Big Spring Restoration Model
There are many models of improving Big Spring
in terms of geomorphology etc. but most of them are
wrong. The PFBC has its own ideas and those ideas may not
respect the historical integrity of the stream..
Furthermore, the PFBC denies that this was every such a fishery
even though Big Spring has one of the more documented fly
fishing brook trout histories in the world. Because
when these mills were present the fishing was great.
You must remember they kept the brook trout back then and
Charlie Fox, Vince Marinaro, Rossy Trimmer, Gene Utech and
others all said the same thing that you couldn't hurt the
trout population. Well that should give you some
indication of the proper model that should be applied.
Furthermore, the trout actually use some of these old pieces as
habitat.
If you took an aerial shot of Big Spring back
then you would see that it resembled a series of small ponds
connected by channels! Go take a look at some of the
videos from Great Britain on the
River Test. If you understand the biology of brook
trout you would immediately realize that this is optimum
habitat for spawning and growth. Brook trout spawn well in
spring fed ponds and this is how the trout behaved in the so
called "mill ponds" of yesteryear. Remember brook trout
will find the upwellings (and downwellings) and use them to
their advantage in the thin veneer of gravel that the
other trout, browns and rainbows cannot use as well.
In most sections of a limestone spring creek or
English chalk stream the key to habitat for trout would be the
macrophyte community. What would happen if the old
remnants of some of these dams were rebuilt in a modern
state to control the flow with mini-locks or gates like some of
the English streams? The stream would return to its best
state in flow regime and biological communities. It would
look like a series of small ponds with channels
connecting them. This fly fishing paradise which would
show that the state agencies in charge of Big Spring do
not have clue on how to manage this stream.
The Rosgen method of geomorphological
restoration has many problems and does not lend itself to
limestone spring creeks in general especially on Big Spring.
Many of the leading geomorphologists in the country
like Dr. David Montgomery of Washington University
and others question the overall concept as practiced
by Rosgen and his group. Furthermore, many of the so
called "engineering firms" who take Rosgen's weekend
seminars and courses seem to lack a significant
understanding of the overall ecology of streams and often
end up homogenizing substrate and current speed in their
projects which destroys biodiversity of the invertebrate
community.
If the PFBC wants to prove that brook
trout shouldn't take over this stream they do not
understand the ecology of Big Spring nor the reproductive
capacity of Brook Trout in this stream.
MACROPHYTES control the habitat for most trout in these types
of spring creeks and the English chalks streams look the
same!!!!! Macrohytes control the cycles, water flow, habitat,
invertebrates and a lots of other things. Have you ever
heard anyone from the PFBC or DEP mention this?
|