Parts of the macroalgal flora of the eastern Mediterranean remain incompletely known. This applies in particular to the circalittoral communities. This study, based upon 2 cruises in the Ionian and Aegean Seas, surveyed benthic communities from 40 to 150 m depth by remotely-operated vehicle (ROV) with a special focus on detecting communities of the Mediterranean deep-water kelp Laminaria rodriguezii. These were complemented by shallow-water surveys on adjacent coastlines by snorkelling and scuba diving. While no kelp could be detected at any of the sites surveyed, ROV surveys of northern Euboia Island revealed the first east Mediterranean record of Sebdenia monnardiana (Sebdeniales, Rhodophyta). Snorkelling surveys on the coast of southeast Kefalonia yielded the first record of the alien alga Dictyota cyanoloma in Greece. This paper reports rbcL and SSU sequences for Sebdenia monnardiana, and COI for Dictyota cyanoloma.
We would like to thank the entire crew of R/V Philia (HCMR), led by Cptn. Manolis Kokos, for their smooth conductance of both cruises and great hospitality on board. Thanks are also due to Max Overstrom-Coleman (Moss Landing) for supporting the Ionian Sea cruise in March 2013, to Conxi Rodriguez-Prieto (Girona) for identifying Sebdenia monnardiana, and to Dawn Shewring (Aberdeen) for supporting the molecular work. We also acknowledge many years of funding support from the TOTAL Foundation (Paris) to FCK, PP, KT and CK, and from the UK Natural Environment Research Council to FCK (grant NE/D521522/1, Oceans 2025 / WP 4.5). AM received joint PhD funding from the School of Biological Sciences, University of Aberdeen, and the Falkland Islands Government. We are also grateful for funding from the MASTS pooling initiative (The Marine Alliance for Science and Technology for Scotland). MASTS is funded by the Scottish Funding Council (grant reference HR09011) and contributing institutions.
- alien species
- Laminaria rodriguezii