Andrew Briggs

#GreatLakes Fisheries Research Biologist. @LifeatLSSU and @CMUniversity Alum, Scottville, MI native.

[Andrew Briggs @FishBio_Briggs]

🆕 paper we just published documenting Lake Sturgeon feeding excavations for the first time! This was in Lake St. Clair, with excavations being found in an area acoustic telemetry revealed to be a high use area.

https://t.co/ubU8Ezq9sr

#Sturgeon #GreatLakes

[Andrew Briggs @FishBio_Briggs]

We have wrapped up our Lake #Sturgeon field work for the year with our final sturgeon trawls on Lake St. Clair conducted today!

#GreatLakes

[Andrew Briggs @FishBio_Briggs]

On our way through downtown #Detroit to Lake Erie to start our annual Lake Erie gill net survey!

#GreatLakes #Fish #Boatlife

[Andrew Briggs @FishBio_Briggs]

Check out this paper recently published on Lake Sturgeon spatial use of Lake St. Clair that we collaborated on! The study was very useful to our #sturgeon monitoring program.

#GreatLakes

https://t.co/jxnzmbYaml

[Andrew Briggs @FishBio_Briggs]

We completed our Saginaw Bay forage trawl survey this week! Trout-perch were the most common forage species caught. We also caught several large rocks that tore up a few of our nets…

#GreatLakes #SaginawBay

[Andrew Briggs @FishBio_Briggs]

Out on our research vessel, the R/V Channel Cat! One of the oldest active research vessels on the Great Lakes.

#GreatLakes #GreatLakesSci

[Andrew Briggs @FishBio_Briggs]

@Archedites Yes, a yellow perch (and a nice one)!

[Andrew Briggs @FishBio_Briggs]

Here’s a photo of the forage caught in one of our trawls on Saginaw Bay today. What species can you identify in the photo?

#GreatLakes #Fish

[Andrew Briggs @FishBio_Briggs]

@mjbernt There are lots of trout-perch!

[Andrew Briggs @FishBio_Briggs]

@puckmojo Yup, there are several Yellow Perch in the photo!

[Andrew Briggs @FishBio_Briggs]

Every move you make, I’ll be watching you…

#GreatLakes #sturgeon

[Andrew Briggs @FishBio_Briggs]

@efl45 We were out between Caseville and Au Gres.

[Andrew Briggs @FishBio_Briggs]

We started our Saginaw Bay forage trawl survey today. Noteworthy catch for today were a few Lake Whitefish, which we have rarely seen during this survey in recent years.

#GreatLakes

[Andrew Briggs @FishBio_Briggs]

@winonsaturday 77mm (3 inches)

[Andrew Briggs @FishBio_Briggs]

This week we conducted our “micro-mesh” gill net survey on Lake St. Clair, which helps us monitor the forage species in the lake. Logperch were the most common species caught.

#GreatLakes

[Andrew Briggs @FishBio_Briggs]

@andywhitcomb Logperch have typically been a large portion of the catch for this survey. They seem to be very susceptible to the micromesh gill nets.

[Andrew Briggs @FishBio_Briggs]

We wrapped up our week of Lake #Sturgeon trawling on #LakeStClair today and were able to get the rest of our acoustic telemetry tags into fish!

#GreatLakes

[Andrew Briggs @FishBio_Briggs]

@jenelaina it’s difficult to say as growth typically slows down so much at these sizes, but it could be over 100 years old!

[Andrew Briggs @FishBio_Briggs]

We have another 🚨 BIG FISH ALERT 🚨

We have a new heaviest #sturgeon for the year, with this 120 pounder caught today during our trawl survey on #LakeStClair! It was caught, measured, tagged, and released.

#GreatLakes #BigFish

[Andrew Briggs @FishBio_Briggs]

@andywhitcomb Radio carbon date some of the larger fish suspected to be that old to confirm whether that is plausible, similar as what was done with Greenland sharks.

[Andrew Briggs @FishBio_Briggs]

@andywhitcomb The fish from our system were towards the lower longevity and more similar to previous assumptions about lake sturgeon longevity. However, the models predicted some other systems the sturgeon could be several hundred years old. Hopefully there will be an opportunity to…