DOCSLIB.ORG

New Agenda Template

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
New Agenda Template 48 ORDINARY MEETING 4 10 OCTOBER 2018 HOLLOWAYS BEACH EROSION MANAGEMENT OPTIONS ASSESSMENT REPORT M Ringer | 1/3/21 | #5873130 RECOMMENDATION: That Council notes the Holloways Beach Options Assessment Report which identifies 4 preferred stages to be further investigated and implemented over time to maximise the benefit of future beach nourishment campaigns and maintain a subaerial beach. EXECUTIVE SUMMARY: This report summarises the findings of a review of coastal processes that influence sediment supply and shoreline position at Holloways Beach, and details a shoreline erosion management strategy for the beach. The strategy includes options to maximise the benefit of future beach nourishment campaigns and maintain a subaerial beach. There are 4 recommended erosion management stages that could be sequentially implemented once each of the options is no longer managing the coastal hazard risk to acceptable levels. It should be noted that each of these options requires further detailed investigation, design and costing, Planning and Marine Park approvals, and community consultation with affected stakeholders. The preferred stages are: Stage 1 - Reinstate and extend the groyne at Oleander Street Stage 2 –Entrance management at Barr Creek Stage 3 - Realignment of the rock revetment at Hibiscus Lane Stage 4 - Construction of catcher groynes along southern Holloways Beach. The 4 stages are shown graphically below. Agenda – Ordinary Meeting 10 October 2018 - #5880544 49 Potential erosion management options for Holloways Beach Agenda – Ordinary Meeting 10 October 2018 - #5880544 50 BACKGROUND: Holloways Beach has been the subject of various beach nourishment campaigns over the years due to ongoing sand loss and erosion along the beach. The most recent being in 2016 when approximately 30,000m3 of sand was pumped onto the beach at of cost of $640,000. At the southern end of the beach erosion is managed using a rock revetment seawall, supplemented with beach nourishment to provide protection at the toe of the structure and maintain beach amenity. The benefit of the recent nourishment campaigns has been questioned due to the relatively rapid loss of sand placed at the shoreline, particularly from upper beach areas in front of the rock revetment seawall. This observed behaviour is typical of a receding shoreline with a rock revetment whereby the structure becomes progressively further seaward on the beach profile over time, leading to a gradual narrowing of the subaerial beach. In order to better understand the coastal, creek and river processes that influence sediment supply and shoreline alignment at the beach, Council commissioned an independent study of the coastal processes at Holloways Beach. The study also explored potential options for maximising the benefit of future beach nourishment campaigns. This report presents those findings as Attachment 1. COMMENT: A key objective of the study was to identify ways to maximise the benefit of future beach nourishment campaigns and maintain a subaerial beach. A rapid assessment of all potential erosion management options was undertaken to identify the preferred options for further analysis. The current and preferred management activities focus on the southern end of Holloways Beach where there is an existing threat to coastal assets. Four broad management strategies, each incorporating one or more options identified by the rapid assessment, were established as follows: 1. Reinstate and extend the groyne at Oleander Street (previously constructed in 2002). This option would be coupled with the regular recycling of sand trapped by the groyne back to erosion prone areas. Design considerations for the proposed groyne could include minimising impacts to visual amenity by lowering the structure crest elevation and/or partially concealing the structure with public access areas such as a jetty. 2. Entrance management at Barr Creek. This option would have the objective of maintaining a creek entrance position to the north of the current position. This location has historically benefited the shoreline alignment at southern Holloways Beach and provided a more consistent supply of sand to the beach. 