Sponge occurrence and associated species and habitat descriptions derived from the 2021 and 2022 SCUBA diving surveys in the Eastern Shore Islands Area of Interest, Nova Scotia.

URLhttps://ipt.iobis.org/obiscanada/resource?r=eastern_shore_islands_sponge_survey_2021_2022
Repository URL http://ipt.vliz.be/obiscanada/
Node OBIS Canada
Published2025-03-11 16:48
First registered2025-03-11 21:08
Abstract

Funded under DFO's Marine Conservation Targets Program in partnership with the Huntsman Marine Science Centre (HMSC), this diver-based imagery and sample collection benthic survey documents the occurrence of sponges at 42 dive sites in the Eastern Shore Islands (ESI) Area of Interest (AOI, ~2089 km2) off the Atlantic coast of Nova Scotia, Canada from dive surveys conducted in summer 2021 and 2022. Water quality, species occurrences and counts, habitat, slope, and substrate characteristics were catalogued through diver log sheets, camera imagery, specimen vouchers, and high-resolution bathymetric data. A total of 54 dives to depths from 11 to 33 m (below sea level), collecting up to 147 still images, one-hour of video, and 17 specimen samples per site, resulted in 220 observations for 27 different sponge taxa. This included three new records for Canada (Hymedesmia stellifera, Plocamionida arndti, Hymedesmia jecusculum) and a range extension for a species new to science (Crellomima mehqisinpekonuta) which was recently described from the Bay of Fundy. There were also four species which may seem to be new to science (Halichondria sp., Hymedesmia sp., Protosuberires sp., and Sphaerotylus sp.). Sponges were found to occupy a diversity of micro-habitats, often several different ones in proximity. A total of eight distinct habitat classes were defined, based on varying abundances and diversity of sponges and associated benthic species. These are likely widely distributed among the many complex submerged seabed features within this AOI. Collected specimens were preserved and are stored at the Atlantic Reference Centre (ARC) in St. Andrew's, New Brunswick.

CitationGoodwin, C., Cooper, A.J., Lawton, P., Teed, L.L. 2025. Sponge occurrence and associated species and habitat descriptions derived from the 2021 and 2022 SCUBA diving surveys in the Eastern Shore Islands Area of Interest, Nova Scotia. Version 1.0. Fisheries and Oceans Canada. Occurrence dataset. https://ipt.iobis.org/obiscanada/resource?r=eastern_shore_islands_sponge_survey_2021_2022&v=1.0
RightsTo the extent possible under law, the publisher has waived all rights to these data and has dedicated them to the Public Domain (CC0 1.0)
Keywords Occurrence
Contacts
Creator Laura Teed
Fisheries and Oceans Canada
Contact Claire Goodwin
Huntsman Marine Science Centre
Contact Andrew Cooper
Fisheries and Oceans Canada
Contact Peter Lawton
Fisheries and Oceans Canada
Contact Laura Teed
Fisheries and Oceans Canada
Metadata Provider Laura Teed
Fisheries and Oceans Canada
Metadata Provider Andrew Cooper
Fisheries and Oceans Canada
Metadata Provider Claire Goodwin
Huntsman Marine Science Centre
Content Provider Laura Teed
Fisheries and Oceans Canada
Principal Investigator Peter Lawton
Fisheries and Oceans Canada
Principal Investigator Andrew Cooper
Fisheries and Oceans Canada
Principal Investigator Claire Goodwin
Huntsman Marine Science Centre
Principal Investigator Claire Goodwin
Principal Investigator Andrew Cooper
Principal Investigator Peter Lawton
Principal Investigator Torben Brydges
Principal Investigator Nick Jeffrey
Content Provider Laura Teed

Statistics

Occurrence records 1,044
Species level 902
Absence records 0
Event records 121
Species 71
Taxa 89
Time range -

This dataset has appeared in 28 downloads in 2025, with a total of 25,078 records.

Data quality

Dropped records

Dropped records 572
Not marine 0
No WoRMS match 571
No coordinates 6
Zero coordinates 0

Taxonomic issues

Marine unsure 0
No accepted name available 0

Missing and invalid fields

Field Missing Invalid
coordinateUncertaintyInMeters 6 0
decimalLatitude 6 0
decimalLongitude 6 0
eventDate 6 0
maximumDepthInMeters 6 0
minimumDepthInMeters 6 0
scientificNameID 0 1,616

Spatial issues

Records on land 0
More than 20 km from shore 0
Depth exceeds bathymetric depth 0

Top taxa

IUCN Red List All taxa
Scientific name Records
Tautogolabrus adspersus (Walbaum, 1792)
Phylum Chordata > Class Teleostei
60
Boltenia ovifera (Linnaeus, 1767)
Phylum Chordata > Class Ascidiacea
54
Asterias rubens Linnaeus, 1758
Phylum Echinodermata > Class Asteroidea
51
Modiolus modiolus (Linnaeus, 1758)
Phylum Mollusca > Class Bivalvia
51
Protosuberites Swartschewsky, 1905
Phylum Porifera > Class Demospongiae
49
Agarum clathratum Dumortier, 1822
Phylum Ochrophyta > Class Phaeophyceae
47
Didemnum albidum (Verrill, 1871)
Phylum Chordata > Class Ascidiacea
41
Caberea ellisii (Fleming, 1814)
Phylum Bryozoa > Class Gymnolaemata
38
Crellomima mehqisinpekonuta Goodwin, Dinn, Nefedova, Nijhof, Murillo & Nozères, 2021
Phylum Porifera > Class Demospongiae
38
Metridium senile (Linnaeus, 1761)
Phylum Cnidaria > Class Hexacorallia
37

Distribution

Records

Composition

detailed (class) simple

Data providers

Name OceanExpert ID
Fisheries and Oceans Canada
Huntsman Marine Science Centre

Occurrences

scientificNameeventDatedecimalLongitudedecimalLatitudecollectionCodecatalogNumber