18 SG: Deep Sea Flashcards
Why does sunlight appearr white
Our visible spectrum is combined, making sun appear white
LIght Color with Longest Wavelength
Red Light
The order of Color based on decreasing wavelengths
red light to blue light
- red, orange, yellow, green, blue
what light penetrates the ocean the deepest
blue light
What light penetrates the least
red light
What is the most common animals color in the twilight zone
black or red
what is the sunlight or euphotic zone
uppermost zone that receives sunlight, photosynthesis takes place and most aquatic life lives here
Twilight Zone or Dysphotic Zone
Very little light where red and black animals penetrate
Midnight or Aphotic Zone
1000 meters deep, no light or less than 1%
what is Bioluminesence
production and emission of light by a living organism
- usually blue-green
How common is Bioluminesence
common and imporatnt in water column
Functions of Bioluminescence
Counterillumination
- organisms are able to hide the silhouette of animals when viewed below
Finding others
- prey and mate
How do living organisms produce light
through bioluminesence, flouesence, or phosphoresence
Bioluminesence
a form os chemiluminesence which is the production of visble light by a chemical reaction
Floursence
fraction of light illuminating an obect is asborbed and then re-emitted as a diff. color
