DFO Quebec Region Mingan Archipelago Icelandic Scallop Survey 1990-2019

Study Extent

The study area is located around the Mingan Archipelago and sampling of scallop beds is carried out at depths of 8 to 136 m, generally around 40 to 60 m. / L'aire d'étude est située autour de l'archipel de Mingan et l'échantillonnage des gisements de pétoncles est effectué à des profondeurs de 8 à 136 m, généralement autour de 40 à 60 m.

Sampling

Sampling is done along transects at fixed stations in the study area. Sampling is done with a lined Digby scallop dredge (20 mm mesh) over approximately 150 m along the seabed. / L'échantillonnage est fait le long de transects à des stations fixes dans la zone d'étude. L'échantillonnage se fait avec une drague à pétoncle Digby doublée (maille de 20 mm) sur approximativement 150 m le long du fond marin.

Quality Control

The World Register of Marine Species served as the taxonomic authority to name all taxa recorded on the survey. / Le registre mondial des espèces marines a servi comme autorité taxonomique pour nommer tous les taxons enregistrés lors du relevé.

Method steps

1. The four baskets of the dredge are examined for all scallops. Next, a basket (the first on the starboard side) is sorted and examined for associated species. Most specimens are counted by taxa. The presence or relative abundance of undersized and numerous, or colonial, organisms is noted. Special cases are sometimes retained for taxonomic analysis, for example, ascidians (to monitor invasive species) and sponges (to document new species). / Les quatre paniers de la drague sont examinés pour tous les pétoncles. Ensuite, un panier (le premier du côté tribord) est trié et examiné pour les espèces associées. La plupart des spécimens sont comptés par taxon. La présence ou l’abondance relative des organismes trop petits et nombreux, ou coloniaux, est notée. Des cas particuliers sont parfois conservés pour l'analyse taxonomique, par exemple, les ascidies (pour surveiller les espèces envahissantes) et les éponges (pour documenter de nouvelles espèces).

Epibenthic invertebrates (primarily molluscs, echinoderms, and crustaceans) along with demersal fishes, as identified from the dredge samples / Invertébrés épibenthiques (principalement des mollusques, des échinodermes et des crustacés) ainsi que des poissons démersaux, tels qu'identifiés à partir des échantillons de dragage.

