Izitanki ze-Aquaculture Zokulima Izinhlanzi: Umhlahlandlela Wezobunjiniyela Nokuklama
Kwadalwa ngo 05.11
Amathangi Okulima Izinhlanzi: Umhlahlandlela Wokuklama Nobunjiniyela
Amathangi okulima izinhlanzi (Aquaculture tanks) ayisisekelo esibalulekile sokulima izinhlanzi zesimanje, eziqhakazile. Noma ngabe asetshenziswa kuRecirculating Aquaculture Systems (RAS) noma ezinhlelweni ezilula zokugeleza kwamanzi, ukwakhiwa kwethangi kuchaza impilo yezinhlanzi, ukusebenza kahle kokusetshenziswa kwamanzi, kanye nenzuzo yonke yokusebenza. Ukulima izinhlanzi zesimanje kudinga amathangi anikeza ukulawula okunembayo kwezimo zemvelo, ukuhlukaniswa kwezifo, nokuqina komzimba, okuhambela kude namachibi omhlabathi endabuko ukuya ezitsheni eziyimpumelelo, eziyiklanyelwe.
1. Ukuklama Imvelo: Izimiso Zokuklama Amathangi
Ezokulima inhlanzi ezimbonini, ithangi aliyona nje into yokubeka; liyisistimu yokugcina impilo. Ukuklama ithangi elisebenzayo kudinga ukunakwa kwezinto eziphathelene nokuhamba kwamanzi kanye nokuziphatha kwezinhlanzi.
● Ukuhamba Kwamanzi: Amata-ngi ayindilinga ayathandwa ngoba avumela izici zokuzihlanza. Ngokulawula isivinini sokungena kwamanzi, onjiniyela bakha ukuhamba okuyindilinga okugxilisa ngokwemvelo izinto eziqinile (umquba kanye nokudla okungadliwe) enkabeni yomsele, kunciphisa kakhulu umsebenzi wokuhlanza ngesandla.
● Ubuninzi Bezinhlanzi: Ukulima okujulile kudinga ubuninzi obukhulu bezinhlanzi. Lokhu kudinga amazinga aphezulu okujikeleza kwamanzi kanye nezinhlelo eziqinile zokungenisa umoya ukuze kuvinjelwe ukuqoqeka kwe-ammonia kanye nokuphela komoya-mpilo.
● Ukukhipha Izinto Eziqinile: Umklamo "wokuhlukanisa okuyindilinga" uyinto ejwayelekile emata-ngini asezingeni eliphezulu. Usebenzisa isimo esiyindilinga sethangi ukuhlukanisa izinto eziqinile ezihlalayo emanzini ngaphambi kokuba amanzi aphathwe futhi ajikeleziswe.
2. I-Matrix Eyiqhathanisayo: Izinto Zethangi
Ukukhetha impahla efanele kuthinta Izindleko Zokuba Nazo (TCO) nempilo yesikhathi eside yezinhlanzi.
Impahla | Ukuqina | Izindleko | Isivinini Sokufaka | Okulunge kakhulu |
I-Fiberglass (FRP) | Phezulu | Phakathi | Ngokushesha | Izindawo zokubuthelwa, Ukuhlukaniswa |
Ingilazi-Ehlanganiswe-Nesimbi (GFS) | Phakeme Kakhulu | Phakeme | Emaphakathi | I-RAS Yezohwebo Enkulu |
I-Polyethylene (HDPE) | Emaphakathi | Phansi | Kuyashesha Kakhulu | Amayunithi Amancane/Amahambayo |
Ukhonkolo | Phakeme | Phakeme | Kancane | Ingqalasizinda Enkulu Engapheli |
3. Ukuhlanganiswa kwe-RAS (Recirculating Aquaculture Systems)
Izindawo eziningi zokuhweba zesimanje zisebenzisa i-Recirculating Aquaculture Systems (RAS). Kulezi zinhlelo, amanzi aphathwa njalo futhi aphinde asetshenziswe. Ithangi lokulima izinhlanzi lisebenza njengesishintshi esiyinhloko lapho ukukhula kwezinhlanzi kwenzeka khona, kodwa kufanele lihlanganiswe nezingxenye ezilandelayo ukuze kuphumelele:
● I-Bio-filtration: Iguqula i-ammonia enobuthi ekhiqizwa umquba wezinhlanzi ibe ama-nitrate anomthelela omncane.
