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Cusk (fish)

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612:(DFO) considers this species endangered based on a 2012 Committee on the Status of Endangered Wildlife in Canada assessment. The status report identified that catches of cusk in the DFO summer bottom-trawl survey had declined by roughly 90% from 1970 to the late 1990s. A landings limit of 1000 mt was put in place in 1999 in the 4X North American Fisheries Organization area and was further restricted to 750 t and expanded to include the 4VWX5Z NAFO areas in 2003. Cusk are still commonly caught as bycatch in the longline and lobster fisheries and can be found in supermarkets in Atlantic Canada despite its threatened status. A study that was conducted in the Gulf of Maine region showed that the conservation status of cusk was partly dependent on future greenhouse gas emissions. Higher emissions showed greater habitat reduction, as much as 80% by the end of the century. 399:; they are continuous at the base, but separated by very deep notches so that they are obviously distinct. Moreover, the caudal fin is evenly rounded. It is variable in color, from slate to reddish brown above, and paling to gray on the lower sides and underneath. Older fish are usually plain-colored, while the young often have transverse yellow bands on their sides. Their maximum length is about 4 ft (120 cm) and top weight is about 45 lb (20 kg). The IGFA world record stands at 37 lb 14 oz (17,20 kg), caught by Anders Jonasson outside Sørøya in northern Norway. 55: 555: 509: 593: 342: 42: 188: 858: 500:
Studies conducted in Western Norway, Central Europe, and the Mediterranean have shown that mercury concentrations within fish are highest in wild-marine fish, which sometimes exceed food-safety guidelines of 500 ÎĽg/kg, whereas wild-freshwater and farmed fish have less mercury within their
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It spawns in the spring and summer, usually between April and early July. A medium-sized female has been known to produce more than two million buoyant eggs. The young live near the surface until they are about 2 in (5 cm) long, and then seek out rocky ocean floors in deep water.
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coast, and most of them are caught during the winter and spring. The commercial catch individuals run between 1 and 2 feet long (30–60 cm), and average about 5 lb (2 kg). It is an excellent food fish. It is marketed as fresh or frozen fillets; a part of the catch is
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system. This is probably due to the fact that most mercury first enters rivers from inland sources and then accumulates in marine environments where the cusk live. In addition to this, it has also been shown that mercury concentrations are higher within
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Hare, Jonathan; Manderson, John; Nye, Janet; Alexander, Michael; Auster, Peter; Borggaard, Diane; Capotondi, Antonietta; Damon-Randall, Kimberly; Heupel, Eric; Mateo, Ivan; O'Brien, Loretta; Richardson, David; Stock, Charles; Biegel, Sarah (2012).
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Zupo, Valerio; Graber, Gunnar; Kamel, Samar; Plichta, Veronika; Granitzer, Sebastian; Gundacker, Claudia; Wittmann, Karl J. (December 2019). "Mercury accumulation in freshwater and marine fish from the wild and from aquaculture ponds".
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It is normally found in water deeper than 600 ft (200 m), and practically always is taken over rough bottoms where rocks, ledges, or gravel are common. Good fishing areas are usually much more limited than is the case with
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Knutsen, H.; Jorde, P. E.; Sannaes, H.; Hoelzel, R. A.; Bergstad, O. A.; Stefanni, S.; Johansen, T.; Stenseth, N. C. (2009). "Bathymetric barriers promoting genetic structure in the deepwater demersal fish tusk
438:. This suggests deep-water areas are barriers for adult movements, and though they have pelagic eggs and larvae, dispersal during early life stages is not effective over long distances. 623:, has some concerns regarding its conservation status and current threats, but for which insufficient information is available to indicate a need to list the species under the 746:"Tracing Mercury Pollution along the Norwegian Coast via Elemental, Speciation, and Isotopic Analysis of Liver and Muscle Tissue of Deep-Water Marine Fish (Brosme brosme)" 627:. On March 9, 2007, the National Marine Fisheries Service announced the initiation of a status review to determine whether the species warrants listing under the act. 434:
Cusk show little genetic differentiation over large distances, except where populations are surrounded by deep-water areas, namely on the Mid-Atlantic Ridge and the
1106: 497:. Cusk are a food source for many other organisms, so the toxins they accumulate over time directly affect any other organism that consumes them, including humans. 1158: 1080: 1119: 1281: 1197: 1276: 1054: 905:"Cusk (Brosme brosme) and climate change: assessing the threat to a candidate marine fish species under the US Endangered Species Act" 1266: 1171: 260: 1223: 678: 1286: 1271: 1261: 651: 1124: 1145: 744:
Rua-Ibarz, Ana; Bolea-Fernandez, Eduardo; Maage, Amund; Frantzen, Sylvia; Sanden, Monica; Vanhaecke, Frank (2019-02-19).