3. Realignment of the rock revetment at Hibiscus Lane. The seaward property boundaries at Hibiscus Lane and existing rock revetment are misaligned with the ‘natural’ shoreline alignment. A setback and realignment of the structure would assist in maintaining a beach at this location. This option would involve land acquisition (i.e. the partial acquisition of freehold lots along Hibiscus Lane). Agenda – Ordinary Meeting 10 October 2018 - #5880544 51 4. Construction of catcher groynes along southern Holloways Beach. This option would require short groynes along the extent of the existing or realigned rock revetment at Hibiscus Lane. The groynes would extend the life of sand nourishment activities. The options were considered in terms of likely success, planning and legislative framework, and capital cost estimate to implement. The options are not necessarily mutually exclusive and could be sequentially implemented over time in the order listed above. The proposed actions are triggered when the current management actions are no longer maintaining the coastal hazard risks to an acceptable level. The ongoing beach monitoring program, including annual beach profile surveys, and visual inspection of the shoreline, would be used to assess the success of the current management options and determine whether planning for subsequent actions should commence. In terms of current planned activities, Council has programed for the reinstatement of the groyne at Oleander Street (Option 1) in 2019/20 ($50K – design) and 2020/21 ($600K – construction). OPTIONS: Option 1: (Recommended) That Council notes the Holloways Beach Options Assessment Report which identifies 4 preferred stages to be further investigated and implemented over time to maximise the benefit of future beach nourishment campaigns and maintain a subaerial beach. Or Option 2: That Council does not note the Holloways Beach Options Assessment Report and requests Council Officers to provide further details. CONSIDERATIONS: Risk Management The Holloways Beach Options Assessment Report will assist in prioritising works that will: x Assist in maintaining sand on the beach at the stinger net and south to the rock revetment wall x Increase the probability of more sand on the beach at the rock revetment wall which will assist in reducing wave impact on the wall at high tide during high wind events x Reduce the need for large scale beach nourishment projects in the future. Agenda – Ordinary Meeting 10 October 2018 - #5880544 52 Corporate and Operational Plans: This report relates to the following strategic goal identified in Council’s Corporate Plan: Liveability – maintain the regions relaxed nature, and ensure our community is prepared for disasters. Statutory: Council has statutory obligations under the Disaster Management Act (2003) for management of natural disasters such as floods and cyclones. CONSULTATION: This Holloways Beach Options Assessment Report was commissioned following engagement with the Holloways Beach community. The options presented in this report will be discussed with the community in further detail. ATTACHMENTS: Attachment 1 – Holloways Beach Options Assessment Report (DM#5872672) Michael Ringer Coordinator Strategic Planning Helius Visser Manager Infrastructure Palnning Bruce Gardiner General Manager Infrastructure Services Agenda – Ordinary Meeting 10 October 2018 - #5880544 $WWDFKPHQW±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µSURPRWHGRSWLRQV¶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µQDWXUDO¶ VKRUHOLQH DOLJQPHQW $ VHWEDFN DQG UHDOLJQPHQW RI WKH VWUXFWXUH ZRXOG DVVLVW LQ PDLQWDLQLQJ D EHDFK DW WKLV ORFDWLRQ 7KLV RSWLRQ ZRXOG LQYROYH
Load more

Recommended publications
  • Modeling Regional Coastal Evolution in the Bight Of
    MODELING REGIONAL COASTAL EVOLUTION IN THE BIGHT OF BENIN, GULF OF GUINEA, WEST AFRICA Ondoa Gregoire Abessolo, Magnus Larson, Rafael Almar, Bruno Castelle, Edward Anthony, Johan Reyns To cite this version: Ondoa Gregoire Abessolo, Magnus Larson, Rafael Almar, Bruno Castelle, Edward Anthony, et al.. MODELING REGIONAL COASTAL EVOLUTION IN THE BIGHT OF BENIN, GULF OF GUINEA, WEST AFRICA. Coastal Sediments’19, May 2019, Tampa, United States. 10.1142/9789811204487_0178. hal-02394959 HAL Id: hal-02394959 https://hal.archives-ouvertes.fr/hal-02394959 Submitted on 11 Dec 2019 HAL is a multi-disciplinary open access L’archive ouverte pluridisciplinaire HAL, est archive for the deposit and dissemination of sci- destinée au dépôt et à la diffusion de documents entific research documents, whether they are pub- scientifiques de niveau recherche, publiés ou non, lished or not. The documents may come from émanant des établissements d’enseignement et de teaching and research institutions in France or recherche français ou étrangers, des laboratoires abroad, or from public or private research centers. publics ou privés. MODELING REGIONAL COASTAL EVOLUTION IN THE BIGHT OF BENIN, GULF OF GUINEA, WEST AFRICA ONDOA GREGOIRE ABESSOLO1,2, MAGNUS LARSON3, RAFAEL ALMAR1, BRUNO CASTELLE4, EDWARD J. ANTHONY5, J. REYNS6,7 1. LEGOS, OMP, UMR 5566 (CNRS/CNES/IRD/Université de Toulouse), 14 Avenue Edouard Belin, 31400, Toulouse, France. [email protected], [email protected]. 2. Ecosystems and Fisheries Resources Laboratory, University of Douala, BP 2701, Douala, Cameroun. 3. Department of Water Resources Engineering, Lund University, Box 118, S-221 00, Lund, Sweden. [email protected]. 4. EPOC, OASU, UMR 5805 (CNRS - Université de Bordeaux), Allée Geoffroy Saint- Hilaire – CS 50023 – 33615, Pessac Cedex, France.
