Nā Kūlana no ka Hoʻoholo ʻana i ka Maikaʻi o ka Wai Kai
ʻO ke ʻano maikaʻi o ka wai kai he mea nui ia i ka mālama ʻana i ke kaulike o nā kaiaola kai a me ke kai, e kākoʻo ana i ka hoʻomau ʻana o ka lawaiʻa a me ka mahiʻai wai, a me ka hōʻoia ʻana i ka palekana o nā hana kanaka like ʻole e like me ka mākaʻikaʻi, ka hoʻouna ʻana i nā moku, a me ka hoʻohana ʻana i ka wai kai ma nā ʻoihana. ʻAʻole hiki ke hana wale ʻia ka hoʻoholo ʻana i ka maikaʻi o ka wai kai ma ka "nānā ʻana" i ka wai maʻemaʻe, no ka mea, he nui nā mea koʻikoʻi—e like me ka nui o nā kemika, ka microbiology, a me ke alo o nā mea haumia—ʻaʻole ʻike mau ʻia e ka maka ʻōlohelohe. No laila, pono nā pae loiloi a me nā ʻano hana e hiki ke ana ʻia a kūlike, a pili lākou i nā kūlana ʻepekema a me nā lula pili.
1. Nā Palena Kino: Nā Hōʻailona Mua o nā Kūlana Wai
ʻO nā palena kino ka hana mua i ka loiloi ʻana i ke kūlana maʻamau o ka wai kai no ka mea he maʻalahi ke nānā a ana ʻia ma ke kahua. Eia nō naʻe, pono e hoʻopili ʻia nā palena kino me nā palena ʻē aʻe e pale aku i nā wehewehe kuhihewa.
He mea koʻikoʻi ka mahana no ka mea e pili ana ia i ka metabolism o ke ola kai, ka solubility oxygen, a me nā kaʻina hana kemika a me ke olaola i loko o ka wai. ʻAʻole pono ka mahana wai kai "maikaʻi" e haʻahaʻa, akā, ʻo ia kekahi e kūlike me nā kūlana kūlohelohe o ka ʻāina. ʻO ka piʻi ʻana o ka mahana maʻamau ʻole (no ka laʻana, ma muli o ka hoʻokuʻu ʻana o ka wai wela ʻoihana) hiki ke hoʻoulu i ke kaumaha ma luna o ke ola kai, ka hoʻokeʻokeʻo ʻana o ka coral, a me nā loli i ka haku mele plankton.
ʻO ka paʻakai, a i ʻole ka nui o ka paʻakai, he paʻa loa ia ma ke kai ākea, akā hiki ke loli ma nā awa ma muli o ke kahe ʻana o ka wai maʻemaʻe. ʻO ka paʻakai i kūpono i nā ʻano o ka ʻōnaehana kūloko he mea nui ia no ke ola ʻana o nā meaola koʻikoʻi, ʻoi aku hoʻi i ka mahi ʻōpae kai a me ka iʻa.
Hōʻike ka moakāka a me ka ʻūlū i ka mamao o ke komo ʻana o ka lā i loko o ke kolamu wai. Hiki i ka wai ʻūlū nui ke kāohi i ka photosynthesis e phytoplankton a me ka mauʻu kai, a hiki nō hoʻi ke hōʻino i ke olakino o ka ʻaʻa koʻa no ka mea hiki i ka lepo ke uhi i nā ʻili koʻa. Hoʻopili pinepine ʻia ka ʻūlū kiʻekiʻe me ka ʻino ʻana o ka ʻāina, ka ʻeli ʻana, a i ʻole ke kahe ʻana o ka lepo mai nā muliwai.
ʻO ke ana o ka Total Suspended Solids (TSS) i ka nui o nā mea paʻa i hoʻokuʻu ʻia e hiki ke hoʻonui i ka turbidity. Hiki i ka TSS kiʻekiʻe ke hoʻoulu i nā pilikia hanu i loko o ka iʻa, hoʻonui i ka sedimentation, a lawe i nā mea haumia i hoʻopili ʻia i nā ʻāpana liʻiliʻi.
2. Nā Palena Kemika: Ke Loiloi ʻana i ke Kaulike Haumia a me ka Ukana
Hoʻohana ʻia nā palena kemika e loiloi ai inā aia ka wai kai i loko o ke kūlana kaulike no ke ola a ʻaʻohe ona ukana haumia ʻino.
ʻO ka maʻamau, ʻo ka pH (kekelē o ka acidity) o ka wai kai he alkaline. ʻO ka emi nui ʻana o ka pH hiki ke hōʻike i ka acidification o ke kai a i ʻole ke kahe ʻana o kekahi mau mea haumia. He kuleana koʻikoʻi ko ka pH i ka hiki o nā meaola e like me nā corals a me nā mollusks ke hana i nā pūpū a me nā iwi (calcification).
