Shark Cook wokhala ndi mutu wamkulu ndi mtundu wocheperapo komanso wophunzitsidwa pang'ono wamtundu wotchedwa shapi wa Cephaloscyllium. Izi nsomba zafotokozedwa posachedwapa, mu 2008. Mtundu wa epithet "cooki" umaperekedwa kwa shark iyi polemekeza katswiri wotchuka wa shark Sid Cook.
Cook Shark yamkuntho yotumphuka ikupezeka kumene kuli Nyanja ya Arafura, pakati pa North Australia ndi gulu la Tanimbar Islands (Malay Archipelago, Indonesia). Pokhala amoyo, sankhani malo okhala ndi masamba pansi pamadzi, miyala kapena nthaka yosakanizika. Nthawi zambiri, asodzi awa adagwidwa ndikuzama kuya kwa 220-300 m.
Mitunduyi ndi ya shaki zazifupi pansi. Kutalika kwakukulu kojambulidwa kwa munthu ndi 29,5 cm.
Maonekedwe amadziwika ndi thupi loyenda kwambiri, m'lifupi mwake lomwe limafikira 10,5-12.2% kutalika, lalifupi, lonse komanso pang'ono kuponderezedwa kuchokera kumtunda ndi mutu. Rostrum yozungulira, yochepa. Mphuno ndi yotakata (mpaka 3,4% ya kutalika kwa thupi), kumbali zam'mphuno pali maovala amphuno aatali omwe samafikira pakamwa. Pakamwa ndiye patali, palibe makutu olemba. Mu nsagwada iliyonse, mano 48-62 atatu okhala ndi mkatikati wapamwamba ndi mano aang'ono ofananira amaikidwa. Mano a nsagwada yapamwamba amawonekera ngakhale ndi pakamwa pa shaki. Maso ndi opindika mozungulira, omwe amakhala pamwamba kwambiri. Ana a maso ali ngatiwongo.
Zipsepse zamtchire ndizochepa, zimakhala ndi malangizo owoneka bwino. Chovala chakunja cha dorsal fin ndi chokulirapo komanso chapamwamba kuposa chaposachedwa. Malangizo a zipsepse zamkati mozungulira azizungulira. Ma anal fin ndi ofanana ndi mawonekedwe a posterior dorsal fin, koma okulirapo pang'ono kuposa iwo. Zipsepse za Pelvic ndizochepa, zimakhala ndi malangizo akuthwa. Amuna, zipsepse za pelvic zimakhala ndi pterygopodia yayitali kwambiri (maliseche).
Maluso a caudal ali ndi lobe yapansi. Kumapeto kwa lobe wapamwamba kuli cholengedwa china chophatikizira chopindika.
Makala a Plactoid ndi osowa pakhungu la shark. Mtundu wamtambo wonyezimira wokhala ndi malo 8 osasiyanapo amtundu wakuda womwe umaphimba kumbuyo ndi mbali ya mbali. Kutsogolo kumaphimba maso onse awiri, kumbuyo kwawo kumakhala mchira wa thupi. Pathupi ndi zipsepse pali timabala tating'ono tosiyanasiyana. Mbali yamkati ya thupi imachita imvi.
Tsoka ilo, zithunzi za shaki sizimapezeka pazidziwitso, chifukwa chake ,jambula ndijambula.
Khalidwe la asodzi awa sichimamveka bwino. Monga shaki zonse za mtundu wa Cephaloscyllium, amatha kulowetsedwa ndi madzi ndikutupa chifukwa chowopsa, kuthinana ndi thupi ndikusaloleza kuti lichotsedwe kunyumba. Kuphatikiza apo, kuwona kwa shaki yotupa kumawopseza adani omwe angakhale nawo.
Izi ndi zinthu zopanda nyama zomwe zimayambitsa kudya, zomwe ndi maziko a chakudya chomwe ndi ochepa kwambiri osapsa - ma crustaceans, maollus, ana a mbola, asodzi ndi nsomba zam'madzi.
Akatswiri otchedwa Cook Shark ndi oikira mazira. Yaikazi imayikira mazira angapo nthawi, imayikidwa mu kapisozi mu mawonekedwe amtundu wa chubu wokhala ndi tinyanga m'makona kuti aphatikizidwe ndi gawo lapansi.
