Definition
Ichthyology is the branch of zoology devoted to the study of fish, including bony fish (Osteichthyes), cartilaginous fish (Chondrichthyes), and jawless fish (Agnatha). According to FishBase, 35,800 species of fish had been described as of March 2025.
Related concepts
A Greek–English LexiconAbiogenesisAcanthobrama terraesanctaeAcarologyAchille ValenciennesActinopterygiiAerobiologyAge determination in fishAgnathaAgronomyAgrostologyAlbert C. L. G. GüntherAlbert GüntherAlbert William HerreAlbertus SebaAlexander Emanuel AgassizAlfred Russel WallaceAmbulacrariaAmerican Society of Ichthyologists and HerpetologistsAmphibious fishAmpullae of LorenziniAmsterdamAnatomyAnchovyAncient GreeceAnguilliformityAnimalAnnelidAnthropologyAnthrozoologyAquaculture of catfishAquaculture of salmonidsAquaculture of tilapiaAquatic predationAquatic respirationArachnologyAristotleArteriesArthropodArthropodologyAschelminthesAssociation of Systematics CollectionsAstrobiologyBacteriologyBait ballBait fishBarbel (anatomy)BarbusBarton Warren EvermannBatomorphiBatrachologyBerlinBernard Germain de LacépèdeBillfishBinomial nomenclatureBiochemistryBiogeographyBiogeologyBioinformaticsBiological anthropologyBiological engineeringBiomechanicsBiophysicsBiosemioticsBiostatisticsBiotechnologyBird anatomyBlind fishBloodBlood vesselBotanyBottom feederBranchial archBrazilBreathingBryozoologyBubble nestCaliforniaCapillariesCarcinologyCarl H. EigenmannCarl L. HubbsCarl LinnaeusCarpCat anatomyCavefishCell biologyCellular microbiologyCellular respirationCentre CollegeCetologyCharles Alexandre LesueurCharles DarwinCharles Frédéric GirardCharles Henry GilbertCharles Tate ReganChemical biologyChinaChinese languageChondrichthyesChordateChromatophoreChronobiologyCichlidClasperCleaner fishCleithrumCnidariaCnidariologyCoarse fishingCoastal fishCodCognitive biologyColdwater fishColeopterologyComparative anatomyComparative biologyComputational biologyConchologyConnective tissueConservation biologyConstantine Samuel RafinesqueCoral reef fishCorallivoreCryobiologyCtenophoraCynologyCyprinidCytogeneticsDaniel PaulyDavid Starr JordanDeep-sea fishDemersal fishDendrologyDermal boneDevelopmental biologyDiel vertical migrationDigital Fish LibraryDiversity of fishDog anatomyDorsal finEast IndiesEcological geneticsEcologyEduard RüppellEdward Drinker CopeEdwin Chapin StarksEgg case (Chondrichthyes)Electric fishElectroreception and electrogenesisElephantEmbryologyEmperor AkihitoEncyclopædia Britannica Eleventh EditionEnglish peopleEntomologyEnvironmental impact of fishingEpidemiologyEpigeneticsEpitheliumErik JarvikErik StensiöEthelwynn TrewavasEthnoichthyologyEthnozoologyEthologyEugenie ClarkEuropean RenaissanceEuropean river lampreyEuryhalineEvolution of fishEvolutionary biologyFamily (biology)Fear of fishFelinologyFelipe PoeyFilter feederFin and flipper locomotionFishFishBaseFish anatomyFish as foodFish boneFish developmentFish diseases and parasitesFish farmingFish finFish gillFish intelligenceFish jawFish killFish locomotionFish migrationFish physiologyFish reproductionFish scaleFisheryFishes of the WorldFishingFlatfishFlatwormFlying fishForage fishFrancis Buchanan-HamiltonFrancis DayFrancis WillughbyFrank TalbotFranz SteindachnerFreshwater biologyFreshwater fishGame fishGanoineGas exchangeGenerative biologyGenetically modified fishGeneticsGenomicsGenusGeobiologyGeorg MarcgraveGeorge Albert BoulengerGeorge Brown GoodeGeorge S. MyersGeorges CuvierGerald R. AllenGerontologyGilbert Percy WhitleyGill rakerGill slitGlossary of ichthyologyGlossohyalGreat LakesGroundfishGuillaume RondeletHagfishHallucinogenic fishHans C. BjerringHarvard UniversityHeartHelminthologyHenry Bryant BigelowHenry LiddellHenry Weed FowlerHerbert R. AxelrodHerpetologyHerringHippolito SalvianiHippologyHistoire Naturelle des PoissonsHistologyHistoria PisciumHistory of biologyHistory of zoology (1859–present)History of zoology through 1859HolocephaliHugh McCormick SmithHuman anatomyHuman biologyHuman evolutionHunters and gatherersHydrodynamic