• 9964432222
  • Mail Us
  • Appointment
  • Locate Us
  • Chat Now
  • Courses
  • Login
  • Register
Manifest IAS
JournalsOfIndia
Manifest Learning Academy
  • Home
  • SNIPPETSfor Prelims
  • ARTICLESfor Mains
  • BROWSEBY SOURCE
  • DOWNLOADS
No Result
View All Result
  • Home
  • SNIPPETSfor Prelims
  • ARTICLESfor Mains
  • BROWSEBY SOURCE
  • DOWNLOADS
No Result
View All Result
JournalsOfIndia
No Result
View All Result
Home Environment

Dead Zone

March 26, 2020
in Environment
Reading Time: 2 mins read
0
514
VIEWS
Share on WhatsAppShare on TelegramShare on Facebook
image_pdfMake PDF
  • Why in news?
    • Scientists from the National Oceanic and Atmospheric Administration (NOAA) and Louisiana State University have predicted that this spring’s record rainfall would produce one of the largest-ever “dead zones” in the Gulf of Mexico.
  • What is a dead zone?
    • Oxygenated “dead zones” occur in waterways wherever algae are overfed by runoff from human activities such as urbanization and agriculture by a phenomenon called eutrophication.
    • Dead zones can be found worldwide.
    • Marine dead zones can be found in the Baltic Sea, Black Sea, off the coast of Oregon, and in the Chesapeake Bay.
    • Dead zones may also be found in lakes, such as Lake Erie.
    • The Gulf of Mexico dead zone is the second largest in the world.
    • What causes the dead zone in the Gulf of Mexico?
    • The dead zone is caused by nutrient enrichment from the Mississippi River, particularly nitrogen and phosphorus which come from major farming states in the Mississippi River Valley.
    • These nutrients enter the river through upstream runoff of fertilizers, soil erosion, animal wastes and sewage.
    • With anthropogenic ally increased nitrogen and phosphorus input, algal blooms develop and the food chain is altered, and dissolved oxygen in the area is depleted.
    • The size of the dead zone fluctuates seasonally, as it is exacerbated by farming practices.
    • It is also affected by weather events such as flooding and hurricanes.
  • Effects
    • Nutrient overloading and algal blooms lead to eutrophication, which has been shown to reduce biomass and biodiversity.
    • Hypoxic water supports fewer organisms and has been linked to massive fish kills in the Black Sea and Gulf of Mexico.
    • As the Gulf of Mexico is a major source area for the seafood industry, the hypoxic zone results in reduced catch of commercial and recreational fisheries, leading to smaller harvests and more expensive seafood, thus impacting fishermen and coastal state economies.

 

image_pdfMake PDF
Tags: Prelims

Related Posts

Forest (Conservation) Rules, 2022

Forest (Conservation) Rules, 2022

July 2, 2022
2022 United Nations Ocean Conference

2022 United Nations Ocean Conference

July 1, 2022
Ban on single use plastics

Ban on single use plastics

July 1, 2022
India Forum for Nature-based Solutions

India Forum for Nature-based Solutions

July 1, 2022
EU’s Nature Restoration Law

EU’s Nature Restoration Law

June 30, 2022
Oceans Great Dying 2.0

Oceans Great Dying 2.0

June 29, 2022
Menar bird village to be declared wetland

Menar bird village to be declared wetland

June 28, 2022
Kerala to have its own Red list of Birds

Kerala to have its own Red list of Birds

June 28, 2022
Global Environment Facility (GEF)

Global Environment Facility (GEF)

June 27, 2022
Spiny Horntail Dragonfly

Spiny Horntail Dragonfly

June 24, 2022
Please login to join discussion

Our Offline Classroom Student

PRELIMS 2021 POLITY QUESTIONS ANALYSED

https://youtu.be/5q8hBcRGhAs

PRELIMS 2021 HISTORY QUESTIONS ANALYSED

https://youtu.be/v0SIZ7SUybg

CONGRATULATIONS TO 2021 TOPPERS !!!

Rank 171 Kumar Shivashish
Rank 250 Sahithya
Rank 263 Sumit Kumar Thakur
Rank 311 Deepak Ramachandra Shet
Rank 455 Ravinandan B M

July 2022
MTWTFSS
 123
45678910
11121314151617
18192021222324
25262728293031
« Jun    

Browse by Category

  • Agriculture
  • Disaster Management
  • Economy
  • Environment
  • Ethics
  • Foreign Affairs
  • Geography
  • Governance
  • History
  • Law & Policy
  • Opinion
  • People in News
  • Places in News
  • Science & Tech
  • Security
  • Society
  • Sports
  • Uncategorized

Browse by Tags

AIR BBC Business Standard CNN Deccan Herald DownToEarth Down to Earth DTE Economic Times ET GS-1 GS-2 GS-3 GS-4 Hindustan Times IE India & the world Indian express India today Indiatoday Kurukshetra LiveMint Mains News Newspaper News Paper PIB PIB & The Hindu pre Prelims PRS India RSTV Science Reporter Survey The Hindu The Hindustan Times The India Express The Indian Express The New Indian Express Times of India TOI TOPPERS UNDP website Wikipedia Yojana
JournalsOfIndia

Our vision is to orient the readers to grasp the facts objectively and analyse critically. In the rush of reaching first to the readers, the websites miss the balanced opinion, which is the need of the hour. We aim to reach the readers with more crispness, preciseness and relevance. We bring the articles in UPSC way for the civil services aspirants and the Wisest Way for general readers.

Categories

  • Agriculture
  • Disaster Management
  • Economy
  • Environment
  • Ethics
  • Foreign Affairs
  • Geography
  • Governance
  • History
  • Law & Policy
  • Opinion
  • People in News
  • Places in News
  • Science & Tech
  • Security
  • Society
  • Sports
  • Uncategorized

Browse by Tag

AIR BBC Business Standard CNN Deccan Herald DownToEarth Down to Earth DTE Economic Times ET GS-1 GS-2 GS-3 GS-4 Hindustan Times IE India & the world Indian express India today Indiatoday Kurukshetra LiveMint Mains News Newspaper News Paper PIB PIB & The Hindu pre Prelims PRS India RSTV Science Reporter Survey The Hindu The Hindustan Times The India Express The Indian Express The New Indian Express Times of India TOI TOPPERS UNDP website Wikipedia Yojana

Newsletter

The most important UPSC news and events of the day.

Get Journals daily newsletter on your inbox.

© 2020 JournalsOfIndia - A free initiative by Manifest Team.

  • Login
  • Sign Up
  • Home
  • SNIPPETS
  • ARTICLES
  • BROWSE
  • DOWNLOADS
No Result
View All Result

© 2020 JournalsOfIndia - A free initiative by Manifest Team.

Welcome Back!

Login to your account below

Forgotten Password? Sign Up

Create New Account!

Fill the forms bellow to register

All fields are required. Log In

Retrieve your password

Please enter your username or email address to reset your password.

Log In