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rather than coastal and open areas. This is likely due to the morphology of the fjords, or to local human activity.
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Endangered and Threatened Species; Initiation of a Status Review under the Endangered Species Act for Cusk
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Cusk are primarily fished on the North American North Atlantic coastal shelf near the American state of
318: 160: 1228: 1015: 757: 411:, mostly in moderately deep water. On the North American coast, it is regularly found southward to 1137: 1006: 840: 723: 566: 428: 200: 49: 1111: 1210: 832: 793: 785: 715: 478: 1251: 1215: 916: 824: 775: 765: 707: 486: 619:, which are those species about which the National Oceanic and Atmospheric Administration, 1184: 490: 761: 485:(MeHg), which is one of the most toxic species of mercury compounds. MeHg is subject to 408: 177: 137: 96: 1245: 844: 711: 647: 573: 482: 329: 727: 554: 387:
It is easily distinguished at a glance from other cod-like fish, as it has only one
592: 539: 508: 435: 419:. Its maximum range covers most of the North Atlantic, including the waters around 828: 1150: 1132: 1093: 1000: 581: 470: 187: 133: 1020: 616: 1176: 535: 416: 392: 388: 341: 106: 1059: 991: 921: 904: 789: 17: 1041: 770: 745: 474: 461:, which is also called the "freshwater cusk", of a different Lotidae genus. 66: 836: 797: 719: 41: 1189: 1067: 985: 892:(PDF) - Fisheries and Oceans Canada report on the state of cusk fisheries 780: 660: 577: 494: 412: 396: 86: 624: 1085: 875: 543: 531: 451: 447: 420: 362: 116: 1098: 1072: 586: 502: 458: 424: 76: 962: 1046: 591: 562: 553: 507: 340: 1202: 966: 391:. Also characteristic of the fish is the nature of its dorsal, 597: 481:(Hg). Within aquatic ecosystems, mercury can get converted to 454:. It is an offshore fish and rarely is one taken in a harbor. 443: 358: 345:
Brosme for sale at the fish market in Bergen, Norway, in 2012
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species, and is sluggish and a rather weak swimmer. It eats
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statistics. The highest catch was 55,000 tonnes in 1980.
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Mercury trophic transfer within an aquatic environment.
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Federal Register;; v72, (March 9, 2007), 10710-10711.
