Atlantic Continental Shelf and Slope of the United States
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Fresh- and Brackish-Water Cold-Tolerant Species of Southern Europe: Migrants from the Paratethys That Colonized the Arctic
water Review Fresh- and Brackish-Water Cold-Tolerant Species of Southern Europe: Migrants from the Paratethys That Colonized the Arctic Valentina S. Artamonova 1, Ivan N. Bolotov 2,3,4, Maxim V. Vinarski 4 and Alexander A. Makhrov 1,4,* 1 A. N. Severtzov Institute of Ecology and Evolution, Russian Academy of Sciences, 119071 Moscow, Russia; [email protected] 2 Laboratory of Molecular Ecology and Phylogenetics, Northern Arctic Federal University, 163002 Arkhangelsk, Russia; [email protected] 3 Federal Center for Integrated Arctic Research, Russian Academy of Sciences, 163000 Arkhangelsk, Russia 4 Laboratory of Macroecology & Biogeography of Invertebrates, Saint Petersburg State University, 199034 Saint Petersburg, Russia; [email protected] * Correspondence: [email protected] Abstract: Analysis of zoogeographic, paleogeographic, and molecular data has shown that the ancestors of many fresh- and brackish-water cold-tolerant hydrobionts of the Mediterranean region and the Danube River basin likely originated in East Asia or Central Asia. The fish genera Gasterosteus, Hucho, Oxynoemacheilus, Salmo, and Schizothorax are examples of these groups among vertebrates, and the genera Magnibursatus (Trematoda), Margaritifera, Potomida, Microcondylaea, Leguminaia, Unio (Mollusca), and Phagocata (Planaria), among invertebrates. There is reason to believe that their ancestors spread to Europe through the Paratethys (or the proto-Paratethys basin that preceded it), where intense speciation took place and new genera of aquatic organisms arose. Some of the forms that originated in the Paratethys colonized the Mediterranean, and overwhelming data indicate that Citation: Artamonova, V.S.; Bolotov, representatives of the genera Salmo, Caspiomyzon, and Ecrobia migrated during the Miocene from I.N.; Vinarski, M.V.; Makhrov, A.A. -
Time and Tides in the Gulf of Maine a Dockside Dialogue Between Two Old Friends
1 Time and Tides in the Gulf of Maine A dockside dialogue between two old friends by David A. Brooks It's impossible to visit Maine's coast and not notice the tides. The twice-daily rise and fall of sea level never fails to impress, especially downeast, toward the Canadian border, where the tidal range can exceed twenty feet. Proceeding northeastward into the Bay of Fundy, the range grows steadily larger, until at the head of the bay, "moon" tides of greater than fifty feet can leave ships wallowing in the mud, awaiting the water's return. My dockside companion, nodding impatiently, interrupts: Yes, yes, but why is this so? Why are the tides so large along the Maine coast, and why does the tidal range increase so dramatically northeastward? Well, my friend, before we address these important questions, we should review some basic facts about the tides. Here, let me sketch a few things that will remind you about our place in the sky. A quiet rumble, as if a dark cloud had suddenly passed overhead. Didn’t expect a physics lesson on this beautiful day. 2 The only physics needed, my friend, you learned as a child, so not to worry. The sketch is a top view, looking down on the earth’s north pole. You see the moon in its monthly orbit, moving in the same direction as the earth’s rotation. And while this is going on, the earth and moon together orbit the distant sun once a year, in about twelve months, right? Got it skippah. -
Ecoregions of New England Forested Land Cover, Nutrient-Poor Frigid and Cryic Soils (Mostly Spodosols), and Numerous High-Gradient Streams and Glacial Lakes
58. Northeastern Highlands The Northeastern Highlands ecoregion covers most of the northern and mountainous parts of New England as well as the Adirondacks in New York. It is a relatively sparsely populated region compared to adjacent regions, and is characterized by hills and mountains, a mostly Ecoregions of New England forested land cover, nutrient-poor frigid and cryic soils (mostly Spodosols), and numerous high-gradient streams and glacial lakes. Forest vegetation is somewhat transitional between the boreal regions to the north in Canada and the broadleaf deciduous forests to the south. Typical forest types include northern hardwoods (maple-beech-birch), northern hardwoods/spruce, and northeastern spruce-fir forests. Recreation, tourism, and forestry are primary land uses. Farm-to-forest conversion began in the 19th century and continues today. In spite of this trend, Ecoregions denote areas of general similarity in ecosystems and in the type, quality, and 5 level III ecoregions and 40 level IV ecoregions in the New England states and many Commission for Environmental Cooperation Working Group, 1997, Ecological regions of North America – toward a common perspective: Montreal, Commission for Environmental Cooperation, 71 p. alluvial valleys, glacial lake basins, and areas of limestone-derived soils are still farmed for dairy products, forage crops, apples, and potatoes. In addition to the timber industry, recreational homes and associated lodging and services sustain the forested regions economically, but quantity of environmental resources; they are designed to serve as a spatial framework for continue into ecologically similar parts of adjacent states or provinces. they also create development pressure that threatens to change the pastoral character of the region. -
Suspended Sediment Delivery from Small Catchments to the Bay of Biscay. What Are the Controlling Factors ?
