• Thupi limakhala lakuthwa, lakuda kapena lakuda bii m'maso mwa kusiyanasiyana ndi mtundu wa imvi.
• Mzere waafupi kapena kuwala wa imvi.
• Khosi loyera ndi m'mimba.
• Crescent dorsal fin yapamwamba.
• Chithunzi chowoneka bwino chokhala ndi imvi kumbuyo kwa dorsal fin.
• Mwachangu komanso mwamphamvu, nthawi zambiri kudumphira m'madzi.
• Nthawi zambiri mumayenda ndi sitima zonyamula maondo.
• Nthawi zambiri amapezeka m'magulu a anthu pafupifupi 30, nthawi zina amapanga magulu a anthu mazana angapo.
• Mukasaka, ng'ombe zosakaniza ndi ma dolphin oyera a Atlantic zimatha kupanga. Nthawi zina limodzi ndi anamgumi akuluakulu.
• Nthawi zina amapanga magulu osakanikirana ndi ma dolphin amvi, komanso amaphatikizanso ndi anamgumi akulu.
mu 2,5-z, 0 m ,? 1.7-2.6 m, n / a 1.1-1.2 m. Ambiri kumbuyo kwake ndi wakuda kapena wakuda bii, koma kumbuyo kwa dorsal fin kuli malo a imvi kapena oyera (osatchulika pang'ono ana) ndi
chingwe choyera kuyambira m'diso mpaka mbali ya anus, mimba yoyera. Mkulu (makamaka mwa abambo) crescent dorsal fin. Mutu wozungulira wokhala ndi duwa lalifupi, nthawi zambiri limakhala lowala kapena loyera.
Kusiyana kwa mitundu yofananira
Dolphin yoyera yoyera ndi nyanja ya Atlantic imasiyanitsidwa ndi kusapezeka kwa malo oyera achisoni ndi rostrum wakuda, komanso mawonekedwe amizere yoyera mbali zake. Tiyenera kukumbukira kuti mtundu wa ma dolphin oyang'ana nkhope yoyera ukhoza kusintha, rostrum yakuda imapezeka mwa anthu ena. Squirrel ndi yaying'ono, yowoneka bwino thupi, lalitali komanso mtundu.
Mitundu yambiri ya ma dolphin mu Nyanja ya Barents. Chiwerengero chonse cha mitunduyi ndi pafupifupi masauzande angapo aanthu.
IUCN - LC, Russia - Gulu 3.
Makhalidwe ndi machitidwe
Amapezeka m'magulu a nyama zisanu ndi ziwiri, nthawi zambiri amasonkhana pamagulu a anthu mazana angapo. Akazi okhala ndi ana amuna amasonkhana m'magulu osiyana. Nthawi zina amapanga ng'ombe zosakanikirana ndi ma dolphin oyera a mbali ya Atlantic. Nthawi zambiri amadumphira m'madzi. Amadyetsa nsomba, crustaceans ndi cephalopods. Nthawi zambiri konzani kusaka kosiyanasiyana m'munsi.
Kukula kumafika zaka zisanu ndi ziwiri mpaka zisanu. Mimba ndi miyezi 11. Chiyembekezo chamoyo, mwachidziwikire, pafupifupi zaka 30 mpaka 40.
Kafukufuku wapano
M'madzi aku Russia osaphunzira. Chachikulu
Kugawa ndi anthu
Zimapezeka mu Nyanja ya Barents. Mwina, nthawi zina amatha kulowa Nyanja Yoyera ndi gawo lakumwera kwa Nyanja ya Baltic. Mumakonda malo osaya kuposa dolphin yoyera-yaku Atlantic.
Usodzi ndi kufunika kwachuma
Ambiri mwa ma dolphin amenewa amachokera kugombe la Greenland ndi Labrador.
Monga zinyama zina zapamadzi za North Atlantic, ma dolphin okhala ndi mbali yoyera amatha kutuluka chifukwa choipitsidwa ndi zitsulo zolemera ndi organochlorines. Kuchuluka kwa nyama zomwe zimafa chifukwa chodzigwira komanso kusodza ndizochepa ndipo sizikuopseza kupulumuka.
Maonekedwe a dolphin wokhala ndi nkhope yoyera
Kutalika kwa thupi la dolphin wamwamuna wokhala ndi nkhope yoyera kuli m'mamita 2.9-3.1, zazikazi - mamita 2.6-2.8. Makulidwe amutu amachokera ku masentimita 42 mpaka 48.
Amapanga zipsepse za pectoral bwino, zomwe nthawi zambiri zimakhala 17-18% ya kutalika konse kwa thupi.
Ndalama za caudal ndizapakatikati kukula, zokumbutsa mawonekedwe ake ngati mwezi wachichepere. Dorsal fin ndimapangidwe apakhonde pofikira, ndikukula kukula mpaka pafupifupi 30 cm ndi mulomo. Mlomo wamtunduwu wa ma dolphin ndiwofupikitsa, suwonetsa zambiri kuposa masentimita 5. Nthawi zambiri umalumikizana ndi mutu wakutsogolo, ndipo umakhala ndi poyimitsa pang'onopang'ono. M'mphepete mwa milomo yapamwamba nthawi zambiri pamakhala kuwala kapena koyera.
Mphepete zake ndi zakuda, ndipo khungu lakuda limatsikira pansi pazipsepse zamakutu. Nthawi zambiri pamakhala mzere wakuda kutambalala kuchokera pansi penipeni mpaka pakona pakamwa, pamwamba pake pomwe pamakhala malo ena owoneka oyera. Mafuta onse amapaka utoto wakuda kapena wakuda, koma nthawi zina pansi pa ziphuphu za patudal ndi pectoral amapaka utoto.
