Table Of Contents
- Description
- Behavior
- Reproduction and Life History
- Morphology
- Trophic Strategy
- Ecology and Distribution
- Distribution
- Habitat
- Conservation
- Relevance
- Uses
- Biodiversity Heritage Library
- References and More Information
- Literature References
- Specialist Projects
- Common Names
Behavior
When brown trout spawn, the male and female are not monogamous. These trout mate every year, and they are not likely to have the same mate year after year. Occasionally, large males take over a bed already occupied by a smaller, less aggressive trout. After spawning, browns move rapidly downstream to wintering areas. Populations are heavily dependent on redd density. The ideal redd site for brown trout to reproduce is characterized by small substrate particles averaging .5 inches (1.2 cm) in diameter, a water velocity of 7 inches (18 cm)/second, and a depth of about one foot (30 cm). Brown trout are most active in the early morning and evening and when the water temperatures are near 55 degrees Fahrenheit (13°C). During the day, or times when they are not feeding, large browns seek refuge in slow water with ample cover. The most common types of cover are overhang, submerged logs or vegetation, or deep water. They will not move from these sites except to feed and will return when they are finished.
Explore
|
|
Pelecanus onocrotalus Linnaeus, 1758
White Pelican |
|
|
Nezumia micronychodon Iwamoto, 1970
Smalltooth grenadier |
|
|
Signigobius biocellatus Hoese & Allen, 1977
Twinspot goby |
|
|
Pampus argenteus (Euphrasen, 1788)
Silver pomfret |
|
|
Heteromycteris oculus (Alcock, 1889)
Eyed sole |