Open Archive TOULOUSE Archive Ouverte (OATAO) OATAO is an open access repository that collects the work of Toulouse researchers and makes it freely available over the web where possible. This is an author-deposited version published in : http://oatao.univ-toulouse.fr/ Eprints ID : 16604 To link to this article : DOI : 10.1002/esp.3957 URL : http://dx.doi.org/10.1002/esp.3957 To cite this version : Zabaleta, Ane and Antiguedad, Inaki and Barrio, Irantzu and Probst, Jean-Luc Suspended sediment delivery from small catchments to the Bay of Biscay. What are the controlling factors ? (2016) Earth Surface Processes and Landforms, vol.41, n°13, pp. 1813-2004. ISSN 1096-9837 Any correspondence concerning this service should be sent to the repository administrator: [email protected] Suspended sediment delivery from small catchments to the Bay of Biscay. What are the controlling factors? Ane Zabaleta,1* liiaki Antiguedad,1 lrantzu Barrio2 and Jean-Luc Probst3 1 Hydrology and Environment Group, Science and Technology Faculty, University of the Basque Country UPV/EHU, Leioa, Basque Country, Spain 2 Department of Applied Mathematics, Statistics and Operations Research, Science and Technology Faculty, University of the Basque Country UPV/EHU, Leioa, Basque Country, Spain 3 EcoLab, University of Toulouse, CNRS, INPT, UPS, Toulouse, France *Correspondence to: Ane Zabaleta, Hydrology and Environment Group, Science and Technology Faculty, University of the Basque Country UPV/EHU, 48940 Leioa, Basque Country, Spain. E-mail: [email protected] ABSTRACT: The transport and yield of suspended sediment (SS) in catchments all over the world have long been tapies of great interest. -
A Changing Nutrient Regime in the Gulf of Maine
ARTICLE IN PRESS Continental Shelf Research 30 (2010) 820–832 Contents lists available at ScienceDirect Continental Shelf Research journal homepage: www.elsevier.com/locate/csr A changing nutrient regime in the Gulf of Maine David W. Townsend Ã, Nathan D. Rebuck, Maura A. Thomas, Lee Karp-Boss, Rachel M. Gettings University of Maine, School of Marine Sciences, 5706 Aubert Hall, Orono, ME 04469-5741, United States article info abstract Article history: Recent oceanographic observations and a retrospective analysis of nutrients and hydrography over the Received 13 July 2009 past five decades have revealed that the principal source of nutrients to the Gulf of Maine, the deep, Received in revised form nutrient-rich continental slope waters that enter at depth through the Northeast Channel, may have 4 January 2010 become less important to the Gulf’s nutrient load. Since the 1970s, the deeper waters in the interior Accepted 27 January 2010 Gulf of Maine (4100 m) have become fresher and cooler, with lower nitrate (NO ) but higher silicate Available online 16 February 2010 3 (Si(OH)4) concentrations. Prior to this decade, nitrate concentrations in the Gulf normally exceeded Keywords: silicate by 4–5 mM, but now silicate and nitrate are nearly equal. These changes only partially Nutrients correspond with that expected from deep slope water fluxes correlated with the North Atlantic Gulf of Maine Oscillation, and are opposite to patterns in freshwater discharges from the major rivers in the region. Decadal changes We suggest that accelerated melting in the Arctic and concomitant freshening of the Labrador Sea in Arctic melting Slope waters recent decades have likely increased the equatorward baroclinic transport of the inner limb of the Labrador Current that flows over the broad continental shelf from the Grand Banks of Newfoundland to the Gulf of Maine. -
~Ertif Ied by 3 0 7 Thesis S Uperv Isg.Rn.:T::.··__....---
