Kugawa Mitundu ya Nsomba M'nyanja
Nyanja, yomwe imaphimba pafupifupi 71% ya dziko lapansi, ndi malo ozungulira komanso ovuta okhala ndi zamoyo zosiyanasiyana komanso zosangalatsa. Pakati pa izi, nsomba zimagwira ntchito yofunika kwambiri chifukwa zimapezeka m'mitundu yosiyanasiyana, iliyonse ili ndi mitundu yake yapadera yomwe imalola kuti ikule bwino m'malo osiyanasiyana am'madzi. Kuti timvetse bwino za gulu lalikululi, zimathandiza kugawa nsomba m'magulu kutengera njira zinazake monga taxonomy, malo okhala, ndi physiology. Nkhaniyi ikufuna kufotokoza bwino mitundu ya nsomba m'nyanja, kuti tidziwe bwino kusiyana kwawo kodabwitsa.
Kugawa Taxonomic:
Taxonomy, sayansi yotchula mayina, kutanthauzira, ndi kugawa zamoyo, imagwira ntchito ngati njira yoyambira yomvetsetsa kusiyanasiyana kwa nsomba. Nsomba nthawi zambiri zimagawidwa m'magulu atatu akuluakulu: Agnatha, Chondrichthyes, ndi Osteichthyes.
1. Agnatha
Agnatha, nsomba yopanda nsagwada, ndi imodzi mwa magulu akale kwambiri a nyama zokwawa. Gulu ili limaphatikizapo lampreys ndi hagfish. Mitundu iyi ilibe nsagwada zenizeni ndi zipsepse zolumikizana, ndipo kapangidwe ka thupi lawo ndi kosavuta poyerekeza ndi magulu ena a nsomba.
– Nsomba za Lampreys ndi nsomba zonga nkhono kapena zosakhala nkhono zomwe zimakhala ndi pakamwa poyamwa mano ngati funnel. Zimalumikizana ndi nsomba zina kuti zidye magazi awo.
– Nsomba za Hagfish zimadziwika kuti zimatha kupanga utsi wambiri ngati njira yodzitetezera. Zimadya nsomba zakufa kapena zomwe zikutha kufa mwa kubisala m'mitembo ndikuzidya kuchokera mkati.
2. Chondrichthyes
Nsomba za mtundu wa Chondrichthyes zomwe zimadziwikanso kuti cartilaginous fish, zimakhala ndi mafupa opangidwa ndi cartilage osati mafupa. Gulu ili limagawidwa m'magulu awiri: Elasmobranchii (shaki, rays, ndi skates) ndi Holocephali (chimaeras).
– Ashaki ndi nyama zolusa zodziwika bwino za m’nyanja zokhala ndi matupi otambalala komanso mphamvu zakuthwa. Mitundu yosiyanasiyana imayambira pa shaki yaing’ono ya lantern shaki mpaka shaki yaikulu ya whale shaki.
– Ma Rays ndi Skate amadziwika ndi matupi awo ophwanyika komanso zipsepse zazikulu za pachifuwa. Ma Rays, monga manta ray, nthawi zambiri amakhala ndi mbola zapoizoni, pomwe ma skates alibe njira zotere.
– Nsomba za Chimaera, kapena kuti shaki za mizimu, zili ndi matupi ataliatali komanso thupi lapadera losiyana ndi nsomba zina zokhala ndi chilonda. Zimakhala m'madzi akuya a m'nyanja.
3. Osteichthyes
Nsomba za Osteichthyes, kapena kuti nsomba za mafupa, ndi gulu losiyanasiyana kwambiri, lomwe lili ndi pafupifupi 96% ya mitundu yonse ya nsomba. Gulu ili limagawidwa m'magulu awiri: Actinopterygii (nsomba yokhala ndi zipsepse za ray) ndi Sarcopterygii (nsomba yokhala ndi zipsepse za lobe).
– Nsomba zokhala ndi zipsepse za Ray zimasonyeza zipsepse zothandizidwa ndi mafupa omwe amadziwika kuti ma rays. Zitsanzo zikuphatikizapo mitundu yotchuka monga tuna, salmon, ndi clownfish.
– Nsomba zokhala ndi zipsepse za lobe zimakhala ndi zipsepse zokhala ndi mnofu, zopindika, komanso zolumikizana, zomwe zimalumikizana ndi thupi ndi fupa limodzi. Gulu laling'ono ili limaphatikizapo coelacanth ndi lungfish, zomwe zimasonyeza makhalidwe apadera osinthika.
Kugawika kwa Malo Okhala:
Nsomba zimathanso kugawidwa m'magulu kutengera malo omwe zimakhala. Malo okhala m'nyanja amasiyana kwambiri, ndipo nsomba zasintha kuti zipitirire kukula m'malo osiyanasiyana okhala ndi zachilengedwe.
1. Nsomba za Pelagic
Nsomba za m'nyanja ya Pelagic zimakhala m'nyanja yotseguka, kutali ndi pansi pa nyanja. Nthawi zambiri zimadziwika ndi machitidwe awo osamukira komanso khalidwe lawo lopita kusukulu.
