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April 25, 2011


BY: Hanna Paulomäki


© OCEANA / Carlos Minguell


The Swedish side of Gulf of Bothnia appeared as its best to us; Easter Sunday was such warm and sunny day that working on a deck almost did not felt like work at all. We did ROV, grab and dive near Öregrund. In addition CTD was used to record the hydrography of the area. Visibility was not particularly good as expected, but we recorded many interesting species and features of the Baltic.

In the evening the great crew of the Hanse Explorer had prepared us a lovely Easter dinner. During the night we continued further south to Kopparstenarna near Gotska-Sandö. We did ROV revealing us an interesting rocky bottom complex and studied hydrography at about 20 m depth. Divers went exploring a shallower area at about 10 m and found a Furcellaria lumbricalis dominated ecosystem with a lot life, including large flounders. 

After the dive we moved back to Landsorstsdjupet to record also the hydrography of the deepest spot of the Baltic with CTD.

During the night we sailed towards Öland to Knolls Grund.