Fushin dolphin mai fuskar fari wakili ne na jinsin Dolphin daga tsarin Cetaceans da jinsi Dabbobin Gaban-kai. A cikin ƙaura, a matsayin ƙa'ida, ana kiyaye dabbobi masu launin toka, amma wani lokacin abu ne mai yiwuwa a sami kyawawan fuskoki masu fari waɗanda suka bambanta da halayyar zamantakewar jama'a da ingantacciyar fahimta.
Bayanin dolphin mai fuska fari
Fuskokin dolphins masu launin fari suna da tsarin jiki mai ƙarfi da ƙarfi.... Irin wannan mazaunin ruwa yana da halin zamantakewar jama'a da son sani, gami da ƙawancen motsi da wasa.
Bayyanar
Farin-doki mai fuskar fari shine babban mazaunin ruwa. Matsakaicin tsawon dabba baligi mita uku ne tare da nauyin jiki har zuwa kilogram 350-355. Irin wannan mazaunin ruwa yana da fasali ta ɓangarorin da ɓangaren sama a bayan ƙarshen ƙofar dorsal na launin launin toka-fari. Partasan jikin mutum fari ne mai launi, kuma gefen sama a gaban yankin ƙarewar fatar launin toka ne mai launin toka-toka. Arshen ƙusoshin ƙyallen fata da flippers na fararen dolphin launuka ne baƙi.
Bakin bakin ruwa yawanci fari ne, amma a wasu mutane launin toka ne toka. Fuskokin dolphins masu fuska fari suna da 25-28 ingantattu kuma haƙoran hakora masu ƙarfi ga kowane muƙamuƙi. Wakilan jinsin dabbar dolphin daga tsari na Cetaceans da jinsin Dabbobin da ke da Gajerun kai suna da halin kasancewar kashin baya 92, wanda ya zarce yawan ire-iren wadannan halittu a cikin kowane nau'in daga dangin Delphinidae. Fuskokin dolphins masu fari-fari suna iya iyo, cikin sauri saurin haɓaka har zuwa kilomita 30 / h kuma ruwa lokaci-lokaci zuwa zurfin mita 40-45 har ma da ƙari.
Salon rayuwa, hali
Ana samun kifayen dolphin masu fuska-fari a cikin ruwa mai matsakaicin yanayi, kusa da gabar tekun biyu-biyu ko kuma a garken dabbobin kusa-kusa, waɗanda mutane 10-12 suka wakilta. Wasu lokuta irin waɗannan mazaunan ruwa masu saurin ruwa suna iya haɗuwa cikin manyan garken garken dabbobi, waɗanda suka ƙunshi ɗaruruwan mutane.
Yana da ban sha'awa!Nau'in nau'in dolphin mai Farin fuska yana daga cikin nau'ikan dabbobi masu karancin nazari, kuma a halin yanzu yana da matukar wahala a mazauninsu.
Fuskokin dolphins masu farin fuska galibi suna yin kamfani tare da wasu membobin dangin, gami da whale humpback da whale fin. Coungiyoyin da suka fi girma sune saboda kasancewar adadi mai yawa na ganima a wani wuri. A yankunan da ke cike da wadataccen abinci, dabbobin dolphin masu fuska fari suna iya haɗuwa cikin yankunan mutane dubu ɗaya da rabi.
Yaya tsawon lokacin da dolphins masu launin fari suke rayuwa
Matsakaicin tsawon rayuwar dabbar dolfin fari mai fuska a cikin yanayin yanayi ya kai shekaru arba'in. A cikin bauta, irin wannan mazaunin ruwa yana iya zama ƙasa da ƙasa sosai.
Jima'i dimorphism
Dabbar dolfin mace tana da mahaɗa urogenital guda ɗaya wacce take tafiya daidai da yankin ciki... Shima yana dauke da mafitar dubura. Cikakken citta, wakiltar corpus cavernosum da membrane mai kauri mai haske, yana fitowa ta cikin kayan haɗi mai yalwa wanda yake a gaban gaban mace. Al'aura ta waje irin na dolphin na mata shine labia minora da majora.
