Northern Pike in Southcentral
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Geologic Maps of the Eastern Alaska Range, Alaska, (44 Quadrangles, 1:63360 Scale)
Report of Investigations 2015-6 GEOLOGIC MAPS OF THE EASTERN ALASKA RANGE, ALASKA, (44 quadrangles, 1:63,360 scale) descriptions and interpretations of map units by Warren J. Nokleberg, John N. Aleinikoff, Gerard C. Bond, Oscar J. Ferrians, Jr., Paige L. Herzon, Ian M. Lange, Ronny T. Miyaoka, Donald H. Richter, Carl E. Schwab, Steven R. Silva, Thomas E. Smith, and Richard E. Zehner Southeastern Tanana Basin Southern Yukon–Tanana Upland and Terrane Delta River Granite Jarvis Mountain Aurora Peak Creek Terrane Hines Creek Fault Black Rapids Glacier Jarvis Creek Glacier Subterrane - Southern Yukon–Tanana Terrane Windy Terrane Denali Denali Fault Fault East Susitna Canwell Batholith Glacier Maclaren Glacier McCallum Creek- Metamorhic Belt Meteor Peak Slate Creek Thrust Broxson Gulch Fault Thrust Rainbow Mountain Slana River Subterrane, Wrangellia Terrane Phelan Delta Creek River Highway Slana River Subterrane, Wrangellia Terrane Published by STATE OF ALASKA DEPARTMENT OF NATURAL RESOURCES DIVISION OF GEOLOGICAL & GEOPHYSICAL SURVEYS 2015 GEOLOGIC MAPS OF THE EASTERN ALASKA RANGE, ALASKA, (44 quadrangles, 1:63,360 scale) descriptions and interpretations of map units Warren J. Nokleberg, John N. Aleinikoff, Gerard C. Bond, Oscar J. Ferrians, Jr., Paige L. Herzon, Ian M. Lange, Ronny T. Miyaoka, Donald H. Richter, Carl E. Schwab, Steven R. Silva, Thomas E. Smith, and Richard E. Zehner COVER: View toward the north across the eastern Alaska Range and into the southern Yukon–Tanana Upland highlighting geologic, structural, and geomorphic features. View is across the central Mount Hayes Quadrangle and is centered on the Delta River, Richardson Highway, and Trans-Alaska Pipeline System (TAPS). Major geologic features, from south to north, are: (1) the Slana River Subterrane, Wrangellia Terrane; (2) the Maclaren Terrane containing the Maclaren Glacier Metamorphic Belt to the south and the East Susitna Batholith to the north; (3) the Windy Terrane; (4) the Aurora Peak Terrane; and (5) the Jarvis Creek Glacier Subterrane of the Yukon–Tanana Terrane. -
Muskellunge: a Michigan Resource
Muskellunge: A Michigan Resource The muskellunge, or musky, is a tremendous game fish native to the lakes and streams of Michigan. The musky also is a fish of many myths regarding its’ appetite, size and elusiveness. The stories about muskies portray a fish feeding on anything that moves and can fit down their tooth-filled jaws…yet believed to be so difficult to catch that the musky is called “the fish of 10,000 casts.” Here, we briefly explore the mythical, legendary and genuine muskellunge. IDENTIFICATION Muskellunge are members of the esocid family of fish, which also includes the northern pike. This particular family of fish, technically called Esocidae, share similar characteristics such as long thin bodies and soft-rayed fins. These fish have large mouths full of sharp teeth. Muskellunge and pike are identified as piscivores, which means their primary diet is fish. Though similar in appearance, muskellunge tend to achieve larger sizes than northern pike. The musky’s coloration is one of dark stripes, or dark spots, on a light background. Northern pike, in contrast, usually have light, bean-shaped spots on a dark background. The shape of the tail fin is a good method of identification as a musky’s is pointed and the tail fin of a pike is rounded. Another key characteristic for identification is the presence or absence of scales on the cheeks and gill covers. Muskies only have scales on the upper half of the cheek and gill cover. Like the muskellunge, the northern pike gill cover has scales on the upper half, but the cheek is fully scaled. -
Changing Communities of Baltic Coastal Fish Executive Summary: Assessment of Coastal fi Sh in the Baltic Sea
