Investigating the 2017 Erratic Fishkill Episode in the Jhelum River, Kashmir Himalaya
| Autor: | M. I. Rather, Irfan Rashid, Shabir A. Khanday |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Hydrology
010504 meteorology & atmospheric sciences Shizothorax hypoxia Aquatic ecosystem chemical contamination Hypoxia (environmental) Context (language use) 010501 environmental sciences 01 natural sciences River water water quality Environmental pollution TD172-193.5 Skin texture Skin color Environmental science Water quality Neutral ph 0105 earth and related environmental sciences fishkill |
| Zdroj: | Pollutants Volume 1 Issue 2 Pages 8-94 Pollutants, Vol 1, Iss 8, Pp 87-94 (2021) |
| ISSN: | 2673-4672 |
| DOI: | 10.3390/pollutants1020008 |
| Popis: | Globally, the frequency of fishkill episodes is increasing, owing to natural and human-induced modification of aquatic ecosystems. A massive fishkill took place on 22 October 2017 along an approximately 1.5 km stretch of the Jhelum River in Srinagar City, India. Thousands of fish died during this specific event, not lasting more than three hours, creating chaos and panic among the local population and government circles. In this context, affected fish were assessed for three morphological parameters, which include skin color, eye appearance, and skin texture. To back our findings, three critical water-quality parameters, including pH, water temperature, and dissolved oxygen essential for the survival of fishes were assessed in the affected river stretch. This study assumes importance given that water-quality observation stations for monitoring the health of the Jhelum River are lacking in the highly urbanized Srinagar City. The morphological examination of fish samples revealed discoloration, bulging eyes, and rough skin texture, indicating chemical contamination of waters in the affected river stretch. The water quality analysis revealed neutral pH (7.2), normal temperature (15.6 °C), and mildly depleted dissolved oxygen (6 mg L−1) levels. While the morphological examination of the affected fish indicated chemical contamination, the physicochemical parameters exhibited a typical scenario of river water. For avoiding any such further incident and to precisely ascertain the cause of such fishkill episodes in future, it is suggested that a few continuous water-quality monitoring sites along Jhelum River should be set up, supplemented with robust ecological modeling simulations. |
| Databáze: | OpenAIRE |
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