This morning I received information from Jim Kellogg (Birch Bound Rd.) answering the question about the dead critters in the water. Here's what Jim told us:
While up at the lake on Wednesday June 20th , I saw the exoskeletons of mayflies floating around the edge of the pond. They were Hexagenia limbata
commonly called the Big Yellow or Giant Mayfly. What was visible from
the shoreline was the remnant exuvia (molt or skin) when they
transformed from larval insects to adult flies. It must have been a
tremendously large hatch. They hatch generally at twilight, but only
live a few hours or days. The females rise from the water and rest in
lake side trees and brush while the males swarm above the waters.
Shoreline trees are critical habitat for the female mayfly during the
pre-courtship ritual. When the males are swarming, the females enter the
swarm seeking a mate. It’s the male that makes the selection and a
midair connection is made. Once fertilization is complete, the male
flies off with hopes of further mating while the female soon after drops
to the lake surface and pushes her abdomen in to the water where she
can release between 4,000 to 7,000 eggs. The delicate female drifts off
and quickly disintegrates from the wave action. Often, she’ll be eaten
by a fish while lying on the surface. It’s during this period when the
lake is strewn with bodies that the trout that normally feed in the deep
water come to the surface. The males will mate six or more times before
dying off as well. The eggs will drift down and after a couple of
weeks, tiny nymphs will emerge that will burrow in to the sediment. They
need clean, cold well-oxygenated waters and burrow in the shallow
littoral zone in silty areas. These mayflies live a larval immature life
stage for up to two years before swimming to the surface and flying
away briefly as adults. They are an important food source for fish and
crayfish.
Thanks, to Jim for that info. Jim's contact information is:
Jim Kellogg – Environmental Scientist
Watershed Management Division
Monitoring, Assessment and Planning Program
Biomonitoring and Aquatic Studies Section
Jeffords Hall – UVM
Burlington, VT
05405
Cell Phone – (802)-249-3370Bill and Diane Rossi have visitors - and lots of 'em. Can you imagine the noise these guys make in the morning when they're waking up? I'm told they really are unwelcome as you can imagine what a mess this many geese will make on a lawn. I guess they're here for a while, anyway - and will make the rounds of lawns, getting shooed away only to paddle off to another location.
Just a reminder, too, that Kevin Johnson's baseball guys will be picking up returnables on the Saturday after the 4th. They'll be around between 9 a.m. and noon, covering both sides of the pond, so plan to have your cans and bottles ready.
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