NAFC Marine Centre in Shetland run an invasive monitoring program and have also produced "A Biosecurity Plan for the Shetland Islands" as part of the Shetland Islands' Marine Spatial Plan.  In the Biosecurity Plan it lists C. mutica as widespread throughout Shetland (Page 16).  We have presence/absence records for our sampling locations and probably have some presence only data from targeted sampling.  Rachel Shucksmith runs the program or you can email me directly at [email protected] (Rachel's email is the same but obviously with her name!) and we can give you some more detail.

Dear Richard, Thank you for this offer. I will send you an e-mail right away.

Hi Joop, 

I've been looking at the range expansion of Caprellids in the English Channel from west to east. There are a couple of absence references from the rapid survey in 2004, and we will be investigating the presence/absence later in September repeating the locations of this survey and possibly extending it. 

I recently identified C. mutica as present in Langstone Harbour, Portsmouth for the first time last year, and we are embarking on a population genetics study this year. If you are interested in collaborating, we could include extend the genetics to include some of your Dutch samples. 

I'm based at the Institute of Marine Sciences, Portsmouth University

[email protected] if you want to get in touch

Best

Jo

Hi Joanne,

Thank you for your answer. I am interested mostly in samples from the east of the Channel, and will send you an e-mail. I am sure I can supply samples for your molecular work. We even have some C mutica stored in the -80 freezer here.

Hi Joop

Maybe this will help: I just uploaded our recent paper on Caprella tuberculata in the Dutch part of the North Sea. It includes several references on Caprellids in this area.

Wim Vader responded to our paper and he presented an unpublished record of this species on the light vessel Noordhinder half a century earlier: Vader, W. 2015. Enkele amphipoden van het lichtschip Noordhinder in 1956. Het Zeepaard 75 (2) 53-54.

Article Het spookkreeftje Caprella tuberculata Guérin, 1836 op een w...

Hi Godfried,

thank you, I was aware of your publication. Thank you for the additional one. We also found C. tuberculata on wrecks in the Dutch North Sea.

The manuscript I needed the data for is submitted already so for now the need for additional Caprellid data is limited, athough I am alway interested in aditional data and publications.