Daphnia: ndawo. Lapho namazeze baphile? Kungenzeka yini ukuba daphnia ukuzalela ekhaya?

Abaningi bethu bayajabula ngokuthi bahambisa ukubukela ukunyakaza abathathela of izinhlanzi aquarium. Lokhu umbukwane uthulisa abese ephumula, kodwa bambalwa bayazi ukuthi enzima empeleni kuvela yesondlo lwendlu ubuhle obunjalo.

fish ukudla

Kakade eziningi kangaka emashumini isilwane abathandi izinhlanzi zisebenzisa Daphnia ukudla nezilwane zakho emanzini. Ngisho nasezikhathini Soviet, lezi ezinamagobolondo wabanjwa aquarists imizimba natural yamanzi. Kuyaqondakala ukuthi bebengayikuba ukwazi kahle lapho Daphnia uhlala. Khona-ke ukubamba ezinamagobolondo isetshenziswe kuphela ngesimo ophilayo, kodwa simisiwe, yomiswa. Yiqiniso, ekhaya aqukethe inani elikhulu lazo nzima impela, yingakho abantu abaningi zama iqhwa Daphnia esikhathini yokuzalanisa mass endle. Uma sikhuluma umsoco ukudla eqandisiwe, cishe akusho ingawuveza ezinamagobolondo bukhoma. Okwamanje isilwane ezitolo, ungakwazi kalula ukuthenga daphnia eqandisiwe, ngakho i workpiece ezimele enjalo iba esifuze esidlule.

Isakhiwo daphnia

Ngithanda ukukhuluma kancane mayelana nendlela yokwakha lezi cladocerans, okuyinto esikubiza ngokuthi daphnia. umzimba wabo unamandla ngokwanele singatsheki onomfutho, embozwe zokugcina esinezinyathelo chitin igobolondo.

Daphnia ngokuvamile ube namehlo amabili, okuyinto ahlelwe ekhanda, kodwa ngezinye izikhathi abavuthiwe ngabanye ziyehluka khona neso lezinambuzane elibona nxazonke, eduze kwayo i esesicabheni encane ezengeziwe kungenzeka. Ngo usayizi ikhanda elincane futhi amabili namabhuzu antenna. Ezingemuva (wesibili) inikezwa nge pair obengeziwe bristles futhi usayizi esikhulu. Kuyinto ngenxa lezi unhlangothi antennok ngenkathi ushayela daphnia ukwenza uhlobo eqa. Ngakho-ke, abantu bebizwa "amanzi namazeze".

ukukhiqizwa kabusha ezinamagobolondo

Uma ubheka inqubo kabusha lezi ezinamagobolondo ezincane kusukela Ngokombono wabantu, bese sidlule engavamile kakhulu. Izinsikazi kwalesi silwane ube okuthiwa Nzalo sikhwama okuyinto ivikelwe igobolondo onqenqemeni futhi ukulungele ukuveza ngemuva. Lapho izimo ezikahle zidalwe emhlabeni Insikazi ibekela amaqanda 50-100 unfertilized phakathi komgodi, lapho ukuthuthukisa. Kuyinto ukwazi ukuthi lezi amaqanda nabesifazane kuphela ukuboniswa ushiye ekamelweni ngokuphepha. Ezinsukwini ezimbalwa nje inqubo iyaphindwa, futhi insikazi abasha, esekhulile futhi zikhula ubhalisele lesi ukukhiqizwa kabusha inqubo okusheshayo. Yingakho ehlobo lapho uhlala daphnia, amanzi sengathi ababethi anombala obomvana. Ichibi is agcwele ke plankton. Uma ekupheleni kwehlobo, izinga lokushisa lehliselwa namanzi, kukhona abesilisa ngubani zalisa nabesifazane akunika amabhola nge isikhumba obukhulu. Lezi amaqanda avundiswa abizwa ngokuthi Ephippia. sici yabo esiwuphawu yikhono ukumelana yesithwathwa ebusika kanye amachibi ezomile futhi ungasabalalisa uthuli. Njengoba sekunama-isiphethu, futhi ukushisa yalezi nabesifazane dweba, futhi ngibone umjikelezo wokuphila iphindwa futhi.

ukukhahlamezeka kwendawo

Ngemva sithole lokho daphnia, lezi amalungu uhlobo lwe kwendawo planktonic futhi kufanele makwaziwe kithi, njengoba ngiqinisekile abaningi kulabo ukufunda lesi sihloko yilezi nayizimfundamakhwela izinhlanzi isilwane, ufisa ifa ukwaziswa okunjalo. Ngakho, ukuze ube nalezi ezinamagobolondo amancane angaba amile imizimba amanzi ezifana namachibi, amachibi igcwele amanzi, emiseleni ngisho amaxhaphozi. Ngokuvamile self-ukuvunwa daphnia yizindawo omuhle kakhulu ukuhlangana kwabo mass. Thola indawo unga kalula ngokwanele: lapho daphnia bukhoma, amanzi ngokuvamile has a kwe-tint grey-oluhlaza noma ngokubomvu. Ukudla ngabo kukhona ciliates, ama-bacterium, isitshalo plankton.

Lezi Daphnia ezahlukene

Labo abafisa ukubamba Daphnia wabo kumelwe kubhekwe, sensitive ekukhanyeni njengoba benjalo. Ngo ukukhanya okukhulu, ezinamagobolondo izozama inamandla. Kunezinhlobo ezahlukene Daphnia. Ngokuvamile atholakala zone phakathi crustacean Daphnia magna. Insikazi ifinyelela ubude 6 mm, futhi lapha iduna - 2 kuphela mm. Bahlala ngokuvamile izinsuku 110-150, futhi ukuletha bamba amaqanda ku-80, ezimila izinsuku 4-14. I ezinamagobolondo kulencane ukufinyelela 1.5 kuphela mm ubukhulu futhi uvuthwe emini, kodwa nangezinhlaka zonke izinsuku 1-2 kuze kube amaqanda 53.

