FB-2705 http://www.fishbase.org/summary/SpeciesSummary.php?id=2705 Animalia Chordata Teleostei Esociformes Umbridae Dallia Dallia pectoralis Bean, 1880 Dalia a. czarna ryba Sort hundefisk Alaska-Schwarzfisch Fächerfisch Alaska blackfish Blackfish Harilik tundrakala Dallia Chernaya ryba Dalliya даллия черная рыба Alaskasvartfisk Črna senčica 阿拉斯加黑魚 阿拉斯加黑鱼 Dalia pectoralis Bean, 1880 1991-05-01 2004-04-28 Breder, C.M. and D.E. Rosen0 Modes of reproduction in fishes. T.F.H. Publications, Neptune City, New Jersey. 941 p. (Ref. 205) Robins, C.R., R.M. Bailey, C.E. Bond, J.R. Brooker, E.A. Lachner, R.N. Lea and W.B. Scott0 A list of common and scientific names of fishes from the United States and Canada. Am. Fish. Soc. Spec. Publ. (12)1-174. (Ref. 276) Wheeler, A.0 Das grosse Buch der Fische. Eugen Ulmer GmbH & Co. Stuttgart. 356 p. (Ref. 557) Berg, L.S.0 Freshwater fishes of the U.S.S.R. and adjacent countries. volume 1, 4th edition. 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(Ref. 137577) FB-GeneralDescr-2705 http://purl.org/dc/dcmitype/Text text/html Rainer Froese 1991-05-01 00:00:00 2025-12-02 00:00:00 Biology http://creativecommons.org/licenses/by-nc/3.0/ WorldFish Center - FishBase General public http://www.fishbase.org/summary/SpeciesSummary.php?id=2705 http://rs.tdwg.org/ontology/voc/SPMInfoItems#Threats Usually found in heavily vegetated swamps and ponds; occasionally in medium to large rivers and lakes with abundant vegetation (Ref. 5723). Migrations appear to be limited to inshore or upstream movements to spawning grounds in the spring and (presumably) reverse migrations to deeper water in the fall (Ref. 27547). Oviparous, batch spawner (Ref. 205). Known for their tolerance to cold water: survives exposures to -20°C for up to 40 minutes, and can survive for a few days after complete freezing of parts of the body, even the head (Ref. 28673, 28674). Uses its esophagus as auxiliary breathing organ (Ref. 27797). Page, L.M. and B.M. Burr 1991 A field guide to freshwater fishes of North America north of Mexico. Houghton Mifflin Company, Boston. 432 p. (Ref. 5723) FB-DiagnosticDescr-2705 http://purl.org/dc/dcmitype/Text text/html Cristina V. Garilao 1999-03-22 00:00:00 2017-11-15 00:00:00 http://creativecommons.org/licenses/by-nc/3.0/ WorldFish Center - FishBase General public http://www.fishbase.org/summary/SpeciesSummary.php?id=2705 http://rs.tdwg.org/ontology/voc/SPMInfoItems#Habitat Identified by its short, flattened snout, the rearward location of the dorsal and anal fins, the presence of about 33 rays in the pectorals, and the presence of a pelvic fin that has only 3 rays (Ref. 27547). Gill rakers short; lateral line with minute pores: 76 to 100 scales in midlateral series (Ref. 27547). Dorsal located far back on body; anal more or less under dorsal; edge of pectorals rounded; pelvic fins very small and located just before anus; caudal broad and rounded (Ref. 27547). Dark green or brown above and on upper sides, pale below with dark speckles; four to six irregular dark bars or blotches on sides; fins have dark brownish specklings; dorsal, anal and caudal fins with pale margin, which are pink to red in spawning adults (Ref. 27547). Morrow, J.E. 1980 The freshwater fishes of Alaska. University of. B.C. Animal Resources Ecology Library. 