Transcript Stunning Seashells

Title: Stunning Seashells
Theme: Seashells of the
Pacific
Presented by
Rachel Urbano
WWIDEA Cyber
Science Fair
2007
Collection
Gastropods
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Name: Money Cowry
From: White Beach, Okinawa, Japan
Collected When: March 16, 2007
Collected By: Rachel Urbano
Size: ¾ - 1 in.
Name: Tiger Cowry
From: Honolulu, Hawaii
Collected When: June 2005
Collected By: Rachel Urbano
Size: 3 in.
Juvenile Cowries
From: White Beach, Okinawa, Japan
Collected When: March 16, 2007
Collected By: Rachel Urbano
Size: ¼ - 1 ½ in.
Various Cowries
From: White Beach, Okinawa, Japan
Collected When: March 16, 2007
Collected By: Rachel Urbano
Size: 1 – 2 ½ in.
Gastropods
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Name: Mottled Top
From: White Beach, Okinawa, Japan
Collected When: March 16, 2007
Collected By: Rachel Urbano
Size: ¼ - ½ in
Name: Common Button Top
From: Miss Veedol Beach, Misawa, Japan
Collected When: March 23, 2007
Collected By: Rachel Urbano
Size: ¼ - 1 in.
Name: Cone Shaped Top
From: White Beach, Okinawa, Japan
Collected When: March 16, 2007
Collected By: Rachel Urbano
Size: ¼ - 1 ¾ in.
Various Top Shells
From: White Beach, Okinawa, Japan
Collected When: March 16, 2007
Collected By: Rachel Urbano
Size: 1 – 1 ¼ in.
Gastropods
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Name: Hebrew Cone
From: White Beach, Okinawa, Japan
Collected When: March 16, 2007
Collected By: Rachel Urbano
Size: ¾ - 1 in.
Name: Tessellate Cone
From: White Beach, Okinawa, Japan
Collected When: March 16, 2007
Collected By: Rachel Urbano
Size: 1 ½ - 2 in.
Various Cone Shells
From: White Beach, Okinawa, Japan
Collected When: March16, 2007
Collected By: Rachel Urbano
Size: ¼ - 2 in.
Moon Shells
From: Miss Veedol Beach, Misawa, Japan
Collected When: June 2006
Collected By: Rachel Urbano
Size: ¾ - 2 in.
Labels
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Other Moon Shells
From: White Beach, Okinawa, Japan
Collected When: March 16, 2007
Collected By: Rachel Urbano
Size: ¾ - 1 in.
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Nerites
From: White Beach, Okinawa, Japan and Santa
Barbara, California, USA
Collected When: April 2003 (California) and March
16, 2007 (Okinawa)
Collected By: Rachel Urbano
Size: ½ - 1 ½ in.
Limpets
From: Santa Barbara, California, USA and Miss
Veedol Beach, Misawa, Japan
Collected When: April 2003 (California) and March
16, 2007 (Okinawa)
Collected By: Rachel Urbano
Size: ¾ - 1 in.
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Velvety Buccinum Shell
From: Miss Veedol Beach, Misawa, Japan
Collected When: June 2006
Collected By: Rachel Urbano
Size: 2 in.
Murex Shell
From: Honolulu, Hawaii
Collected When: June 2005
Collected By: Rachel Urbano
Size: 3 ½ in.
Bubble Shell
From: Miss Veedol Beach. Misawa, Japan
Collected When: June 2006
Collected By: Rachel Urbano
Size: 1 ¼ in.
Tower Screw Shell
From: Honolulu, Hawaii
Collected When: June 2005
Collected By: Rachel Urbano
Size: 3 ½ in.
Gastropods
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Name: Red Abalone
From: Santa Barbara, California, USA
Collected When: April 2003
Collected By: Rachel Urbano
Size: 4 in.
Other Abalone
From: Santa Barbara, California, USA
Collected When: April 2003
Collected By: Rachel Urbano
Size: 3 in.
…More Abalone
From: Miss Veedol Beach, Misawa, Japan
Collected When: June 2006
Collected By: Rachel Urbano
Size: 2 ¼ - 3 in.
Glans Nassa
From: White Beach, Okinawa, Japan
Collected When: March 16, 2007
Collected By: Rachel Urbano
Size: 1 ¼ in.