975: 580:account for most of the commercial catch off the 576:, cusk are chiefly taken on hook and line. Line 615:Cusk is a US National Marine Fisheries Service 596:Global annual cusk catches in 1950-2003 from 8: 963: 642: 640: 473:animals, the cusk is directly affected by 186: 40: 31: 920: 779: 769: 688: 686: 636: 407:It is distributed on both sides of the 859:"COSEWIC Species Database : Cusk" 750:Environmental Science & Technology 365:. It is the only species in the genus 7: 809: 807: 739: 737: 457:It should not be confused with the 25: 957:The Wise Fishermen's Encyclopedia 621:National Marine Fisheries Service 371:. Its other common names include 874:COSEWIC Species Database: Cusk. 712:10.1111/j.1365-294X.2009.04253.x 679:Agriculture and Agri-Food Canada 53: 427:coast. It is also found on the 195:Distribution of cusk (in blue) 909:ICES Journal of Marine Science 677:Fish and seafood fact sheets. 361:-like fish in the ling family 1: 1282:Taxa named by Peter Ascanius 829:10.1016/j.envpol.2019.112975 610:Fisheries and Oceans Canada 1303: 1277:Fish of the North Atlantic 206: 199: 194: 185: 166: 159: 50:Scientific classification 48: 39: 34: 1267:Fauna of Atlantic Canada 887:SARA registry report on 650:; Pauly, Daniel (eds.). 403:Distribution and habitat 817:Environmental Pollution 771:10.1021/acs.est.8b04706 1287:Fish described in 1772 922:10.1093/icesjms/fss160 625:Endangered Species Act 601: 558: 538:and other soft-bodied 513: 357:) is a North Atlantic 346: 1272:Fish of the North Sea 1262:Marine fish of Europe 595: 557: 511: 415:and occasionally off 344: 955:E. C. Raney "Cusk." 762:2019EnST...53.1776R 664:. May 2006 version. 605:Conservation status 326:Brosmius americanus 268:Brosmius flavescens 617:species of concern 602: 567:Canadian Maritimes 559: 514: 429:Mid-Atlantic Ridge 347: 279:Brosmerus flavesny 227:Enchelyopus brosme 1239: 1238: 1211:Open Tree of Life 969:Taxon identifiers 706:(15): 3151–3162. 700:Molecular Ecology 550:Fishing technique 530:It is strictly a 339: 338: 333: 322: 311: 306:Brosmius vulgaris 302: 291: 287:Brosmius flavesny 283: 275: 264: 253: 242: 231: 223: 214: 141: 16:(Redirected from 1294: 1232: 1231: 1219: 1218: 1206: 1205: 1193: 1192: 1180: 1179: 1167: 1166: 1154: 1153: 1151:NBNSYS0000179935 1141: 1140: 1128: 1127: 1115: 1114: 1102: 1101: 1089: 1088: 1076: 1075: 1063: 1062: 1050: 1049: 1037: 1036: 1024: 1023: 1011: 1010: 1009: 996: 995: 994: 964: 943: 933: 927: 926: 924: 899: 893: 884: 878: 873: 871: 870: 861:. Archived from 855: 849: 848: 823:(Pt 1): 112975. 811: 802: 801: 783: 773: 756:(4): 1776–1785. 741: 732: 731: 690: 681: 672: 666: 665: 644: 487:biomagnification 469:Like many other 328: 317: 315:Brosmius scotica 309: 297: 295:Brosmus vulgaris 289: 281: 270: 259: 248: 237: 230:(Ascanius, 1772) 229: 221: 212: 190: 172: 132: 58: 57: 44: 32: 21: 1302: 1301: 1297: 1296: 1295: 1293: 1292: 1291: 1257:Commercial fish 1242: 1241: 1240: 1235: 1227: 1222: 1214: 1209: 1201: 1196: 1188: 1185:Observation.org 1183: 1175: 1170: 1162: 1157: 1149: 1144: 1136: 1131: 1123: 1118: 1110: 