Ubumnandi obuthandwayo be-pollock ne-cod. Imayelana nezimfanzi ezinomsila we-angled. I-Alaska pollock igcwele ama-crustaceans angaba ngu-60. I-cod idla cishe ama-shrimp angama-70 ngasikhathi sinye. Kunezinhlobo ezingaphezu kuka-2000 zazo emvelweni, ezihlukaniswe izizukulwane ezingama-250. Uyini umehluko phakathi kwemisila ye-angular, kungani empeleni zithandwa yizinhlanzi?
Incazelo nezici zezimfanzi ezinomsila we-engela
Imfanzi enomsila we-engela yavulwa ngo-1860. Uhlobo lukhonjwa ngezici ezilandelayo:
- I-rostrum ayinameva. Imayelana negobolondo elimboza ikhanda le-crustacean.
- Ingxenye yamaqabunga ingu-1.5 carapace ubude. Lesi sakamuva sisho ipuleti langemuva le-shrimp. Iqabunga libizwa ngokuthi yingxenye yomsila wegobolondo.
- Ubude besigaba sesithupha sesisu siphindwe kabili ububanzi. Isisu isisu semfanzi. Kuyaziwa ukuthi kunezingxenye.
- Umbala opinki onombala onemivimbo ebomvu ngokubomvu eduze kwe-carapace.
- I-caviar encane eluhlaza okwesibhakabhaka.
- Ubude bomzimba bungamasentimitha ayi-7.
- Isisindo esingu-7-9 amagremu.
Usayizi we-Angled Tailed Shrimp futhi ubukhulu bayo buya ngeminyaka yayo. Izinkomba ezijwayelekile zibhekwa njengabantu abavuthiwe ocansini abafinyelele eminyakeni emithathu ubudala. Ubude bomzimba we-crustacean bungamasentimitha angu-4-5 ngonyaka. Kukhona ama-shrimps ayi-10-11 cm. Baneminyaka okungenani emi-4 ubudala. Imfanzi enomsila we-angle iphakela ama-amphipods. Emhlabeni wezesayensi, abizwa ngokuthi ama-amphipods. Banamapheya ayi-6 emilenze. Imfanzi enomsila inemilenze eyi-10 kuphela, okusho ukuthi, ngamabili ama-5.
Kukumaphi amadamu atholakala
Imfanzi enomsila we-engela - enyakathouthanda amanzi apholile. Lezi zinhlobo zibizwa nangokuthi i-Okhotsk, ngoba inani elikhulu labantu ligxile oLwandle lwase-Okhotsk. Kukhona umsila kwezinye izilwandle zoLwandlekazi iPacific, ngokwesibonelo, oLwandle iBering.
Ngaphezu kwengxenye yama-crustaceans ahlala endaweni yeshalofu. Ubuningi bamaqoqo emfanzi buyamangaza. Ngemizuzu engu-15 yokudoba, ungabamba amathani ayi-10 ama-crustaceans. I-trawl yinetha elinjengesikhwama elixhunywe ezintanjeni zensimbi ezidonswa ngemuva komkhumbi.
Ukuthatha isikhala ezilwandle Imfanzi yaseMpumalanga Ekude igxile ekushiseni kwamanzi. Bathanda ukuphola, ama-crustaceans ahlala ezansi. Izinga lokushisa lapho lisukela ku- -1.7 kuye ku- +3.5 degrees.
Kubalulekile ukuthi i-angler neyamanje. Imfene ibutha lapho ibuthaka khona noma emaphethelweni emifudlana enamandla. Kulokhu, ama-crustaceans agxila kokudonswa phansi. I-Angletail ayikhethi usawoti nje kuphela, kodwa namanzi anosawoti acebile. Qaphela ukuthi phakathi kwezinhlobo ezingama-2000 zezimfanzi, kukhona nezamanzi angenasawoti.
Ihlukaniswe njengezinhlobo ezihlukile, umsila we-angler awuhlukanisiwe waba ama-subtypes. Onke ama-crustaceans anezici ezijwayelekile zokuhlonza.