Monga nthumwi zonse za asodzi otulutsa zikuluzikulu, Shark Cook yemwe ndi inflation alibe phindu. Izi nthawi zina nsomba zimatha kukhala m'munsi mwa asodzi pakati pa North Australia ndi Indonesia. Palibe chidziwitso pa kukula ndi kugwidwa kwa kugwira.
Mkhalidwe wamtunduwu wamtunduwu sunatchulidwe (DD) chifukwa cha kusowa kwa chidziwitso pa boma la anthu.
Kwa munthu sizowopsa.
Cook Shark Habitat
Mtundu wa asodzi wocheperako komanso wocheperako, womwe wafotokozedwa mu 2008 yaposachedwa.
Shark Cook yomwe ndi inflation ndi munthu wokhala pansi pa madzi pamtunda waung'ono wa Nyanja ya Arafura, yomwe ili m'dera la Tanimbar Islands (Mala Archipelago, Indonesia) ndi North Australia. Mtunduwu umasinthika kukhala ndi moyo m'malo okhala pansi pamadzi okumbidwa ndi algae kapena osakanizika ndi dothi lapansi, pakuya pafupifupi 220-300 m.
Big Shark Cook (Cephaloscyllium cooki).
Kutanthauzira kwa Shark Yophika
Akatswiri otchedwa Cook Shark amadziwika kuti ndi amodzi mwa mitundu ya akambuku ochepa, chifukwa kutalika kwambiri kwa munthu ndi 29,5 cm.
Matupi awo ndi wandiweyani, mitu yawo ndi yotakata ndipo imapanikizika mpaka pamwamba.
Shark Cook amakhala yekha ku Nyanja ya Arafura (Indonesia) pakuya kwa 220-300 m.
Kutalika kwa mtembowo ndi 10,5-12.2% kutalika. Asodzi a Cook cook otentha amakhala ndi mphuno zosangalatsidwa (pafupifupi 1 cm), mavavu amphuno omwe samafikira pakamwa patali kwambiri amtunduwu. Mano onse ndi atatu-vertex, mu taya iliyonse 48-62. Komanso, patsaya lam'mwamba, mano amawoneka ngakhale ndi pakamwa pa shaki.
Zipsepse zamtchire ndizochepa, zimakhala ndi malangizo. Ndalama yakumapeto yakutali ndizocheperako kuposa momwe zimakhalira kunja. Malangizo a zipsepse za dorsal ndi ozungulira.
Anal ndi posterior dorsal fin ndi ofanana mawonekedwe, koma yoyamba ndi yayikulu pang'ono kuposa yachiwiri. Chosiyanitsa pakati pa chachikazi ndi chachimuna ndicho kukhalapo kwa pterigopodia (maliseche) achifupi kumapazi. Pa caudal fin pali mawonekedwe amkati wamkati wokhala ngati wamkati.
Mtundu wa Cook Shark ndi mawanga 6 amdima kumbuyo ndi 2 mchira.
Khungu la shark silimakonda kuphimbidwa ndi mamba a placoid. Thupi limakhala ndi khungu la bulauni, mawanga amdima akhungu sawoneka bwino m'mbali ndi kumbuyo. Maso onse awiri adakongoletsedwa ndimalo akutsogolo, malo ena awiri amapezeka mchira. Kuphatikiza pa mawanga akulu, pa thupi ndi zipsepere pali timadontho tating'ono ta mtundu wakuda. Mimba ndi imvi.
Zakudya Zophika Shark
Zakudya za Cook Shark wokhala ndi mutu wamkulu zimakhala ndi ma invertebrates ang'onoang'ono am'madzi: ma mollusks, stingrays achinyamata, crustaceans, etc.
Mtundu wa amphaka amphaka umayamba kufotokozedwa koyamba mu nkhani ya CSIRO.
Zosangalatsa Zokhudza Cook Shark
Pakadali pano tikudziwa zochepa kwambiri za asodzi ang'onoting'ono, koma, monga shaki zonse zamtundu wa Cephaloscyllium, amatha kudziteteza podzisefukira pamimba ndikudziikika okha mumphako, zomwe zimalepheretsa adani kuti adzafikire. Kuphatikiza apo, pogwiritsa ntchito njirayi, shaki imalepheretsa zilombo kuti zizichita ngozi.