1105: 1097: 1092: 1084: 1079: 1071: 1066: 1058: 1053: 1045: 1040: 1032: 1027: 1019: 1014: 1005: 1004: 999: 990: 989: 984: 971: 952: 950:Further reading 947: 946: 934: 930: 901: 900: 896: 885: 881: 868: 866: 857: 856: 852: 813: 812: 805: 743: 742: 735: 692: 691: 684: 673: 669: 646: 645: 638: 633: 607: 552: 532:bottom-dwelling 528: 519: 491:bioaccumulation 467: 405: 385: 290:(Lesueur, 1819) 222:Ascanius, 1772) 218:Brosmius brosme 181: 174: 168: 155: 131: 52: 28: 27:Species of fish 23: 22: 15: 12: 11: 5: 1300: 1298: 1290: 1289: 1284: 1279: 1274: 1269: 1264: 1259: 1254: 1244: 1243: 1237: 1236: 1234: 1233: 1220: 1207: 1194: 1181: 1168: 1155: 1142: 1129: 1116: 1103: 1090: 1077: 1064: 1051: 1038: 1025: 1012: 997: 981: 979: 973: 972: 967: 961: 960: 951: 948: 945: 944: 928: 894: 879: 850: 803: 733: 682: 667: 648:Froese, Rainer 635: 634: 632: 629: 606: 603: 551: 548: 527: 524: 518: 515: 493:within marine 466: 463: 409:North Atlantic 404: 401: 384: 381: 337: 336: 335: 334: 323: 312: 310:Fleming, 1828) 303: 292: 284: 276: 265: 257:Blennius torsk 254: 243: 232: 224: 215: 213:Ascanius, 1772 204: 203: 197: 196: 192: 191: 183: 182: 175: 164: 163: 157: 156: 152:B. brosme 149: 147: 143: 142: 124: 120: 119: 114: 110: 109: 104: 100: 99: 97:Actinopterygii 94: 90: 89: 84: 80: 79: 74: 70: 69: 64: 60: 59: 46: 45: 37: 36: 26: 24: 14: 13: 10: 9: 6: 4: 3: 2: 1299: 1288: 1285: 1283: 1280: 1278: 1275: 1273: 1270: 1268: 1265: 1263: 1260: 1258: 1255: 1253: 1250: 1249: 1247: 1230: 1225: 1221: 1217: 1212: 1208: 1204: 1199: 1195: 1191: 1186: 1182: 1178: 1173: 1169: 1165: 1160: 1156: 1152: 1147: 1143: 1139: 1134: 1130: 1126: 1121: 1117: 1113: 1108: 1104: 1100: 1095: 1091: 1087: 1082: 1078: 1074: 1069: 1065: 1061: 1056: 1052: 1048: 1043: 1039: 1035: 1030: 1026: 1022: 1017: 1013: 1008: 1007:Brosme brosme 1002: 998: 993: 987: 983: 982: 980: 978: 977:Brosme brosme 974: 970: 965: 958: 954: 953: 949: 942: 938: 932: 929: 923: 918: 914: 910: 906: 898: 895: 891: 890: 883: 880: 877: 865:on 2014-02-02 864: 860: 854: 851: 846: 842: 838: 834: 830: 826: 822: 818: 810: 808: 804: 799: 795: 791: 787: 782: 781:11250/2636594 777: 772: 767: 763: 759: 755: 751: 747: 740: 738: 734: 729: 725: 721: 717: 713: 709: 705: 701: 697: 696:Brosme brosme 689: 687: 683: 680: 676: 671: 668: 663: 662: 657: 655: 654:Brosme brosme 649: 643: 641: 637: 630: 628: 626: 622: 618: 613: 611: 604: 599: 594: 590: 588: 583: 579: 575: 574:Gulf of Maine 570: 568: 564: 556: 549: 547: 545: 541: 540:invertebrates 537: 533: 525: 523: 516: 510: 506: 504: 498: 496: 492: 488: 484: 483:methylmercury 480: 476: 472: 464: 462: 460: 455: 453: 449: 445: 439: 437: 432: 430: 426: 422: 418: 414: 410: 402: 400: 398: 394: 390: 382: 380: 378: 374: 373:European cusk 370: 369: 364: 360: 356: 355:Brosme brosme 352: 343: 331: 327: 324: 320: 316: 313: 307: 304: 300: 296: 293: 288: 285: 282:Lesueur, 1819 280: 277: 273: 269: 266: 262: 258: 255: 251: 247: 244: 240: 236: 233: 228: 225: 219: 216: 211: 208: 207: 205: 202: 198: 193: 189: 184: 179: 173: 171: 170:Brosme brosme 165: 162: 161:Binomial name 158: 154: 153: 148: 145: 144: 139: 135: 130: 129: 125: 122: 121: 118: 115: 112: 111: 108: 105: 102: 101: 98: 95: 92: 91: 88: 85: 82: 81: 78: 75: 72: 71: 68: 65: 62: 61: 56: 51: 47: 43: 38: 33: 30: 19: 18:Brosme brosme 976: 956: 940: 936: 931: 915:(10): 1764. 