Dolphin wokhala ndi mutu woyera (Lagenorhynchus albirostris).
Pakamwa pa ma dolphin oyang'anira nkhope yoyera mumadzeranso mano akuluakulu, amphamvu ndi 8-10 mm. Mu nsagwada yapamwamba pali awiriawiri a mano otere, chiwerengero chomwecho m'munsi.
Kakhonde ka dolphin wokhala ndi nkhope yoyera
Nyama zokongola izi zimakhala kumpoto kwa Atlantic kuchokera pagombe la France mpaka Nyanja ya Barents. Kumbali inayo, malo achilengedwe amakhala ku Labrador ndi Davis Strait, mpaka ku Massachusetts. Nthawi zambiri kumakhala kufalikira ku Nyanja ya Norway, komanso ku North Sea kudutsa m'mphepete mwa Norway ndi UK. Ziwerengero zazikulu zamtunduwu zidawonedwa ku Varangerfjord, zikufika pamitu zikwi zingapo.
M'nyengo yozizira, anthu onse amasamukira kumadera akum'mwera a mitundu, kufupi ndi kutentha. Imapezeka kulikonse ku Russia m'mphepete mwa Murmansk, komanso kufupi ndi Fins Peninsula. Pakhala pali zochitika zopenyerera dolphin wokhala ndi nkhope yoyera ku Gulf of Riga ndi Finland, koma malo awa a nyama atha kukhala kuti ndi okhawo amene amapezeka. Amakhala m'mphepete mwa gombe la Sweden ku Baltic.
Ponena za utoto, ambiri a thupi la dolphin wokhala ndi nkhope yake imaso imaso kapena yakuda, koma m'mimba ndi mulomo nthawi zambiri zimakhala zoyera, zomwe zimatipatsa dzina.
Mu Davis Strait, zimawoneka pamodzi ndi zibaluni kumapeto kwa chilimwe, pomwe zinsomba za beluga ndi narwhals, zomwe zimakhala zowopsa kwa ma dolphin, zimachoka pamenepo. Komabe, pofika Novembala sangakumanenso kumeneko - asamukira kumwera.
Moyo wazakudya ndi thanzi la ma dolphin oyang'anira nkhope yoyera
Monga mitundu ina yambiri, ma dolphin amenewa ndi nyama zachikhalidwe. Amakhala m'magulu a anthu asanu ndi limodzi, ndipo nthawi zambiri m'magulu awa mumakhala ma banja omwe ali omasuka omwe ubale wawo umakhala wolimba. Ngati pali chakudya chokwanira, ndipo chosavuta kugwira, mitundu yayikulu yazambiri, nthawi zina imakwana ma dolphin akuluakulu. Zakudya zikatha, gululo limagawikanso timagulu tating'ono, ndipo timafalitsa chakudya.
M'nthawi yawo yaulere kuchokera kokasaka, ma cetaceans amakonda kusewera ndi kupusa mozungulira, kuthamangira kuthamanga kwa 30-40 km pa ola limodzi. Nthawi yomweyo, amapanga kulumpha modabwitsa, kuwuluka pamadzi kwa 10-12 m.
Zochepa sizikudziwika za moyo wa dolphin wokhala ndi nkhope yoyera, chifukwa nyama yam'madzi ndiyosowa.
Nthawi zambiri mumayenda ndi zombo chifukwa chofuna kudziwa chidwi. Monga chakudya, ma dolphin amenewa samakhala opanda mphamvu chilichonse: mitundu yonse ya nsomba za benthic, ma mollusks, crustaceans - zonsezi ndi chakudya cha dolphin wokhala ndi nkhope yoyera. Cod, hering, capelin, mackerel, ndi nsomba zina zambiri zidapezeka m'mimba mwa anthu omwe adaphunzira. Amphaka amathanso kudyedwa mosavuta. Nthawi zina, kuti mupatse thupi mavitamini ndi michere, michere yazomera ndi zam'madzi zimapita kuzakudya za dolphin.
Kubala ma dolphin oyera
Nthawi zambiri masewera akukhwima a mtundu uwu wa ma dolphin amapezeka nthawi yotentha kapena koyambirira. Wamphongo amasamalira mkazi ndi kumuthira manyowa. Pakati pa chilimwe chotsatira, dolphin amabadwa, kukula kwake kumayambira 110 mpaka 160. Amalumikizidwa mosaletseka ndi mayi chaka choyamba cha moyo, pambuyo pake amayamba kudya yekha, ndikuyamba kusambira kwaulere. Kalanga, sizotheka kunena mwatsatanetsatane za kubadwa kwa dolphin wokhala ndi nkhope yoyera - adaphunziridwa bwino kwambiri, ndipo mfundo zambiri sizikudziwika kwa asayansi.
Pafupifupi, moyo wa dolphin womwe umakhala munthawi yake ndi zaka 35 mpaka 40, koma ukapolo, nthawi ya moyo imachepetsedwa kwambiri.
Mitundu iyi ya ma dolphin sikulimbikitsidwa kuti ichotsedwe mwachilengedwe, popeza kubereka kuchokera ku ukapolo sikungatheke, zomwe zikutanthauza kuti anthu oterowo amayenera kufa pang'onopang'ono.
Phindu la ultrasound ndi nyama izi pa anthu zatsimikiziridwa. Chifukwa cha izi, komanso kusewera kwawo, nyama zoyamwitsa izi nthawi zina zimagwiritsidwa ntchito m'mapaki amadzi ndi dolphinariums.
Ngati mwapeza cholakwika, chonde sankhani gawo ndikusindikiza Ctrl + Lowani.