Yana da ban sha'awa! Ya kamata a sani cewa maza na fararen dolphin masu fuska, dangane da girman jiki, kamar yadda aka saba, sun fi matan girma sosai.
Abubuwan al'aura na dolphins na maza suna tattare da kasancewar kwayar halittar jikin mutum, wanda ke raba al'aura da kuma fita ta dubura. Dolphins basu da tabin mahaifa, kuma rami na ciki shine wurin da ake yin gwajin. Tare da zafin jiki na 37game daDaga digiri, aikin kwayar halittar maniyyi yana tafiya yadda yakamata, kuma tsarin yanayin zafin jiki mai mahimmanci ga wannan aikin shine 38game daDAGA.
Wurin zama, mazauni
Dabba mai shayarwa tana rayuwa a Arewacin Atlantika daga gabar Faransa zuwa Tekun Barents. Hakanan, mazaunin asalin wannan nau'in dolphins daga tsari na Cetaceans da jinsin Dabbobi masu kai tsaye an iyakancesu ne ga Labrador da ruwan Davis Strait, har zuwa Massachusetts.
Dangane da bayanan masana, wannan mazaunin ruwa yana da yadu sosai a cikin ruwan tekun Norway da cikin ruwan Tekun Arewa, yankuna da suke zaune kusa da gabar Biritaniya da Norway. Maimakon haka an yi rikodin manyan garken fararen dolphin masu fararen fata a cikin Varangerfjord. Yawan mutanen wannan wurin ya kai kawuna dubu da yawa a cikin kowane garken.
A lokacin hunturu, yawan fararen fatar da ke da farar fata sun fi son yin ƙaura zuwa yankunan kudu na kewayon, inda ake lura da yanayi mai dumi da kwanciyar hankali. A cikin Rasha, ana samun irin wannan mai shayarwa a ko'ina cikin gabar Murmansk da kuma kusa da Rybachy Peninsula. Akwai sanannun kararraki na farin kifayen dolphin da ke zaune a Gulfs na Finland da Riga, amma wannan wurin na dabbobi masu shayarwa na iya zama wani nau'in banda. Ana samun mutane da yawa a gefen bakin tekun Sweden a cikin yankin Baltic.
A cikin ruwan Davis Strait, kifayen da ake fuskantar fari-fari sun bayyana a cikin bazara tare da kayan ruwa, bayan da narwhal da beluga whales suka bar yankin, wanda hakan babbar barazana ce ga dabbobi masu shayarwa. Koyaya, zuwa watan Nuwamba, mazaunan cikin ruwa suna ƙoƙarin yin ƙaura da wuri-wuri kusa da kudu, inda canjin yanayi ya kasance mai sauƙi kamar yadda ya kamata.
Farin-fuskancin dabbar dolfin
Fuskokin dolphins masu fararen fata sune masu cin abincin ruwa. Irin waɗannan wakilai na nau'ikan dabbar dolphin daga tsarin Cetaceans da jinsin Dabbobin dolphin masu gajeren kai suna ciyar da akasarin kifaye, da crustaceans da molluscs.
Irin waɗannan manya-manyan mazaunan ruwa suna samun abinci da kansu, don haka abincin dabba ya bambanta.
Dabba mai shayarwa tana cin kodin, herring, capelin da sauran kifi... Dolphins ba su da haɗari ga mutane. Koyaya, akwai sanannun sanannun lokuta lokacin da mazaunan ruwa ke kawo wasu matsaloli ga mutane. Kyakkyawan ɗabi'a mai ban sha'awa da kyawawan dabbobi masu hauka suna son yin wasa da frolic. Yayin wasannin cikin ruwa, dabbobin dolphin suna bin manyan algae.
Yana da ban sha'awa! Bayan cin abinci, an raba kifin dolphin masu fararen fata zuwa ƙananan ƙananan kungiyoyi da yawa, waɗanda ke saurin matsawa zuwa wurare daban-daban.
