During our seashore visit to Filey Brigg on 21st July, there were a few interesting things to be found.
Seashore Sea Lettuces (Ulva spp.) and other green seaweeds in all their varieties do well when there is plenty of fresh water about. Given this years weather conditions there has been an explosion in growth on the first part of Filey Brigg. There is also an excess of periwinkles (Littorina spp.) on nearby rocks. Counting them will provide great entertainment for our more serious minded school groups, all part of the fun of rocky shore zonation.
Periwinkles are marine snails which graze off seaweed growing on rocks so they too appear to be having a good year. There are also large numbers of velvet swimming crabs around at the moment (Necora puber) . All the ones we saw were under size and cannot legally be landed.
The find of the day was definitely some squid eggs which may possibly be from the common European squid (Loligo vulgaris) which lays eggs in sticks. As they were unlikely to survive, they have gone into some filtered seawater in our small marine aquarium to see if they will hatch. Hatching apparently takes anything from 25 to 45 days depending on temperature. One thing which is certain, is that they are orphans, as the adults die soon after laying their eggs.
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