The INTERCAFE Cormorant Management Toolbox
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Niche Overlap Among Anglers, Fishers and Cormorants and Their Removals
Fisheries Research 238 (2021) 105894 Contents lists available at ScienceDirect Fisheries Research journal homepage: www.elsevier.com/locate/®shres Niche overlap among anglers, fishersand cormorants and their removals of fish biomass: A case from brackish lagoon ecosystems in the southern Baltic Sea Robert Arlinghaus a,b,*, Jorrit Lucas b, Marc Simon Weltersbach c, Dieter Komle¨ a, Helmut M. Winkler d, Carsten Riepe a,c, Carsten Kühn e, Harry V. Strehlow c 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, Humboldt-Universitat¨ zu Berlin, Invalidenstrasse 42, 10115, Berlin, Germany c Thünen Institute of Baltic Sea Fisheries, Alter Hafen Süd 2, 18069, Rostock, Germany d General and Specific Zoology, Institute of Biological Sciences, University of Rostock, Rostock, Germany e Mecklenburg-Vorpommern Research Centre for Agriculture and Fisheries, Institute of Fisheries, Fischerweg 408, 18069, Rostock, Germany ARTICLE INFO ABSTRACT Handled by Steven X. Cadrin We used time series, diet studies and angler surveys to examine the potential for conflict in brackish lagoon fisheries of the southern Baltic Sea in Germany, specifically focusing on interactions among commercial and Keywords: recreational fisheries as well as fisheries and cormorants (Phalacrocorax carbo sinensis). For the time period Fish-eating wildlife between 2011 and 2015, commercial fisheries were responsible for the largest total fish biomass extraction Commercial fisheries (5,300 t per year), followed by cormorants (2,394 t per year) and recreational fishers (966 t per year). Com Human dimensions mercial fishing dominated the removals of most marine and diadromous fish, specifically herring (Clupea Conflicts Recreational fisheries harengus), while cormorants dominated the biomass extraction of smaller-bodied coastal freshwater fish, spe cifically perch (Perca fluviatilis) and roach (Rutilus rutilus). -
Long-Range Interpretive Plan, Dry Tortugas National Park
LONG-RANGE INTERPRETIVE PLAN Dry Tortugas National Park 2003 Cover Photograph: Aerial view of Fort Jefferson on Garden Key (fore- ground) and Bush Key (background). COMPREHENSIVE INTERPRETIVE PLAN Dry Tortugas National Park 2003 LONG-RANGE INTERPRETIVE PLAN Dry Tortugas National Park 2003 Prepared by: Department of Interpretive Planning Harpers Ferry Design Center and the Interpretive Staff of Dry Tortugas National Park and Everglades National Park INTRODUCTION About 70 miles west of Key West, Florida, lies a string of seven islands called the Dry Tortugas. These sand and coral reef islands, or keys, along with 100 square miles of shallow waters and shoals that surround them, make up Dry Tortugas National Park. Here, clear views of water and sky extend to the horizon, broken only by an occasional island. Below and above the horizon line are natural and historical treasures that continue to beckon and amaze those visitors who venture here. Warm, clear, shallow, and well-lit waters around these tropical islands provide ideal conditions for coral reefs. Tiny, primitive animals called polyps live in colonies under these waters and form skeletons from cal- cium carbonate which, over centuries, create coral reefs. These reef ecosystems support a wealth of marine life such as sea anemones, sea fans, lobsters, and many other animal and plant species. Throughout these fragile habitats, colorful fishes swim, feed, court, and thrive. Sea turtles−−once so numerous they inspired Spanish explorer Ponce de León to name these islands “Las Tortugas” in 1513−−still live in these waters. Loggerhead and Green sea turtles crawl onto sand beaches here to lay hundreds of eggs. -
Wetland Birds in the Recent Fossil Record of Britain and Northwest Europe John R
Wetland birds in the recent fossil record of Britain and northwest Europe John R. Stewart 18. Dalmatian Pelican Pelecanus crispus, Deep Bay, Mai Po, Hong Kong, February 1995. Geological evidence suggests that Dalmatian Pelicans bred in Britain, and in other western European countries (including The Netherlands and Denmark), prior to and during the Iron Age. Ray Tipper. ABSTRACT Wetland habitats in Britain and other parts of western Europe have been severely depleted during the latter part of the Holocene owing principally to drainage and land reclamation. Changes in the distribution of a number of wetland bird species can be gauged from archaeological and geological site records of larger birds, whose remains are generally better preserved. Key species are discussed here, including a heron Nycticorax fenensis and a crane Grus primigenia, two extinct species named on possibly uncertain fossil evidence. We can let our minds wander back to the misty realms of fifteen hundred years ago, to a wonderful Britain which was alive with bird song from coast to coast, which sheltered wolves, bears and boars in its dark woodlands, cranes in its marshes, bustards on its heaths and beavers by its streams, and we can visualize the great pink pelican sweeping on its huge pinions over the reedy waterways which then penetrated by secret paths into the very heart of what is now Somerset. (Whitlock, 1953) © British Birds 97 • January 2004 • 33-43 33 Wetland birds in the recent fossil record f all the major habitats in northwest species, including Mute Swan Cygnus olor and Europe, wetlands may have been the Common Crane, may have become physically Omost severely depleted during the smaller owing to habitat impoverishment. -