A lokacin hutu daga neman abinci da hutawa, manyan dabbobi sun fi son yin wauta da hanzarta zuwa kilomita 35-40 a kowace awa, kuma suna yin tsalle-tsalle cikin ruwan. Tabbatacce ne a kimiyance shine fa'idar amfani na duban dan tayi da dolphins ke fitarwa akan mutane. Saboda wasansu, son sani da kuma kyakkyawan yanayinsu, ana amfani da irin waɗannan dabbobi masu shayarwa a wuraren shakatawa na dolphinariums da wuraren shakatawa na ruwa.
Sake haifuwa da zuriya
Lokacin aikin jima'i da haihuwar zuriya yana faduwa ne kawai a cikin watannin rani mai dumi. Matsakaicin lokacin haihuwar mace mai fararen dolphin ya kai kimanin watanni goma sha ɗaya.
Don ɗan lokaci bayan haihuwar dabbar dolphin, matan da ke tare da su suna ƙoƙari su ware kansu daga sauran membobin gidan. Zai ɗauki shekaru bakwai zuwa goma sha biyu don ƙananan dabbobin dolphin su girma, su sami ƙarfi kuma su isa balaga. A duk tsawon wannan lokacin, mace tana koyawa zuriyarta ƙwarewar asali, gami da samun abinci da kula da rayuwarta a cikin mummunan yanayi.
Dabbobi masu ban mamaki da daraja waɗanda ke rayuwa a cikin ruwa suna da wadataccen wadataccen muryar murya, suna da ikon fitar da bushe-bushe da kururuwa, dannawa daban-daban, da kuma wasu nau'ikan muryar. Ba don komai ba ne cewa dukkan dabbobin dolphin, gami da masu fararen gemu, sun shahara da matakin ci gaba. Galibi irin waɗannan dabbobin suna ƙoƙari don taimakawa ba kawai fellowan uwansu 'yan kabilu ba, har ma da mutanen da ke cikin matsala, jirgi ya lalace ko nutsar da su.
Makiya na halitta
Babban tushen hatsari ga fararen dolphins masu fararen fata shine mutane, rayuwar su, da hayakin masana'antu mai cutarwa cikin ruwan teku. Dabba mai fara'a da fara'a ba ta da abokan gaba na zahiri.
Dangane da ƙididdiga, matsakaicin adadin wakilan wannan nau'in ya kai dubu 100. Wasu daga cikin dabbobi masu shayarwa na mutuwa lokacin da aka kamasu cikin ragar kamun kifi, amma mafi munin barazanar ga rayuwar kifayen dolphins masu farin gemu shine gurbatar ruwa da abubuwa masu haɗari na kwayoyin halitta da ƙananan ƙarfe. Hakanan ana iya ɗaukar Anti-poaching a matsayin matakan kariya.
Yana da ban sha'awa!Duk da cewa mai shayarwa ba abun kamun kifi bane kuma a sikeli, a wasu kasashe, ana kama irin waɗannan dabbobi koyaushe don amfanin su a masana'antar abinci.
Dabbobin dolphin da suka tsufa galibi suna fuskantar manyan matsaloli na muƙamuƙi. A matsayinka na mai mulki, tsoffin dabbobi masu shayarwa suna fama da cututtukan da alamomin alveolar, exostoses na kashi da synostoses ke wakilta. Hakanan akwai ƙwayoyin cuta masu nematode waɗanda ke shafar lafiyar jiki gaba ɗaya da kuma ran rai na dabbobin dolphins.
Yawan jama'a da matsayin jinsin
La'akari da yawan manyan dabbobi a duniya, zai yiwu a kammala cewa wakilan wannan nau'in a halin yanzu suna cikin kwanciyar hankali. Farin fatar da ake fuskanta daga littafin Red Book nau'ikan nau'ikan nau'ikan halittu ne da ke buƙatar kariya da matakan kiyayewa.
Hakanan zai zama mai ban sha'awa:
- Orca whale ko dabbar dolfin?
- Killer Whale (Latin Orcinus orca)
- Me yasa sharks suke tsoron dolphins - gaskiya da tatsuniyoyi
- Sharks (lat Selachii)