Baltic Sea Environment Proceedings No. 103 B Changing Communities of Baltic Coastal Fish Executive summary: Assessment of coastal fi sh in the Baltic Sea Helsinki Commission Baltic Marine Environment Protection Commission Baltic Sea Environment Proceedings No. 103 B Changing Communities of Baltic Coastal Fish Executive summary: Assessment of coastal fi sh in the Baltic Sea Helsinki Commission Baltic Marine Environment Protection Commission Editor: Janet Pawlak Authors: Kaj Ådjers (Co-ordination Organ for Baltic Reference Areas) Jan Andersson (Swedish Board of Fisheries) Magnus Appelberg (Swedish Board of Fisheries) Redik Eschbaum (Estonian Marine Institute) Ronald Fricke (State Museum of Natural History, Stuttgart, Germany) Antti Lappalainen (Finnish Game and Fisheries Research Institute), Atis Minde (Latvian Fish Resources Agency) Henn Ojaveer (Estonian Marine Institute) Wojciech Pelczarski (Sea Fisheries Institute, Poland) Rimantas Repečka (Institute of Ecology, Lithuania). Photographers: Visa Hietalahti p. cover, 7 top, 8 bottom Johnny Jensen p. 3 top, 3 bottom, 4 middle, 4 bottom, 5 top, 8 top, 9 top, 9 bottom Lauri Urho p. 4 top, 5 bottom Juhani Vaittinen p. 7 bottom Markku Varjo / LKA p. 10 top For bibliographic purposes this document should be cited as: HELCOM, 2006 Changing Communities of Baltic Coastal Fish Executive summary: Assessment of coastal fi sh in the Baltic Sea Balt. Sea Environ. Proc. No. 103 B Information included in this publication or extracts thereof is free for citing on the condition that the complete reference of the publication is given as stated above Copyright 2006 by the Baltic Marine Environment Protection Commission - Helsinki Commission - Design and layout: Bitdesign, Vantaa, Finland Printed by: Erweko Painotuote Oy, Finland ISSN 0357-2994 Coastal fi sh – a combination of freshwater and marine species Coastal fish communities are important components of Baltic Sea ecosystems. -
Northern Pike Esox Lucius ILLINOIS RANGE
northern pike Esox lucius Kingdom: Animalia FEATURES Phylum: Chordata The northern pike's average life span is eight to 10 Class: Osteichthyes years. The average weight is two pounds. It may Order: Esociformes attain a maximum length of 53 inches. The fins are rounded, and all except the pectoral fins have dark Family: Esocidae spots. Scales are present on the cheek and half of ILLINOIS STATUS the gill cover. The eyes are yellow. The long, green body has yellow spots on the sides. The belly is common, native white to dark yellow. The duckbill-shaped snout is easily seen. BEHAVIORS The northern pike lives in lakes, rivers and marshes. It prefers water without strong currents and with many plants. This fish reaches maturity at age two to three years. Spawning occurs in March. The female deposits up to 150,000 eggs that are scattered in marshy areas or other shallow water areas. Eggs hatch in 12-14 days. This fish eats fishes, insects, crayfish, frogs and reptiles. ILLINOIS RANGE © Illinois Department of Natural Resources. 2020. Biodiversity of Illinois. Unless otherwise noted, photos and images © Illinois Department of Natural Resources. close up of head close up of side © Illinois Department of Natural Resources. 2020. Biodiversity of Illinois. Unless otherwise noted, photos and images © Illinois Department of Natural Resources. © Engbretson Underwater Photography adult Aquatic Habitats lakes, ponds and reservoirs; rivers and streams; marshes Woodland Habitats none Prairie and Edge Habitats none © Illinois Department of Natural Resources. 2020. Biodiversity of Illinois. Unless otherwise noted, photos and images © Illinois Department of Natural Resources.. -
Southcentral Alaska Stock
Revised: April 2014 NORTHERN SEA OTTER (Enhydra lutris kenyoni): Southcentral Alaska Stock STOCK DEFINITION AND GEOGRAPHIC RANGE Sea otters occur in nearshore coastal waters of the U.S. along the North Pacific Rim from the Aleutian Islands to California. The species is most commonly observed within the 40-meter (approximately 12.2 feet [ft]) depth contour because the animals require frequent access to benthic foraging habitat in subtidal and intertidal zones (Reidman and Estes 1990). Sea otters are not migratory and generally do not disperse over long distances, although movements of tens of kilometers (km) (tens of miles [mi]) are common (Garshelis and Garshelis 1984). Annual home range sizes of adult sea otters are relatively small, with male territories ranging from 4 to 11 square kilometers (km2) (approximately 10.5 to 28.5 square miles[mi2]) and adult female home ranges from a few to 24 km2 (approximately 62 mi2) (Garshelis and Garshelis 1984; Ralls et al. 1988; Jameson 1989). Due to their benthic foraging, sea otter distribution is largely limited by their ability to dive to the sea floor (Bodkin et al. 2004). 