I-Shark Cook enamakhanda amakhulu iyinhlobo engandile futhi engafundiswanga kangako yosokhethi abangena kancane yohlobo lweCephaloscyllium. Le nhlanzi ichazwe muva nje, ngonyaka ka-2008. I-epithet "cooki" yezinhlobo inikezwe lo shark ukuhlonipha isazi soshaka esidumile uSid Cook.

I-Cook Shark ekhuphukayo ngokweqile iyindawo encanyana oLwandle i-Arafura, phakathi kweNyakatho Australia neqembu laseTanimbar Islands (iMalay Archipelago, Indonesia). Ngokuziphilayo, khetha izindawo ezinemifino engaphansi kwamanzi, enamadwala noma enhlabathini enxubile. Esikhathini esiningi, laba shaka babanjwa ekujuleni okungama-220-300 m.

Uhlobo lungelwaboshaka abaphansi abaphansi. Ubude obuqoshwe phansi bomuntu buyi-29,5 cm.

Ukubukeka kubonakaliswa ngumzimba ominyene, ububanzi bawo bufinyelela ku-10.5-12.2% wobude, bufishane, bubanzi futhi buxinwe kancane ukusuka phezulu ngenhloko. URostrum uyindilinga, mfushane. Amakhala abanzi (afinyelela ku-3.4% wobude bomzimba), ezinhlangothini zamakhala kukhona ama-valve omlomo amade angafinyeleli emlonyeni. Umlomo mude, azikho izintambo ze-labial. Emhlathini ngamunye, kubekwa amazinyo amathathu ama-vertex angama-48-62 ane-apex ephakathi nendawo namazinyo amancanyana e-lateral. Amazinyo omhlathi angenhla ayabonakala ngisho nomlomo kashaka ovalekile. Amehlo aqonde ngokugqamile, atholakala phezulu ekhanda. Izinhlamvu zamehlo zishayekile.

Amaphinifa we-pectoral mancane, ngamathiphu abukhali. I-anterior dorsal fin inkulu futhi iphakeme kunalena engasemva. Izeluleko zamaphisi we-dorsal ziyindilinga. I-anal fin ifana ngesimo kwelemali yangaphansi yangaphakathi, kepha inkulu kakhulu kunayo. Amaphinifa wePelvic mancane, enamathiphu abukhali. Emadodeni, ama-pelvic fins ane-pterygopodia ende kakhulu (izitho zangasese).
I-caudal fin ine-lobe ephansi ethuthukisiwe. Esiqeshini se-lobe engenhla kune-notch enobuntu obuthile ekhahlela umuntu okhulelwe.

Izikali zePlactoid azivamile esikhumbeni soshaka. Umbala womzimba onsundu ngotshani obomvu obonisa imibala ephansi engu-8 obukhulu obude obungemuva nenxenye yezinhlangothi. Indawo engaphambili ihlanganisa womabili amehlo, ezingemuva ezimbili zitholakala kumsila womzimba. Emzimbeni nasemafinjini kukhona amachashazi amnyama amnyama. Uhlangothi lomzimba olungaxekile limpunga.
Ngeshwa, izithombe zalo shark azitholakalanga emithonjeni yolwazi, ngakho-ke, nangu umdwebo owenziwe ngencazelo.

Indlela yokuphila yalaba shaka ayiqondakali kahle. Njengabo bonke oshaka bohlobo lweCephaloscyllium, bayakwazi ukupompa amanzi nokuvuvukala uma kwenzeka kuba nengozi, kugoqe umzimba emzimbeni bese kuvimbela ukuthi kukhishwe endaweni yokukhosela. Ngaphezu kwalokho, ukubona koshaka osewugqinse kusabisa izitha ezingaba khona.

Lezi zidla zangaphansi ezingasebenzi, okuyisisekelo sokudla kwazo okungama-invertebrates amancane angaphansi - ama-crustaceans, ama-mollusks, ama-young stingrays, oshaka kanye nezinhlanzi ezi-bony.

Ama-Cook Shark anamakhanda amakhulu abekwa eqandeni. Owesifazane ubeka amaqanda amaningi ngasikhathi, afakwe ekhwapheni ngesimo sohlobo lweflask elinezimpondo emakhoneni ukuze linamathiselwe endaweni engaphansi.

