Next week marks the start of our 2019 fish sampling season. Throughout the spring we will be setting up our fyke net underneath the railroad bridge in hopes of catching migrating river herring moving upstream to spawn. Last year was our most successful year to date as we caught 149 adult alewife in our fyke sampling and 146 juveniles in our seine surveys.
This year we have revamped our PIT tagging program. We’ve added an antenna to the inside of the culvert. This antenna will help us answer questions such as: what time of day are river herring traveling in the antenna? Are they swimming with or against the tide? And how fast are they swimming? See several pictures of the antenna below.
We have also changed the design of our antenna that we place at the opening of the culvert. This antenna is designed to float on the surface of the pond. It is our hope this antenna will be more resilient to the high flows experienced there.
Stay tuned for more updates on our PIT tagging and sampling results!