Fish
Body temperature changes as the surrounding water temperature changes.
Ectothermic
Body temperature changes as the surrounding water temperature changes.
Ectothermic
A group of individuals sharing some common characteristics or qualities, and whose offspring also share those characteristics or qualities.
species
The variety and number of different organisms and populations, and the way they live together.
Biodiversity
Fish use these to breathe underwater
Gills
Fish use this to detect water movement and pressure, as well as low frequency sounds
Lateral line
Parts of an ecosystem that are not living
abiotic factors
Flowing water with a measurable current
rivers and/or streams
Term for the organ used to control buoyancy in bony fish
Swim bladder
Term for migration upstream to breed (live most of life in saltwater and spawn in freshwater)
Anadromous
The maximum number of individuals that a particular environment can support
carrying capacity
Ecosystem where water meets lands
Wetlands
The term for fish that produce live young
Viviparous
Bottom feeders like catfish will use _______________ to detect buried prey.
Barbels
Pollution source that comes from a single source that people can identify.
Point-source pollution
Freshwater mixing with saltwater
Brackish
Fish class containing cartilaginous fish (sharks, skates, rays)
Class Chondrichthyes
Strategy used by predators where the organism or part of the organism resembles something harmless in order to lure in prey.
Mimicry (aggressive mimicry)
The groups of organisms that occupy the same position in a food chain
Trophic levels
How much (%) of wetlands have disappeared in Texas?
50%
Caddo Lake