He hōʻailona koʻikoʻi ka oxygen i hoʻoheheʻe ʻia (DO). Kākoʻo nā wai me ka DO lawa i ke ola o nā iʻa a me nā meaola ʻē aʻe. Hiki i ka DO haʻahaʻa ke hopena mai ka eutrophication (nā meaʻai keu), ka mea e hoʻoulu ai i ka ulu ʻana o ka algal. Ke make ka algae a palaho, hoʻohana ʻia ka oxygen e nā microorganism. Hiki i nā kūlana koʻikoʻi ke hana i nā "wahi make" kahi i liʻiliʻi ai ke ola.
ʻO ke koi ʻana o ka ʻOkikena Biochemical (BOD) a me ke koi ʻana o ka ʻOkikena Kemika (COD) ke ana i ka ʻokikena e pono ai e hoʻopau i nā mea olaola (BOD) a me nā kemika oxidizable āpau (COD). ʻO nā waiwai BOD/COD kiʻekiʻe e hōʻike pinepine ana i ka haumia olaola mai nā ʻōpala hale, ka ʻoihana meaʻai, ka mahi holoholona, a i ʻole nā hana awa. ʻO ka wai kai maikaʻi ke ʻano he haʻahaʻa ka BOD a me COD i loko o nā kūlana maikaʻi.
Nā Meaʻai: pono ka nitrate, nitrite, ammonia, a me ka phosphate no ka ulu ʻana o ka phytoplankton, akā hiki i nā pae keu ke alakaʻi i ka eutrophication. Mālama nā wai olakino i kahi kaulike meaʻai olakino, e mālama ana i ka huahana mua paʻa me ka ʻole o ka hoʻoulu ʻana i nā pua algal ʻino (HABs).
He mau mea koʻikoʻi ka ʻaila a me ka momona i nā awa a me nā ala moku. Hiki i ka ʻaila o luna ke keakea i ka hoʻololi ʻana o ka oxygen, hōʻino i nā ʻōpū iʻa, pipili i nā manu kai, a hoʻohaʻahaʻa i ka nani o ke kahakai. Pono ka maikaʻi o ka wai kai i kahi ʻaila haʻahaʻa loa a ʻaʻohe ʻili ʻike ʻia.
Pono e nānā ʻia nā metala kaumaha e like me ka mercury (Hg), ke kēpau (Pb), cadmium (Cd), arsenic (As), a me ka chromium (Cr) no ka mea he mea ʻawahia lākou, paʻa, a hiki ke hōʻiliʻili i loko o ke kaulahao meaʻai (bioaccumulation a me biomagnification). ʻOiai he haʻahaʻa paha ka nui o ka wai, hiki i ko lākou hopena ke koʻikoʻi i nā iʻa paʻi, nā iʻa, a ma ka hopena, i nā kānaka e ʻai ana iā lākou.
3. Nā Palena Olaola a me nā Microbiological: Palekana a me ke Ola Kino o ka ʻŌnaehana Kaiaola
ʻAʻole wale ka maikaʻi o ka wai kai i hoʻoholo ʻia e nā helu kemika-kino, akā, e nā kūlana olaola pū kekahi.
Hoʻohana pinepine ʻia ka Chlorophyll-a ma ke ʻano he hōʻailona o ka biomass phytoplankton. ʻO ke kiʻekiʻe loa o nā pae chlorophyll-a hiki ke hōʻike i ka eutrophication, ʻoiai ʻo nā pae haʻahaʻa i loko o nā wai i manaʻo ʻia he huahua hiki ke hōʻike i ke kaumaha o ke kaiapuni a i ʻole ka nele i nā meaʻai. Pono ka wehewehe ʻana i ka noʻonoʻo ʻana i ke kau a me nā dinamika o kēia manawa.
ʻO ke alo o ka plankton ʻino (e like me kekahi mau dinoflagellates) he hōʻailona ia o ka pilikia o nā HAB, hiki ke hana i nā mea ʻawahia. Hiki i ka ulu ʻana o ka limu ʻawahia ke hoʻopau i nā iʻa he nui, hoʻohaumia i nā iʻa paʻa, a hoʻoweliweli i ke olakino kanaka.
He mea nui loa nā bacteria hōʻailona no ka haumia o ka ʻōpala, e like me Escherichia coli a me Enterococcus, ma nā wahi mākaʻikaʻi kai a me nā wai kokoke i nā wahi noho. Hiki i nā pae kiʻekiʻe o nā bacteria hōʻailona ke hōʻike i ke kahe ʻana o nā ʻōpala home a hoʻonui i ka pilikia o nā maʻi ʻili, ka maʻi pākī, a me nā maʻi ʻē aʻe i loko o ke kanaka.
ʻO ke ʻano like ʻole o nā meaola a me ke kūlana o ka ʻōnaehana ola wai (e.g., ka uhi koʻa ola, ke olakino o ka mauʻu kai, a i ʻole ka hoʻohuihui macrobenthos) he mau hōʻailona ʻōnaehana ola piha. ʻO ka wai olakino he mau ʻōnaehana ola paʻa, nā kaiāulu wai like ʻole, a me nā hōʻailona liʻiliʻi o ke kaumaha e like me ka hoʻokeʻokeʻo ʻana o ka koʻa, ka make ʻana o ka wai, a i ʻole ka mana o nā ʻano manawa kūpono.