1 A GRAPHIC DISPLAY OF PLATE TECTONICS IN THE TETHYS SEA by Anthony B. Williams S.B. California Institute of Technology (1965) SUBMITTED IN PARTIAL FULFILLMENT OF THE 3.EQUIREMENTS FOR THE DEGREE OF MASTER OF SCIENCE at the MASSACHUSETTS INSTITUTE OF ·rECHNOLOGY August, 1971 ignature of Author Signature redacted Department oj;t=Earth and Planetary Science _S_ig_n_a_tu_r_e_r_e_d_a_c_te_d__ ~ ,_, , ~ertif ied by 3 0 7 Thesis S uperv isg.rn.:t::.··__....--- .. Signature redacted ccepted by Chairman, Departmental Committee on Graduate Students 77 Massachusetts Avenue Cambridge, MA 02139 MITLibraries http://Iibraries.mit.edu/ask DISCLAIMER NOTICE Due to the condition of the original material, there are unavoidable flaws in this reproduction. We have made every effort possible to provide you with the best copy available. Thank you. Some pages in the original document contain text that runs off the edge of the page. 2 ABSTRACT The hypothesis of plate tectonics is applied to the Mediterranean Sea region in order to explain its Tertiary mountain chains and to derive previous positions for the component plate fragments. Consuming plate boundaries are selected on geophysical and geological grounds, and are assumed connected through modern oceanic regions by shearing and accreting boundaries. The resultant plate fragments are rotated to fit geological and morphological similarities, and the timing of tectonic events, without violating available constraints. The cumulative rotations are plotted to illustrate behind-arc spreading in the western Mediterranean basins and closure upon the Adriatic and Ionian seas from east and west following northward motion of the central Alpine plate fragment. I 3 TABLE OF CONTENTS -Abstract . -
Large Whales of the Bay of Biscay and Whale Strike Risk
Large whales of the Bay of Biscay and whale strike risk orcaweb.org.uk UK registered charity no: 1141728 2 Large whales killed by ship strikes 2 Contents The ORCA and WSPA ship strike reduction initiative 3 The Bay of Biscay 4 Fin whale 5 Minke Whale 7 Sperm whale 9 Young John © image: Cover Reporting a whale strike to the International Whaling Commission (IWC) 11 Ship strike recording form 12 Further information and appendices 13 Appendix 1 Fin whale further information 13 Appendix 2 Minke whale further information 14 Appendix 3 Sperm whale further information 15 Large whales killed by ship strikes There have been several reports in the press of Shipping density in the Bay of Biscay is as high if not ships hitting and killing large whales; does this higher than in the Mediterranean, therefore it can happen in the Bay of Biscay? be inferred that there will be at least a comparable Unfortunately yes. One of the busiest shipping risk of ship strikes in these areas. This suggestion routes in the world occurs through the western is supported by further scientific research, which edge of Biscay; container vessels, tankers and bulk identified the Bay of Biscay and Southwest carriers all move goods from northern Europe Approaches as areas of high risk of fatal ship strike. to the Mediterranean, Asia and Africa. Couple this with high densities of large whales, the risks Do animals suffer after a strike? of whale strike is inevitably going to be high. Imagine you have a pet dog or cat (or perhaps you do) and it runs into the road. -
Chapter 24. the BAY of BISCAY: the ENCOUNTERING of the OCEAN and the SHELF (18B,E)
Chapter 24. THE BAY OF BISCAY: THE ENCOUNTERING OF THE OCEAN AND THE SHELF (18b,E) ALICIA LAVIN, LUIS VALDES, FRANCISCO SANCHEZ, PABLO ABAUNZA Instituto Español de Oceanografía (IEO) ANDRE FOREST, JEAN BOUCHER, PASCAL LAZURE, ANNE-MARIE JEGOU Institut Français de Recherche pour l’Exploitation de la MER (IFREMER) Contents 1. Introduction 2. Geography of the Bay of Biscay 3. Hydrography 4. Biology of the Pelagic Ecosystem 5. Biology of Fishes and Main Fisheries 6. Changes and risks to the Bay of Biscay Marine Ecosystem 7. Concluding remarks Bibliography 1. Introduction The Bay of Biscay is an arm of the Atlantic Ocean, indenting the coast of W Europe from NW France (Offshore of Brittany) to NW Spain (Galicia). Tradition- ally the southern limit is considered to be Cape Ortegal in NW Spain, but in this contribution we follow the criterion of other authors (i.e. Sánchez and Olaso, 2004) that extends the southern limit up to Cape Finisterre, at 43∞ N latitude, in order to get a more consistent analysis of oceanographic, geomorphological and biological