Lake Trout Ecosystems in a Changing Environment - Chapter 14 ppt
Lake Trout Ecosystems in a Changing Environment - Chapter 14 ppt
... setting of Killarney Provincial Park
and was used as an alternate lake to test the habitat manipulation technique. It has good
water quality, a native reproducing lake trout population, and a complex ... the relative
abundance of lake trout in the lake. In the fall (October 1 to 30, 1997) a spawning assessment
of adult lake trout in Michaud Lake was conducted, and...
Lake Trout Ecosystems in a Changing Environment - Chapter 1 pptx
... 8,000 years ago. Lake Agassiz was impounded between
the retreating ice margins and the Manitoba Escarpment — the present-day remnants
including Lakes Manitoba, Winnipeg, Dauphin, and Winnipegosis. ... banksiana) and red pine (Pinus
resinosa); poorly drained sites are characterized by black and white spruce, balsam fir,
tamarack (Larix laracina), eastern red cedar (Juniperus virginiana),...
Lake Trout Ecosystems in a Changing Environment - Chapter 6 ppt
... 1-m increase in transparency would result in an increase in Z
10
of
ca. 1 m. Following a 2-m increase in transparency, optimal habitat volumes in the same
lakes would be reduced by between 8 and ... trout habitat, or any other class of habitat.
A
0
© 2004 by CRC Press LLC
chapter six
Lake trout (Salvelinus namaycush)
habitat volumes and boundaries
in Canadian Shiel...
Lake Trout Ecosystems in a Changing Environment - Chapter 7 ppt
... trout lakes and 436
other non lake trout lakes with available data.
Lake Trout lakes Non -Lake Trout Lakes
Maximum Depth (m)
0-1 0
1 0-2 0
2 0-3 0
3 0-4 0
4 0-5 0
5 0-6 0
6 0-7 0
7 0-8 0
8 0-9 0
9 0-1 00
10 0-1 10
50
40
30
20
10
0
Percent ... concentration distributions in 293 lake trout lakes and 927 lakes with
no lake trout in Ontario.
Lake...
Lake Trout Ecosystems in a Changing Environment - Chapter 2 doc
... Superior basin, and finally eastward into Lake Barlow-Ojib
-
way (Mandrak and Crossman, 1992). Lake Barlow-Ojibway extended across northeastern
Ontario and northwestern Quebec, and drained into the ... variants have been
identified in Shield lake trout populations, including black fins (e.g., Redstone Lake) and
pale or dark background coloration (e.g., Lost Dog Lake and Ca...
Lake Trout Ecosystems in a Changing Environment - Chapter 3 doc
... propose stocking all available hatchery-reared lake trout allocated to a lake in a
given year into one selected locality that has an abundance of spawning habitat, leaving
other areas of the lake unstocked. ... obstacles faced by lake trout in the Great Lakes.
Approximately 330 million yearling and fingerling lake trout were released into the Great
Lakes from 1950 to 2...
Lake Trout Ecosystems in a Changing Environment - Chapter 5 pot
... spawning areas in the littoral zones of Lake aux Sables using a tarp
(Benoît and Legault, 2002) led lake trout to abandon these areas and reproduce in the
artificial deep-water spawning areas ... occurring after lake trout spawning. Draw-
downs occurred before lake spawning on 39 lakes and during spawning on 14 lakes (some
lakes had drawdowns occurring at more than one tim...
Lake Trout Ecosystems in a Changing Environment - Chapter 8 doc
... Molot, L .A. , 2003, Predicting optimal habitat boundaries for lake trout
(Salvelinus namaycush Walbaum) in Canadian Shield lakes, Canadian Journal of Fisheries and
Aquatic Sciences (in press).
Dillon, ... long-term integrity of lake
trout habitat will require the management of activities in the catchments of lakes that
affect DOC inputs to lakes. Climate change and acid rain als...
Lake Trout Ecosystems in a Changing Environment - Chapter 9 ppsx
... pollutants may be increasing
Hg concentrations in lake trout in small Boreal lakes. Experimental lake acidification was
observed to increase Hg in fish (Wiener et al., 1990) and Hg in fish in lakes ... to lake area in a study where the ratio of
catchment to lake area was not kept constant as in Bodaly et al. (1993). Lakes with pro-
portionately larger catchment areas...
Lake Trout Ecosystems in a Changing Environment - Chapter 10 potx
... 1982). Although Al is abundant in nature,
it is relatively insoluble in the neutral pH range and thus unavailable biologically. Acid-
neutralizing capacity largely controls pH and the bioavailability ... monomeric
Al, in comparison to lakes with fish (Gallagher and Baker, 1990).
Small, high-elevation lakes in the Adirondacks are more likely to be fishless than
larger lakes at low elev...
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