Mutuwa de peces A cikin halittun ruwa al'amari ne da ke damun masana kimiyya da masu sha'awar aquarium. Rashin oxygen a cikin ruwa yana daya daga cikin manyan abubuwan da ke shafar rayuwar wadannan kwayoyin halitta, suna haifar da sakamako m a cikin koguna, tabkuna da aquariums. A cikin wannan labarin, za mu yi nazari dalla-dalla dalilin da ya sa wannan matsalar ke faruwa, menene dalilanta, yadda za a gano rashin iskar oxygen a cikin kifi da kuma hanyoyin da za a bi don guje wa wannan bala'i. muhalli.
Me yasa rashin iskar oxygen ke kashe kifi?
Kifi, kamar sauran halittun ruwa, sun dogara da oxygen narkar da cikin ruwa don numfashi. Ba kamar dabbobi masu shayarwa ba, waɗannan dabbobin suna samun iskar oxygen daga ruwa ta cikin gill ɗinsu. Lokacin da narkar da matakan oxygen ya ragu zuwa matakai masu mahimmanci, kifi ya fara nuna alamun shaƙa, wanda zai iya haifar da yawan mutuwar nau'in ruwa.
Babban abubuwan da ke haifar da rashin iskar oxygen a cikin ruwa
Akwai abubuwa da yawa waɗanda zasu iya rage adadin iskar oxygen da ake samu a cikin ruwa. A ƙasa muna dalla-dalla waɗanda suka fi dacewa:
- Gurbacewar ruwa: Sharar gida na masana'antu da aikin gona yana ƙara yawan kwayoyin halitta da ke cinye iskar oxygen yayin da yake rubewa.
- Algae Bloom: Algae da ba a sarrafa su ba (eutrophication) yana toshe haske kuma yana cinye iskar oxygen da dare.
- Hawan zafin jiki: Ruwan zafi yana da ƙaramin ƙarfi don riƙe narkar da iskar oxygen.
- Rashin kewayawar ruwa: A cikin tafkuna masu tsayi ko aquariums ba tare da tacewa mai kyau ba, iskar oxygen ba a rarraba daidai gwargwado.
- Wuce gona da iri de peces a cikin akwatin kifaye: Babban lamba de peces yana ƙara yawan amfani da iskar oxygen da rashin daidaita yanayin yanayin.
Yadda ake gano rashin iskar oxygen a cikin kifi
Daya daga cikin alamun farko na rashin oxygen A cikin kifi shine canjin halayensu. Wasu alamun gargaÉ—i sun haÉ—a da:
- Yin iyo ko rashin jin daÉ—i: Kifi na iya yin iyo cikin kuskure ko kuma ya bayyana maras kyau.
- Ruwan saman: Idan kifi akai-akai yana zuwa sama don neman oxygen, alama ce ta hypoxia a cikin ruwa.
- Yawan haki: Ƙara yawan buɗewa da rufewa na gills yana nuna cewa suna ƙoƙarin kamawa oxygen.
- Kodi ko jajayen launi akan gills: Yana iya nuna damuwa mai tsanani saboda rashin oxygen.
Yadda za a hana iskar oxygen a cikin ruwa
Don gujewa mutuwa de peces don rashin oxygen, yana da mahimmanci a yi amfani da wasu matakan sarrafawa da rigakafin:
- Shigar da tsarin samun iska: Masu rarraba iska da famfunan ruwa suna taimakawa oxygenate ruwa a cikin aquariums da tafkunan.
- Kula da ingancin ruwa: Yi canje-canjen ruwa na lokaci-lokaci kuma guje wa haɓakar sharar gida kwayoyin.
- Daidaita yawan jama'a de peces: Kada a cika yawan kifayen kifaye domin kowane kifi ya samu isashensa oxygen samuwa.
- Sarrafa zafin ruwa: A cikin lokutan dumi, ana iya amfani da magoya baya ko masu sanyaya ruwa.
- A guji yawan amfani da takin zamani: Yawan takin zamani na iya haifar da algae blooms.
Tasirin canjin yanayi akan iskar oxygen na ruwa
dumamar yanayi kuma yana tasiri matakan oxygen cikin ruwa. Saboda yanayin zafi mai yawa, tekuna da ruwa mai tsabta sun ga matakan ruwa sun ragu. oxygen narkar da, shafi marine bioversity. Bincike ya nuna cewa wasu nau'ikan suna ƙaura zuwa ruwan sanyi don neman mafi kyau yanayi, wanda ke canza yanayin muhalli da sarkar abinci.
Sakamakon muhalli na hypoxia na ruwa
Lokacin da matakan oxygen raguwa sosai, ana haifar da mummunan tasiri a cikin yanayin halittu, kamar:
- Yawan mace-mace de peces: Rashin numfashi da kyau, kifin ya mutu da sauri.
- Rashin daidaituwa a cikin dabbobin ruwa: An kuma shafa mafarauta da jinsunan da suka dogara da kifi don abinci.
- Yaduwar kwayoyin cutar anaerobic: Rashin oxygen Yana haɓaka bayyanar ƙwayoyin cuta waɗanda ke lalata kwayoyin halitta kuma suna sakin mahadi masu guba irin su hydrogen sulfide.
Rashin oxygen cikin ruwa matsala ce mai girman tasirin muhalli da tattalin arziki. A cikin duka aquariums da yanayin halittu, yana da mahimmanci don ɗaukar matakan guje wa wannan matsala. Tare da ingantaccen tsarin kula da ruwa, sarrafa gurɓataccen gurɓataccen iska, da amfani da tsarin iska, za a iya kiyaye rayuwar ruwa da kuma tabbatar da ingantaccen yanayi na kifi.