receptionHyomandibulaHyperoartiaHypoxia in fishIchthyological Society of Hong KongIchthyology & HerpetologyIchthyology and GISIchthyology termsIchthyoplanktonImmunologyIndiana University (Bloomington)Insect morphologyInsect physiologyIntramembranous ossificationJakob von UexküllJames Leonard Brierley SmithJamming avoidance responseJapanJean-Henri FabreJean CadenatJean René Constant QuoyJohann Gottlob SchneiderJohann Julius WalbaumJohn Ernest RandallJohn James AudubonJohn RayJohn Richardson (naturalist)John Roxborough NormanJohn Treadwell NicholsJoseph Paul GaimardJoseph S. NelsonJournal of Applied IchthyologyJudeo-ChristianJuvenile fishKarl Ernst von BaerKashrutKonrad LorenzLake KinneretLateral lineLeonard CompagnoLepidophagyLepidopterologyLev BergLeydig's organLife history theoryLipidologyList of commercially important fish speciesList of fish by common nameList of fish familiesList of largest fishList of marine biologistsList of smallest fishList of threatened raysList of threatened sharksList of zoologistsLists of aquarium lifeLists of prehistoric fishLouis AgassizLymphMackerelMalacologyMammalMammalogyMarcus Elieser BlochMarine biologyMarine habitatMarine mammalMathematical and theoretical biologyMaurice KottelatMauthner cellMediterraneanMelittologyMeristicsMermaidMichael Barton (professor)MicrobiologyMiltMimbres potteryMineralized tissuesMolecular anatomyMolecular biologyMolluscaMorphology (biology)MouthbrooderMugil cephalusMugilidaeMuscle tissueMycologyMyriapodologyMyrmecologyNatural historyNematologyNeontologyNervous tissueNeuroethologyNeuroscienceNobel Prize in Physiology or MedicineNotable fisheries scientistsNutritional scienceOctopus aquacultureOily fishOperculum (fish)Operculum papillareOphiologyOrder (biology)OrnithologyOrthopterologyOsteichthyesOsteologyOtolithOutline of biologyOutline of zoologyPaedocypris progeneticaPaedophagyPain in fishPaleontologyPaleozoologyPapilla (fish anatomy)ParasitologyParisPathologyPelagic fishPelvic finPerseus ProjectPeter ArtediPeter Simon PallasPharmacistPharmacologyPharyngeal archPharyngeal jawPharyngeal slitPharyngeal teethPhotobiologyPhotophorePhycologyPhylogeneticPhylogeneticsPhysiologyPhysoclistiPhysostomePierre BelonPierre CarbonnierPieter BleekerPlacozoaPlagiuriPlanktologyPliny the ElderPoisonous fishPollockPolyandry in fishPomologyPredatory fishPregnancy in fishPrimatologyProteomicsProtistologyPseudobranchQuantum biologyRainer FroeseRaúl Adolfo RingueletRelational biologyReproductive biologyRespiration (physiology)Respiratory pigmentRespiratory systemRhodes UniversityRobert Scott (philologist)RoboTunaRoeRoot effectRosa Smith EigenmannRough fishRoyal D. SuttkusSaint Lawrence RiverSaint PeterSakana-kunSalmonSalmon runSamuel GarmanSarcopterygiiSardineSardine runSarotherodonSawfishSaxonySchreckstoffScottish peopleSea of GalileeSensory systems in fishSequential hermaphroditismSeth Eugene MeekSharkShark anatomyShark cartilageShark toothShigeho TanakaShoaling and schoolingSleep in fishSociobiologySpatial biologySpawn (biology)Spawning triggerSpencer Fullerton BairdSpider anatomySpiral valveSpongeSpratStan Wood (fossil hunter)Stanford UniversityStructural biologySuckermouthSurface wave detection by animalsSwim bladderSwiss peopleSwitzerlandSynthetic biologySystematicsSystems biologyTarleton Hoffman BeanTaxonTaxonomy (biology)TeethTeleostTeleost leptinsTeratologyTestudinologyTeuthologyTheodore Nicholas GillTheologiansTheophrastusThomas SayTimeline of biology and organic chemistryTimeline of zoologyTissue (biology)ToxicologyTradeoffs for locomotion in air and waterTreatiseTropical fishTunaUndulatory locomotionUniversity of UppsalaUpper PaleolithicVascular systemVeinVenomous fishVirologyVirophysicsVision in fishesWalking fishWater vascular systemWeberian apparatusWelfare biologyWhale sharkWhitefish (fisheries term)WikisourceWild fisheriesWilhelm PetersWilliam Kirby (entomologist)William N. EschmeyerWilliam O. AyresWilliam YarrellWorld Conservation UnionXenacoelomorphaXenobiologyZooarchaeologyZoology
45 concepts already in your glossary