Lake Okeechobee Conditions Report April 28, 2009:
According to the USACE web site, Lake Okeechobee stage is 11.29' NGVD, which is 0.28'
lower than a week ago, 0.83'lower than a month ago, and 1.10' higher than it
was a year ago. The current stage
is 2.40' below the historical average for this date and 1.19’ below the
simulated average using the current regulation schedule (LORS2008). Total reported inflows are 165 cfs and are limited to flows through S65E. No inflow data
are reported for S129, S133 and Fisheating
Creek. Total reported outflows are
2867 cfs and include releases to the Caloosahatchee
River (274 cfs), water-supply releases through the
S351, S352 and S354 (2288 cfs) and flow (579 cfs) through the S308.
No outflow data were reported for the S77, but a pulse-flow release to
the Caloosahatchee began today.
An apple snail mark-recapture
experiment is being conducted on the lake to assist in the development of
methods for large-scale snail stock enhancements. Last Wednesday, Okeechobee Division
staff tagged 1500 adult apple snails obtained from the District-funded snail-rearing
facility at Harbor Branch Oceanographic Institute. The following day, the snails were
released in Eagle
Bay marsh (outside the
dike) across a 55m x 55m area. All
but 10 snails survived tagging and transport to the lake. Sampling will be conducted
at the release site every few days for the next month using standardized
recapture methods to estimate survival and dispersal of juvenile and adult
apple snails and reproduction.
Information gained from this study will provide valuable information on
the acclimation, survival, and reproductive output of laboratory reared snails
released into the wild that will be used to optimize protocols for future
releases.
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