248p. (Ref. 27547) FB-Morphology-2705 http://purl.org/dc/dcmitype/Text text/html Cristina V. Garilao 1999-03-22 00:00:00 2017-11-15 00:00:00 http://creativecommons.org/licenses/by-nc/3.0/ WorldFish Center - FishBase General public http://www.fishbase.org/summary/SpeciesSummary.php?id=2705 http://rs.tdwg.org/ontology/voc/SPMInfoItems#Distribution Dorsal spines (total): 0; Dorsal soft rays (total): 10 - 14; Analspines: 0; Analsoft rays: 12 - 16; Vertebrae: 40 - 42 Morrow, J.E. 1980 The freshwater fishes of Alaska. University of. B.C. Animal Resources Ecology Library. 248p. (Ref. 27547) FB-Distribution-2705 http://purl.org/dc/dcmitype/Text text/html Rainer Froese 1991-05-02 00:00:00 2008-08-22 00:00:00 http://creativecommons.org/licenses/by-nc/3.0/ http://www.fishbase.org/summary/SpeciesSummary.php?id=2705 North America: Alaska from Colville River delta south to central Alaska Peninsula near Chignik; upstream in Yukon-Tanana drainage to near Fairbanks. Also Bering Sea islands and northeastern Siberia, Russia. Page, L.M. and B.M. Burr 1991 A field guide to freshwater fishes of North America north of Mexico. Houghton Mifflin Company, Boston. 432 p. (Ref. 5723) FB-Uses-2705 http://purl.org/dc/dcmitype/Text text/html Rainer Froese 1991-05-01 00:00:00 2025-12-02 00:00:00 Importance http://creativecommons.org/licenses/by-nc/3.0/ WorldFish Center - FishBase General public http://www.fishbase.org/summary/SpeciesSummary.php?id=2705 http://rs.tdwg.org/ontology/voc/SPMInfoItems#LifeCycle fisheries: subsistence fisheries; aquarium: commercial Morrow, J.E. 1980 The freshwater fishes of Alaska. University of. B.C. Animal Resources Ecology Library. 248p. (Ref. 27547) Baensch, H.A. and R. Riehl 1991 Aquarien atlas. Bd. 3. Melle: Mergus, Verlag für Natur-und Heimtierkunde, Germany. 1104 p. (Ref. 2059) FB-Migration-2705 http://purl.org/dc/dcmitype/Text text/html Rainer Froese 1991-05-01 00:00:00 2025-12-02 00:00:00 http://creativecommons.org/licenses/by-nc/3.0/ WorldFish Center - FishBase General public http://www.fishbase.org/summary/SpeciesSummary.php?id=2705 http://rs.tdwg.org/ontology/voc/SPMInfoItems#Size Potamodromous. Migrating within streams, migratory in rivers, e.g. Saliminus, Moxostoma, Labeo. Migrations should be cyclical and predictable and cover more than 100 km. Dean, E.M., A.R. Cooper, L. Wang, W. Daniel, S. David, C. Ernzen, K.B. Gido, E Hale, T.J. Haxton, W. Kelso, N. Leonard, C. Lido, J. Margraf, M. Porter, C. Pennock, D. Propst, J. Ross, M.D. Staudinger, G. Whelan and D.M. Infante 2022 The North American Freshwater Migratory Fish Database (NAFMFD): Characterizing the migratory life histories of freshwater fishes of Canada, the United States of Mexico. J. Biogeography 49:1193-1203. (Ref. 126106) FB-LifeCycle-2705 http://purl.org/dc/dcmitype/Text text/html Cristina V. Garilao 1991-05-01 00:00:00 2025-12-02 00:00:00 http://creativecommons.org/licenses/by-nc/3.0/ WorldFish Center - FishBase General public http://www.fishbase.org//Reproduction/FishReproSummary.php?ID=2705&StockCode=2901 http://rs.tdwg.org/ontology/voc/SPMInfoItems#Threats Upstream movement appears to coincide with a rise of water temperature to 10° to 15°C (Ref. 3829). Females normally contain two sets of eggs, the smaller group presumably being the set which will be spawned the following year. Females deposit 40 to 300 eggs, the number increasing with size. A female probably spawns over a period of several days, possibly longer, with only a few eggs being extruded at each spawning act. (Ref. 27547). Morrow, J.E. 1980 The freshwater fishes of Alaska. University of. B.C. Animal Resources Ecology Library. 