Global iqlim o’zgarishlari sharoitida suv havzalardagi baliqlarning hozirgi holati

Authors

  • Sarvinoz Farxodovna Salimova Buxoro davlat universiteti
  • Hilola Umarqulovna Murodova Buxoro davlat universiteti

Keywords:

Kiprinid, Kit akulasi, ekotizim, oziq moddalar, marjon riflari

Abstract

Baliqlarni barcha suv havzalarida uchratish mumkin. Masalan ko‘llarda, daryolarda, dengizlarda, okeanlarda, suv havzalarida. Bugungi kundagi, hisob-kitoblarga ko‘ra, dunyo bo‘ylab 32000 dan ortiq turli baliq turlari mavjud. Baliqlar orasidagi ularning kattaliklari turlicha bo’ladi. Xususan, eng kichik Kiprinid baliqning uzunligi atigi 7 santimertni tashkil qiladi, eng yiriklari esa Kit akulasi 9 metrdan ortiq uzunlikdagi dunyodagi eng katta baliqlardan biridir. Insonlar tomonidan ovlagan baliqlar miqdori juda hayratlanarli ahvoldadir. Masalan, 2021 yilda taxminan 110 million tonna baliq ovlangan. Odamlarning haddan tashqari baliq ovlashi va dengiz ekotizimini beqarorlashtirishi tobora oydinlashmoqda. O'tgan asrda akulalar kabi yirtqich baliqlar populyatsiyasining uchdan ikki qismidan ko'prog'i ham kamaydi. Umuman olganda, qaysi dengizda bo'lishidan qat'iy nazar, ham biologik xilma-xillik, ham ko'plik kamaygan ekotizim kuzatilmoqda.

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Published

2022-05-31

How to Cite

Salimova, S. F., & Murodova, H. U. (2022). Global iqlim o’zgarishlari sharoitida suv havzalardagi baliqlarning hozirgi holati. Science and Education, 3(5), 174-180. Retrieved from https://openscience.uz/index.php/sciedu/article/view/3354

Issue

Section

Natural Sciences