Unformatted text preview:

Groundfish (continued) 1. Walleye Pollock 2. Pacific Cod 3. Blackcod 4. Rockfish 5. FlatfishArrowtooth Flounder Atheresthes stomias 1. Range - San Simeon to Bering Sea 2. Size - to 86 cm and 7.7 kg 3. 2007 Harvest: - 37,034 mt 4. Depth - Soft Bottom 50-300 m 5. Behavior - Often Co-Mingle with Halibut Huge and Growing Biomass 6. Harvest Gear - Benthic Otter TrawlArrowtooth Flounder IIArrowtooth Flounder IIIShallow Water Flatfish Complex Yellowfin Sole English SoleYellowfin Sole Limanda aspera 1. Range - Vancouver Island to Beaufort Sea 2. Size - 49 cm to 1.8 kg. 3. 2007 Harvest - 121,077 mt. 4. Depth - Benthic Soft Bottom to 150 m 5. Harvest Gear - Benthic Otter TrawlYellowfin Sole IIEnglish Sole Pleuronectes vutulus 1. Range - Central Baja to Nunivak Island 2. Size - Average Catch 36 cm 3. 2007 Harvest - 95 mt. 4. Depth - Benthic Soft Bottom < 250 m 5. Harvest Gear - Benthic Otter TrawlEnglish Sole IIEnglish Sole IIIDeep Water Flatfish Complex Dover Sole Microstomus pacificus Greenland Turbot Reinhardtius hippoglossoides Deepsea Sole Embassichths bathybusGreenland Turbot Reinhardtius hippoglossoides 1. Range: - Baja California to Chukchi Sea 2. Size: - Average Catch 64 cm, 2.3-4.1 kg 3. 2007 Harvest: - 2,068 mt 4. Depth: - Benthic Sand Bottom 50-650 m 5. Harvest Gear: - Longline & Benthic Otter TrawlGreenland Turbot IIDover Sole Microstomus pacificus 1. Range - Baja to Bering Sea 2. Size - average size 43 cm 3. 2007 Harvest - 116 t 4. Depth - Soft Bottom to 1500 m 5. Harvest Gear - Benthic Otter TrawlDover Sole IIDover Sole IIISupplementary Reading Material 1. List Alaskan Delivered Species 2. List Alaskan Processors 3. List Sebastes Species 4. NPFMC BSAI Groundfish 5. NPFMC GOA GroundfishPacific Salmon 5 Species Harvested in Alaska All are in the Genus Oncorhynchus King (chinook) Oncorhynchus tshawytscha Silver (coho) Oncorhynchus kisutch Red (sockeye) Oncorhynchus nerka Dog (chum) Oncorhynchus keta Pink (humpy) Oncorhynchus gorbuschaPacific Salmon II Steelhead or rainbow trout Oncorhynchus mykiss Cut-Throat trout is Oncorhynchus clarki Dolly Varden (a related species) is Savelinus malma Atlantic Salmon Salmo salarKing SalmonKing Salmon IISilver SalmonSilver Salmon IIRed SalmonRed Salmon IIDog SalmonDog Salmon IIPink SalmonPink Salmon IIOther Commercial Fish Species Pacific Halibut Molluscs Bivalves 6 species Snails 2 species Crustaceans Crabs 7 species Shrimp 5 speciesPacific Halibut Hippoglossus stenolepis1. Largest and Most Valuable Fish in Alaska 2. Harvester’s Receive up to $4.50 per lb. 3. IFQ Species, IFQs sell for 3-4x landed price 4. Largest Fish are Females 5. Can Become Entrapped in Pots - Flesh Eaten by Sand Fleas (amphipods) 6. Prohibited Species - Over Bycatch Quota All Trawl Fisheries ClosedPacific Halibut Harvest Gear 1. No Trawl or Pot Fishery 2. Commercial Harvest by Longline 3. Charter Fleet - Rod & Reel 4. Sports Recreational - Rod & Reel 5. Subsistence - Longline and Rod & Reel 6. Quota Allocation Between: NPFMC IPHC and Alaska Board of FishPacific Halibut Range Baja to Chukchi SeaPacific Halibut Harvest 2007: - 29,623 mt.Pacific Halibut Size Length to 105 inches - 8.75 