DFO Quebec Region Magdalen Islands Sea Scallop Survey 1992-2019

URLhttps://ipt.iobis.org/obiscanada/resource?r=dfo_que_idm_pm
Repository URL http://ipt.vliz.be/obiscanada/
Node OBIS Canada
Published2023-11-21 16:12
First registered2023-06-06 18:24
Abstract

A research survey of scallops (mainly sea scallop Placopecten magellanicus, but also Icelandic Scallop Chlamys islandica) using a dredge was carried out by DFO (Fisheries and Oceans Canada) every 1 or 2 years since 1992 in the Magdalen Islands (fishing area 20). The main objective of this research survey was to assess Sea Scallop stocks. Another objective was to document taxa associated with scallop habitat according to a fixed random sampling plan. Occurrences by species (or taxon) are presented by station. The taxonomic and geographical validity of the data was checked and the World Register of Marine Species served as the taxonomic authority for naming all taxa recorded during the survey. Epibenthic invertebrates (mainly molluscs, echinoderms and crustaceans) as well as demersal fish were identified from the dredge catches. / Un relevé de recherche sur les pétoncles (principalement le pétoncle géant Placopecten magellanicus, mais aussi le pétoncle d’Islande Chlamys islandica) effectué à l'aide d'une drague a été réalisé par le MPO (Pêches et Océans Canada) tous les 1 ou 2 ans depuis 1992 aux Îles-de-la-Madeleine (zone de pêche 20). L'objectif principal de ce relevé de recherche était d'évaluer les stocks de pétoncle géant. Un autre objectif était de documenter les taxons dans la capture associée à l'habitat de pétoncle selon un plan d'échantillonnage aléatoire fixe. Les occurrences par espèce (ou taxon) sont présentées par station. La validité taxonomique et géographique des données a été vérifiée et le registre mondial des espèces marines a servi d'autorité taxonomique pour nommer tous les taxons enregistrés lors du relevé. Les invertébrés épibenthiques (principalement des mollusques, échinodermes et crustacés) ainsi que des poissons démersaux ont été identifiés à partir des captures de la drague.

CitationBelley, R, Boulanger M-P, Roy V, Sean A-S, Nozères C (2023). DFO Quebec Region Magdalen Islands Sea Scallop Survey. Version 1.0. Fisheries and Oceans Canada. Occurrence dataset. https://ipt.iobis.org/obiscanada/resource?r=dfo_que_idm_pm&v=1.0
RightsThis work is licensed under a Creative Commons Attribution (CC-BY) 4.0 License
Keywords Occurrence, Occurrence, samplingEvent
Contacts
Creator Claude Nozères
Fisheries and Oceans Canada
Contact Rénald Belley
Fisheries and Oceans Canada
Metadata Provider Claude Nozères
Fisheries and Oceans Canada
Principal Investigator Rénald Belley
Fisheries and Oceans Canada
Anne-Sara Sean
Fisheries and Oceans Canada
Virginie Roy
Fisheries and Oceans Canada
Custodian Steward Claude Nozères
Fisheries and Oceans Canada
Marie-Pier Boulanger
Fisheries and Oceans Canada
Principal Investigator Rénald Belley
Anne-Sara Sean
Virginie Roy
Custodian Steward Claude Nozèeres
Distributor Marie-Pier Boulanger

Statistics

Occurrence records 23,520
Species level 16,726
Absence records 0
Event records 1,650
MoF records 0
Sequence records 0
Species 109
Taxa 178
Time range 1992 - 2019

This dataset has appeared in 1,492 downloads in 2025, with a total of 16,036,231 records.

Data quality

Dropped records

Dropped records 0
Not marine 0
No WoRMS match 0
No coordinates 0
Zero coordinates 0

Taxonomic issues

Marine unsure 0
No accepted name available 0

Missing and invalid fields

Field Missing Invalid
maximumDepthInMeters 147 0
minimumDepthInMeters 147 0

Spatial issues

Records on land 0
More than 20 km from shore 0
Depth exceeds bathymetric depth 10

Top taxa

IUCN Red List All taxa
Scientific name Records
Placopecten magellanicus (Gmelin, 1791)
Phylum Mollusca > Class Bivalvia
1,972
Cancer irroratus Say, 1817
Phylum Arthropoda > Class Malacostraca
1,626
Cucumaria frondosa (Gunnerus, 1767)
Phylum Echinodermata > Class Holothuroidea
1,266
Crossaster papposus (Linnaeus, 1767)
Phylum Echinodermata > Class Asteroidea
1,166
Asterias rubens Linnaeus, 1758
Phylum Echinodermata > Class Asteroidea
1,148
Echinarachnius parma (Lamarck, 1816)
Phylum Echinodermata > Class Echinoidea
1,135
Leptasterias (Hexasterias) polaris (Müller & Troschel, 1842)
Phylum Echinodermata > Class Asteroidea
1,052
Myzopsetta ferruginea (Storer, 1839) VU
Phylum Chordata > Class Teleostei
1,025
Rhodophyta Wettstein, 1901
Phylum Rhodophyta
1,023
Pagurus Fabricius, 1775
Phylum Arthropoda > Class Malacostraca
995

Distribution

Records

Composition

detailed (class) simple

Occurrences

scientificNameeventDatedecimalLongitudedecimalLatitudecollectionCodecatalogNumber