Monga ma tadpole ena, akhaki a Cook shark amatulutsa pamimba kuti pakhale ngozi.
Monga tafotokozera pamwambapa, tikudziwa zochepa papa amphaka a Cook. Pankhani imeneyi, asayansi sanakhazikitse kukula kwa chiwerengero chawo. Mtunduwu sindiwo phindu la mafakitale ndipo siziwopseza anthu.
Ngati mwapeza cholakwika, chonde sankhani gawo ndikusindikiza Ctrl + Lowani.
Mtundu
Kwa shaki zokhala ndi mitu yayikulu yambiri, imakhala yofiirira. Mimba, monga lamulo, imakhala ndi mawu opepuka, nthawi zina imakhala yotuwa. Achichepere pa mchira ndi kumbuyo ali ndi mawanga amdima owoneka ngati chisamba (zidutswa za 6-7), zomwe zimayamba kutalika chifukwa cha kukalamba.
Dera
Shaki yokhala ndi mitu yayikulu yambiri imadziwika kuti imapezeka kum'mwera chakumadzulo kwa Indian Ocean. Shaki zamtunduwu zimatha kupezeka m'madzi pafupi ndi South Africa ndi Mozambique. Zambiri zokhudzana ndi akatupira am'makutu tambiri zomwe sizinatsimikizidwe ndipo mwina zimagwirizanitsidwa ndi kusokonezeka kwa taxonomic. Asayansi amati anthu ena omwe adachoka pagombe la Vietnam komanso ku Gulf of Aden ndi amtundu wina, womwe ndi asodzi amitu akuluakulu.
Habitat
Zimapezeka m'malo otsetsereka pamwamba, komanso pamashelefu okhala. Pali kusiyanasiyana kwa kuya komwe mungakonde malinga ndi kukula kwa anthu. Shaki zamkati, zazitali 75 cm, zimakhala pamtunda wa 40 mpaka 440, pomwe akuluakulu amakonda madzi akuya kwambiri (kuchokera pa 440 mpaka 600 metres).
Khalidwe
Shaki zokhala ndi mitu yayikulu kwambiri zimakonda kudya usiku. Nsomba zotere zimathawa kwa adani posambira m'ming'alu yopapatiza ndikukhathamiritsa matupi awo mwa iwo, zomwe sizimalola owononga kuti awagwire kapena kuwachotsa kwina kwawo komwe amakhala. Momwemonso, kumeza madzi kapena mpweya, ogwedezeka amutu akulu amatha nthawi yoposa tsiku limodzi kuti atuluke m'madzi ndikukhala ndi moyo.
Kuswana
Zochepa sizodziwika pakubala kwa asodzi awa. Nsomba zowola. Akazi amayikira mazira awiriawiri. Dzira lirilonse limakhala ndi chipolopolo cholimba chotetemera chomwe chimakhala ndi antenna wokulirapo, pomwe dzira limalumikizidwa pansi, algae kapena invertebrates pansi. Kuyika kwa mazira kumachitika pamalo akuya kwambiri (450-600 metres), komwe anthu achikulire nthawi zambiri amakhala.
Ubwino kwa anthu
Asodzi akuluzika akulu sikuimira malonda komanso phindu lina. Amatha kuzunza obatchera akuwedza miseche, koma onse yopanda vuto komanso yopweteketsa anthu nsomba. Khungu la nsomba zazikuluzikulu zotupa limakhala lolimba ndipo limatha kugwiritsidwa ntchito m'moyo watsiku ndi tsiku.
Chitetezo
Amakhulupirira kuti kuwedza sikumapweteketsa kuchuluka kwa asodzi akuluzikulu. Komabe, kuchuluka kochepera, malo ochepa komanso kuchuluka kwa malo asodzi kungayambitse nkhawa mtsogolo. Mu 2004, International Union for Conservation of Nature idapereka mitundu ya mtundu wa "LC" - zomwe zidayambitsa nkhawa. Njira zoteteza ndi kuzindikira kuchuluka kwa anthu sizinapangidwe.