Fasali da mazaunin ƙaho
Kusan kowane kyakkyawan, harsashi mai laushi da aka samo a bakin teku yayi kama harsashin ƙaho... Kodayake akwai adadi mai yawa na mollusks waɗanda suke kama da ƙaho.
Clam mai busa ƙaho
Misali, wannan rapan din (rapana), wanda galibi akan same shi a Bahar Maliya kuma ya saba da duk masu hutu, yayi kama da shi sosai. Kodayake masana suna ba da hankali ga gaskiyar cewa mai busa ƙaho karami a cikin girma, kuma kwasfa mai kwalliya ta fi kyau da tsawo, kuma rapan yana da fadi da fadi. Amma katantan bulo, wanda sananne ne kuma sananne ne a Faransa, wani nau'in ƙaho ne. Gaba ɗaya, akwai nau'ikan ƙaho 80 zuwa 100, bisa ƙididdiga daban-daban.
Masu busa ƙaho (dangin buccinid) kuma suna zaune kusa da Pole ta Kudu, amma galibi a cikin ruwan Arewacin Atlantika: a cikin Baltic, White, Barents, tekuna. Ganawa ƙarar ƙaho kuma a cikin Gabas ta Tsakiya, musamman, a cikin Tekun Okhotsk, inda aka haɓaka kamun kifi a kai.
Bugu da ƙari, manyan nishaɗin Gabas ne waɗanda suka fi girma. Matsakaicin tsayin harsashi na babban ƙaho mollusk shine 8-16 cm, kuma yana iya kai girman girmansa har zuwa 25 cm.
Sashin ciki na harsashin santsi ne, ba tare da girma da hakora ba. Ba sa rayuwa a zurfin gaske, amma a kusa da bakin teku, suna nitsewa zuwa ƙasa har zuwa mita 1000. Wato, wannan dabba mai jinin sanyi ba ta jin tsoron matsakaici da sanyin ruwa, amma yana jin daɗi a cikinsu.
Bari mu ce Kogin Norwegian ya yi musu dumi sosai, a can Karar ƙaho yana zaune ƙananan jama'a, amma bakin tekun Antarctica ya dace sosai.
Mollusk ya samo sunansa ne daga harsashi mai tsayi. Akwai tatsuniya cewa a zamanin da an yi kayan kiɗa na iska daga manyan bawo na masu busa.
Halin da salon rayuwar mai busa ƙaho
Trumpeter - clam teku... Halin masu busa ƙaho, kamar kowane gastropods, yayi kama da phlegmatic. Suna zaune a ƙasan, suna motsawa a hankali. Kafa yana tafiya tare da kasa, yana fitowa murfin shigowa baya, kuma kan yana motsi a kowane lokaci, yana juyawa zuwa inda abin yake na yanzu yana dauke ƙanshin abinci mai yiwuwa.
A cikin kwanciyar hankali, saurin motsi ya kasance 10-15 cm / min, amma yayin lokacin bincike mai aiki don abinci yana iya ƙaruwa har zuwa 25 cm / min. Mollusks sun daɗe suna ɓacewa da giyar da aka haɗa su, don haka masu busa ƙaho suna numfasawa a cikin rami ɗaya - oxygen yana shiga cikin jiki daga ruwan da aka tace.
Ruwa ana tace shi ta wani sashin jiki - siphon, wanda a lokaci guda yana taka rawar gaɓar taɓawa, wanda ke taimakawa mollusk samun wuri tare da yanayin zafin jiki mafi kyau da samun abinci, gami da ƙanshin bazuwar.
Tsarin ciyarwa da motsi hoto hoton ana iya gani daidai. Hakanan siphon ɗin sa yana taimakawa wannan katantanwar teku don guje wa abokan gaba - kifin tauraro, yayin da suke sakin takamaiman sinadarai.
Amma gujewa wani mai farauta, mai busa kaho zai iya fadawa hannun wani: matsakaici ko babban kifi, kaguwa, walrus da sauran dabbobin ruwa. Ko da daskararren harsashi ba zai zama cikas ga walrus ba - kawai ya gnaws da shi kuma ya nika shi tare da jikin mollusk.
