What
are THREESPINE STICKLEBACKS?
See: Fishbase
EARLY
LIFE HISTORY of THREESPINE
STICKLEBACKS: *see below for early
development
Spawning
Season of Adult THREESPINE STICKLEBACK: Spawing
occurs from April to September.
Where THREESPINE STICKLEBACK
Eggs are Found: THREESPINE STICKLEBACKS
construct nests consisting of small twigs and other
aquatic plant parts held together by a mucilaginous secretion
secreted by males. The finished nest is barrel-shaped,
hollow, and with smooth circular openings at each end.
The eggs are found in these nests, up to 600 in one nest.
Characteristics
of Eggs: The
eggs are yellowish and semiopaque;
1.5 – 1.7mm in diameter. They are laid in clusters,
adhesive to each other.
Size
of Babies at Hatching: Newly hatched babies
range in length from 4.2 – 5 mm.
Early Movements of THREESPINE STICKLEBACK
Babies: These babies hatch in nests and
move out, swimming together or nearby one
another near the bottom. They were only collected
in small numbers (1 -3 per 10 minute tow) with fine-mesh
townets in Ucluelet
Inlet and Tofino Inlet (Ref. 18). They were never collected
in Barkley Sound.
*Early development of THREESPINE
STICKLEBACKS