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Chesapeake Bay Research Project

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Blue Crabs or 'Callinectes Sapidus' are ten-legged crustaceans. ... Our bay has been the largest producer of Blue Crabs in the country. ... – PowerPoint PPT presentation

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Title: Chesapeake Bay Research Project


1
Chesapeake Bay Research Project
2
May 5, 2005 By Northside Middle School
StudentsAdam Foster, Anthony Phillips April
SmithemanGuidance provided by www.rkpuma.com
3
Table of Contents
  • History
  • Geography
  • Flora
  • Fauna
  • Industry
  • Recreation
  • Problems/Threats
  • Solutions

4
History of the Bay
  • The bay was formed from natural events during the
    last ice age.
  • The first to enter the bay was Vicente Gonzalez.
  • John Smith was the first to thoroughly explore
    the bay.

5
History of the Bay (cont.)
  • The bay has been used for fishing for thousands
    of years.
  • The word Chesapeake means in Indian, Great
    Shellfish Bay.
  • You can catch Rockfish, Bluefish, Flounder along
    with many other fish species.

6
Bay Geography
  • The Chesapeake covers 64,000 square miles.
  • Tributary rivers include the Susquehanna,
    Patuxent, Potomac, Rappahanock, York and James.
  • Chesapeake waters flow into the Atlantic Ocean at
    Hampton Roads at the Bay's southeastern end.

7
Bay Geography (cont.)
  • The length of the Bay is about189 miles.
  • It is about 4 miles wide near Annapolis,
    Maryland.
  • It is 30 miles at its widest, near the mouth of
    the Potomac River.

8
  • Bay Flora
  • Sea Grass
  • Phytoplankton
  • Sea lettuce

9
Plant 1
  • Bay grasses improve water quality and provide
    food and shelter for animals.
  • 16 species of underwater grass are found in the
    Bay.
  • 64,000 acres of grasses were in the Bay in 2003,
    much less than the year before.

10
Plant 2
  • Algae (Phytoplankton) are small, microscopic
    plants. 
  • They are photosynthetic, and produce their own
    food from sunlight. 
  • Phytoplankton are a primary producer of the
    oxygen we breathe. 

11
Plant 3
  • Sea Lettuce (Seaweed) are found in brackish and
    higher salinity waters of the Bay.
  • When seaweed over-grows, it can reduce oxygen for
    other organisms.
  • It grows in waters that are nutrient-rich or
    polluted.

12
Endangered Flora Species
  1. American Lotus
  2. Tawny Cottongrass

13
  • Bay Fauna
  • Blue Crabs
  • Striped Bass
  • Blue Fish

14
Animal 1
  • Blue Crabs or Callinectes Sapidus are
    ten-legged crustaceans.
  • It walks sideways and defends itself with sharp
    pincer claws.
  • The crab's favorite food are bivalves, but when
    scarce, cannibalism increases.

15
Animal 2
  • Rockfish, Striped Bass or Morone Saxatilis
    hatch 29 - 80 hours after fertilization.
  • They are light green, olive, steel blue, brown or
    black.
  • They get a name from the seven or eight dark,
    stripes along their sides.

16
Animal 3
  • Bluefish or Pomatomus Saltatrix or Snapper are
    found all along the east coast.
  • They migrate north in the spring and and south in
    the fall.
  • They travel in groups or schools.

17
Endangered Fauna Species
  1. Marine Turtles
  2. Bald Eagle

18
Bay IndustryBlue CrabsOystersMenhaden
19
Industry 1
  • Our bay has been the largest producer of Blue
    Crabs in the country.
  • Blue Crab harvests have been going down since the
    early 1980s.
  • The reasons are over-harvesting, disease and the
    loss of habitat.

20
Industry 2
  • The Bay Oyster harvests have gone down to less
    than 1 percent of its peak in the 1870s.
  • In 1980, the Bay provided the country with 50 of
    US oysters.
  • The Bay now provides only 1-5 of oysters.

21
Industry 3
  • Menhaden fish are important because they have the
    ability to filter water.
  • There is no quota to limit harvests.
  • Over-fishing for Menhaden is ruining the Bay's
    most valuable resource.

22
Bay Recreational UsesFishingBoatingCamping
23
Recreational Use 1
  • Fishing is a popular recreation on the Bay.
  • It provides hours of fun for millions of people.
  • Tourism is an important industry which provides
    many jobs.

24
Recreational Use 2
  • Boating is also a popular Bay recreation.
  • Boat builders, supplies, sales, marinas,
    charters, and restaurants are all related Bay
    industries.
  • Boat sales are falling.

25
Recreational Use 3
  • Camping is another popular Bay recreation.
  • There are many campsites in Maryland and
    Virginia.
  • Events include shows, festivals and fairs which
    attract visitors, because camping is fun,
    affordable lodging.

26
Bay Problems/ThreatsNatural ThreatsIndustrial/De
velopmental Improper Disposition
27
Problem 1
  • The Bay's pollution is mostly from too many
    nutrients, nitrogen and phosphorus.
  • These elements effect the food chain and
    ecosystem.
  • When the delicate balance is upset, animals and
    plants die.

28
Problem 2
  • Other pollutants are toxic chemicals, air, and
    landscape changes.
  • Wetlands are very fragile, but vital to the
    worlds ecosystem.
  • Industry, property developers and lawmakers dont
    always consider the value of our Bay.

29
Problem 3
  • Sedimentation involves particles carried off land
    and into waterways.
  • Household and lawn care products in drains dont
    help the problem.
  • Improper disposal of auto products also plays a
    part.

30
Bay SolutionsStudyActionAwareness
31
Solution 1
  • Studies for controlling nutrients, nitrogen and
    phosphorus should be made.
  • Laws, use guidelines and monitoring could play a
    bigger part.
  • Education should be key for all who enjoy the Bay.

32
Solution 2
  • Vote for those who consider the Bay, more than
    potential revenue in development of our
    shorelines.
  • Report dumping or activities which threaten your
    Bay community.
  • Your family can increase awareness of materials
    you use everyday.

33
Solution 3
  • Think of our beautiful Bay and continue to
    increase your awareness of possible threats to
    it.
  • Share what you learn with family and friends.
  • Walk on the beach, collect shells, and watch the
    Bay shoreline closely, whenever you can.
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