Squamish
Streamkeepers Update-The herring are in.
An interesting article from Jack Cooley (Squamish Streamkeepers)
An interesting article from Jack Cooley (Squamish Streamkeepers)
On
Friday, February 2nd, the Streamkeepers went to the Squamish Terminals
East Dock to put in two float lines for herring to spawn upon. Their timing
couldn’t have been better as the myriad of seagulls wheeling off the south end
of the Terminals showed that the herring had already spawned on the intertidal
bladderwrack there. With the lowering of the afternoon tide, the seagulls were
getting to feast on the exposed herring caviar. No doubt a welcome treat in mid
winter.
The 200 pilings that had been wrapped with safe spawning materials since 2006
had also received a light early spawn which should increase dramatically
through February and March and even into early April.
The last few years the Streamkeepers
had put out one 350 foot floatline, but this year the float lines were more
than doubled that to 850 feet. There are several advantages to float lines over
wrapped pilings. First, since the herring can spawn on both sides of a
floatline, the spawning surface area is doubled. Second, Since the float line
goes up and down with the tide, the eggs lain on the float lines are never
exposed to surface elements such as frost, sun, wind and floating surface
contaminants. Last year many of the wrapped intertidal piling eggs died while
the subtidal float line eggs and the nearby intertidal bladderwrack eggs
survived, indicating there had been an unidentified surface contaminate under
the dock last year. Therefore the decision was made that this year the
expansion of herring spawning aids would be limited to sub surface materials, that
is expansion of the float lines until it is certain that there is no surface
contaminants under the dock that could kill intertidal eggs.
As always, a big crew makes for
lighter work, and this year we had the biggest crew so far. Cal Hartnell, Jen
Smalley, Brad Ray, Ana Santos, Patrick MacNamara, Lyle Wood, John Rodgers
(Alaskan visitor), Mike Pawluk, Eric Andersen, Jonn Matsen, and Jack
Cooley. The next step will involve routine
monitoring of the herring spawn and it’s hatch out quantity and quality, followed
by pulling and hosing down the float lines in mid April.
Many thanks to Squamish Terminals for their ongoing support in bringing back
the herring to Howe Sound.