    [Show full text]
  • Island Wakes in the Southern California Bight R
    JOURNAL OF GEOPHYSICAL RESEARCH, VOL. 110, C11012, doi:10.1029/2004JC002675, 2005 Island wakes in the Southern California Bight R. M. A. Caldeira,1,2 P. Marchesiello,3 N. P. Nezlin,4 P. M. DiGiacomo,5 and J. C. McWilliams3 Received 19 August 2004; revised 21 February 2005; accepted 14 June 2005; published 18 November 2005. [1] Wind- and current-induced island wakes were investigated using a multiplatform approach of in situ, remote sensing, and numerical model simulations for the Southern California Bight (SCB). Island wind wakes are a result of sheltering from the wind, with weak wind mixing, strong heat storage, and consequent high sea surface temperature (SST). Wind wakes around Santa Catalina Island are most persistent during spring and summer months. Current wakes, caused by the disruption of the poleward traveling California Countercurrent, induce eddies to form off the north end of Catalina Island, and these move poleward every 9–12 days. Current wake eddies induce strong mixing, with low SST and high-density sea surface signatures, whereas wind wakes induce high sea surface temperature signatures associated with the formation of a well-defined shallow thermocline. Current wake eddies vary from 1 to 30 km in diameter. From numerical solutions we predicted the frequency of occurrence of current-induced wakes off Santa Catalina Island. Wind wakes were also observed off all the other islands of the SCB as seen from the analysis of synthetic aperture radar data. Time series analysis of the island mass effect phenomenon has shown a concurrence of low SST and high sea surface chlorophyll for Santa Catalina, San Nicholas, and San Clemente islands that might be related to the seasonality of the California Current and California Countercurrent.
    [Show full text]
  • Science for Solutions
    Science for Solutions NOAA COASTAL OCEAN PROGRAM Decision Analysis Series No. 15 Characterization of Hypoxia Topic 1 Report for the Integrated Assessment on Hypoxia in the Gulf of Mexico Nancy N. Rabalais, R. Eugene Turner, Dubravko Justic´, Quay Dortch, and William J. Wiseman, Jr. May 1999 U.S. DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration National Ocean Service Coastal Ocean Program GULF OF MEXICO HYPOXIA ASSESSMENT This report is the first in a series of six reports developed as the scientific basis for an integrated assessment of the causes and consequences of hypoxia in the Gulf of Mexico, as requested by the White House Office of Science and Technology Policy and as required by Section 604a of P.L. 105-383. For more information on the assessment and the assessment process, please contact the National Centers for Coastal Ocean Science at (301) 713-3060. DECISION ANALYSIS SERIES The Decision Analysis Series has been established by NOAA's Coastal Ocean Program (COP) to present documents for coastal decision mak- ers which contain analytical treatments of major issues or topics. The is- sues, topics, and principal investigators have been selected through an extensive peer review process. To learn more about the COP or the De- cision Analysis Series, please write to: NOAA National Centers for Coastal Ocean Science Coastal Ocean Program 1315 East-West Highway, Room 9700 Silver Spring, Maryland 20910 phone: 301-713-3338 fax: 301-713-4044 web: http://www.cop.noaa.gov e-mail: [email protected] Cover image: Extent of bottom water with dissolved oxygen less than 2 mg/l for July 1996 (based on data of Rabalais, Turner, and Wiseman).
