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ScienceShot: Fish Can Yell, Too

first_imgPeople aren’t the only ones who raise their voices at each other; fish can shout, too. After catching some blacktail shiners—little minnows characterized by a big black splotch on their tail fin—fishery biologists placed them in tanks equipped with underwater speakers to see if noisy conditions affect communication. While females of Cyprinella venusta (pictured) don’t make noise, males produce two types of sound: growls and knocks. The growl is similar to a cat’s purr and is made when courting a female, while the knocks are more like popping sounds, typically made when males are fighting or defending their nests from another male. After recording these natural sounds during quiet periods, the researchers played white noise in the tanks. As they raised and lowered the volume of the static, they observed that rather than get closer together and continue on at the same “speaking” level, the blacktail shiner stays put and amps up its own voice to be heard. The study, published this month in Behavioral Ecology, is the first to find that fish will tune up their vocal volume in response to elevated noise. As noise levels around rivers continue to rise with cars thundering across bridges and boats chugging on the water, the researchers suggest more needs to be learned about how fish are responding to louder environments, and whether they’re getting stressed and behaving differently.See more ScienceShots.Sign up for our daily newsletterGet more great content like this delivered right to you!Country *AfghanistanAland IslandsAlbaniaAlgeriaAndorraAngolaAnguillaAntarcticaAntigua and BarbudaArgentinaArmeniaArubaAustraliaAustriaAzerbaijanBahamasBahrainBangladeshBarbadosBelarusBelgiumBelizeBeninBermudaBhutanBolivia, Plurinational State ofBonaire, Sint Eustatius and SabaBosnia and HerzegovinaBotswanaBouvet IslandBrazilBritish Indian Ocean TerritoryBrunei DarussalamBulgariaBurkina FasoBurundiCambodiaCameroonCanadaCape VerdeCayman IslandsCentral African RepublicChadChileChinaChristmas IslandCocos (Keeling) IslandsColombiaComorosCongoCongo, The Democratic Republic of theCook IslandsCosta RicaCote D’IvoireCroatiaCubaCuraçaoCyprusCzech RepublicDenmarkDjiboutiDominicaDominican RepublicEcuadorEgyptEl SalvadorEquatorial GuineaEritreaEstoniaEthiopiaFalkland Islands (Malvinas)Faroe IslandsFijiFinlandFranceFrench GuianaFrench PolynesiaFrench Southern TerritoriesGabonGambiaGeorgiaGermanyGhanaGibraltarGreeceGreenlandGrenadaGuadeloupeGuatemalaGuernseyGuineaGuinea-BissauGuyanaHaitiHeard Island and Mcdonald IslandsHoly See (Vatican City State)HondurasHong KongHungaryIcelandIndiaIndonesiaIran, Islamic Republic ofIraqIrelandIsle of ManIsraelItalyJamaicaJapanJerseyJordanKazakhstanKenyaKiribatiKorea, Democratic People’s Republic ofKorea, Republic ofKuwaitKyrgyzstanLao People’s Democratic RepublicLatviaLebanonLesothoLiberiaLibyan Arab JamahiriyaLiechtensteinLithuaniaLuxembourgMacaoMacedonia, The Former Yugoslav Republic ofMadagascarMalawiMalaysiaMaldivesMaliMaltaMartiniqueMauritaniaMauritiusMayotteMexicoMoldova, Republic ofMonacoMongoliaMontenegroMontserratMoroccoMozambiqueMyanmarNamibiaNauruNepalNetherlandsNew CaledoniaNew ZealandNicaraguaNigerNigeriaNiueNorfolk IslandNorwayOmanPakistanPalestinianPanamaPapua New GuineaParaguayPeruPhilippinesPitcairnPolandPortugalQatarReunionRomaniaRussian FederationRWANDASaint Barthélemy Saint Helena, Ascension and Tristan da CunhaSaint Kitts and NevisSaint LuciaSaint Martin (French part)Saint Pierre and MiquelonSaint Vincent and the GrenadinesSamoaSan MarinoSao Tome and PrincipeSaudi ArabiaSenegalSerbiaSeychellesSierra LeoneSingaporeSint Maarten (Dutch part)SlovakiaSloveniaSolomon IslandsSomaliaSouth AfricaSouth Georgia and the South Sandwich IslandsSouth SudanSpainSri LankaSudanSurinameSvalbard and Jan MayenSwazilandSwedenSwitzerlandSyrian Arab RepublicTaiwanTajikistanTanzania, United Republic ofThailandTimor-LesteTogoTokelauTongaTrinidad and TobagoTunisiaTurkeyTurkmenistanTurks and Caicos IslandsTuvaluUgandaUkraineUnited Arab EmiratesUnited KingdomUnited StatesUruguayUzbekistanVanuatuVenezuela, Bolivarian Republic ofVietnamVirgin Islands, BritishWallis and FutunaWestern SaharaYemenZambiaZimbabweI also wish to receive emails from AAAS/Science and Science advertisers, including information on products, services and special offers which may include but are not limited to news, careers information & upcoming events.Required fields are included by an asterisk(*)last_img read more

US cheap flights carrier JetBlue Airways has launc

first_imgUS cheap flights carrier JetBlue Airways has launched new flights to Baltimore/Washington from Boston’s Logan International Airport.The airline will operate four daily flights to the north-eastern US city, with Boston becoming JetBlue’s 57th destination.Flights to Boston will complement JetBlue’s existing services to the city from Washington Dulles International Airport, which are operated six times a day.Robin Hayes, JetBlue’s executive vice president and chief commercial officer, said that the airline offers more non-stop destinations from Boston than any rival carrier.”We are in the business of giving customers more than the other guys, including a first checked bag, free snacks and drinks, the most legroom in coach and more free live entertainment – all without a fee.”Mr Hayes went on to say that the airline was “in the business of giving back to the communities” it serves.Earlier this month, the airline entered into a codeshare agreement with Lufthansa, allowing the airlines to offer connecting services between their respective route networks.ReturnOne wayMulti-cityFromAdd nearby airports ToAdd nearby airportsDepart14/08/2019Return21/08/2019Cabin Class & Travellers1 adult, EconomyDirect flights onlySearch flights Map RelatedJetBlue launches flights to Long BeachJetBlue launches flights to Long BeachJetBlue increases flights from SFOUS carrier JetBlue Airways is increasing the number of flights to Boston’s Logan International Airport.JetBlue announces intention to expand during 2009American low fares airline JetBlue has announced its intention to increase the number of flights it operates.last_img read more