1. Annelida
   rank: phylum
2. Arthropoda
   rank: phylum
3. Cnidaria
   rank: phylum
4. Echinodermata
   rank: phylum
5. Mollusca
   rank: phylum
6. Porifera
   rank: phylum
7. Chordata
   rank: phylum
8. Phaeophyta
   rank: phylum
9. Rhodophyta
   rank: phylum
10. Hyas
    rank: genus
11. Crossaster papposus
    rank: species
12. Strongylocentrotus droebachiensis
    rank: species
13. Buccinum undatum
    rank: species
14. Chlamys islandica
    rank: species
15. Leptasterias (Hexasterias) polaris
    rank: species
16. Solaster endeca
    rank: species
17. Caridea
    rank: infraorder
18. Pagurus
    rank: genus
19. Asterias rubens
    rank: species
20. Cucumaria frondosa
    rank: species
21. Agarum clathratum
    rank: species
22. Ciliatocardium ciliatum
    rank: species
23. Ophiura
    rank: genus
24. Gersemia rubiformis
    rank: species
25. Cancer irroratus
    rank: species
26. Echinarachnius parma
    rank: species
27. Myoxocephalus
    rank: genus
28. Arrhoges occidentalis
    rank: species
29. Laminaria
    rank: genus
30. Henricia
    rank: genus
31. Neptunea despecta
    rank: species
32. Euspira heros
    rank: species
33. Chionoecetes opilio
    rank: species
34. Pandalus montagui
    rank: species
35. Hippoglossoides platessoides
    rank: species
36. Boltenia ovifera
    rank: species
37. Gorgonocephalus arcticus
    rank: species
38. Rajidae
    rank: family
39. Placopecten magellanicus
    rank: species
40. Glyptocephalus cynoglossus
    rank: species
41. Lycodes
    rank: genus
42. Limanda ferruginea
    rank: species
43. Heterodonta
    rank: order
44. Arctica islandica
    rank: species
45. Actiniaria
    rank: order
46. Hydrozoa
    rank: class
47. Astarte elliptica
    rank: species
48. Crangon septemspinosa
    rank: species
49. Anthozoa
    rank: class
50. Pleuronectidae
    rank: family
51. Polyplacophora
    rank: class
52. Aspidophoroides monopterygius
    rank: species
53. Hemithiris psittacea
    rank: species
54. Cardiidae
    rank: family
55. Asteroidea
    rank: class
56. Actinopterygii
    rank: class
57. Mallotus villosus
    rank: species
58. Holothuroidea
    rank: class
59. Aphrodita hastata
    rank: species
60. Liparis
    rank: genus
61. Mytilidae
    rank: family
62. Mactromeris polynyma
    rank: species
63. Ammodytes
    rank: genus
64. Gadus morhua
    rank: species
65. Astarte
    rank: genus
66. Cyrtodaria siliqua
    rank: species
67. Halocynthia pyriformis
    rank: species
68. Eumicrotremus terraenovae
    rank: species
69. Hiatella arctica
    rank: species
70. Lebbeus
    rank: genus
71. Fucus
    rank: genus
72. Sclerocrangon boreas
    rank: species
73. Lumpenidae
    rank: family
74. Polychaeta
    rank: class
75. Balanidae
    rank: family
76. Pandalus borealis
    rank: species
77. Buccinidae
    rank: family
78. Argis dentata
    rank: species
79. Pagurus acadianus
    rank: species
80. Leptagonus decagonus
    rank: species
81. Mercenaria mercenaria
    rank: species
82. Lebbeus groenlandicus
    rank: species
83. Nucula
    rank: genus
84. Buccinum
    rank: genus
85. Artediellus uncinatus
    rank: species
86. Leptoclinus maculatus
    rank: species
87. Scyphozoa
    rank: class
88. Spirontocaris spinus
    rank: species
89. Triglops murrayi
    rank: species
90. Ulvaria subbifurcata
    rank: species
91. Crangonidae
    rank: family
92. Gymnocanthus tricuspis
    rank: species
93. Myoxocephalus scorpius
    rank: species
94. Nudibranchia
    rank: order
95. Eualus
    rank: genus
96. Stichaeus punctatus
    rank: species
97. Bathypolypus bairdii
    rank: species
98. Modiolus modiolus
    rank: species
99. Mytilus edulis
    rank: species
100. Psolus
     rank: genus
101. Pholis gunnellus
     rank: species
102. Eualus fabricii
     rank: species
103. Pseudopleuronectes americanus
     rank: species
104. Lumpenus lampretaeformis
     rank: species
105. Myoxocephalus aenaeus
     rank: species
106. Lebbeus polaris
     rank: species
107. Eumesogrammus praecisus
     rank: species
108. Hemitripterus americanus
     rank: species
109. Colus
     rank: genus
110. Lucernaria quadricornis
     rank: species
111. Zoarces americanus
     rank: species
112. Hyas alutaceus
     rank: species
113. Thuiaria thuja
     rank: species
114. Margarites
     rank: genus
115. Eualus macilentus
     rank: species
116. Pteraster
     rank: genus
117. Gymnelus viridis
     rank: species
118. Boreotrophon
     rank: genus
119. Synidotea bicuspida
     rank: species
120. Astarte undata
     rank: species
121. Lycenchelys verrillii
     rank: species
122. Margarites costalis
     rank: species
123. Icelus bicornis
     rank: species
124. Artediellus atlanticus
     rank: species
125. Brachyura
     rank: infraorder
126. Lithophyllum
     rank: genus
127. Agonidae
     rank: family
128. Harmothoe
     rank: genus
129. Liparis bathyarcticus