912: 908: 897: 888: 882: 867:. Retrieved 863:the original 853: 820: 816: 753: 749: 703: 699: 695: 670: 659: 653: 614: 608: 571: 560: 529: 520: 499: 468: 456: 440: 436:Rockall Bank 433: 406: 386: 376: 372: 367: 366: 354: 350: 348: 325: 314: 305: 294: 286: 278: 267: 256: 245: 234: 226: 217: 210:Gadus brosme 209: 169: 167: 151: 150: 127: 126: 29: 1133:NatureServe 1094:iNaturalist 1001:Wikispecies 582:New England 536:crustaceans 383:Description 235:Gadus torsk 1246:Categories 869:2014-01-23 631:References 417:New Jersey 389:dorsal fin 246:Gadus lubb 239:Bonnaterre 107:Gadiformes 845:201226087 790:0013-936X 495:food webs 475:pollution 465:Pollution 425:Norwegian 397:anal fins 250:Euphrasen 146:Species: 73:Kingdom: 67:Eukaryota 1138:2.101012 1112:10144920 1068:FishBase 986:Wikidata 837:31541831 798:30652479 728:27898655 720:19549108 661:FishBase 565:and the 544:mollusks 423:and the 413:Cape Cod 377:brosmius 319:Swainson 261:Lacepède 201:Synonyms 178:Ascanius 113:Family: 87:Chordata 83:Phylum: 77:Animalia 63:Domain: 1252:Lotidae 1086:2415505 992:Q850056 876:COSEWIC 758:Bibcode 572:In the 479:mercury 452:pollock 448:haddock 421:Iceland 363:Lotidae 299:Fleming 272:Lesueur 180:, 1772) 140:), 1817 123:Genus: 117:Lotidae 103:Order: 93:Class: 1229:126447 1216:863699 1203:126447 1190:644363 1125:164740 1099:215458 1060:124019 1047:BROSBR 1021:Brosme 959:(1951) 935:NMFS. 843:  835:  796:  788:  726:  718:  587:smoked 578:trawls 517:Habits 503:fjords 471:marine 459:burbot 395:, and 393:caudal 375:, and 368:Brosme 332:, 1863 321:, 1839 301:, 1828 274:, 1819 263:, 1800 252:, 1794 241:, 1788 138:Cuvier 128:Brosme 1224:WoRMS 1164:81638 1107:IRMNG 1055:EUNIS 1034:52756 841:S2CID 724:S2CID 563:Maine 450:, or 35:Cusk 1198:OBIS 1177:cusk 1172:NOAA 1159:NCBI 1120:ITIS 1081:GBIF 1042:EPPO 1029:BOLD 889:Cusk 833:PMID 794:PMID 786:ISSN 716:PMID 698:)". 675:Cusk 542:and 526:Diet 489:and 351:cusk 349:The 330:Gill 136:(ex 134:Oken 1146:NBN 1016:ADW 917:doi 825:doi 821:255 776:hdl 766:doi 708:doi 598:FAO 444:cod 359:cod 1248:: 1226:: 1213:: 1200:: 1187:: 1174:: 1161:: 1148:: 1135:: 1122:: 1109:: 1096:: 1083:: 1073:51 1070:: 1057:: 1044:: 1031:: 1018:: 1003:: 988:: 913:69 911:. 907:. 839:. 831:. 819:. 806:^ 792:. 784:. 774:. 764:. 754:53 752:. 748:. 736:^ 722:. 714:. 704:18 702:. 685:^ 658:. 639:^ 589:. 569:. 546:. 446:, 431:. 379:. 939:. 925:. 919:: 872:. 847:. 827:: 800:. 778:: 768:: 760:: 730:. 710:: 694:( 656:" 652:" 353:( 308:( 220:( 176:( 20:)

Index

Brosme brosme

Scientific classification
Edit this classification
Eukaryota
Animalia
Chordata
Actinopterygii
Gadiformes
Lotidae
Brosme
Oken
Cuvier
Binomial name
Ascanius

Synonyms
Bonnaterre
Euphrasen
Lacepède
Lesueur
Fleming
Swainson
Gill

cod
Lotidae
dorsal fin
caudal
anal fins

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