characteristics observed in the bay. The Bay of Biscay forms a fairly regular curve, broken on the French coast by the estuaries of the rivers (i.e. Loire and Gironde). The southeastern shore is straight and sandy whereas the Spanish coast is rugged and its northwest part is characterized by many large V-shaped coastal inlets (rias) (Evans and Prego, 2003). The area has been identified as a unit since Roman times, when it was called Sinus Aquitanicus, Sinus Cantabricus or Cantaber Oceanus. The coast has been inhabited since prehistoric times and nowadays the region supports an important population (Valdés and Lavín, 2002) with various noteworthy commercial and fishing ports (i.e. -
Submarine Warfare, Fiction Or Reality? John Charles Cheska University of Massachusetts Amherst
University of Massachusetts Amherst ScholarWorks@UMass Amherst Masters Theses 1911 - February 2014 1962 Submarine warfare, fiction or reality? John Charles Cheska University of Massachusetts Amherst Follow this and additional works at: https://scholarworks.umass.edu/theses Cheska, John Charles, "Submarine warfare, fiction or reality?" (1962). Masters Theses 1911 - February 2014. 1392. Retrieved from https://scholarworks.umass.edu/theses/1392 This thesis is brought to you for free and open access by ScholarWorks@UMass Amherst. It has been accepted for inclusion in Masters Theses 1911 - February 2014 by an authorized administrator of ScholarWorks@UMass Amherst. For more information, please contact [email protected]. bmbb ittmtL a zia a musv John C. Chaaka, Jr. A.B. Aaharat Collag* ThMis subnlttwi to tho Graduate Faculty in partial fulfillment of tha requlraaanta for tha degraa of Master of Arta Uoiwaity of Maaaaohuaetta Aaherat August, 1962 a 3, v TABU OF CONTENTS Hm ramp _, 4 CHAPTER I Command Structure and Policy 1 II Material III Operations 28 I? The Submarine War ae the Public Saw It V The Number of U-Boate Actually Sunk V VI Conclusion 69 APPENDXEJB APPENDIX 1 Admiralty Organisation in 1941 75 2 German 0-Boat 76 3 Effects of Strategic Bombing on Late Model 78 U-Boat Productions and Operations 4 U-Boats Sunk Off the United States Coaat 79 by United States Forces 5 U-Boats Sunk in Middle American Zone 80 inr United StatM ?bkii 6 U-Bosta Sunk Off South America 81 by United States Forces 7 U-Boats Sunk in the Atlantio in Area A 82 1 U-Boats Sunk in the Atlentio in Area B 84 9A U-Boats Sunk Off European Coast 87 by United States Forces 9B U-Bnata Sunk in Mediterranean Sea by United 87 States Forces TABLE OF CONTENTS klWDU p«g« 10 U-Boats Sunk by Strategic Bombing 38 by United States Amy Air Foreee 11 U-Boats Sunk by United States Forces in 90 Cooperation with other Nationalities 12 Bibliography 91 LIST OF MAPS AND GRAPHS MAP NO. -
Bay of Biscay and the Iberian Coast Ecoregion Published 10 December 2020
ICES Ecosystem Overviews Bay of Biscay and the Iberian Coast ecoregion Published 10 December 2020 6.1 Bay of Biscay and the Iberian Coast ecoregion – Ecosystem Overview Table of contents Bay of Biscay and the Iberian Coast ecoregion – Ecosystem Overview ........................................................................................................ 1 Ecoregion description ................................................................................................................................................................................... 1 Key signals within the environment and the ecosystem .............................................................................................................................. 2 Pressures ...................................................................................................................................................................................................... 3 Climate change impacts ................................................................................................................................................................................ 7 State of the ecosystem ................................................................................................................................................................................. 9 Sources and acknowledgements ................................................................................................................................................................ 14 Sources -
