The rock pools at Stackhouse Cove have lovely clear water and I was fascinated by the bright greens of some of the seaweeds. I live only 2 miles from the coast in East Lincolnshire, a very different coastline indeed!

I found the seaweed difficult to photograph in situ and tried to separate the spaghetti-like strands from some of the grey rocky background by using a white chopping board. This helped when enlarging the photos as originally I thought the green strands were all the same but it's possible there are two different species, the first on the limpet and another on (or under?) the red alga.

As iSpotters would expect, I trawled the green seaweeds documented by those-in-the-know on this site and was advised not to get hooked on Species (thanks dejay). I'm hoping not to be too far out with Family level Cladophoraceae, green algae in the order Cladophorales. This family includes notably the genus Chaetomorpha, which I understand as unbranched along the individual strands. This compares with the genus Cladophora which is branched in a tree-like pattern.
Not convinced I've got the correct taxon terms in this para.

The species Chaetomorpha melagonium is in the dictionary but there are no observations. Quite unscientifically, I'll offer it as a possibility just because I like it. See: https://www.algaebase.org/search/species/detail/?species_id=42

Also, Chaetomorpha linum is a delicate bright green seaweed. Also known as spaghetti algae, it grows as a filamentous loosely entangled mass. Usually free-floating, it may also be attached to rocks and shells. The filaments themselves are unbranched. See: http://macoi.ci.uc.pt/spec_list_detail.php?spec_id=28

Do see this and check the links:
https://www.ispotnature.org/communities/uk-and-ireland/view/observation/775635/

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