1 Figure 1. Approximate distribution and stock boundaries of northern sea otters in Alaska waters (shaded area). The spatial scale at which sea otter populations are managed remains an important, although largely unexplored issue (Bodkin and Ballachey 2010) deserving further study. Bodkin and Ballachey (2010) used models of sea otter mortality to show that range-wide reductions and extirpations during the commercial fur trade of the 18th and 19th centuries occurred not simply because of excessive harvest, but because the harvest was not allocated proportional to the abundance and distribution of sea otters. -
Possible Impacts of Prudhoe Bay Shut Down on Alaska Refinery Output
KENAI PENINSULA BOROUGH Oil & Gas, Mining & Special Projects Office 144 N. Binkley Street Soldotna, Alaska 99669 BUSINESS: (907) 714-2335 FAX: (907) 262-8616 [email protected] www.cookinletoilandgas.org JOHN J. WILLIAMS BOROUGH MAYOR To: Mayor John J. Williams Thru: Tim Navarre, Chief of Staff Date: August 8, 2006 From: Bill Popp, Oil, Gas & Mining Liaison Subject: Possible impacts of Prudhoe Bay shut down on Alaska refinery output This preliminary analysis is a follow up on the “first take” my office provided on August 7th regarding the possible impacts of the Prudhoe Bay oil field closure. In particular, the effects on Alaska’s total refinery output of finished petroleum products and the ripple effects that may be felt in the communities of the Kenai Peninsula Borough. As pointed out in the “first take,” there could be significant impacts on in-state production of motor diesel, home heating fuels, power generation fuels, jet fuels and gasoline. These impacts could lead to price spikes and shortages for these fuels unless the refiners are able to secure either adequate alternative supplies of refined products from outside of Alaska, or alternative supply contracts for North Slope crude oil originating from fields other than Prudhoe Bay. 1. Existing refineries, total through puts and outputs and total Alaska consumption Alaska currently has 6 refineries. Two refineries are based on the North Slope and only serve that region. Two refineries are based in Fairbanks. One is based in Valdez and one is based in Nikiski. The four refineries based in Fairbanks, Valdez and Nikiski serve the major population centers of Alaska and will be the focus of this analysis. -
Esox Lucius) Ecological Risk Screening Summary
Northern Pike (Esox lucius) Ecological Risk Screening Summary U.S. Fish & Wildlife Service, February 2019 Web Version, 8/26/2019 Photo: Ryan Hagerty/USFWS. Public Domain – Government Work. Available: https://digitalmedia.fws.gov/digital/collection/natdiglib/id/26990/rec/22. (February 1, 2019). 1 Native Range and Status in the United States Native Range From Froese and Pauly (2019a): “Circumpolar in fresh water. North America: Atlantic, Arctic, Pacific, Great Lakes, and Mississippi River basins from Labrador to Alaska and south to Pennsylvania and Nebraska, USA [Page and Burr 2011]. Eurasia: Caspian, Black, Baltic, White, Barents, Arctic, North and Aral Seas and Atlantic basins, southwest to Adour drainage; Mediterranean basin in Rhône drainage and northern Italy. Widely distributed in central Asia and Siberia easward [sic] to Anadyr drainage (Bering Sea basin). Historically absent from Iberian Peninsula, Mediterranean France, central Italy, southern and western Greece, eastern Adriatic basin, Iceland, western Norway and northern Scotland.” Froese and Pauly (2019a) list Esox lucius as native in Armenia, Azerbaijan, China, Georgia, Iran, Kazakhstan, Mongolia, Turkey, Turkmenistan, Uzbekistan, Albania, Austria, Belgium, Bosnia Herzegovina, Bulgaria, Croatia, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Ireland, Italy, Latvia, Lithuania, Luxembourg, Macedonia, Moldova, Monaco, 1 Netherlands, Norway, Poland, Romania, Russia, Serbia, Slovakia, Slovenia, Sweden, Switzerland, United Kingdom, Ukraine, Canada, and the United States (including Alaska). From Froese and Pauly (2019a): “Occurs in Erqishi river and Ulungur lake [in China].” “Known from the Selenge drainage [in Mongolia] [Kottelat 2006].” “[In Turkey:] Known from the European Black Sea watersheds, Anatolian Black Sea watersheds, Central and Western Anatolian lake watersheds, and Gulf watersheds (Firat Nehri, Dicle Nehri). -
