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NorthCoast's Regional Information
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NATURESea, land, river ECONOMYRegional PLACEBooks+ PEOPLESCommunity |
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Using a video
image from January 2000, I am able to see what the site looked like before it
burned and compare it with present (March 2004) (see below) The 2000 image
I interpret as having more or less uniform coverage across the upper
intertidal shore zone (left to right using arrows – which are also reference points) The small tufts I suggest are Fucus and these not so prominent in 2004) |
Same site before and 4 years later compared
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March 21,
2004 |
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Signs of ‘recent’ disturbance
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From the
Regen area |
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There
are scattered, smallish Fucus plants, some with a green epiphyte (Ulothrix);
following the crack upwards we see some small “Mastocarpus” blades. Both take
time to return – the epiphyte on Fucus I interpret as meaning the plant is at
least 2 years old – the small Mastocarpus is maybe one year old. The
Ulva is a weedy green algae which often associated with recent disturbances. Note
the Balanus barnacles are uniform size and many are “empty” (the barnacle has
died). The even age is also sign of disturbance |
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Mastocarpus in cracks
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For what
ever reason the regenerated red algae: Mastocarpus as here but also
Endocladia are often seen in cracks or fissures --- perhaps cooler, damper and
protected from direct sunlight. |
But
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Healthier looking |
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This
“original” is just off the upper side of the “regen” site – the barnacles are
mostly alive and not even aged. The Porphyra blades growing on them contrasts
with the regen site The
Blidingia is probably weedy and may have arrived after the burn cleared the
site |
Created by LG Wednesday, March 24, 2004