10.25607/iyek7l http://ipt.medobis.eu/resource?r=mollusc_nagisa Dimitris Poursanidis Foundation of Research and Technology - Hellas PhD

Nikolaou Plastira 100, Vassilika Vouton Heraklion Crete 70013 GREECE

+302810391774 dpoursanidis@gmail.com http://www.forth.gr/index.php?l=e Giorgos Chatzigeorgiou Hellenic Centre for Marine Research PostDoc

Thalassocosmos, Former American Base Heraklion Crete 71003 GREECE

chatzigeorgiou@hcmr.gr Dimitris Poursanidis Foundation of Research and Technology - Hellas PhD

Nikolaou Plastira 100, Vassilika Vouton Heraklion Crete 70013 GREECE

+302810391774 dpoursanidis@gmail.com http://www.forth.gr/index.php?l=e Dimitra Mavraki HCMR-IMBBC Data manager

Thalassocosmos, Former American Base Heraklion Crete 71003 GREECE

dmavraki@hcmr.gr https://imbbc.hcmr.gr/ 0000-0001-6775-530X CUSTODIAN_STEWARD Christos Arvanitidis Hellenic Centre for Marine Research Senior Researcher

Thalassocosmos, Former American Base Heraklion Crete 71003 GREECE

arvanitidis@hcmr.gr PRINCIPAL_INVESTIGATOR Drosos Koutsoubas University of the Aegean, Dept. of Marine Science Professor

Department of Marine Sciences, School of Environment, University of the Aegean Mytilini 81100 GREECE

drosos@marine.aegean.gr PRINCIPAL_INVESTIGATOR 2024-05-17 ENGLISH This dataset contains occurrence records of infralittoral molluscs from two infralittoral rocky shore sampling sites in northern Crete (Greece). Samples were collected for a monitoring project of infralittoral rocky shores in Crete, in the framework of the NaGISA project (Natural Geography in Shore Areas, http://www.coml.org/projects/natural-geography-shore-areas-nagisa). The two sampling sites are characterised by a continuous hard bottom habitat with dense algal coverage and a moderate wave exposure and are not impacted by detectable anthropogenic activity. At each site, five random replicate units were collected from each depth of 1m, 5m, 10m, 15m and 20m by placing a plexiglas frame (25x25 cm) on the substrate and scraping the framed area completely. The samples were then collected with an underwater suction device working with pressure from a diving bottle. Samples were washed through a 0.5 mm mesh sieve and fixed in 99% ethanol. In the laboratory, all samples were identified to the most precise taxonomic level possible, using the most recent literature for the phylum. The pollychaetes records are available as a separate dataset in the dataset "Polychaetes from two subtidal rocky shores of the North coast of Crete, collected for the NaGISA project 2007-2008" available at http://ipt.medobis.eu/resource?r=nagisa_species_2007_2008. NaGISA project none Aegean Sea https://www.marineregions.org/gazetteer.php?p=details&id=3315 Samplingevent GBIF Dataset Type Vocabulary: http://rs.gbif.org/vocabulary/gbif/dataset_type_2015-07-10.xml Specimen GBIF Dataset Subtype Vocabulary: http://rs.gbif.org/vocabulary/gbif/dataset_subtype.xml This work is licensed under a Creative Commons Attribution (CC-BY) 4.0 License . Creative Commons Attribution 4.0 International https://spdx.org/licenses/CC-BY-4.0.html CC-BY-4.0 http://ipt.medobis.eu/archive.do?r=mollusc_nagisa North coast of Crete island, in the Mediterranean Sea 24.247 26.213 35.577 35.106 2007-09-18 2008-06-08 Gastropoda, Bivalvia, Polyplacophora Class Gastropoda Class Bivalvia Class Polyplacophora unkown Dimitris Poursanidis Foundation of Research and Technology - Hellas PhD

Nikolaou Plastira 100, Vassilika Vouton Heraklion Crete 70013 GREECE

+302810391774 dpoursanidis@gmail.com http://www.forth.gr/index.php?l=e - The two sampling sites are characterised by a continuous hard bottom habitat with dense algal coverage and a moderate wave exposure and are not impacted by detectable anthropogenic activity. The sampling sites are 1. Alykes-Agia Pelagia- Heraklion-Crete-Greek EEZ and 2. Elounda- Agios Nikolaos-Crete-Greek EEZ subtidal rocky shores from 1-20m with photophilic algae Bounding Coordinates: 35.13, 35.46 / 24.93, 25.83 (min, max Latitude / min, max Longitude) At each site, five random replicate units were collected from each depth of 1m, 5m, 10m, 15m and 20m by placing a plexiglas frame (25x25 cm) on the substrate and scraping the framed area completely. The samples were then collected with an underwater suction device working with pressure from a diving bottle. Samples were washed through a 0.5 mm mesh sieve and fixed in 99% ethanol In the laboratory, all samples were identified to the most precise taxonomic level possible, using the most recent literature for the phylum. Then the names are mapped against WoRMS. The Natural Geography In Shore Areas (NaGISA) project was a collaborative effort aimed at inventorying and monitoring habitat specific biodiversity in the global near shore. The international character of the project and its target zone were reflected in the word nagisa, which is Japanese for the narrow coastal zone where the land meets the sea. NaGISA held a unique position in the Census of Marine Life as an ambassador project, linking the Census to local interests around the world. NaGISA's first aim was to draw up a global baseline of nearshore biodiversity and then to use its network to continue monitoring those same shores for the next 50 years. 2026-04-14T08:23:46Z Poursanidis D, Chatzigeorgiou G (2024). Molluscs from two rocky shores (infralittoral zone) of the North coast of Crete, collected for the NaGISA project 2007-2008. Hellenic Center for Marine Research. Sampling event dataset https://doi.org/10.25607/iyek7l accessed via GBIF.org on 2026-04-14. Poursanidis D, Koutsoubas D, Arvanitidis C, Chatzigeorgiou G. ReefMedMol: Mollusca from the infralittoral rocky shores - the biocoenosis of photophilic algae - in the Mediterranean Sea. Biodivers Data J. 2016 Jul 6;(4):e7516. doi: 10.3897/BDJ.4.e7516. PMID: 27932901; PMCID: PMC5136646.