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Went collecting Membranipora with Anette at Hjellestad:


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The dock has a lot of kelp growing and the colonies of Membranipora and Electra were larger than last time, but still small (around 5 cm). We could find large colonies covering the whole surface of the algae. We also collected a jellyfish for muscle staining.

Leaves were distributed in half-full buckets with water at 4 °C. I checked the colonies and most of the large ones had plenty of sperm inside the zooids, but not disc shaped eggs. There were smaller and rounded oocytes apparently. Buckets kept with a black plastic bag in the cold room.

30/05/12

Checked some colonies to see if they were alive; they were. Removed 1/3 of the water from the buckets and added more clean sea water.