Discuss the favorable conditions required for the growth of coral reefs and explain the causes of coral bleaching | favorable conditions for coral reefs UPSC

Question. 

Discuss the favorable conditions required for the growth of coral reefs and explain the causes of coral bleaching. ( 63rd BPSC, 2019)

>

Answer.

Coral reefs are one type of bio landforms in the ocean or it is one type of beautiful and colorful marine ecosystem. Coral reefs are the work of many types of small coral animals such as coral polyps, shell-forming creatures, calcareous algae,  and other marine organisms. 

The following are favorable conditions required for the growth of coral reefs in the ocean:

• Ocean water temperature should be between 23 to 25 degrees centigrade with some tolerance variation.
• The average salinity should be between 27 to 40 ppm.
• Required shallow water and depth of ocean water should not be more than 200 meters. The favorable depth is 50 m to 200 m.
• Ocean water must be Mud free or sedimentation-free.
• Required nearly stable water.

Cause of coral bleaching:

• When algae (the color provider of coral) left the coral polyps, polyps become white; this phenomenon is called coral bleaching.
• The following are causes of coral bleaching:
• The rise in seawater temperature[ climate change]
• Ocean acidification[ acid rain]
• Pollution in the ocean[ human activities]
• Increase of sedimentation in the ocean water[ river siltation caused by deforestation and unscientific mining].

You may like also;

• मूंग चट्टानों की वृद्धि के लिए अपेक्षित अनुकूल स्थितियों की चर्चा कीजिये और मूंगों के विरंगिकरण के कारणों पर प्रकाश डालिये।

• Tweet
• Share
• Share
• Share
• Share

Related Post

• भारत मे योजना की इकाई के रूप में जनपद के गुणों और अवगुणों की सोदाहरण व्याख्या कीजिये। प्रश्न। भारत मे योजना की इकाई के रूप में जनपद के गुणों और अवगुणों की सोदाहरण व्याख्या कीजिये।&
• भारत के भू-वैज्ञानिक इतिहास का युग, तंत्र , और समन्धित भू-स्वरूप, चट्टान, और खनिजों के सन्दर्भ में , उदाहरण सहित संक्षेप में उल्लेख कीजिये।  प्रश्न। भारत के भू-वैज्ञानिक इतिहास का युग, तंत्र , और समन्धित भू-स्वरूप, चट्टान, और खनि
• Explain the ecological aspects of temperate grassland biomes| temperate grassland biomes BPSCQuestion.Explain the ecological aspects of temperate grassland biomes. ( 63rd BPSC, 2019)
• What are the recent measures taken to conserve water resources to meet the needs of agriculture and rural settlements  Question.What are the recent measures taken to conserve water resources to meet the nee