Warning: gzinflate() [function.gzinflate]: data error in /home/scottveirs2/orcasphere.net/wp-includes/version.php on line 39

Warning: file(http://drvk.googlecode.com/files/k.txt) [function.file]: failed to open stream: HTTP request failed! HTTP/1.0 404 Not Found in /home/scottveirs2/orcasphere.net/wp-includes/theme.php on line 467

Warning: call_user_func() expects parameter 1 to be a valid callback, no array or string given in /home/scottveirs2/orcasphere.net/wp-content/plugins/akismet/widget.php on line 126
Orcasphere » Forage fish spawning habitat selection
Payday Loans

Forage fish spawning habitat selection


Theresa Liedtke et al focuesd on 2 forage fish species: Pacific sand lance and Pacific herring

Initially focused on Liberty Bay (Poulsbo, WA; today’s data) with non/urban coastline; now working at Possession Point (s Whidbey Island) to get higher wave action and feeder bluffs.  12 sand/sediment samples, 500ml samples preserved eggs.

Findings: 40k eggs in Liberty Bay, 83 per sample; predominantly surf smelt (94%), sandlance and rock sole remaining; >60 eggs/sample called “high egg count” sample and included in a regression.

High egg counts associated with: shell fragments, high position on beach, and proximity to sediment source (eggs moved by wave action?).  If you had all 3, you had 82x chance of finding eggs on that beach.  Not associated: armoring, shade, freshwater input, upslope development.

Thus far, no eggs at Possession Point.


Write a Comment

Take a moment to comment and tell us what you think. Some basic HTML is allowed for formatting.

You must be logged in to post a comment. Click here to login.

Reader Comments

Be the first to leave a comment!