Izinguquko Ezimeni Ezansi Echibini Kuzo zonke Izigaba ze-Aquaculture

Izinguquko Ezimeni Ezansi Echibini Kuzo zonke Izigaba ze-Aquaculture

Kuyaziwa ukuthi ukulawulwa kwekhwalithi yamanzi kubalulekile ekulimeni kwezilwane zasemanzini, futhi izinga lamanzi lihlobene eduze nesimo sangaphansi kwechibi. Ikhwalithi ephansi yechibi isiza ukuthuthukiswa kwe-aquaculture. Lesi sihloko sizogxila ekushintsheni kwezimo ezingaphansi kwechibi ezigabeni ezihlukahlukene zenqubo ye-aquaculture kanye nezinyathelo ezihambisanayo.

Ngesikhathi senqubo ye-aquaculture, phansi echibini ngokuvamile kwenzeka izinguquko ezine: organicization, ukunciphisa, ubuthi, kanye acidification.

Isigaba sokuqala se-Aquaculture-Inhlangano

Ezigabeni zokuqala zokufuywa kwezilwane zasemanzini, njengoba ukudla kwanda, ukunqwabelana kwemfucumfucu, ukudla okusele, kanye nendle ngaphansi kwechibi kuholela ekwakhiweni kancane kancane kwezinto eziphilayo, inqubo eyaziwa ngokuthi i-organicization. Kulesi sigaba, amazinga omoya-mpilo anele. Umgomo oyinhloko ukubola udaka nendle ngaphansi kwechibi, ukuguqule kube usawoti wezinto ezingaphili kanye nezakhamzimba ukuze kuthuthukiswe ukukhula kolwelwe nokwandisa umoya-mpilo oncibilikisiwe emanzini. Ama-microbial strains angasetshenziswa ukusiza ukubola udaka nendle.

Isigaba Esimaphakathi Sezasemanzini—Ukunciphisa

Njengoba i-aquaculture iqhubeka, ikakhulukazi phakathi nenkathi yokudla ephakeme kakhulu yezilwane zasemanzini, inani lokudla liyaqhubeka landa, okuholela ekuqongeleleni kancane kancane kwezinto eziphilayo echibini okwedlula umthamo wokuzihlanza komzimba wamanzi. Udoti omningi wezinto eziphilayo ubola phansi, okuholela emanzini amnyama nanuka kabi, bese ungena esigabeni sokunciphisa lapho amanzi kancane kancane ephelelwa umoya-mpilo. Isibonelo, i-sulfate ishintsha ibe i-hydrogen sulfide, futhi i-ammonia nitrogen iguqulwa ibe yi-nitrite. Umphumela wokuncishiswa wukuncipha okukhulu komoyampilo ngaphansi kwechibi, okuholela echibini hypoxia. Kulesi sigaba, kunconywa ukusebenzisa ama-oxidizing agents ekuguquleni phansi, njenge-potassium monopersulfate compound kanye ne-sodium percarbonate. Lawa ma-oxidizing agents angakwazi ukukhipha udaka olungaphansi kwechibi, anciphise ukusetshenziswa komoyampilo, futhi athuthukise amandla okukhipha i-oxidation ukuze asuse izinkinga ezimnyama nephunga.

Isigaba Sasekugcineni Se-Aquaculture-Ubuthi

Ekupheleni kwesigaba esimaphakathi, ichibi likhiqiza inani elikhulu lezinto ezinobuthi, okuhlanganisa i-hydrogen sulfide, i-ammonia nitrogen, i-nitrite, ne-methane. Ikakhulukazi i-hydrogen sulfide ne-nitrite ingabangela ubunzima bokuphefumula noma ngisho nokuminyanisa izinhlanzi, izimfanzi, nezinkalankala. Ngakho-ke, lapho amazinga e-nitrite ne-ammonia nitrogen ephakanyisiwe, kuhle ukusebenzisa ama-detoxifying agents ukuze anciphise lezi zinto ezinobuthi.

Isigaba Sakamuva Se-Aquaculture-Acidification

Ekupheleni kwe-aquaculture, phansi kwechibi kuba ne-asidi ngenxa yokuvutshelwa kwenani elikhulu lezinto eziphilayo, okuholela ekwehleni kwe-pH kanye nobuthi obukhulayo be-hydrogen sulfide. Kulesi sigaba, umcako ungafakwa ezindaweni ezinodaka olunqwabelene kakhulu ukuze kuncishiswe i-asidi ngaphansi kwechibi, kukhuphule i-pH, futhi kunciphise ubuthi be-hydrogen sulfide.