P1616 Text-Only PDF File
A Geologic Guide to Wrangell–Saint Elias National Park and Preserve, Alaska A Tectonic Collage of Northbound Terranes By Gary R. Winkler1 With contributions by Edward M. MacKevett, Jr.,2 George Plafker,3 Donald H. Richter,4 Danny S. Rosenkrans,5 and Henry R. Schmoll1 Introduction region—his explorations of Malaspina Glacier and Mt. St. Elias—characterized the vast mountains and glaciers whose realms he invaded with a sense of astonishment. His descrip Wrangell–Saint Elias National Park and Preserve (fig. tions are filled with superlatives. In the ensuing 100+ years, 6), the largest unit in the U.S. National Park System, earth scientists have learned much more about the geologic encompasses nearly 13.2 million acres of geological won evolution of the parklands, but the possibility of astonishment derments. Furthermore, its geologic makeup is shared with still is with us as we unravel the results of continuing tectonic contiguous Tetlin National Wildlife Refuge in Alaska, Kluane processes along the south-central Alaska continental margin. National Park and Game Sanctuary in the Yukon Territory, the Russell’s superlatives are justified: Wrangell–Saint Elias Alsek-Tatshenshini Provincial Park in British Columbia, the is, indeed, an awesome collage of geologic terranes. Most Cordova district of Chugach National Forest and the Yakutat wonderful has been the continuing discovery that the disparate district of Tongass National Forest, and Glacier Bay National terranes are, like us, invaders of a sort with unique trajectories Park and Preserve at the north end of Alaska’s panhan and timelines marking their northward journeys to arrive in dle—shared landscapes of awesome dimensions and classic today’s parklands. -
Determinants of Angling Catch of Northern Pike (Esox Lucius) As
Fisheries Research 186 (2017) 648–657 Contents lists available at ScienceDirect Fisheries Research j ournal homepage: www.elsevier.com/locate/fishres Full length article Determinants of angling catch of northern pike (Esox lucius) as revealed by a controlled whole-lake catch-and-release angling experiment—The role of abiotic and biotic factors, spatial encounters and lure type a,b,∗ a,c a a,d Robert Arlinghaus , Josep Alós , Tonio Pieterek , Thomas Klefoth a Department of Biology and Ecology of Fishes, Leibniz-Institute of Freshwater Ecology and Inland Fisheries, Müggelseedamm 310, 12587 Berlin, Germany b Division of Integrative Fisheries Management, Faculty of Life Sciences & Integrative Research Institute for the Transformation of Human-Environment Systems (IRI THESys), Humboldt-Universität zu Berlin, Invalidenstrasse 42, 10115 Berlin, Germany c Instituto Mediterráneo de Estudios Avanzados, IMEDEA (CSIC-UIB), C/Miquel Marqués 21, 07190, Esporles, Illes Balears, Spain d Angling Association of Lower Saxony (Anglerverband Niedersachsen e.V.), Bürgermeister-Stümpel-Weg 1, 30457 Hannover, Germany a r a t i b s c l e i n f o t r a c t Article history: Studies on catches of anglers usually rely on observational data and are thus uncontrolled with respect Received 10 November 2015 to angler skill, bait/lure choice and site choice. We performed a controlled fishing experiment targeting Received in revised form 8 August 2016 northern pike (Esox lucius) in a small (25 ha), weakly eutrophic natural lake situated about 80 km northeast Accepted 10 September 2016 of Berlin (Germany) to understand abiotic, biotic and gear-related factors that relate to catch rates and size Handled by George A. -
Montana Fishing Regulations