Ukudoba izinhlanzi ezinomsila we-Angled
I-North Angle-tailed Shrimp - ukubukeka okungachazeki. I-TAC isifinyezo sokubanjwa komphakathi. Kukhona "uphahla" lokubamba izinhlobo eziningi. Izilwane ezingafuneki, izinhlanzi, ama-crustaceans angazingelwa nganoma yiluphi uhlobo. Lokhu kukhombisa ubuningi babantu.
I-heroine ye-athikili isakazeke kakhulu kangangokuba inamagama amaningana anikezwe yona ezindaweni ezahlukene zokudoba. Amagama "Okhotsk" futhi "enyakatho" asevele ashiwo. Kukhona nomqondo i-angle-tailed Magadan shrimp... Igama lehlukile, kepha ingqikithi iyafana.
Umsila we-engela ubanjwa ikakhulukazi ebusuku. Ngemuva kuka-9 ntambama, ama-crustaceans agijimela kukholamu lamanzi. Ngo-8-9 ekuseni, imfanzi icwila ezansi. Kunzima ukubamba izilwane lapha. Izimfanzi ezisencane zifuduka ngokuzikhandla. Ukuphakama kokunyakaza kwabantu abakhulu kuncane. AmaCrustaceans aziqondisa ngenkathi ehambisa imisinga.
Ukuhamba mpo kwemihla ngemihla kwemisila ye-angler akuhlelekile. AmaCrustaceans angakwazi ukuma ezansi izinsuku ezimbalwa, bese ekhuphukela phezulu izinsuku ezimbalwa. Ayikho incazelo yesayensi ngale nto okwamanje.
Ukwephuka phansi, izimfanzi ziba sengozini. Iningi labantu lihlaselwa ngqo kukholamu lamanzi, ebusweni balo. Lokhu kufaka phakathi ukukhiqizwa kwezimfanzi ngabantu. Kungani-ke izilwane zigijimela phezulu? Umbuzo uhlala uvulekile.
Umsila we-corny uthathwa njengenhlobo yezentengiselwano ebalulekile ngenxa yokunambitheka nezinzuzo zayo ezifihlwe enyameni ye-crustacean. Umkhiqizo unambitha kangcono kunezimfanzi ezivela ezindaweni ezishisayo ngisho nesihlobo se-heroine ye-athikili - izinhlobo ezisenyakatho. Ngaphezu kwalokho, inyama yomsila wamalahle icebile nge-calcium, iodine, i-zinc, i-potassium, i-Omega-3 acid, i-vitamin E.
Ukuzala kanye nesikhathi sokuphila
Imfanzi enomsila we-engeli esithombeni ingavela ngezinhlobo eziyi-7. Isibungu se-crustacean sidlula ezigabeni eziningi kakhulu zokuthuthuka. Ezigabeni ezi-2 zokuqala, imisila ye-angler isatshalaliswa ngokulinganayo ekujuleni kolwandle. Kusukela esigabeni sesi-3 sentuthuko, imfanzi iqhubeka isondela ngasogwini.
Imfanzi enomsila oyi-Angled izalwa njengabantu besilisa. Ngeminyaka emithathu, ezinye ze-crustaceans ziba ngabesifazane. Ku-biology, izinhlobo ezinjalo zibizwa ngokuthi ama-protandric hermaphrodites.
Njengoba belahlekelwe yizimpawu zabo zobudoda, abesifazane bakhipha ama-pheromones emanzini. Iphunga labo liheha abesilisa. Ukukhwelana kuthatha imizuzwana engama-40. Ngemuva kokuba izinsikazi zizalela amaqanda angama-30. Lokhu kwenzeka entwasahlobo.
Ukufinyelela ekuvuthweni ngokocansi eminyakeni emithathu ubudala, imfanzi enomsila i-angle iphila iminyaka emi-5-6. Kodwa-ke, ama-crustaceans ajwayele ukufa ngaphambi kwesikhathi, abe yizisulu zezilwane ezidla ezinye, noma abanjwe ngabantu. Amabhizinisi aseMpumalanga Ekude akhuthaza ngenkuthalo lo mkhiqizo ngokunikezela ngomsila wamalahle emakethe yaseRussia. Imfucumfucu ithengiswa yomibili futhi iyahluzwa.