Yiziphi kuhle izinhlanzi?

Kungani aquarium abathandi izinhlanzi zama qiniseka ukuwondla daphnia? Kulula kabi. Kungakhathaliseki yokuthi ngabe buhlangene noma ezinamagobolondo Ezazisanda kubanjwa, isisu sabo ngokuvamile egcwele ukudla isitshalo, kodwa ngakho kuhle aquarium inhlanzi, ngubani beswela ukudla yemvelo. Yingakho kumele kube namazeze e aquarium. Naphezu kweqiniso lokuthi igobolondo Daphnia akuyona kugaywe, siwulimi enhle kakhulu wezokudla fibre. Siyabonga kuye, kukhona nalomsebenzi emathunjini zezinhlanzi, okuyinto azikwazi ukuhamba ngokugcwele ku aquarium. Ukuze okwamanje esekhulile inhlanzi aquarium nje abamele ephelele daphnia kencanikhulu - Ministry of Education, wathola eyaziwa ngokuthi "viviparus".

Uma uhlela bebodwa ukubamba ezinamagobolondo, kufanele sikhumbule ukuthi lapho uhlala daphnia, kwenzeka ngokulandelana ekushintsheni usayizi labantu ezinamagobolondo. Ukuze ngokudoba net esetshenziswa izicubu zabo amaseli kufanele luhambisane catch oyifunayo. Abanye "Abadobi" abanolwazi belulekwa ukubamba inetha butterfly nge anezikhala esihle kakhulu, futhi kuphela ke ukuhlunga ukudla ngosayizi ngokusebenzisa kwesikrini anezikhala ezahlukene. Ukuze bahlanganyele ngokudoba ngangokunokwenzeka, kusukela entwasahlobo kuze kwesigubhu livela uqweqwe ice. Ukukhetha sehlo ngokuvamile bavikelekile ebhishi umoya ngosuku ezolile ekuseni noma kusihlwa. Okungcono kakhulu, uma ukukhanyisa sifiphele. Khona-ke daphnia, ukukhahlamezeka kwendawo okuyiwona ngaleyo ndlela kuba evumayo, ngeke ifike izingqimba engenhla.

amathiphu wazibonela

Khumbula ukuthi isikhuphashe awukwazi ukubekezelela i-high density kakhulu, ngakho ukuthuthwa daphnia ngemva ekubambeni cabangani kuhle. Zingase futhi kungalahleka uma ushintsho ngokushesha lokushisa. Kungenzeka ukuthi zihlobene inqubo ukuhlunga nokugeza, kanye ukusuthisa izinhlanzi. Kubalulekile ukuthatha inothi abanikazi aquarium ukondla izilwane ezingahlanjiwe ezinamagobolondo yingozi. Lokhu kungaholela yokuthi ufundise amakhodi ezidala noma izifo ekhaya lakho echibini.

zizalela daphnia

Ngokuzalanisa namazeze ekhaya - umsebenzi kahle elula, kodwa kudinga ukunakekelwa nesineke. Lokhu ngokuvamile lisetshenziswa njengendlela ukudla, imvubelo lombhaki. Kumele ukuya umbala amanzi e isitsha lapho ukuzalela ezinamagobolondo. Amanzi kufanele liluhlazana noma ukukhanya brown. Uma uqaphela ukuthi umbala kuba ayegcwele ke isidingo ikhefu 1-2 izinsuku okwenza nemvubelo. Maduze, amanzi kufanele kukhanye futhi.

Uma yokuzalanisa Daphnia obonakala kuwe yokuchitha isizungu kujabulise kakhulu futhi ezithakazelisayo, qaphela kakhulu futhi uqiniseke ukuthi kanye ezinamagobolondo ku isitsha abakutholanga nezinye izakhamuzi zaseMpumalanga amadamu, ikakhulukazi Cyclops. Thola khulu kanye nokuhlola yonke nabesifazane ngosuku ekamelweni Nzalo. Uma siphansi in amaqanda, kubalulekile ukuba siqinise umsoco. Daphnia, okuyinto Habitat ekhaya - kuyinto aquarium noma esitsheni yesikhashana yamanzi, ungakwazi futhi idla omisiwe amahlamvu sembabazane noma ulethisi. Ngaphambili they ziyacolwa, bese elicwengekileyo ngokusebenzisa cheesecloth.

Kunenye indlela elula daphnia ukuzalela ekhaya. Ukuze wenze lokhu amakilasi kukhathaza bazodinga plastic noma koqweqwe lwawo okugeza, okumele isigamu sigcwale amanzi, futhi walala abolile hay amahlamvu liwile. Ngaphezu kwalokho, lolu ngqimba-bacterium ozokhula, okuzokwenza zibe ngukudla kwezinyoni ezinamagobolondo. Ngezinye izikhathi, ukuze ahlinzeke kwamandla angeziwe bacterium, amanzi yengezwe ngo obuncane imvubelo (cishe 15 g ngalinye 1 m ³ amanzi). Lokhu kumele kwenziwe njalo ngemva kwamasonto amabili njengoba amanzi kuba lula.

Futhi manje ebaluleke kakhulu into: daphnia, ukukhahlamezeka kwendawo kuyinto - lokhu ngokuvamile umzimba wemvelo lamanzi kufanele uthole ezitsheni wakho ukudla okuphekiwe. Ngenxa yale njongo ku emi catch kwesigubhu cishe 100 amalitha ezinamagobolondo amanzi 50 wathela emgqonyeni lelungiselelwe.