ft. Weight to 226 kg - 500 lbsPacific Halibut IIIAlaskan Commercial Molluscs Bivalves: Scallops: Patinopectin caurinus Mussels: Mytilus trossulus Cultured Oyster: Crassostrea gigas Recreational Clams: razor, manilla, Other Molluscs Abalone: Haliotis kamtschatkana Snail: Neptunia sp. BuccinidsWeathervane Scallops 1. Scientific Name: Patinopectin caurinus 2. Mature 3-4 yrs - Harvested 6-8 yrs 3. Fast Swimmers - Via Valve Clapping 4. Have Many Eyes - Can Spot Predators 5. Habitat: Sand, Gravel, Rocks 50-200 m. 6. 2007 Harvest - 275 mtWeathervane Scallop IIWeathervane Scallop IIIWeathervane Scallop IVWeathervane Scallop VWeathervane Scallop VIOther Molluscs 56 Licensed Shellfish Farms in Alaska Farmed Oysters - Mostly S. Central, S. East Main Species: Crassostrea gigas Farmed Blue Mussels - Mytilus trossulus 1 Oyster Hatchery, 2 Nurseries in State Cold Waters - Long Growth Period High Quality Product vs Cost Effectiveness?Crassostrea gigasRazor Clam: Siliqua patulaGeoduckManila ClamMytilus trossulusPinto AbaloneBuccinid SnailsAlaskan Commercial Crabs King: Red: Paralithodes camtschaticus Blue: Paralithodes platypus Golden: Lithodes aequispinus Tanner: Chionoecetes bairdi Snow: Chionoecetes opilio Dungeness: Cancer magister Hair Crab: Erimacrus isenbeckiiAlaskan Commercial Shrimp Sidestripe: Pandalopsis dispar Pink: Pandalus borealis Coonstripe: Pandalus danae Humpbacked: Pandalus hypsinotus Spot Prawn: Pandalus platycerosKing Crab 1. Complex Life History - Pelagic Larvae 2. Mature 4-5 yrs 3. 1978-1979 Harvest RKC - 83,200 mt. 4. 2007 Harvest - 9,225 mt. 5. Juveniles are Cannibalistic 6. Larvae Settle on Filamentous Material 7. Deadliest CatchSetting Crab PotsRed King Crab IRed King Crab IIBlue King CrabTanner & Snow Crab 1. Chionoecetes bairdi - Tanner 2007 - 2,545 mt 2. Chionoecetes opilio - Snow 2007 - 28,635 mt 3. Mating: Males Clasp Females until Molt 4. Large Pods, Spherical Mating Aggregations 5. Females Mature 5 yrs, Males 6 yrsOpilio (Snow) Crab IOpilio (Snow) Crab IIOpilio (Snow) Crab IIIShrimp: Genus Pandalus 1. 1976 Harvest - 58,620 mt, 2007 - 227 mt. 2. Five Main Species Harvested 3. Gear, Beam Trawl & Pots 4. All are Protandrous Hermaphrodites 5. Relatively Brief Life Cycle 6. Biomass Can be Enormous 7. Mechanical Peelers 1960s 8. Spot Shrimp - up to 9” without AntennaeShrimp Harvest RegionsNorthern or Pink Shrimp Pandalus borealisSidestripe Shrimp Pandalopsis disparCoonstriped Shrimp Pandalus danaeSpot Shrimp, Spot Prawn Pandalus platycerosHumpbacked Shrimp Pandalus hypsinotusSuggested Readings 1. FAO Fish Sustainability 2. NPFMC Crab 3. ADF&G Salmon Herring 4. ADF&G Shellfish


View Full Document

UAF FSN 261 - Groundfish

Download Groundfish
Our administrator received your request to download this document. We will send you the file to your email shortly.
Loading Unlocking...
Login

Join to view Groundfish and access 3M+ class-specific study document.

or
We will never post anything without your permission.
Don't have an account?
Sign Up

Join to view Groundfish 2 2 and access 3M+ class-specific study document.

or

By creating an account you agree to our Privacy Policy and Terms Of Use

Already a member?