I-Oceanic posidonia Iyaziwa ngendima yayo emabhishi nangesimo sayo esisongelwayo. Kunabantu abaningi abazi noma abake bezwa nge-posidonia oceanica, kepha abazi ukuthi kungani kubaluleke kangaka nokuthi banamuphi umsebenzi.
Enye yezinto zokuqala ukwazi nge-posidonia oceanica ukuyihlukanisa nokhula lwasolwandle. I-Posidonia ayilona ulwelwe, kuyisitshalo esingaphansi kwamanzi. Inezithelo, izimbali, amaqabunga, isiqu nezimpande njengesitshalo esijwayelekile. Ngabe ufuna ukwazi ukuthi kungani kubaluleke kangaka ukuyilondoloza?
I-Oceanic posidonia
I-posidonia oceanica isitshalo esingaphansi kwamanzi esiqhakaza ekwindla futhi sikhiqize izithelo ezaziwa ngokuthi "iminqumo yasolwandle". Kuyisitshalo se-photophilic, okungukuthi, sidinga ukukhanya kwelanga noma ngabe singaphansi kwamanzi ukwenza i-photosynthesis. Ngaphezu kwalokho, i-posidonia isatshalaliswa ezilwandle okwakha izimfunda zotshani basolwandle.
Omunye wemisebenzi i-posidonia anayo ukwenza ube yisibonakaliso esihle samanzi ahlanzekile, ngoba ihlala emanzini ahlanzekile kuphela. Azimukeli izindawo ezingcoliswe kahle kakhulu, hhayi ezomoya-mpilo, ezinobuningi obunamandla noma ngezinto ezingaphezulu ngokweqile. Yisitshalo esivamile seMedithera, esamenyezelwa njenge-UNESCO njengendawo eyiGugu Lomhlaba ngokuhlonipha izinzuzo zayo eziningi zemvelo.
Ukubaluleka kwe-posidonia yasolwandle
Omunye wemisebenzi esemqoka ehlinzekwa izimfundamakhwela zasolwandle Kufanele zinikeze i-biomass ne-oxygen ukuze zenze izindawo zokuhlala ezifanele ukusinda kwezinhlobo eziningi. Ngakho-ke, uma i-posidonia ifaka isandla ekusindeni kwezinhlobo eziningi zezinto eziphilayo, izingqimba lapho kutholakala khona ama-phanerogam zandisa ukwehluka kwazo. I-ecosystem enokuhlukahluka okuningi kwezinhlobo zezinto eziphilayo isengozini encane kakhulu kwimithelela engakhiqizwa kuyo.
Omunye wemisebenzi esemqoka ye-posidonia ngu leyo yokwehlisa ukuguguleka kwamabhishi. Benza lokhu ngokunciphisa inani lentlenga eliza namagagasi alibambele ezindaweni ezinotshani. Ngaphezu kwalokho, bakha imigoqo emelana namagagasi. Izindawo ezinotshani zikhiqiza phakathi kwamalitha ama-4 kuya kwangama-20 oksijini ngosuku ngemitha ngayinye eyisikwele, okungomunye wemithombo ebaluleke kakhulu yokungenisa umoya-mpilo eMedithera. Ingxenye yalokhu oksijini isakazeka emkhathini womhlaba ngezikhathi zokukhiqiza okuphezulu.
Uma siqala ukukala inani lezinto eziphilayo ezisinda ngenxa yamadlelo we-posidonia, sinezinhlobo zezitshalo ezingaba ngu-400 nezinhlobo zezilwane ezingaba yinkulungwane. Zonke lezi zidalwa eziphilayo zinendawo yazo yokuhlala emadlelweni e-posidonia. Ngakho-ke, ukongiwa kwalezi zimfunda kubaluleke kakhulu uma sifuna ukonga zonke ezinye izinhlobo ezingeziwe. AmaGrasslands futhi ayindawo enhle yokuzalanisa izilwane ezinjengeziponji, i-starfish, imollusks, amakhulu ezinhlanzi, ama-seahorses, njll.
Izinhlobo eziningi ezizalanayo emadlelweni e-posidonia zinentshisekelo enkulu kwezentengiselwano, ngakho-ke ukubhujiswa kwazo kungaholela ezinkingeni ezinkulu emnothweni wendawo ophila ngokudoba. Ukuvakasha kokuntywila kuzolahlekelwa ngokubaluleka okukhulu futhi ngokubhujiswa kwezimila ze-posidonia. Kulinganiselwa ukuthi izinzuzo zezomnotho ezikhiqizwa yizindawo ezinotshani zise-14.000 euros ehektheleni ngalinye ngonyaka.
Yini ethinta i-posidonia oceanica?
Ukucekelwa phansi kwezindawo ezinotshani kuyashesha kakhulu ngenxa yemithelela abantu abenza kuzo. Imithelela enjengokungcola kwamazansi, ukweqisa kwezinto eziphilayo (ezinomthelela ekukhuleni okulungile kwesitshalo) kanye nokufudumala kwamanzi aseMedithera okubangelwe ukuguquka kwesimo sezulu ngeminye yemiphumela ebhubhisa i-posidonia meadows. Ngemuva kwehlobo elishisayo, izinga lokufa likhulu kangangokuba ukulahleka akukwazi ukunqotshwa ukukhula, ehamba kancane kakhulu.
Esinye sezenzo zomuntu esonakalisa kakhulu i-posidonia meadows ukudoba okungekho emthethweni. AmaGrassland nawo abhujiswa ngokumba phansi, ukulahla, imfucumfucu evela emanzini, ukwakhiwa kogu, ulwelwe olungenayo, njll.
Njengoba ukwazi ukubona, lesi sitshalo sisebenziseka kakhulu ukusivikela.