanLocal Populations of Japanese Finless PorpoisesAbundance and Seasonality of DistributionSeasonal MovementsProblems in Estimating AbundanceAbundance of Japanese Finless PorpoisesAbundance Decline in the Inland Sea PopulationBackground of the Abundance DeclineHistory of Protection of Finless Porpoises in JapanLife HistoryParturition SeasonGrowthReproductive CycleSocial StructureSchoolSchool Size Dall's PorpoiseDescriptionTaxonomyPopulation StructurePigmentation PatternOsteology and Body LengthBreeding Areas of Dalli-type Dall's PorpoisesAccumulation of PollutantsParasite LoadDNA and IsozymesPopulation Structure: Summary and Future StudiesLife HistoryAge DeterminationSegregation Viewed from Body Length CompositionNeonatal Body Length and Parturition SeasonMating Season and Gestation PeriodGeographical Variation in Breeding SeasonReproductive CycleFemale Sexual MaturityMale Sexual MaturityLongevity and Age CompositionBody Length and Growth CurveFeeding HabitsFood ConsumptionPreySocial StructureSchool SizeBehavior in Relation to Age and Sex StructureAbundance and TrendsPopulations around Japan (see also Chapter 2)Offshore Populations Striped DolphinDescriptionSea Surface TemperatureGeographical DistributionPopulation Structure in the Western North PacificPopulation and ManagementGeographical Distribution and Population StructureOsteologyBody sizeGeneticsMercury LevelFetal Size and Migration TimingSuggested Population StructureLife HistoryAge DeterminationBody length at BirthBody Length CompositionMean Growth CurveMale Sexual MaturityFemale Sexual MaturityDeclining Age of Females at Sexual MaturitySeasonality of ReproductionSeasonality of Male ReproductionFemale Breeding Cycle and Annual Pregnancy Rate Female Reproductive cycle and AgeHistorical Change in Female Reproductive CycleAge Composition, Sex Ratio and Apparent Mortality RateSchool StructureFood HabitsEffect of Fisheries on the Population Bottlenose DolphinsTaxonomy of the Genus TursiopsIdentification of Bottlenose Dolphins around JapanDistribution of Bottlenose Dolphins around JapanLife HistoryAge DeterminationGestation Period, Fetal Growth and Breeding SeasonSex RatioAge CompositionBody Length FrequencyGrowth CurveMale Sexual MaturitySexual Maturity and Reproductive Cycle of FemalesComparison between the Pacific and the Iki SamplesLife History ParametersBackground of the Change Short-finned Pilot WhaleDescriptionDistinction between the Globicephala spp.Description of Short-finned Pilot WhaleDistribution of Short-fined Pilot WhalesNorthern and Southern Forms off JapanDawn of Japanese CetologyConfusion and ReorganizationMore about Japanese Pilot WhalesFirst Encounter with the Northern FormDistinction between the Two FormsAdaptive Significance of Body SizeTaxonomy of the Two Forms of Short-finned Pilot WhaleLife HistoryViewing Life through CarcassesAge DeterminationGrowthFemale Reproductive ActivitySchool StructureMixed SchoolSchool SizeMales in the SchoolCopulation Partner and PaternityGenetic Relatedness among School MembersSummary of School StructurePost-reproductive FemalesInteraction with Human ActivitiesCatch HistoryAbundance and TrendsProblems in Management Baird's Beaked WhaleDescriptionDistributionOutline of the DistributionRegional Distribution and Population StructureBaird's Beaked Whales along the Pacific Coast of JapanFood HabitsStomach ContentsDiving and FeedingLife HistoryTooth structure and Age DeterminationSexual MaturityFetal Growth and Gestation TimeBody length and AgePhysical MaturityFemale Reproductive CycleSocial StructureSexual Maturity and Tooth EruptionSchool StructureSex RatioWhy Do Males Live Longer?AbundanceHistory of ExploitationType of Whaling OperationCatch StatisticsManipulated Statistics and Management Pacific White-sided DolphinDescriptionPopulations and Their DistributionGrowth and Sexual Dimorphism of the Dorsal FinMaterials and MethodsBody Length Composition and Neonatal LengthBody Length and AgeSexual MaturitySexual Dimorphism of the Dorsal FinDiscussion Closing Chapter : Cetacean Conservation and BiologistsThe Community I Grew up inIndustry and ConservationCetacean Tragedies I have WitnessedStriped Dolphins of the Pacific Coast of JapanSperm Whales in the Western North PacificTo Avoid Future TragediesUnresolved Questions on Cetacean BiologyFactors that Determine Breeding SeasonFunction of Post-reproductive FemalesSocial Sex in CetaceansGreater Male Longevity in Baird's Beaked WhalesMy View on Cetacean ConservationTarget to ConserveElement to ConserveWhy CultureEvidence of Cetacean CultureResponsibility of Cetacean Scientists
Reviewer: Caleb Simmons
Reviewer: Chandar Sundaram