Marine Litter in Submarine Canyons of the Bay of Biscay
1 Deep Sea Research Part II: Topical Studies in Oceanography Achimer November 2017, Volume 145, Pages 142-152 http://dx.doi.org/10.1016/j.dsr2.2016.04.013 http://archimer.ifremer.fr http://archimer.ifremer.fr/doc/00332/44363/ © 2016 Elsevier Ltd. All rights reserved. Marine litter in submarine canyons of the Bay of Biscay Van Den Beld Inge 1, * , Guillaumont Brigitte 1, Menot Lenaick 1, Bayle Christophe 1, Arnaud-Haond Sophie 1, Bourillet Jean-Francois 2 1 Ifremer, Centre de Brest, EEP/LEP, CS 10070, 29280 Plouzané, France 2 Ifremer, Centre de Brest, REM/GM, CS 10070, 29280 Plouzané, France * Corresponding author : Inge Van Den Beld, Tel.: +33 0 2 98 22 40 40; fax: +33 0 2 98 22 47 57 ; email address : [email protected] Abstract : Marine litter is a matter of increasing concern worldwide, from shallow seas to the open ocean and from beaches to the deep-seafloor. Indeed, the deep sea may be the ultimate repository of a large proportion of litter in the ocean. We used footage acquired with a Remotely Operated Vehicle (ROV) and a towed camera to investigate the distribution and composition of litter in the submarine canyons of the Bay of Biscay. This bay contains many submarine canyons housing Vulnerable Marine Ecosystems (VMEs) such as scleractinian coral habitats. VMEs are considered to be important for fish and they increase the local biodiversity. The objectives of the study were to investigate and discuss: i) litter density, ii) the principal sources of litter, iii) the influence of environmental factors on the distribution of litter, and iv) the impact of litter on benthic communities. -
System Development Map 2019 / 2020 Presents Existing Infrastructure & Capacity from the Perspective of the Year 2020
7125/1-1 7124/3-1 SNØHVIT ASKELADD ALBATROSS 7122/6-1 7125/4-1 ALBATROSS S ASKELADD W GOLIAT 7128/4-1 Novaya Import & Transmission Capacity Zemlya 17 December 2020 (GWh/d) ALKE JAN MAYEN (Values submitted by TSO from Transparency Platform-the lowest value between the values submitted by cross border TSOs) Key DEg market area GASPOOL Den market area Net Connect Germany Barents Sea Import Capacities Cross-Border Capacities Hammerfest AZ DZ LNG LY NO RU TR AT BE BG CH CZ DEg DEn DK EE ES FI FR GR HR HU IE IT LT LU LV MD MK NL PL PT RO RS RU SE SI SK SM TR UA UK AT 0 AT 350 194 1.570 2.114 AT KILDIN N BE 477 488 965 BE 131 189 270 1.437 652 2.679 BE BG 577 577 BG 65 806 21 892 BG CH 0 CH 349 258 444 1.051 CH Pechora Sea CZ 0 CZ 2.306 400 2.706 CZ MURMAN DEg 511 2.973 3.484 DEg 129 335 34 330 932 1.760 DEg DEn 729 729 DEn 390 268 164 896 593 4 1.116 3.431 DEn MURMANSK DK 0 DK 101 23 124 DK GULYAYEV N PESCHANO-OZER EE 27 27 EE 10 168 10 EE PIRAZLOM Kolguyev POMOR ES 732 1.911 2.642 ES 165 80 245 ES Island Murmansk FI 220 220 FI 40 - FI FR 809 590 1.399 FR 850 100 609 224 1.783 FR GR 350 205 49 604 GR 118 118 GR BELUZEY HR 77 77 HR 77 54 131 HR Pomoriy SYSTEM DEVELOPMENT MAP HU 517 517 HU 153 49 50 129 517 381 HU Strait IE 0 IE 385 385 IE Kanin Peninsula IT 1.138 601 420 2.159 IT 1.150 640 291 22 2.103 IT TO TO LT 122 325 447 LT 65 65 LT 2019 / 2020 LU 0 LU 49 24 73 LU Kola Peninsula LV 63 63 LV 68 68 LV MD 0 MD 16 16 MD AASTA HANSTEEN Kandalaksha Avenue de Cortenbergh 100 Avenue de Cortenbergh 100 MK 0 MK 20 20 MK 1000 Brussels - BELGIUM 1000 Brussels - BELGIUM NL 418 963 1.381 NL 393 348 245 168 1.154 NL T +32 2 894 51 00 T +32 2 209 05 00 PL 158 1.336 1.494 PL 28 234 262 PL Twitter @ENTSOG Twitter @GIEBrussels PT 200 200 PT 144 144 PT [email protected] [email protected] RO 1.114 RO 148 77 RO www.entsog.eu www.gie.eu 1.114 225 RS 0 RS 174 142 316 RS The System Development Map 2019 / 2020 presents existing infrastructure & capacity from the perspective of the year 2020.