    [Show full text]
  • New York Bight
    NEW YORK BIGHT RESTORATION PLAN REPORT TO CONGRESS NEW YORK BIGHT RESTORATION PLAN FINAL REPORT MARCH 1993 A PRODUCT ,.·F THE NEW YORK-NEW JERSa:'. 1j;U>\RY PROGR/,.� MANAGEMENT cu;·:�·.:RENCE TABLE OF CONTENTS EXECUTIVE SUMMARY S-1 Use Impairments and Precipitating Pollutant Factors S-1 Floatable Debris S-2 Pathogen Contamination S-2 Toxic Contamination S-3 Nutrient and Organic Enrichment S-4 Habitat Loss and Degradation S-5 Program Administration S-5 INTRODUCTION 1 General 1 Congressional Mandate 1 Prior Reports and Activities 2 Preliminary Problem Assessment 3 RESTORATION PLAN MODULES 4 Floatable Debris 5 Introduction 5 Short-term Floatables Action Plan 5 Comprehensive Floatables Plan 6 Independent Activities and Public Education 7 MARPOL Annex V 7 Recycling and Waste Reduction 8 Program Constraints 8 Program Follow-Up 9 Pathogen Contamination 9 Introduction 9 Beach/Shellfish Bed Closure Action Plan 9 Ocean Dumping Ban Act 10 Combined Sewer Overflow (CSO) Abatement Program 10 Alternative Pathogenic Indicator Study 10 Program Constraints 11 Program Follow-Up 11 3. Toxic Contamination 11 Introduction 11 Problem Characterization 12 Total Maximum Daily Load/Wasteload Allocation (TMDL/WLA) 13 Antidegradation 14 TABLE OF CONTENTS (cont.) Toxic Contamination (cont.) Dredged Material Management 14 Ecosystem Indicators 16 Other Existing Programs and Authorities 16 Program Constraints and Follow-Up 17 Nutrient and Organic Enrichment 17 Introduction 17 Problem Characterization 17 Eutrophication Modeling 18 Ecosystem Indicators 18 Program Constraints and Follow-Up 19 5. Habitat Loss and Degradation 19 Introduction 19 Habitat Inventory 19 Regulatory Programs 20 Non-Regulatory Approach 20 Geographic Targeting 20 Program Constraints 20 Program Follow-Up 21 A Comprehensive Focus 21 Program Administration 22 LIST OF FIGURES Figure 1 - The New York Bight 2 Figure 2 - The New York-New Jersey Harbor 3 Figure 3 - Management Conference Membership and Structure 5 ATTACHMENTS 1.
    [Show full text]
  • Island Wakes in the Southern California Bight R.M
    Island wakes in the Southern California Bight R.M. Caldeira, P. Marchesiello, N. Nezlin, P. Digiacomo, J. C. Mcwilliams To cite this version: R.M. Caldeira, P. Marchesiello, N. Nezlin, P. Digiacomo, J. C. Mcwilliams. Island wakes in the Southern California Bight. Journal of Geophysical Research. Oceans, Wiley-Blackwell, 2005, 110, pp.C11012. 10.1029/2004JC002675.. hal-00280338 HAL Id: hal-00280338 https://hal.archives-ouvertes.fr/hal-00280338 Submitted on 19 Feb 2021 HAL is a multi-disciplinary open access L’archive ouverte pluridisciplinaire HAL, est archive for the deposit and dissemination of sci- destinée au dépôt et à la diffusion de documents entific research documents, whether they are pub- scientifiques de niveau recherche, publiés ou non, lished or not. The documents may come from émanant des établissements d’enseignement et de teaching and research institutions in France or recherche français ou étrangers, des laboratoires abroad, or from public or private research centers. publics ou privés. JOURNAL OF GEOPHYSICAL RESEARCH, VOL. 110, C11012, doi:10.1029/2004JC002675, 2005 Island wakes in the Southern California Bight R. M. A. Caldeira,1,2 P. Marchesiello,3 N. P. Nezlin,4 P. M. DiGiacomo,5 and J. C. McWilliams3 Received 19 August 2004; revised 21 February 2005; accepted 14 June 2005; published 18 November 2005. [1] Wind- and current-induced island wakes were investigated using a multiplatform approach of in situ, remote sensing, and numerical model simulations for the Southern California Bight (SCB). Island wind wakes are a result of sheltering from the wind, with weak wind mixing, strong heat storage, and consequent high sea surface temperature (SST).
