Roadmap for Answer Writing 1. Introduction Define oceanic salinity and state its average level (35 parts per thousand). Highlight the importance of understanding salinity variations and their impacts. 2. Body A. Reasons for Oceanic Salinity Variations Precipitation Fact: High precipitation regions have lower salinity due to freshwater ...
According to International Seabed Authority (ISA) - "Deep sea mining refers to the exploration and exploitation of mineral resources found on or beneath the seabed in the area, beyond the limits of national jurisdiction ". Effects of Deep sea mining on marine environments and ecosystem - It will cauRead more
According to International Seabed Authority (ISA) – “Deep sea mining refers to the exploration and exploitation of mineral resources found on or beneath the seabed in the area, beyond the limits of national jurisdiction “.
Effects of Deep sea mining on marine environments and ecosystem –
- It will cause damage to fragile ecosystem and loss of biodiversity example -Great Barrier Reef .
- It will create an impact on migration patterns and feeding habits example -Anglerfish,Viperfish .
- It disrupt the nutrient cycling and primary production example -Clarion Clipperton Zone (Pacific Ocean ) .
- Increased risk for landslides and turbidity.
- Deep sea mining machines causes noise pollution by producing various sounds at different depths for upto 24 hours a day that interfere with species ability to communicate and result in behaviour change.
- Heavy metals introduced into the ecosystem by deep sea mining could contaminate sea food .
- It releases toxins and stored carbon into the ocean .
- It causes water pollution by wastewater discharge and sedimented plumes .
Deep sea mining poses a significant risk to marine ecosystem with potential long term and irreversible consequences.So it is crucial to balance economic benifits with environmental and social responsibility.
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Model Answer Introduction Oceanic salinity refers to the concentration of salt in seawater, which varies across different regions of the world's oceans due to several factors. The average salinity is about 35 parts per thousand. Understanding these variations is crucial, as they have significant impRead more
Model Answer
Introduction
Oceanic salinity refers to the concentration of salt in seawater, which varies across different regions of the world’s oceans due to several factors. The average salinity is about 35 parts per thousand. Understanding these variations is crucial, as they have significant impacts on ocean circulation, marine ecosystems, and climate patterns.
Body
Reasons for Oceanic Salinity Variations
Multi-Dimensional Effects of Oceanic Salinity Variations
Conclusion
The variations in oceanic salinity have profound implications, influencing ocean circulation, climate patterns, and marine biodiversity. Understanding these factors is critical for predicting and managing the impacts of climate change on marine ecosystems and human communities.
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