Eterarfin Trumpeter
Theanshin waɗannan mollusks ɗin siriri ne ƙwarai, yana jin ganima daga nesa kuma zai yi rarrafe har sai ya isa gare shi. Trumpeter clam yana ciyarwa kayayyakin da suka lalace da gawawwakin dabbobi da suka mutu.
Ita ce mafi wadatar abinci mai sauƙin ƙaho. Amma har yanzu, wannan maƙiyin gaske ne! Zai iya cin plankton, tsutsotsi, ƙaramin kifi, ƙananan ɓawon burodi, echinoderms, kuma har ma yana iya fitar da molluscs bivalve daga bawo.
Sashin kansa yana dauke da wani abu na musgunawa na musamman. Masu busa ƙaho bala'i ne na ainihi ga mulkin mallaka. Mussel ba zai iya tsayayya da wannan mai ci gaba ba. Kuma ga mai busa ƙaho, irin wannan mulkin mallaka dukiya ce ta gaske. A cikin awanni biyu zuwa uku, mai busa ƙaho ɗaya yana cin mushe ɗaya, kuma a cikin kwanaki 10 yana iya tsabtace sahun mulkin mallaka ta fiye da raka'a 100.
Bude bakin abin hurawa yana kusa da siphon kuma yana a ƙarshen doguwar akwati. Gangar tana da na roba sosai, na tafi da gidanka kuma tana bawa mollusk damar goge abinci koda daga saman kwanon nasa ne.
A cikin maƙogwaron mai busa ƙaho, an sanya radula tare da hakora masu ƙarfi, wanda ke gaba da nika abinci. Idan aka nika, ana tsotse abinci a baki. Wani ƙamshi mai ɗanɗano yana wasa ne da mai busa ƙaho - kayan ƙamshi na kamshi tare da kifi da nama suna jan hankulan maƙarƙashiya, kuma dubunnan su sun faɗa cikin tarkon da mutum ya ɗana.
Sake haifuwa da tsawon rayuwar mai busa ƙaho
Masu busa ƙahoni sune dioecious molluscs. Lokacin buɗewa yakan buɗe a farkon lokacin bazara, sannan mata su yi ƙwai a cikin kwantena. Aljihunan kwantena na Oval mai ɗauke da ƙwai 50 zuwa 1000 haɗe da duwatsu, manyan kifin kifin, murjani da sauran abubuwan da ke ƙarƙashin ruwan.
Daga cikin adadin amfrayo, mutane 4 zuwa 6 ne kawai suka rayu, wadanda ke cin kwai makwabta kuma suka kara karfi, suka juye izuwa cikakkun sifofin da aka auna girman milimita 2-3. Don barin kokon, wani saurayi mai zina ya gnaws ta cikin fim ɗinsa ya fito, yana da aan karamin gida.
Abin da ke sa mai busa ƙaho ya zama mai ban sha'awa ga mutane
Baya ga bututun sigina, mutane a zamanin da suna yin ado da fitilu daga ƙaho. Yanzu ana buƙatar kwasfa kamar abubuwan tunawa, amma ba mahimmanci ba.
Gwangwani Trumpeter Clam
Mutane da yawa suna sha'awar wannan ƙaho - abin ci ne ko a'a... Haka ne, abin ci ne. Saboda haka, masu busa ƙaho suna da kyau sosai kamar abin kamun kifi. Nauyin jiki (ƙafa-ƙafa) na babban zubi ya kai gram 25.
Naman ƙaho yana da abinci, mai daɗi, amma mai ƙarancin kalori. Haɓowa daga gare su yana haɓaka duka a Yammacin Turai da Rasha, Japan (a cikin Gabas mai nisa). Lokacin hakar ma'adinai yana farawa a watan Oktoba kuma yana zuwa watan Fabrairu. An dafa masu busa ƙaho, kamar squid, kamar sauran abincin teku, a hanya mai taushi. Hakanan, ana samun kifin kifin a cikin nau'in abincin gwangwani.
Dangane da ƙimar abinci, giram 100 na naman kifin ya ƙunshi gram 17 na tsarkakakken furotin, gram 0.5 na mai, da kuma kusan gram 3 na carbohydrates. Fa'idodi masu amfani na mai busa kaho wannan baya karewa. Adadin abun cikin kalori 24 kcal ne kawai. Ya ƙunshi wasu bitamin, galibi na ƙungiyar B.