    [Show full text]
  • Special Aspects of Marine Naming
    The UNGEGN International Course on Toponymy, Manila, 2018 Special Aspects of Naming for Marine Toponymy Hyo Hyun Sung Professor, Ewha Womans University 1 CONTENTS 1. Marine Geographical Names 2. Principles, Policies, and Procedures 3. Special Issues for Sea Surface Generic Terms 2 01. Marine Geographical Names 3 1.1 Marine Geographical Names • Marine geographical names can be divided into sea surface feature names and undersea feature names. Marine Geographical Names Sea Surface Undersea Feature Feature Names Names 4 The UNGEGN International Course on Toponymy, Manila, 2018 1.1 Marine Geographical Names • Sea surface feature names can be further classified into feature types in the sea, waterway, rocks in low-tide elevation, and Indentation. Sea Surface Feature Names Rocks in low-tide Sea Waterway Indentation elevation Rock which Strait, Channel, Gulf, Bay, bight, Ocean, Sea covers and Passage Inlet/Creek uncovers 5 The UNGEGN International Course on Toponymy, Manila, 2018 1.1 Marine Geographical Names • In the case of undersea feature names, 43 generic terms were listed in B-6 (IHO, 2013) Archipelagic apron, Guyot(s), Fracture zone, Borderland, Continental rise, Continental shelf, Shelf-edge, Shelf Break, Shelf, Slope, Continental Margin, Mid-oceanic ridge, Shoal(s), Moat, Sill, Abyssal hill(s), Abyssal plain, Saddle, Apron, Median valley, Province, Reef(s), Bank(s), Tablemount(s), Caldera, Spur, Trough, Trench, Peak(s), Seamount(s), Seamount chain, Gap, Passage, Valley(s), Submarine valley(s), Sea valley(s), Promontory, Hill(s), Knoll(s), Terrace(s), Plateau, Basin, Cone, Fan, Seachannel(s), Ridge, Escarpment, Scarp, Levee, Hole, Canyon(s), Pinnacle(s), Rise, Deep(s) Except the GENERIC TERMS USED FOR HARMONIZATION WITH OTHER GAZETTEERS which are used for some features in the GEBCO Gazetteer and in other gazetteers.
    [Show full text]
  • Extent of Mississippi River Water in the Mississippi Bight and Louisiana Shelf Based on Water Isotopes Virginie Sanial, Alan Shiller, Dongjoo Joung, Peng Ho
    Extent of Mississippi River water in the Mississippi Bight and Louisiana Shelf based on water isotopes Virginie Sanial, Alan Shiller, Dongjoo Joung, Peng Ho To cite this version: Virginie Sanial, Alan Shiller, Dongjoo Joung, Peng Ho. Extent of Mississippi River water in the Mississippi Bight and Louisiana Shelf based on water isotopes. Estuarine, Coastal and Shelf Science, Elsevier, 2019, 226, pp.106196. 10.1016/j.ecss.2019.04.030. hal-02511271 HAL Id: hal-02511271 https://hal.archives-ouvertes.fr/hal-02511271 Submitted on 18 Mar 2020 HAL is a multi-disciplinary open access L’archive ouverte pluridisciplinaire HAL, est archive for the deposit and dissemination of sci- destinée au dépôt et à la diffusion de documents entific research documents, whether they are pub- scientifiques de niveau recherche, publiés ou non, lished or not. The documents may come from émanant des établissements d’enseignement et de teaching and research institutions in France or recherche français ou étrangers, des laboratoires abroad, or from public or private research centers. publics ou privés. (VWXDULQH&RDVWDODQG6KHOI6FLHQFH Contents lists available at ScienceDirect Estuarine, Coastal and Shelf Science journal homepage: www.elsevier.com/locate/ecss Extent of Mississippi River water in the Mississippi Bight and Louisiana Shelf 7 based on water isotopes ∗ Virginie Saniala, , Alan M. Shillera,DongJooJoungb, Peng Hoa a University of Southern Mississippi, School of Ocean Science & Engineering, 1020 Balch Boulevard, Stennis Space Center, MS, 39529, USA b University of Rochester, Earth and Environmental Sciences, 227 Hutchison Hall, P.O. Box 270221, Rochester, NY, 14627, USA ARTICLE INFO ABSTRACT Keywords: The northern Gulf of Mexico is a complex and very productive coastal river-dominated system that receives Mississippi River freshwater from numerous rivers including the Mississippi River.