Labels
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Name: Purple Dwarf Olive Shell
From: Santa Barbara, California, USA
Collected When: April 2003
Collected By: Rachel Urbano
Size: ¾ - 1 in.
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Latirus Shells
From: White Beach, Okinawa, Japan and
Miss Veedol Beach, Misawa, Japan
Collected When: March 16, 2007 (Okinawa) and
June 2006 (Miss Veedol)
Collected By: Rachel Urbano
Size: ¾ - 1 ¼ in.
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Triton Shell
From: White Beach, Okinawa, Japan
Collected When: March 16, 2007
Collected By: Rachel Urbano
Size: 1 ½ in.
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Convoluted False Trition
From: White Beach, Okinawa, Japan
Collected When: March 16, 2007
Collected By: Rachel Urbano
Size: 1 ¼ in.
Spindle Shell
From: Honolulu, Hawaii
Collected When: June 2005
Collected By: Rachel Urbano
Size:
Changeable Conch
From: White Beach, Okinawa, Japan
Collected When: March 16, 2007
Collected By: Rachel Urbano
Size: 1 in.
Gastropods
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Petrified Seashells
From: Miss Veedol
Beach, Misawa, Japan
Collected When: June
2006
Collected By: Rachel
Urbano
Size: 2 ¼ and 4 in.
Bivalves
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Scallops
From: Miss Veedol Beach, Misawa,
Japan and Santa Barbara,
California, USA
Collected When: June 2006 (Miss
Veedol) and April 2003 (Santa
Barbara)
Collected By: Rachel Urbano
Size: 1 ½ - 5 ½ in.
Cockle Shells
From: Santa Barbara, California,
USA
Collected When: April 2003
Collected By: Rachel Urbano
Size: ¾ - 1 ¼ in.
Bivalves
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Surf Shells
From: Miss Veedol
Beach, Misawa, Japan
Collected When: June
2006
Collected By: Rachel
Urbano
Size: 1 – 4 ½ in.
Bivalves
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Oyster Shells
From: Miss Veedol Beach, Misawa,
Japan
Collected When: June 2006
Collected By: Rachel Urbano
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Size: 2 – 2 ½ in.
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Muscle Shells
From: Miss Veedol Beach, Misawa,
Japan
Collected When: June 2006
Collected By: Rachel Urbano
Size: 1 ½ - 2 ¾ in.
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Interpretation
 Seashells
 Gastropod
 Bivalve
Seashells
Seashells
Seashells
Seashells are the exoskeletons of marine organisms. They are mainly
made of calcium carbonate, but can also be composed of nacre (more
commonly known as mother of pearl), chitin, bone, cartilage, or silica. A
seashell is essentially the secretion of a marine animal from the classes of
Gastropoda, Bivalvia, Scaphopoda, Polyplacophora, Monoplacophora,
and Cephalopoda in the phylum Mollusca. The shell grows with the
animal it houses, and if the animal goes through any injuries or harsh
conditions it will often be reflected on the seashell. Once the animal dies
the shell usually outlasts the animal for many, many years.
Gastropod Seashells
Gastropod shells form as a coil around an
imaginary axis. These shells grow around the
open end of a tube, and coils or wraps around
itself in order to avoid a bulky, long tube.
Another name for these shells is univalve
because it is in one piece. Gastropods can vary greatly
in size and shape from shells shaped like pears or
clubs to irregular shapes.
Bivalve Seashells
Bivalve animals are solely aquatic and they a
comprised of two parts, hence the name
bivalve. Instead of coiling around like a gastropod
these shells grow outward in one direction. The animal
adds growth to the edges of the valves. The valves are
connected by a ligament. Like Gastropods these
shells vary in appearance.
Method of Collecting
The method by which I obtained my collection
was by casual beachcombing. I walked the
beaches not looking for an exact specimen, but
keeping an eye out for any interesting shells.
Sources of Information
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Books
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S. Peter Dance, Shells, Dorling Kindersly Ltd.,
London, 1992
Web sites
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www.wikipedia.org
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http://en.wikipedia.org/wiki/Seashell
http://en.wikipedia.org/wiki/Gastropods
http://en.wikipedia.org/wiki/Bivalve
Acknowledgements
I thank my mother for taking me to the beaches
to collect my specimens and helping me to
identify and organize my shells.