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The longnose dace is light olive to black
on their back shading to yellow or silver
on their belly. They may have a dark
band along their side but this depends on
where they are found. Their name comes
from their prominent long snout, which
joins directly to the upper lip and
overhangs their mouth. This may be one
reason they are sometimes mistaken for
young suckers. Young longnose dace
have a distinctive stripe on their sides
from snout to tail that passes right
through the eye.
The Nooksack dace is generally smaller
than the longnose dace. It is grey-green
above and yellow to silver on its belly.
You can tell a Nooksack dace from the
longnose dace by the number of scales
along the lateral line. (The lateral line is
part of a fish”s sensory system; it’s the
fine line that runs along their side under
the skin). The Nooksack dace has 54
scales along the lateral line and the
longnose dace has about 67.
Ministry of Fisheries. 1999. Longnose Dace & Nooksack Dace. Ministry of Fisheries. BC Fish Facts
Topic: Fish and Fish Habitats
Keywords: fish facts, longnose dace, nooksack dace, dace, fisheries, habitats
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