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3 Cards in this Set
- Front
- Back
Diel vertical migrations |
Ascend water column during evening/night, descend during day Many plankton Change in light intensity is cue for mig |
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Costs of vertical migration |
1. less food available at depths- slower growth and fecundity 2. developmental time eggs carried is prolonged at cooler temps 3. Requires energy |
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Hypotheses for vertical migration |
1. Avoidance of optically orienting predators 2. Metabolic advantages due to temperature or food |