    [Show full text]
  • THE PINNIPEDS of the CALIFORNIA CURRENT California
    ANTONELIS AND FISCUS: PINNIPEDS OF THE CALIFORNIA CURRENT CalCOFI Rep., Vol. XXI, 1980 THE PINNIPEDS OF THE CALIFORNIA CURRENT GEORGE A. ANTONELIS. JR. AND CLIFFORD H. FISCUS Marine Mammal Division Northwest and Alaska Fisheries Center National Marine Fisheries Service National Oceanic and Atmospheric Administration 7600 Sand Point Way, N.E. Seattle, WA 981 15 ABSTRACT 10s pequenos peces en 10s cardumenes y peces ana- There are six species of pinnipeds-California sea dromos. Los dos focidos, otra vez con ciertas excep- lion, Zalophus californianus; northern sea lion, Eume- ciones, predan especies diferentes. Aparentemente, el topias jubatus; northern fur seal, Callorhinus ursinus; elefante marino se alimenta en aguas mas profundas que Guadalupe fur seal, Arctocephalus townsendi; harbor la foca peluda, alimentindose de especies demersales seal, Phoca uitulina richardsi; and northern elephant y benticas, y la foca peluda se alimenta de especiesdemer- seal, Mirounga angustirostris-that inhabit the study sales costeras y neriticas, entrando ocasionalmente en rios area of the California Cooperative Oceanic Fisheries y aguas estuarinas haciendopresa de 10s peces anadromos Investigations (CalCOFI). y otros pequeiios peces que entran regularmente en estas The numbers of animals in each population are given; aguas. the size, distribution, and seasonal movements are de- scribed. The known prey species of the pinnipeds are INTRODUCTION listed for each species. The otariids, with certain excep- The California Current, its components, and the Cali- tions, consume the same kinds of prey, although in slight- fornia Cooperative Oceanic Fisheries Investigations ly different amounts. In general they feed most commonly (CalCOFI) station plan have been described many times on the smaller schooling fishes and squids of the epi- in the past and are well known (Kramer et al.
    [Show full text]
  • A Bight Is Born
    Islands in the Stream 2002: Exploring Underwater Oases A Bight is Born FOCUS Limestone The origin and structure of the southeast coastline Taconic Orogeny and continental shelf (South Atlantic Bight) Microcontinent Collisions GRADE LEVEL Alleghenian Orogeny 9 -12 (Earth Science) Equator (may be adapted to 7th-8th grade Earth Science Piedmont Standards) Monadnocks Rift basins FOCUS QUESTION Erosion What is the South Atlantic Bight and how was it Coastal formed? Volcanic Sediment LEARNING OBJECTIVES Continental shelf Students will sequence and model the events lead- Regresses ing to the formation of the southeastern coast of the Ecosystems United States, including the formation of the South Atlantic Bight. The words listed as key words are integral to the unit. There are no formal signs in American Sign Students will examine what forces have changed Language for any of these words and many are the structure of this area over geologic time, pre- difficult to lipread. Having the vocabulary list on dict what changes are yet to occur and how these the board as a reference during the lesson will be changes have and may affect the populations living extremely helpful. This activity presents a great in this area, including man. deal of new material and requires a large amount of reading and attention. Many new words which ADDITIONAL INFORMATION FOR TEACHERS OF DEAF STUDENTS might be unfamiliar are included. This activity is In addition to the words listed as Key Words, the best conducted as a review or as an activity after following words should be part of the vocabulary the concepts have been taught.
    [Show full text]
  • Robson Bight (Michael Bigg) Er #111
    ROBSON BIGHT (MICHAEL BIGG) ER #111 ORIGINAL To protect key habitats for killer whales, prevent their PURPOSE harassment while using these habitats, and maintain unique opportunities to research and observe killer whales; to protect a pristine estuary and forested shorelines OVERVIEW Date established: 17 June 1982 Location: Johnstone Strait coastline, Date amended: 18 March 1988 10 km SE of Telegraph Date of second Cove, Vancouver Island amendment: 10 Aug. 1989 ORC #: 3111 Latitude: 50º21’N Map number: 92 L/7; L/10 Longitude: 126º35’W Marine chart number: 3568 Total Area: 1,715 ha Elevation: -400-300 m Land: 467 ha Marine: 1,248 Access: Upland portion of the Reserve is closed to public access by Order-in-Council (no. 1316, 20 Aug. 1992) Permit required to enter reserve area. Accessible by boat. Biogeoclimatic Zone: Coastal Western Hemlock (CWH) Biogeoclimatic Variant: CWHvm 1 CWH Submontane Very Wet Maritime Terrestrial Ecosection: Northern Island Mountains Marine Ecosection: Johnstone Strait Region: Vancouver Island Management Area: Cape Scott COMPOSITION Physical: The reserve includes a 1248 ha marine portion and a 505 ha forested upland portion. This comprises 10.7 km of Vancouver Island shoreline including a few rocky headlands and one significant bay (Robson Bight), but lacks sheltered moorage. Shoreline materials are largely rock and cobble, except for the Tsitika River estuary which has deposits of gravel, sand, and mud. Water depths plunge rapidly to 400 m or more in the glacially scoured center of Johnstone Strait. Strong tidal currents result in constant mixing of Johnstone Strait waters at all depths, and in narrow ranges in salinity and dissolved oxygen.