MONTANA FISHING REGULATIONS 20March 1, 2018 — F1ebruary 828, 2019 Fly fishing the Missouri River. Photo by Jason Savage For details on how to use these regulations, see page 2 fwp.mt.gov/fishing With your help, we can reduce poaching. MAKE THE CALL: 1-800-TIP-MONT FISH IDENTIFICATION KEY If you don’t know, let it go! CUTTHROAT TROUT are frequently mistaken for Rainbow Trout (see pictures below): 1. Turn the fish over and look under the jaw. Does it have a red or orange stripe? If yes—the fish is a Cutthroat Trout. Carefully release all Cutthroat Trout that cannot be legally harvested (see page 10, releasing fish). BULL TROUT are frequently mistaken for Brook Trout, Lake Trout or Brown Trout (see below): 1. Look for white edges on the front of the lower fins. If yes—it may be a Bull Trout. 2. Check the shape of the tail. Bull Trout have only a slightly forked tail compared to the lake trout’s deeply forked tail. 3. Is the dorsal (top) fin a clear olive color with no black spots or dark wavy lines? If yes—the fish is a Bull Trout. Carefully release Bull Trout (see page 10, releasing fish). MONTANA LAW REQUIRES: n All Bull Trout must be released immediately in Montana unless authorized. See Western District regulations. n Cutthroat Trout must be released immediately in many Montana waters. Check the district standard regulations and exceptions to know where you can harvest Cutthroat Trout. NATIVE FISH Westslope Cutthroat Trout Species of Concern small irregularly shaped black spots, sparse on belly Average Size: 6”–12” cutthroat slash— spots -
Unalaska Hazard Mitigation Plan 2018
Unalaska, Alaska Multi-Jurisdictional Hazard Mitigation Plan Update April 2018 Prepared for: City of Unalaska and Qawalangin Tribe of Unalaska City of Unalaska Hazard Mitigation Plan THIS PAGE LEFT BLANK INTENTIONALLY ii City of Unalaska Hazard Mitigation Plan Table of Contents 1. Introduction .......................................................................................................... 1-1 1.1 Hazard Mitigation Planning ..................................................................... 1-1 1.2 Grant Programs with Mitigation Plan Requirements ............................... 1-1 1.2.1 HMA Unified Programs ............................................................... 1-2 2. Community Description ....................................................................................... 2-1 2.1 Location, Geography, and History ........................................................... 2-1 2.2 Demographics .......................................................................................... 2-3 2.3 Economy .................................................................................................. 2-4 3. Planning Process .................................................................................................. 3-1 3.1 Planning Process Overview ..................................................................... 3-1 3.2 Hazard Mitigation Planning Team ........................................................... 3-3 3.3 Public Involvement & Opportunities for Interested Parties to participate ................................................................................................ -
Geology of the Prince William Sound and Kenai Peninsula Region, Alaska
Geology of the Prince William Sound and Kenai Peninsula Region, Alaska Including the Kenai, Seldovia, Seward, Blying Sound, Cordova, and Middleton Island 1:250,000-scale quadrangles By Frederic H. Wilson and Chad P. Hults Pamphlet to accompany Scientific Investigations Map 3110 View looking east down Harriman Fiord at Serpentine Glacier and Mount Gilbert. (photograph by M.L. Miller) 2012 U.S. Department of the Interior U.S. Geological Survey Contents Abstract ..........................................................................................................................................................1 Introduction ....................................................................................................................................................1 Geographic, Physiographic, and Geologic Framework ..........................................................................1 Description of Map Units .............................................................................................................................3 Unconsolidated deposits ....................................................................................................................3 Surficial deposits ........................................................................................................................3 Rock Units West of the Border Ranges Fault System ....................................................................5 Bedded rocks ...............................................................................................................................5