Untitled Flashcards Set

Anadromous

Fish that migrate from saltwater to freshwater to spawn (e.g., salmon).

Catadromous

Fish that migrate from freshwater to saltwater to spawn (e.g., eels).

Oceanodromous

Migration that occurs entirely within saltwater.

Potamodromous

Migration that occurs entirely within freshwater.

Cues for migration

Factors such as temperature changes, daylight length, food availability, chemical cues, and lunar cycles that trigger migration.

Vertical migration

Movement of organisms up and down the water column on a daily basis.

Diel migration

A type of vertical migration where marine organisms, like zooplankton, move to surface waters at night to feed and descend to deeper waters during the day.

Trophic upsurge

A temporary increase in productivity in a reservoir after dam construction due to increased nutrient availability.

Aquaculture

The farming of aquatic organisms such as fish, shellfish, and seaweed.

Top aquaculture countries

China, India, Indonesia, Vietnam, and Bangladesh are leading in aquaculture production.

Importance of estuaries

Estuaries serve as nurseries for many commercially important fish and shellfish species.

Estuarine food webs

Mostly indirect food webs that rely on decomposing organic material to support the ecosystem.

Human-induced impacts on coral reefs

Coral bleaching, ocean acidification, overfishing, coastal development, and pollution impacting tropical coral reefs.