4. Nā Palena Hoʻohaumia Kūikawā: Nā Microplastics a me nā Mea Pōʻino
I nā makahiki i hala iho nei, ua uku nui ʻia ka manaʻo i nā mea haumia i nānā pinepine ʻole ʻia ma mua.
Hiki i nā microplastics ke loaʻa mai nā ʻāpana plastik nui, nā olonā lole synthetic, a me nā huahana mālama pilikino. ʻAʻole wale nā microplastics e hōʻino i nā meaola e ʻai ana iā lākou akā hiki ke lawe pū i nā kemika ʻawahia e pili ana i ko lākou mau ʻili. ʻOiai ke holomua nei nā kūlana no ka maikaʻi o ka microplastic, ke lilo nei ka nānā ʻana i ka microplastic i mea nui i ka loiloi ʻana i ka maikaʻi o ka wai.
Hiki i nā kemika weliweli e like me nā pesticides, nā detergents, nā hui organik paʻa, a me kekahi mau ʻōpala ʻoihana ke lilo i mau palena kikoʻī ma muli o nā hana ma nā wai a puni. ʻO ka hoʻoholo ʻana i nā palena kikoʻī ma muli o ka loiloi kumu ma ia wahi.
5. Kūpono no ke Kumu: "Maikaʻi" Pili i ke Kumu
Pono e hoʻopilikino ʻia nā kūlana no ka maikaʻi o ka wai kai i kona hoʻohana ʻia. Pono ka wai kai no nā wahi mālama koʻa i nā kūlana koʻikoʻi ma mua o nā wai awa. Pēlā nō, no ka mahiʻai ʻana i ka wai, ua hoʻonohonoho mua ʻia nā palena e like me ka ammonia, ka oxygen i hoʻoheheʻe ʻia (DO), ka turbidity, a me ke alo o nā pathogens. I kēia manawa, no ka mākaʻikaʻi kai, ʻo nā ʻano microbiological, ka mōakāka, a me ka ʻaila/ʻōpala lana pinepine nā mea nui e hoʻoholo ai.
ʻO ke ala kūpono loa, ʻo ia ka hoʻohana ʻana i nā kūlana maikaʻi o ka wai kai i hoʻokumu ʻia e ke aupuni (a i ʻole nā kūlana honua), a laila e hoʻohui iā lākou me nā ʻōkuhi kaiaola a me ka nānā mau ʻana e ʻike i nā ʻano lōʻihi, ʻaʻole wale nā kūlana no ka manawa pōkole.
6. Nā ʻAno Loiloi: Nānā ʻana, Laʻana, a me ka Nānā ʻana i nā ʻAno
ʻAʻole lawa ka hoʻoholo ʻana i ka maikaʻi o ka wai kai me kahi ana hoʻokahi. Pono ia:
1. Ka lawe ʻana i kahi laʻana i kēlā me kēia manawa (i kēlā me kēia lā, i kēlā me kēia pule, i kēlā me kēia mahina) e like me nā pono a me nā loli o ka wahi.
2. Nā wahi laʻana kūhelu: kokoke i nā awa kūʻono, nā wahi ʻoihana, nā wahi mākaʻikaʻi, nā wai ākea, a me nā wahi mālama.
3. Nā ana ma kahi no nā palena e loli wikiwiki ana (mahana, pH, DO, paʻakai).
4. Nā hoʻokolohua keʻena hoʻokolohua no nā meaolaola, BOD/COD, nā metala kaumaha, ka microbiology, a me nā microplastics.
5. Ka nānā ʻana i nā ʻano e ʻike ai i ka piʻi ʻana o ka haumia a i ʻole ka holomua o nā papahana kaohi.
Me kēia ʻano hana, loiloi ʻia ka maikaʻi o ka wai kai ma ke ʻano kūʻokoʻa a hiki ke hoʻohana ʻia ma ke ʻano he kumu no ka hoʻokumu ʻana i nā kulekele.
Ka hopena
Hoʻoholo ʻia ka maikaʻi o ka wai kai e ka hui pū ʻana o nā ʻano kino, kemika, a me nā mea olaola e hōʻike ana aia nā wai i ke kūlana kaulike, palekana no nā biota, a kūpono no nā hana kanaka e like me kā lākou hoʻohana i manaʻo ʻia. ʻO ka mahana kūpono a me ka paʻakai, ka turbidity haʻahaʻa, ka pH paʻa, ka DO lawa, ka nui o nā meaʻai, ka liʻiliʻi o ka aila a me nā metala kaumaha, a me nā pae haʻahaʻa o nā bacteria hōʻailona he mau kumu koʻikoʻi i ka loiloi. Eia kekahi, ʻo nā ʻōkuhi kaiaola e like me ke olakino o nā ʻalā koʻa, nā moena mauʻu kai, a me ke ʻano like ʻole o nā biota e hāʻawi i kahi kiʻi piha o nā kūlana kaiapuni. Hana ʻia ka loiloi maikaʻi loa ma o ka nānā mau ʻana ma muli o nā kūlana maikaʻi a me ka nānā ʻana i nā ʻano, i hiki ke kuhikuhi ʻia a hoʻomau ʻia nā hana palekana a me ka hoʻokele kai.