     rank: species
130. Ascidiacea
     rank: class
131. Zoarcidae
     rank: family
132. Hirudinea
     rank: class
133. Pteraster militaris
     rank: species
134. Securiflustra securifrons
     rank: species
135. Musculus discors
     rank: species
136. Spirontocaris liljeborgii
     rank: species
137. Epitoniidae
     rank: family
138. Buccinum terraenovae
     rank: species
139. Pandalus
     rank: genus
140. Pycnogonida
     rank: class
141. Ctenodiscus crispatus
     rank: species
142. Hyas araneus
     rank: species
143. Hippoglossus hippoglossus
     rank: species
144. Plicifusus kroyeri
     rank: species
145. Yoldia
     rank: genus
146. Serripes groenlandicus
     rank: species
147. Ensis leei
     rank: species
148. Gastropoda
     rank: class
149. Onchidiopsis corys
     rank: species
150. Nereididae
     rank: family
151. Psolus fabricii
     rank: species
152. Anonyx
     rank: genus
153. Aulacofusus brevicauda
     rank: species
154. Rossia
     rank: genus
155. Nuculana
     rank: genus
156. Ascidia
     rank: genus
157. Amphipoda
     rank: order
158. Crenella faba
     rank: species
159. Anomiidae
     rank: family
160. Naticidae
     rank: family
161. Cyclocardia borealis
     rank: species
162. Crenella
     rank: genus
163. Styela rustica
     rank: species
164. Cryptonatica affinis
     rank: species
165. Styela
     rank: genus
166. Musculus
     rank: genus
167. Bivalvia
     rank: class
168. Solariella
     rank: genus
169. Buccinum scalariforme
     rank: species
170. Musculus niger
     rank: species
171. Ariadnaria borealis
     rank: species
172. Pyramidellidae
     rank: family
173. Icelus spatula
     rank: species
174. Admete viridula
     rank: species
175. Euspira
     rank: genus
176. Ptilota serrata
     rank: species
177. Colus stimpsoni
     rank: species
178. Eusirus cuspidatus
     rank: species
179. Sebastes
     rank: genus
180. Didemnum
     rank: genus
181. Myoxocephalus octodecemspinosus
     rank: species
182. Phycodrys rubens
     rank: species
183. Anarhichas lupus
     rank: species
184. Ascophyllum nodosum
     rank: species
185. Harmothoe imbricata
     rank: species
186. Tonicellidae
     rank: family
187. Cyclopterus lumpus
     rank: species
188. Polynoidae
     rank: family
189. Stomphia coccinea
     rank: species
190. Psolus phantapus
     rank: species
191. Cnemidocarpa finmarkiensis
     rank: species
192. Macoma calcarea
     rank: species
193. Scabrotrophon fabricii
     rank: species
194. Botrylloides aureus
     rank: species
195. Dendrodoa pulchella
     rank: species
196. Eusiridae
     rank: family
197. Synoicum pulmonaria
     rank: species
198. Melitidae
     rank: family
199. Actiniidae
     rank: family
200. Dendronotus
     rank: genus
201. Opheliidae
     rank: family
202. Metridium senile
     rank: species
203. Dendronotus frondosus
     rank: species
204. Ekmania barthii
     rank: species
205. Stenosemus albus
     rank: species
206. Buccinum glaciale
     rank: species
207. Stegophiura nodosa
     rank: species
208. Astarte borealis
     rank: species
209. Neogastropoda
     rank: order
210. Golfingia
     rank: genus
211. Tachyrhynchus erosus
     rank: species
212. Amicula vestita
     rank: species
213. Paramphithoe hystrix
     rank: species
214. Patellogastropoda
     rank: subclass
215. Mya arenaria
     rank: species
216. Leptasterias
     rank: genus
217. Mesodesma arctatum
     rank: species
218. Anonyx nugax
     rank: species
219. Ophiacantha bidentata
     rank: species
220. Ophiopholis aculeata
     rank: species
221. Nemertea
     rank: class
222. Celleporina
     rank: genus
223. Astarte montagui
     rank: species
224. Terebellidae
     rank: family
225. Ampelisca
     rank: genus
226. Polymastia
     rank: genus
227. Dendrodoa carnea
     rank: species
228. Dendronotus elegans
     rank: species
229. Strongylocentrotus pallidus
     rank: species
230. Maera loveni
     rank: species
231. Nephtys
     rank: genus
232. Cladocroce spatula
     rank: species
233. Mycale (Mycale) lingua
     rank: species
234. Nuculana pernula
     rank: species
235. Ophiura sarsii
     rank: species
236. Ophiura robusta
     rank: species
237. Terebratulina septentrionalis
     rank: species
238. Megayoldia thraciaeformis
     rank: species
239. Ophiuroidea
     rank: class
240. Pagurus arcuatus
     rank: species
241. Pagurus pubescens
     rank: species
242. Reinhardtius hippoglossoides
     rank: species
243. Demospongiae
     rank: class
244. Margarites groenlandicus
     rank: species
245. Doridoxa walteri
     rank: species
246. Boltenia echinata
     rank: species
247. Drifa glomerata
     rank: species
248. Euspira pallida
     rank: species
249. Volutopsius norwegicus
     rank: species

Mingan Archipelago in the northern Gulf of St Lawrence / Archipel de Mingan dans le nord du golfe du Saint-Laurent.