Too much goose poop and hot summers have progressively degraded the small lake in Slate Run Metro Park near our home. Although the surface of the lake is relatively open right now it will soon be covered with what is commonly referred to as "pond scum". This algal covering, encouraged by hot weather and nitrogen in the goose poo, hinders fishing, decreases oxygen levels, and contributes sediments which reduce the depth of the lake and cause a general imbalance in the ecosystem when they occur over a period of years. Visitors to the park are complaining about the poor fishing conditions and after last night's survey I can personally attest to the fact that the lake is significantly not as productive as it was in the mid 90's when I participated in a previous study and when I, along with my co-workers, fished the lake to get specimens for a kid's program on fishing. Back in the old days one needed only to make a single cast and was practically assured a legal length large mouth bass. The lake is catch and release for ages 16 and younger only. Last night a team comprised of my husband who is the forest ecologist, an aquatic ecologist, the park manager, an intern and myself (the photographer covering the outing for social media and the quarterly park magazine) did another fish survey by electrofishing for them. Electrofishing is scientific survey method used to sample
fish populations to determine abundance, density, and species
composition. This process results in no
permanent
harm to fish, which are returned to the lake after identifying,
measuring and weighing. We got bass and bluegill and I netted on grass
carp that was 27.5 in. and 11 pounds. I could barely hoist it into the
boat. Overall we observed a giant turtle, a plethera of teeny tiny blue gill and only netted 5 largemouth bass, 30 medium sized blue gill, and the aforementioned grass carp after 3 hours of combing the lake. It was a beautiful night to be out and about and enjoyable to participate in the survey.
Buzzards Roost Lake
Waiting for the sun to set
I wandered around photographing (with their permission) visitors enjoying the park.
Discussing strategy
Bringing in the monster grass carp
Weighing and measuring
Recording species data and length of fish