Presentation is loading. Please wait.

Presentation is loading. Please wait.

General Oceanography Chapter 10_2 Young-Heon Jo Coastal Ocean

Published byМилован Беговић Modified over 5 years ago

Similar presentations

Presentation on theme: "General Oceanography Chapter 10_2 Young-Heon Jo Coastal Ocean"— Presentation transcript:

1 General Oceanography Chapter 10_2 Young-Heon Jo Coastal Ocean
November 21, 2013 Young-Heon Jo

2 Chapter Overview Coastal waters support about 95% of the total biomass in the oceans. Most commercial fish are caught within 320 km (200 miles) from shore. Coast waters are important also for shipping, oil and gas production, and recreation. Pollution is a major issue.

3 Ocean Ownership In 1609 the sea was free to all (mare liberum).
Assumed fish resources are inexhaustible In 1702 the territorial sea area was declared under the coastal nation’s sovereignty (3 nautical miles from shore). Distance of cannon shot

4 United Nations Law of Sea
United Nations Conference on the Law of the Sea 1958 1960 1973–1982 Treaties have undergone revisions.

5 Law of the Sea Coastal nations jurisdiction
National sovereignty extends 12 nautical miles Exclusive Economic Zone (EEZ) 200 nautical miles (370 km) from land (mineral and fishing resources) Right of free passage for ships Open ocean mining regulated by International Seabed Authority United Nations arbitrates disputes

6 United States EEZ

7 World’s Largest Oil Spills

8 Petroleum Blowout of undersea oil wells Ixtoc #1 Mexico spill
World’s largest spill from well

9 DDT Decline in bird populations Thin eggshells
Long Island osprey California brown pelican DDT banned in United States in 1972 Rebound of some marine bird populations

10 Mercury and Minamata Disease
Methyl mercury toxic to most living organisms Chemical plant in Minamata Bay, Japan, released mercury in 1938 First reported ecological changes in 1950 By 1953 humans poisoned Neurological disorder

11 Non-Point-Source Pollution and Trash
Not from underwater pipelines For example, from storm drains Trash Pesticides and fertilizers Road oil

12 Ocean Dumping Law

13 Plastics Vast majority of marine debris
80% of marine debris from land sources Most of it plastic Not readily biodegradable Entangle fish, marine mammals, and birds Plastic bags choke turtles Mistake for jellyfish Some plastics attract poisons, e.g., DDT, PCBs

14 Effects of Plastic Marine Trash

15 Plastics in the Ocean Floating plastics photodegrade
Break into smaller pieces Marine plastic particles increasing significantly Regions of floating trash Eastern Pacific Garbage Patch

16 Biological Pollution: Non-Native Species
Originate elsewhere, introduced by humans intentionally or accidentally Outcompete and dominate native populations Invasive species cause extensive damage annually

Download ppt "General Oceanography Chapter 10_2 Young-Heon Jo Coastal Ocean"

Similar presentations

Beth Roland Eighth Grade Science Team 5 Mountaineers

Beth Roland Eighth Grade Science Team 5 Mountaineers
By: Jamie Naumann.  Scientists estimate this large garbage patch is twice the size of Texas!  The United Nations Environment Program estimated in 2006.

By: Jamie Naumann.  Scientists estimate this large garbage patch is twice the size of Texas!  The United Nations Environment Program estimated in 2006.
© 2011 Pearson Education, Inc. CHAPTER 11 The Coastal Ocean.

© 2011 Pearson Education, Inc. CHAPTER 11 The Coastal Ocean.
Essentials of Oceanography

Essentials of Oceanography
© 2011 Pearson Education, Inc. Marine Pollution Pollution – Any harmful substance or energy put into the oceans by humans Harmful to living organisms –Standard.

© 2011 Pearson Education, Inc. Marine Pollution Pollution – Any harmful substance or energy put into the oceans by humans Harmful to living organisms –Standard.
© 2011 Pearson Education, Inc. Marine Pollution Marine pollution.

© 2011 Pearson Education, Inc. Marine Pollution Marine pollution.
Introduction to Marine Environmental Issues Natural and Man-made Marine Pollutants Impact of Disturbed Habitats on Organisms Prosperity Human Activity.

Introduction to Marine Environmental Issues Natural and Man-made Marine Pollutants Impact of Disturbed Habitats on Organisms Prosperity Human Activity.
Chapter 17: Marine Resources. Laws and regulation Mare Liberum Territorial sea 1958 to 1982 UN Law of the Sea Ratified in 1993 International law.

Chapter 17: Marine Resources. Laws and regulation Mare Liberum Territorial sea 1958 to 1982 UN Law of the Sea Ratified in 1993 International law.
I make an effort to conserve water. 1.Yes 2.No 3.Sometimes.

I make an effort to conserve water. 1.Yes 2.No 3.Sometimes.
Facts on Ocean Pollution Over 80% of the pollution in the ocean is runoff from the Land Almost 90% of all floating materials in the ocean are plastic.

Facts on Ocean Pollution Over 80% of the pollution in the ocean is runoff from the Land Almost 90% of all floating materials in the ocean are plastic.
Ocean Pollution. Think about it…. How could ocean pollution affect your life? Think of ways you contribute to ocean pollution in your daily life.

Ocean Pollution. Think about it…. How could ocean pollution affect your life? Think of ways you contribute to ocean pollution in your daily life.
Our community of 20 families live in a coastal area and are very poor. They depend of fish for money and food, and have found it harder and harder recently,

Our community of 20 families live in a coastal area and are very poor. They depend of fish for money and food, and have found it harder and harder recently,
Marine Pollution. Marine pollution threatens resources Even into the mid-20th century, coastal U.S. cities dumped trash and untreated sewage along their.

Marine Pollution. Marine pollution threatens resources Even into the mid-20th century, coastal U.S. cities dumped trash and untreated sewage along their.
Marine Pollution.

Marine Pollution.
SOVEREIGNTY: THE AUTHORITY OF A STATE TO GOVERN ITS PEOPLE AND LAND What determines sovereignty????

SOVEREIGNTY: THE AUTHORITY OF A STATE TO GOVERN ITS PEOPLE AND LAND What determines sovereignty????
Water Ecosystems. WATERSHED defined as a geographic area of land in which precipitation drains to a common point on a stream, river, pond, lake or other.

Water Ecosystems. WATERSHED defined as a geographic area of land in which precipitation drains to a common point on a stream, river, pond, lake or other.
Water Pollution Part I. Sources - General Point Source: when a harmful substance is released directly into a body of water Usually monitored and regulated.

Water Pollution Part I. Sources - General Point Source: when a harmful substance is released directly into a body of water Usually monitored and regulated.
The Coastal Ocean Essentials of Oceanography. Bellwork: 09/14/2011 List as many different types of bodies of water that you can think of:

The Coastal Ocean Essentials of Oceanography. Bellwork: 09/14/2011 List as many different types of bodies of water that you can think of:
Coastal Areas — Why do we care?. Popular More than 60% of world’s population lives within 60 miles of the coast.

Coastal Areas — Why do we care?. Popular More than 60% of world’s population lives within 60 miles of the coast.
“Safety in the North”, Alta 25-27 August 2010 Svalbard’s Maritime Zones The (lack of) jurisdiction of Norway over foreign maritime activities in the waters.

“Safety in the North”, Alta August 2010 Svalbard’s Maritime Zones The (lack of) jurisdiction of Norway over foreign maritime activities in the waters.

Similar presentations

Ads by Google