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Vertebrate Zoology
Water Life Zones
Question | Answer |
---|---|
Epipelagic | 0-200 m; Lots of biomass, light, and warm; Circadian rhythms play large rule; Colorful fish for communication (Day) or camouflage (night) |
Mesopelagic | 200-1000 m; Rapid decline in light, biomass, and temperature; Migrating vertically up to eat during the evening and hide below in the day and to save metabolic rate; Photophores for hunting, communication, and countershading |
Bathypelagic | 1000-2000 m; No light but a stable and low temperature; No biomass unless at the bottom of the sea with debris; Adaptations to conserve energy |