Chapter 9 Flashcards
Where do pelagic organisms live? Water column or seafloor?
Water Column
Epipelagic depth range?
0-200 m
Mesopelagic Depth range?
200-1000 m
Bathypelagic depth range?
1000-2000m
Abyssopelagic depth range?
2000-6000 m
Hadopelagic depth range
Greater than 6000 m
Where do benthic organisms live? Water column or seafloor?
Seafloor
Intertidal depth and zone?
Between low and high tide
Sublittoral depth and zone?
pretty much the continental shelf, depth reaches 200 m
What is an adaptation?
trait or characteristic that increases the chance of survival
Adaptive Coloration?
- Blending into background
- Camouflage
- Color patterns and textures that help hide an organism
Adaptive countershading?
Animal is light colored on one side and dark colored on the other
Adaptive bioluminescence?
- Chemical reaction in the organism releases light
- No heat released
- Similar to fireflies
Vertical migration adaptation?
- Organisms hide in the dark, depths during the day
* Move to surface to feed at night when it is harder to see them
Adaptive eye size?
Larger eyes to detect light in deeper, darker waters
Symbiotic relationship adaptation?
•Mutually beneficial
Example: An anemone provides protection from predators to a clownfish. The clownfish cleans the anemone by eating and brushing off bacteria.
Adaptive appendages
More appendages help organisms “float” in less dense (warmer) water
How do baleen plates aid in obtaining food? Which organisms have baleen plates?
Trap food in.
Whales