– Epipelagic Zone Nsomba zimakhala pamwamba pa nyanja, kufika mamita 200 m'litali. Gawoli, lomwe limadziwikanso kuti dera la dzuwa, ndi kwawo kwa mitundu monga sardines, mackerel, ndi tuna.
– Malo Ozungulira Maso. Nsomba zimakhala pansi pa nthaka mamita 200 mpaka 1,000. Chodziwika kuti malo ozungulira usiku, chimakhala ndi mitundu ya zomera monga lanternfish ndi bristlemouths.
– Malo Osambira Nsomba zimakhala m'dera la pakati pa usiku, pakati pa mamita 1,000 mpaka 4,000. Pano, nsomba monga anglerfish ndi gulper eels zimazolowera kukhala ndi moyo mumdima wathunthu komanso kuthamanga kwambiri.
2. Nsomba ya m'madzi
Nsomba za m'madzi a m'nyanja ndi nyama zokhala pansi pa nthaka zomwe zimakhala pafupi kapena pansi pa nyanja. Nthawi zambiri zimakhala ndi njira zomwe zimazilola kudya zamoyo zam'madzi.
– Nsomba za m’mphepete mwa nyanja zimapezeka m’madzi osaya kwambiri pafupi ndi gombe. Mitundu monga nsomba zotchedwa flounders, groupers, ndi sea bass zimakhala m’derali.
– Nsomba za m’nyanja ya Demersal zimakhala pansi kwambiri, kupitirira malo osungiramo zinthu zakale. Gululi limaphatikizapo mitundu ngati hagfish, yomwe imadya nsomba pansi kwambiri.
3. Nsomba za m'madzi a m'mphepete mwa nyanja
Nsomba za m'matanthwe zimakhala m'matanthwe a coral komanso m'madera ozungulira. Malo amenewa amathandiza mitundu yosiyanasiyana ya zamoyo chifukwa cha kapangidwe kake kovuta komanso zinthu zambiri zothandiza.
– Nsomba za m’mphepete mwa nyanja nthawi zambiri zimakhala ndi mitundu yowala ndipo zimaphatikizapo mitundu monga nsomba za parrotfish, clownfish, ndi butterfly fish. Mitundu yawo imagwira ntchito ngati yobisala, yokopa mabwenzi, komanso yowonetsera malo.
– Nsomba za m’madzi ozizira zimakhala m’madzi ozizira ndipo zimaphatikizapo mitundu yosiyanasiyana ya nsomba monga kelp bass ndi wrasses.
Kugawa kwa Zamoyo ndi Makhalidwe:
Nsomba zimathanso kugawidwa m'magulu kutengera makhalidwe ndi machitidwe enaake a thupi.
1. Mapulaneti
Nsomba zokhala ndi zomera zimadya makamaka plankton. Zitsanzo zake ndi monga shaki yaikulu ya whale shark ndi basking shark, komanso mitundu yaying'ono monga anchovies ndi herring.
2. Nsomba za Piscivore
Nsomba zodya nyama zambiri ndi zamoyo zomwe zimadya nsomba zina. Gululi limaphatikizapo nyama zolusa monga shaki, swordfish, ndi barracudas.
3. Zinyama Zodya Udzu
Nsomba zodya zomera zimadya zomera za m'nyanja, monga algae ndi udzu wa m'nyanja. Nsomba za parrot ndi mitundu ina ya nsomba zodya zomera ndi zitsanzo za nsomba zodya zomera zomwe zimapezeka m'matanthwe a m'nyanja.
4. Zodya zonse
Nsomba zodya nyama zonse zimadya zakudya zosiyanasiyana zomwe zimaphatikizapo nyama ndi zomera. Mitundu yambiri ya nsomba za m'matanthwe, monga sergeant major, imadya nyama zonse, ndipo imasintha zakudya zawo kuti zigwirizane ndi zomwe zilipo.
5. Zowononga ndi Zowononga
Nsomba zimenezi zimadya zinthu zamoyo zakufa. Mitundu monga hagfish ndi mitundu ina ya catfish imagwira ntchito yofunika kwambiri pa chilengedwe, kuthandiza kubwezeretsanso michere m'zamoyo zam'madzi.
Kutsiliza:
Kugawa nsomba m'nyanja ndi ntchito yovuta komanso yosiyana siyana, kusonyeza kusiyanasiyana kodabwitsa komanso kusintha kwa zamoyo zam'madzi izi. Kumvetsetsa magulu a taxonomic, malo okhala, komanso a thupi kumathandiza asayansi ndi okonda zinthu zosiyanasiyana kuyamikira mitundu yosiyanasiyana ya zamoyo zam'madzi. Pamene chidziwitso chathu cha kuya kwa nyanja chikupitirira kukula, momwemonso kuyamikira kwathu nsomba zomwe zimakhalamo kukukulirakulira, iliyonse ikuthandiza mwapadera ku kusinthasintha kwa chilengedwe cha m'nyanja.