Njengabo bonke abamele oshaka abakhulu abanezihloko ezikhuluphele, i-feline inflation Shark Cook ayinayo intengiso. Lezi zinhlanzi kwesinye isikhathi zigcina zigqoke ezokudoba ezingaphansi kwabadobi phakathi kweNyakatho Australia nasempumalanga ye-Indonesia. Akukho lwazi ngosayizi nokusetshenziswa kwalokhu okubambekayo.
Isimo sokulondolozwa kwezinhlobo zezilwane asichazwanga (DD) ngenxa yokushoda kwemininingwane ngesimo sabantu.

Kumuntu akuyona ingozi.

Cook Shark Habitat

Lolu uhlobo lohlobo loshaka olungandile noluncane, olutholakele ngo-2008 lwakamuva.

IShark Cook ekhuphukayo yindawo ehlala ngaphansi kwamanzi engxenyeni encane yoLwandle i-Arafura, etholakala endaweni eyiTanimbar Islands (iMalay Archipelago, Indonesia) naseNyakatho Australia. Le nhlobo ivumelaniswa nokuphila ezindaweni ezingaphansi kwamanzi okugcwala i-algae noma kuxutshwe nenhlabathi engaphansi, ekujuleni okungaba ngu-220-300 m.

I-Big Shark Cook (i-Cephaloscyllium cooki).

Incazelo ye-Cooke Shark

Ama-Cook Shark anamakhanda amakhulu abhekwa njengenye yezinhlobo zabashaka abaphansi, ngoba ubude obuphezulu bomuntu bungama-29,5 cm.

Imizimba yabo iminyene impela, amakhanda abo abanzi futhi acindezelwe phezulu.

IShark Cook ihlala kuphela oLwandle i-Arafura (Indonesia) ekujuleni okungamamitha angama-22- 300.

Ububanzi besidumbu buyi-10.5-12.2% ubude. Oshaka be-Cookated inflated banamakhalenda abanzi (cishe 1 cm), ama-valve asemakhaleni angafinyeleli kulokho okudala okunomlomo wale nhlobo. Onke amazinyo angama-vertex amathathu, ezingxenyeni ngazinye ezingama-48-62. Ngaphezu kwalokho, emhlathini ongenhla, amazinyo abonakala ngisho nomlomo koshaka uvaliwe.

Amaphiko we-pectoral mancane, enamathiphu akhombe. I-posterior dorsal fin incane kakhulu kuneyangaphandle. Izeluleko zamaphiko we-dorsal ziyindilinga.

I-anal ne-posterior dorsal fin ziyefana ngesimo, kepha eyokuqala inkulu kakhulu kuneyesibili. Isici esahlukanisayo phakathi kowesifazane nowesilisa kuwukuba khona kwe-pterigopodi yesibili ende (izitho zangasese) emithanjeni ye-pelvic. Ecinini le-caudal kukhona umugqa we-porral wezinhlamvu ofana nse nomuntu okhulelweyo.

Umbala wesimo seCook Shark ungamabala ayi-6 amnyama amnyama emhlane no-2 emsileni.

Isikhumba soshaka akuvamile ukuthi simbozwe ngezikali ze-placoid. Umzimba unombala onsundu-onsundu, amabala endabuko amnyama abonakala kahle ezinhlangothini nasemuva. Womabili la mehlo ahlotshiswe ngesici esingaphambili sobuntu, ezinye izindawo ezimbili zitholakala emsileni. Ngaphezu kwezindawo ezinobukhulu obukhulu, emzimbeni nasezinjeni kukhona izidalwa ezincane zombala omnyama. Isisu ngimpunga.

I-Cook Shark Ukudla

Ukudla kwe-Cook Shark enamakhanda amakhulu kuqukethe ama-invertebrates amancane angaphansi kwamanzi: ama-mollusks, ama-stingrays amasha, ama-crustaceans, njll.

Lolu hlobo lweshaka lekati luchazwe okokuqala kumbhalo we-CSIRO.

Iqiniso Elithokozisayo Ngokuphatheka Koshaka

Kuze kube manje, sazi okuncane kakhulu ngalaba shark bezingane, kepha, njengabo bonke oshaka be-Cephaloscyllium, bangakwazi ukuzivikela ngokwengeza ingxenye yesisu nokuzilungiselela nge-crevice, evimbela izitha ukuthi ifinyelele kuyo. Ngaphezu kwalokho, ngale ndlela, ushaka udikibalisa izilwane ezidla ezinye uma kwenzeka kuba nengozi.

