Fasali da mazauninsu
Rag-ɗauke sandar teku na daga nau'ikan kifin mai rai-rai, mai wakiltar allura mai kama da allura, ragargaza kamannin allura. Rag picker, me yasa ake kiranta haka wannan 'yar kifin? - da alama tambayar tana da ma'ana, amma fa idan har ba zaka taba ganinta ba - yawan ci gaban da ake samu a jikin dutsen kama yake da kananan raguna masu yawo a cikin ruwa.
Tsawon jiki na baligi zai iya kaiwa cm 35. Akwai masu tsalle-tsalle masu nau'ikan launuka daban-daban na launuka masu launin rawaya, amma koyaushe ayyukan duhu sun zama gama gari ga kowa. Idan ya cancanta, kifin na iya canza launinsa.
Babban bambanci tsakanin wannan nau'in da sauran kogin teku shine bayyanar da baƙon abu. Jiki da kan kifin an lullubeshi da haske mara tsari mara tsari wanda yayi kama da tsiren ruwan teku. Doki yana da ban sha'awa sosai, amma baya buƙatar waɗannan matakai don kyan gani - suna aiki ne don suturtawa.
Don haka, sabili da yanayin jikin mai karɓar ragowar zakaru, kusan mawuyacin abu ne a gani tsakanin manyan algae. Wannan yana taimaka masa ya kasance da rai idan abokan gaba suka kusanto, sannan kuma yana sauƙaƙa sauƙin farautarsa.
Yana da kyau a lura cewa ba a sanya skates a cikin abincin da ake ci na sauran kifaye masu cin nama ba (banda maƙwabta), tunda kusan jikinsu baya ƙunshe da abubuwan gina jiki - salon zama ba ya buƙatar su gina ƙwayar tsoka, kuma, ƙari, a cikin babban mutum kusan 2 ne kasusuwa fiye da sauran kifaye.
Tsarin jikin ragman kwatankwacin sauran kogin teku - bakin yana kama da dogon bututun sirara, ƙaramin kai yana haɗuwa da jiki mai ɗauke da wuya, za a iya bambanta idanu biyu kanana amma masu kyau a kan kai, waɗanda ke motsa kansu ba dayansu ba.
Kuna iya haɗuwa da kifi a cikin ruwan Tekun Indiya, kuna wanke Australia da Tasmania. Mafi yawa ragman yana zaune a cikin murjani a zurfin mita 4 zuwa 20 (mafi sau da yawa sau 30), yana son matsakaiciyar yanayin zafi da algae mai yawa.
Wannan nau'in yana karkashin kariyar gwamnatin Australiya, tunda yana cikin hatsari. Wannan gaskiyar abin bakin cikin shine saboda yawan hayakin masana'antun da ake fitarwa a cikin tekun Indiya, gami da shigar da mutane kai tsaye cikin rayuwar kifi.
Abun takaici, ba shi yiwuwa a tsayayya da kyawun mai tsinke, kuma masu son kewa suna yawan yin balaguron cikin ruwa kawai don kama fishan kifaye don akwatin kifaye na gida, kodayake doka ta hukunta wannan.
Hali da salon rayuwa
Zai yi kama saboda yawan adadin hanyoyin kama-karya, kifi ya kamata ya yi sauri da sauri, duk da haka, yayin aiwatar da motsi, matakan ba sa taka wata rawa.
Shawagi rag-doki kawai tare da taimakon wasu ƙananan abubuwa biyu da ƙarewar dorsal ɗaya. Ana aiwatar da aikin kanta ta hanzari (kimanin sau 10 a sakan daya) ta hanyar karkatar da ƙoshin lafiya, wanda da alama yana ɗaukar kifin zuwa ƙasa. A cikin wannan halin, kuma yana da sauƙi a kuskure shi don ƙaramin algae mai iyo.
Theunƙun yana ci gaba da kasancewa a tsaye, yayin da kumfa ya ratsa dukkan jiki zuwa kai, inda yawancinsa yake. Matsakaicin saurin motsi na baligi shine mita 150 a minti daya, kifin na iya kiyaye shi na dogon lokaci, ta hakan yana shawo kan nesa mai nisa.
Tabbas, wannan saurin bai isa ya rabu da abokan gaba ba, don haka kawai hanyar kariya a cikin akwatin tara kayan karban kaya shine sake kamanni. Har ila yau, abin lura ne cewa skate na iya riƙe cikakken ƙasa don yin ɓuya na dogon lokaci (har zuwa awanni 68), kawai hanyoyinta ne zasu motsa cikin lokaci tare da motsin ruwa, yana inganta ra'ayin cewa alga ce.
Wani fasali na dukkanin ruwan teku shine wutsiyarsu, wanda zasu iya kama algae idan akwai ruwa mai ƙarfi ko hadari, duk da haka, wannan nau'in ba shi da wannan ƙwarewar, saboda haka ana ɗauke masu tsinkewa zuwa bakin ruwa, sakamakon haka suna mutuwa da yawa.
Abinci
Duk da kyawun waje da rauni, mai tsinke rag mafi gaske. A matsayin karamin kifi, doki an tilasta shi neman abinci mai ƙanƙanin girma. A matsayinka na ƙa'ida, rag-picker yana ciyar da ƙananan crustaceans, plankton, da nau'ikan algae.
Bugu da ƙari, yawan abincin da ake ci yau da kullun yana da ban sha'awa ƙwarai - tare da farauta mai nasara, doki na iya haɗiye har zuwa ƙananan ƙananan jatan lande 3000. Abincin da kansa bashi da rikitarwa - skate kawai yana haɗar da abincin, saboda rashin haƙora ko farantin bakin don sanin hakan.
Yayin da abinci ya isa cikin hancin, wani tsari na tacewa yana faruwa, sakamakon haka, ruwan da aka hadiye tare da ganima yana fitowa ta cikin kwazazzabai, kuma abincin kansa kifin ne ke hadiye shi. Ana iya aiwatar da farauta daga nesa - murfin gill yana haifar da tarko, tare da taimakon abin da dutsen zai iya zana ganima daga nisan 4 cm.
Sake haifuwa da tsawon rai
Lokacin saduwa yana farawa a farkon bazara tare da rikitattun raye-raye na abokan haɗin gwiwa na gaba. Kamar sauran nau'ikan skates, namijin rag yana taka muhimmiyar rawa a yayin haihuwa, kuma wannan duk da cewa ba shi da buhun kwai, inda akasari mata kan sanya kwai don yin kwazo da haihuwa.
Mace tana yin kimanin ƙwai ja duhu 120, waɗanda suke a wani wuri na musamman kusa da wutsiyar namiji. Tsarin hadi yana faruwa a wurin kuma kwan suna rayuwa a jikin mahaifin na wasu makonni 4-8, har sai yaran sun bayyana.
Yayin da duk cikin yake, mace da namiji suna nan kusa, lokaci-lokaci suna shirya rawar rawar kwana, wanda a lokacin launin fata na mutanen biyu ya zama mai haske fiye da yadda aka saba.
Da zaran an haifi jariran, nan da nan suka shiga rayuwa mai zaman kanta, aka bar wa kansu, iyayen ba sa shiga wani ɓangare na renon su. Abun takaici, kaso 5 cikin dari na wadannan halittu na ban mamaki kawai suna rayuwa har zuwa girma kuma suna da damar samar da tsara mai zuwa. A karkashin yanayi mai kyau a cikin daji, doki ragman yana rayuwa kimanin shekaru 5.