● I-Oxygenation: Kubalulekile ezindaweni ezinokuminyana okuphezulu; kuvame ukudingeka ukujova i-oxygen eyi-liquid noma izinto zokujova i-oxygen ezifana ne-cone.
● Izinhlelo Zokuqapha: Izinzwa ezizenzakalelayo ze-pH, izinga lokushisa, i-Dissolved Oxygen (DO), kanye ne-ORP (Oxidation-Reduction Potential) zibalulekile ekuphathweni kwezempilo yezinhlanzi amahora angu-24 ngosuku.
4. Izinto Ezibalulekile Zokuklama
Ukuthuthukisa impilo nokukhula kwezinhlanzi, qiniseka ukuthi ukuklama kwesistimu yakho kubheka lokhu okulandelayo:
1. Isici Sokuphepha: Klama ngesisindo esigcwele samanzi + isisindo sezinhlanzi ngosayizi wokuvuna + isisindo sezinto ezakhiwe (njengezindlela zokuhamba).
2. Izindawo Zangaphakathi Ezibushelelezi: Izinhlanzi zilimele kalula esikhunjeni. Zonke izindawo zangaphakathi zamathangi kufanele zibe bushelelezi, zingangeni manzi, futhi zingabi namaphethelo abukhali ukuze kuvinjelwe izifo zamagciwane zesibili.
3. Ukulawulwa Kokukhanya: Ezinye izinhlobo (njengezinhlanzi zasolwandle ezifana nesalmon) ziyazwela ekukhanyeni. Amathangi angadinga ukuba mnyama noma ambozwe ukuze kuncishiswe ukucindezeleka okubangelwa ukungena kokukhanya.
4. Ukufinyeleleka: Qinisekisa ukuthi izimbobo zokungena, izimbobo zamapayipi, nokufinyelela kokudonsa amanzi zibekwe ukuze kuvunyelwe izinqubo zokuphepha kwezinto eziphilayo (ukuhlanza nokubulala amagciwane kalula).
5. Imibuzo Evame Ukubuzwa (FAQ)
Q: Kungani amathangi ayindilinga engcono kunezingxande ezifuyweni eziningi?
A: Amathangi ayindilinga ahlinzeka ngokulingana kwekhwalithi yamanzi kulo lonke uhlelo. Amathangi angxande (noma "ama-raceways") avame ukuba "nezindawo ezifile" emakhoneni lapho isivinini samanzi siyehla, okuholela ekwakhekeni kwezinto ezimile, amazinga aphansi omoya-mpilo endaweni ethile, nengozi enkulu yokugula.
Q: Ngikhetha kanjani phakathi kwamathangi e-FRP ne-GFS?
A: I-FRP (i-Fiberglass) ilungele kakhulu amayunithi amancane, ucwaningo, nezindawo zokuzalela lapho ukuguquguquka nokuthwaleka kubalulekile. I-GFS (i-Glass-Fused-to-Steel) ingcono kakhulu ekukhiqizeni okukhulu, okuhlala isikhathi eside kwezentengiselwano ngenxa yamandla ayo okwakhiwa, impilo engaphezu kweminyaka engama-30, nokumelana nokonakala kwemvelo.
Q: Yisiphi isici esibaluleke kakhulu ekugcinweni kwamathangi?
A: Ukuphathwa kwezinto ezingaphansi komhlaba kanye nokuphathwa kwezinto eziqinile. Amapulazi aphumelela kakhulu yilawa akwazi ukususa kahle izinto eziqinile eziphilayo ngaphambi kokuba zicwile, okunciphisa umthwalo ku-biofilter futhi kugcine ukwakheka kwamanzi kuzinzile.
Ukukhetha ithangi lokulima inhlanzi elifanele kuyisisekelo sepulazi elizuzisa izinhlanzi. Ngokugxila ekuhambeni kwamanzi, ukuqina kwezinto, kanye nokuhlanganiswa okufanele kohlelo (RAS), abalimi bangafinyelela amazinga okukhula angaguquki futhi banciphise ubungozi. Noma ngabe ukhulisa iphrojekthi encane noma uklama indawo enkulu yokuhweba, ukubeka phambili izixazululo zamathangi eziklanyelwe kahle kuzoqinisekisa ukuthi ukusebenza kwakho kuhlala kukuncintisana, kungakhula, futhi kungazinzile.
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