Marine Invader Monitoring and Information Collaborative
August 5, 2015

We have been focusing on the float that is after the CTC boat float and the STone wharf at that area. The rope I put in last year is stuck down so I was not able to pull it. There is another rope that has been attached probably by the town in case someone goes overboard and we pulled that and didn't see any life on it. Not sure how long it has been over.

NOTE: From Jeremy Miller of the Wells National Estuarine Research Reserve: (We are also seeing MUCH less invasives at our site this year as compared to last year.....I think it has something to do with how long it took for the ocean to "warm up" this spring.....)

This is the first time we are checking the salinity as the Reserve sent us a refractometer to use for our monitoring.

click here for Data Sheet.


Observers: Bev Johnson, Cynthia Maguire
Time: 10:00 to 11:00 AM
Water Temperature: 19º C
Salinitiy 1.024 - 34 parts per thousand
Weather: Sunny clear 65º
Time of Low Tide: 9:32 -.99'

Botrylloides violaceus (Sheath Tunicate)

A Colonial animal closely related to jellyfish, called Hydroids. They are very common and usually abundant on the docks, especially in years where fouling of invasives are minimal.

Invasive capprelid shrimp Caprella mutica. These guys are a relatively new invader (last few years) and are showing up at more and more sites each year!

Caprella mutica

A row of spines on their backs distinguish them from our native species of caprellid.