Njengamanye ama-tadpoles, oshaka uCheka ushaka wehlisa isisu uma kwenzeka ingozi.

Njengoba kushiwo ngenhla, sazi okuncane mayelana noshaka bekati likaCook. Kulokhu, ososayensi abakaqali usayizi wesibalo sawo. Lolu hlobo alwakhi inani lezimboni futhi alubeki ingozi kubantu.

Uma uthola iphutha, sicela ukhethe ucezu lombhalo bese ucindezela I-Ctrl + Faka.

Umbala

Koshaka abakhulu abaphephukile, umbala omnyama onsundu onsundu uyimpawu. Isisu, njengomthetho, sinephimbo elilula, kwesinye isikhathi elinombala okhilimu. Abantu abasha emsileni nasemhlane banezindawo ezimnyama ezibunjiwe njengobumba (izingcezu ezi-6 - 7), ezibonakala zineminyaka yobudala ukubukeka okufiphele.

Indawo

Ushaka onamakhanda amakhulu okhuphukile uthathwa njengoyingozi olwandle oluya eningizimu-ntshonalanga ye-Indian Ocean. Oshaka balolu hlobo bangatholakala kuphela emanzini aseduze naseNingizimu Afrika naseMozambiki. Imininingwane mayelana nokuvuvuka koshaka abakhulu abanjwe ngaphandle kwaleli banga ayiqinisekisiwe futhi kungenzeka ihlotshaniswe nokudideka kwe-taxonomic. Ososayensi basikisela ukuthi abantu ababanjwe ogwini lwaseVietnam naseGulf of Aden bangolunye uhlobo, kodwa olungafakiwe uphawu lwabasakazi abakhulu.

Habitat

Zitholakala emithambekeni ephezulu yezwekazi, kanye nasemashalofini ezwekazi. Kunokwehlukaniswa kokujula okuncamelayo kuye ngosayizi womuntu ngamunye. Oshaka abangajwayelekile, abangafika ku-75 cm ubude, bahlala ekujuleni kwamamitha angama-40 kuye kwangama-440, kuyilapho abantu abadala bekhetha amanzi ajulile (ukusuka kumamitha angama-440 kuya kwangama-600).

Ukuziphatha

Oshaka abanamakhanda amakhulu abangena kancane bangabazingeli abahamba ebusuku. Lezi zinhlanzi ziphunyuka ezitheni ngokubhukuda ezindaweni ezivulekile futhi zifaka imizimba yazo kuzo, okungavumeli izilwane ezidla ezinye ukuba zibambe noma zizisuse ngokukhululekile ezindaweni zazo zokuhlala. Ngendlela efanayo, ukugwinya amanzi noma umoya, oshaka abakhulu abaphethe ngokweqile bangachitha isikhathi esingaphezu kosuku ukuphuma emanzini futhi basinde.

Ukuzala

Kuncane okwaziwayo ngokuzalaniswa kwalaba shaka. Izinhlanzi ezi-Oviparous. Izinsikazi zibeka amaqanda ngababili. Iqanda ngalinye linogobolondo oluqinile oluvikelayo nge-antenna ende evulekile, lapho iqanda lixhunywe emhlabathini, i-algae noma ama-invertebrates angaphansi. Ukufakwa kweqanda kwenzeka ekujuleni okukhulu (amamitha angama-450-600), lapho kuhlala abantu abadala kuphela.

Izinzuzo kubantu

Oshaka abakhulu abanezimbobo ezivuthiwe abameleli ezentengiso nelinye inani. Bangakwazi ukuhlukumeza ababambisi ngokudambisa izicupho zabo, kodwa bebonke ayinabungozi futhi ayinabungozi kubantu izinhlanzi. Isikhumba soshaka abakhulu abane-inflated ihlala isikhathi eside futhi singasetshenziswa empilweni yansuku zonke.

Isimo sokuphepha

Kukholakala ukuthi ukudoba akulimazi kakhulu inani labasakazi abaphethwe ngamakhulu amakhulu. Kodwa-ke, izinga lokuzala eliphansi, izindawo ezinqunyelwe kanye nokwanda kwezindawo zokudoba kungadala ukukhathazeka esikhathini esizayo. Ngo-2004, i-International Union for Conservation of Nature yabekela izinhlobo zezilwane uhlobo lwe- "LC" - okwenza kwaba nokukhathazeka okuncane. Izinyathelo zokulondolozwa nokukhonjwa kosayizi wabantu azikakhiwa.