Lake Monitoring Network
BFBM’s Lake Monitoring Network collects ambient water quality information for NJ lakes consisting of three components: Statewide statistical (probabilistic) survey, statewide reference lakes, and targeted regional lakes.
Details on the lakes network can be found by clicking on the link.
Routine Cyanotoxin Sampling
Microcystins: collected from all Network lakes, at one meter depth (or half total depth in lakes less than 1.5m deep) during the growing season.
Cylindrospermopsin and Anatoxin-a: occurs infrequently, and will be analyzed only when Chlorophyll ‘a’ levels are > 10µg/l. Additional samples will be collected if there is an obvious bloom observed on the lake surface.
If bloom observed, a sample may be screened in two ways to determine if more quantitative analysis is necessary:
Sample analyzed with a Turner Designs Aquafluor handheld fluorometer. This device will measure the phycocyanin and chlorophyll a pigments to detect the presence and abundance of cyanobacteria.
Microscopic analysis to identify and confirm the presence of cyanobacteria taxa in the sample.
If a confirmed Harmful Algal Bloom is present with levels quantified at or above the NJ Health Advisory Guidance, BFBM and DWM&S management will be alerted and a response plan will be developed.
May include follow-up sampling in the frequency and duration necessary to confirm the continued presence or absence of the initial bloom.