248p. (Ref. 27547) FB-TrophicStrategy-2705 http://purl.org/dc/dcmitype/Text text/html Pascualita Sa-a 1999-09-20 00:00:00 2007-07-30 00:00:00 http://creativecommons.org/licenses/by-nc/3.0/ WorldFish Center - FishBase General public pectoralis http://rs.tdwg.org/ontology/voc/SPMInfoItems#Habitat Usually found in heavily vegetated swamps and ponds; occasionally in medium to large rivers and lakes with abundant vegetation (Ref. 5723). Migrations appear to be limited to inshore or upstream movements to spawning grounds in the spring and (presumably) reverse migrations to deeper water in the fall (Ref. 27547). Feeds on fish, zoobenthos and zooplankton (Ref. 27547). Page, L.M. and B.M. Burr 1991 A field guide to freshwater fishes of North America north of Mexico. Houghton Mifflin Company, Boston. 432 p. (Ref. 5723) FB-Size-2705 http://purl.org/dc/dcmitype/Text text/html Rainer Froese 1991-05-01 00:00:00 2025-12-02 00:00:00 Max. size http://creativecommons.org/licenses/by-nc/3.0/ FAO General public http://www.fishbase.org/summary/SpeciesSummary.php?id=2705 33.0 cm TL (male/unsexed; (Ref. 5723)); max. published weight: 366 g (Ref. 28675); max. reported age: 8 years (Ref. 12193) Page, L.M. and B.M. Burr 1991 A field guide to freshwater fishes of North America north of Mexico. Houghton Mifflin Company, Boston. 432 p. (Ref. 5723) Trent, T.T. and S.W. Kubik 1974 Studies of introduced blackfish in waters of southcentral Alaska. Alaska Dept. Fish Game. Fed. Aid Fish Restor., Ann. Rept. Performance, Study G-II. 15:81-85. (Ref. 28675) Hugg, D.O. 1996 MAPFISH georeferenced mapping database. Freshwater and estuarine fishes of North America. Life Science Software. Dennis O. and Steven Hugg, 1278 Turkey Point Road, Edgewater, Maryland, USA. (Ref. 12193) FB-Threats-2 http://purl.org/dc/dcmitype/Text text/html Belen Acosta 1990-10-18 00:00:00 2024-03-07 00:00:00 http://creativecommons.org/licenses/by-nc/3.0/ John E. Randall General public http://www.fishbase.org/summary/SpeciesSummary.php?id=2 Least Concern (LC) , IUCN Grouper and Wrasse Specialist Group IUCN 2006 2006 IUCN red list of threatened species. www.iucnredlist.org. Downloaded July 2006. FB-Habitat-2705 http://purl.org/dc/dcmitype/Text text/html Rainer Froese 1991-05-01 00:00:00 2025-12-02 00:00:00 Environment http://creativecommons.org/licenses/by-nc/3.0/ John E. Randall General public http://www.fishbase.org/summary/SpeciesSummary.php?id=2705 demersal; potamodromous (Ref. 126106); freshwater Dean, E.M., A.R. Cooper, L. Wang, W. Daniel, S. David, C. Ernzen, K.B. Gido, E Hale, T.J. Haxton, W. Kelso, N. Leonard, C. Lido, J. Margraf, M. Porter, C. Pennock, D. Propst, J. Ross, M.D. Staudinger, G. Whelan and D.M. Infante 2022 The North American Freshwater Migratory Fish Database (NAFMFD): Characterizing the migratory life histories of freshwater fishes of Canada, the United States of Mexico. J. Biogeography 49:1193-1203. (Ref. 126106)