    [Show full text]
  • North Alaska Peninsula Commercial Salmon Annual Management Report, 1996
    NORTH ALASKA PENINSULA COMMERCIAL SALMON ANNUAL MANAGEMENT REPORT, 1996 By Robert L. Murphy Arnold R. Shaul and Robert S. Berceli Regional Information Report1 No. 4K97-25 Alaska Department of Fish and Game Commercial Fisheries Management and Development Division 211 Mission Road Kodiak, Alaska 99615 March 1997 1 The Regional Information Report Series was established in 1987 to provide an information access system for all unpublished division reports. These reports frequently serve diverse ad hoc informational purposes or archive basic uninterpreted data. To accommodate timely reporting of recently collected information, reports in this series undergo only limited internal review and may contain preliminary data; this information may be subsequently finalized and published in the formal literature. Consequently, these reports should not be cited without prior approval of the author or the Commercial Fisheries Management and Development Division. ACKNOWLEDGMENTS The authors would like to thank the management and research staff that worked on the North Alaska Peninsula during 1996. The following employees worked at projects on the North Peninsula: Dan Connolly, Steve Krueger at Nelson River, Tracy McKinion and Meesha Mangiaracina at Port Moller, Tim Clark and Lee Walters at Bear Lake, Judy Brandt and Matt Batalden at Sandy River, and Mark Witteveen and Ty Swanson at Ilnik River. Other field employees assisted for short periods and then worked on South Peninsula projects. Their names are listed in the acknowledgments of the Alaska Peninsula and Aleutian Islands commercial salmon fishery summary report. The authors wish to give thanks to all those that contributed countless hours to the success of the projects. Thanks is also extended to Lucinda Neel for her publication expertise, Joanne Shaker for statistical runs, and Wayne Donaldson and Pete Probasco for supervisory direction.
    [Show full text]
  • Ination# 150150 I[T:I#:L9j:,T:I:-:" S-":,Lf
    State of Alaska Nomination Form Department of Fish and Game Anadromous Waters Catalog Division of Sport Fish Region SWT COLD BAY A-2 AWC Number of Water Body 283-32-10100-0010 Name of Water body Old Mans Lagoon E usGS Name n Local Name addition I I oelaiqt n Correction n Backup Information ination# 150150 fur 'lsDate Revision Year: ZA/6 rlq Date "-rlzr Date \iIr{ Date OBSERVATION INFORMATION Species Date(s) Observed Rearing Present Anadromous Chum salmon X E D ! u ! |MPoRTANT:Providea||supportingdocumentationthatthiswaterbodyisimportantforth": numberoffishandlifestagesobserved; samplingmethods,samplingouraiionanoarea""rpLo; copieJoffierd-not"r; !t". ntt""n"-pyofamapshov'ing as \i\€rias other inrormation such ffiL"i4f;XtlXi$:5]fl,;if:r"*"Jt$rifihsnedes, as: specific stream reaches observeo as spawnins or rearins Gomments 283'32'10100listed in AK Peninsula M"""g"r""tArea Satmon sy"tilITlillF- nr""ent due to its simirarity to previousry i[T:i#:l9j:,T:i:-:"_s-":,lf-ly,g,:l"l_".:l_".lrrJ1listed AWC water bodies as either a ,'lake,'or,,polygon,; Name of Observer (please print): Signature: Agency: Address: Thiscertifiesthatinmybest.professiona|judgrnerrtandbe|iefthe"oou included in or deleted from the Anadromous foaters Catalog. Date:_ Revision 11/13 Name of Area Biologist (please print): cFp g& E '= i; e g .s3 H X.= e $i i g E s EHoi 5: P: s''B=: E 6 =3 EE .+:. ! s E.o '= E., o gP i E =O EE .E ! F A sJF'rp P F F i ! g€ * I E! ; ': FO O EP g= ;F:u E-E ig 2 +E P Es F *qi ie gE ; F ! € E gg E E E E € 7,1 s E n -e E:(ca B E =*= 'E E or-.
    [Show full text]