Ọrụ gburugburu ebe obibi nke injinia hydraulic dị mkpa maka ichekwa akụrụngwa azụ. Amara ọsọ mmiri na-emetụta mmụpụta azụ̀ ndị na-ebufe àkwá na-asọgharị. Ọmụmụ ihe a na-achọ ịchọpụta mmetụta nke mkpali ọsọ mmiri na ovarian maturation na ikike antioxidant nke okenye ahịhịa kap (Ctenopharyngodon idellus) site na nnwale ụlọ nyocha iji ghọta usoro ọmụmụ physiological nke na-adabere na nzaghachi nke mmeputakwa eke na-asọpụta gburugburu ebe obibi. Anyị nyochara histology, homonụ mmekọahụ na vitellogenin (VTG) nke ovary, yana transcripts nke mkpụrụ ndụ ihe nketa dị na axis hypothalamus-pituitary-gonad (HPG), yana ọrụ antioxidant nke ovary na imeju na ahịhịa ahịhịa. Nsonaazụ gosiri na ọ bụ ezie na ọ dịghị ihe dị iche iche a na-ahụ anya na njirimara mmepe ovarian nke ahịhịa ahịhịa n'okpuru mkpali ọsọ nke mmiri, estradiol, testosterone, progesterone, 17α,20β-dihydroxy-4-pregnen-3-one (17α,20β-DHP), na VTG na-ebuli elu, bụ nke metụtara transgulation transgulation HP. A na-ebuli ọkwa okwu mkpụrụ ndụ ihe nketa (gnrh2, fshβ, lhβ, cgα, hsd20b, hsd17b3, na vtg) na axis HPG nke ukwuu n'okpuru mkpali ngwa ngwa mmiri, ebe ndị nke hsd3b1, cyp17a1, cyp19a1a, hsd, na 3igf1. Na mgbakwunye, mkpali ọsọ mmiri kwesịrị ekwesị nwere ike ịkwalite ọnọdụ ahụike ahụ site na ịbawanye ọrụ nke enzymes antioxidant na ovary na imeju. Nsonaazụ nke ọmụmụ a na-enye ihe ọmụma bụ isi na nkwado data maka ọrụ gburugburu ebe obibi nke ọrụ ike mmiri na mweghachi gburugburu ebe obibi osimiri.
Okwu mmalite
The Three Gorges Dam (TGD), nke dị n'etiti etiti osimiri Yangtze, bụ ọrụ ike mmiri kacha ukwuu n'ụwa ma na-arụ ọrụ dị oke mkpa n'ịkwado na irigbu ike osimiri ahụ (Tang et al., 2016). Agbanyeghị, ọrụ TGD abụghị naanị na-agbanwe usoro mmiri mmiri nke osimiri kamakwa ọ na-eyikwa ebe obibi mmiri egwu ma elu na mgbada nke ebe mmiri ahụ, si otú a na-enye aka na mbibi nke gburugburu ebe obibi osimiri (Zhang et al., 2021). N'ụzọ zuru ezu, ụkpụrụ nke reservoirs homogenizes usoro eruba nke osimiri na-ebelata ma ọ bụ na-ewepụ eke iju mmiri ọnụ ọnụ, si otú na-eduga mbelata azụ azụ (She et al., 2023).
O yikarịrị ka ihe dị iche iche gburugburu ebe obibi na-emetụta ọrụ ịkpa azụ azụ, gụnyere ọsọ mmiri, okpomọkụ mmiri, na ikuku oxygen gbazere. Site na imetụta njikọ homonụ na nzuzo, ihe ndị a gburugburu ebe obibi na-emetụta mmepe gonadal nke azụ (Liu et al., 2021). Karịsịa, amatala ọsọ mmiri ka ọ na-emetụta mpụta azụ nke na-ebuga akwa na-asọgharị n'osimiri (Chen et al., 2021a). Iji belata mmetụta ọjọọ nke arụ ọrụ mmiri mmiri na ịsa azụ, ọ dị mkpa iji guzobe usoro eco-hydrological kpọmkwem iji kpalie ịsa azụ (Wang et al., 2020).
Nnukwu carps anọ ndị China (FMCC), gụnyere Black Carp (Mylopharyngodon piceus), ahịhịa ahịhịa (Ctenopharyngodon idellus), carp silver (Hypophthalmichthys molitrix), na bighead carp (Hypophthalmichthys nobilis), bụ ndị na-enwe mmetụta nke ukwuu na usoro mmiri mmiri, na-anọchite anya ihe kacha mkpa na China. Onu ogugu FMCC ga-akwaga n'ebe a na-aputa ihe wee malite itolite na nzaghachi nke oke mmiri na-erute site na Mach ruo June, ebe owuwu na oru nke TGD na-agbanwe usoro uda mmiri nke okike ma gbochie mbuga azụ (Zhang et al., 2023). Ya mere, itinye ntinye gburugburu ebe obibi n'ime atụmatụ ọrụ nke TGD ga-abụ ihe mbelata iji kpuchido mpụta nke FMCC. Egosiputara na imejuputa idei mmiri nke mmadụ mere ka ọ bụrụ akụkụ nke ọrụ TGD na-akwalite ọganihu ọmụmụ nke FMCC na mpaghara mgbada (Xiao et al., 2022). Kemgbe afọ 2011, ahaziela ọtụtụ mbọ iji kwalite omume ịkpa ike nke FMCC iji belata ọdịda FMCC sitere na Osimiri Yangtze. Achọpụtara na ọsọ mmiri nke na-ebute mmụpụta FMCC sitere na 1.11 ruo 1.49 m/s (Cao et al., 2022), yana ezigbo ọsọ ọsọ nke 1.31 m / s ka amapụtara maka mpụta nke FMCC na osimiri (Chen et al., 2021a). Ọ bụ ezie na ọsọ mmiri na-arụ ọrụ dị oke mkpa na mmeputakwa nke FMCC, enwere ụkọ nyocha pụtara ìhè na usoro physiological nke na-akpata nzaghachi nke mmeputakwa eke sitere na gburugburu ebe obibi.
Oge nzipu: Ọgọst-05-2024