Delta Sound Connections
DELTA SOUND 2010 CONNECTIONS Natural history and science news from Prince William Sound and the Copper River Delta Glaciers and rainforest form our backyard An introduction to the region discharge rate, estimated at 61,000 Nancy Bird, cubic ft/sec, that drives production in PWS Science Center the Gulf of Alaska. Depositing over 75 million tons of silt annually, the river Welcome to the Prince William has built a layer of silt over 600 feet Sound and Copper River Delta region! deep over the past 800,000 years. The intricately indented coastline of The Delta’s vast wetlands provide the Sound is separated from the Gulf rich bird habitat, making it the largest of Alaska by a ring of mountainous site in the Western Hemisphere islands and is the northern boundary Shorebird Reserve system. Two of the coastal temperate rainforest. hundred and thirty-five species of birds Its scenic character owes much to the have been identified and annually over glacial sculpting of the land during the 16 million migrating shorebirds and Ice Ages. waterfowl stop here. Today, over 20 glaciers terminate at Hundreds of streams and intertidal sea level while numerous others cling waters support a large commercial to steep mountainsides at the heads of salmon fishery. Ranked 12th in the rocky fjords. Secluded coves, beaches U.S., the fishing port of Cordova and rocky tree-covered islands offer annually catches an excess of 100 countless opportunities for exploration million pounds of fish, with an ex- and discovery in the Sound. vessel value exceeding $50 million. The adjacent Copper River Delta This area is among the most is a 300-square mile band of grassy seismically active regions on Earth. -
STATE-OF-THE-ART METHODS for Research, Planning, and Determining the Benefits of Outdoor Recreation
STATE-OF-THE-ART METHODS for research, planning, and determining the benefits of outdoor recreation PACIFIC SOUTHWEST Forest and Ranee Experiment station FOREST SERVICE U.S.DEPARTMENT OF AGRICULTURE P.O. BOX 245, BERKELEY, CALIFORNIA 94701 USDA FOREST SERVICE GENERAL TECHNICAL REPORT PSW-20 11977 STATE-OF-THE-ART METHODS for research, plan, ¥qand determining the benefits of oudoor recreation Gary H. Elsner, Compiler CONTENTS Improvement of Demand Studies as Tool for Planning Outdoor Recreation. ......................... 1 H. N. van Lier Forecasting the Demand-Response to Changes in Recreational Site Characteristics ..................... 11 Peter Greiq On the Use of Home and Site Surveys in Recrea Research . 23 Mordechai Shechter Relative Value of Selected Outdoor Recreation Activity Areas . 27 Joseph E. Hoffman, Jr. A Recreational Visitor Travel Simulation Model as an Aid to Management Planning. ..................... 31 Robert C. Lucas and Mordechai Shechter A Survey of Wildlife-Related Recreation in the Tennessee ValleyRegion ......................... 36 John L. Mechler and E. Lawrence Klein Mathematical programming in the Context of Planning for Multiple Goals ........................ 46 A. B. Rudra Investigations on Recreational Forested Areas. ........ 60 Ulrich Amer Elsner, Gary H., compiler. 1977. State-of-the-art methods for research, planning, and determining the benefits of outdoor recreation. USDA Forest Serv. Gen. Tech. Rep. PSW-20, 62 p., illus. Pacific South- west Forest and Range Exp. Stn., Berkeley, Calif. These eight -
BOURGAS LAST.Pmd
WATERBIRDS OF BOURGAS WETLANDS RESULTS AND EVALUATION OF THE MONTHLY WATERBIRD MONITORING 1996 - 2002 Milko Dimitrov, Tanyo Michev, Lyubomir Profirov, Konstantin Nyagolov 1 WATERBIRDS OF BOURGAS WETLANDS 2 Milko Dimitrov, Tanyo Michev, Lyubomir Profirov, Konstantin Nyagolov WATERBIRDS OF BOURGAS WETLANDS RESULTS AND EVALUATION OF THE MONTHLY WATERBIRD MONITORING 1996 - 2002 Drawings Assen Ignatov Cover design Ivan Yanchev Editor of English Translation Vladimir Pomakov PENSOFT PUBLISHERS BULGARIAN BIODIVERSITY FOUNDATION BOURGAS WETLANDS PUBLICATION SERIES No 6 2005 3 WATERBIRDS OF BOURGAS WETLANDS WATERBIRDS OF BOURGAS WETLANDS Results and Evaluation of the Monthly Waterbird Monitoring 1996 - 2002 Milko Dimitrov, Tanyo Michev, Lyubomir Profirov, Konstantin Nyagolov We dedicate this book to Alexandur Prostov (1926 – 2000), born in Bourgas, who was one of the first to draw the attention of the Bulgarian public to the exceptional richness and diversity of the wildlife and especially the birds of Bourgas Lakes First published 2005 Pensoft Publishers ISBN 954-642-236-3 Pensoft Series Faunistica No 44 ISSN 1312-0174 Bulgarian Biodiversity Foundation ISBN 954-9959-33-3 This book was published with the financial support of the Swiss Agency for Development and Co-operation We recommend this book to be cited in the following way: Dimitrov, M., T. Michev, L. Profirov, K. Nyagolov. 2005. Waterbirds of Bourgas Wetlands. Results and Evaluation of the Monthly Waterbird Monitoring 1996-2002. Bulgarian Biodiversity Foundation and Pensoft Publishers, Sofia–Moscow, 160 pp. On the back cover: Sattelite photo of the region of Bourgas Bay (Original Data © ESA; 1992; Distributed by Eurimage) © PENSOFT Publishers All rights reserved. No part of this publication may be reproduced, stored in a retrieval system or transmitted in any form by any means, electronic, mechanical, photo copying, recording or otherwise, without the prior written permission of the copyright owner. -
DRAFT Aquatic Life and Aquatic-Dependent Wildlife Selenium Water Quality Criterion for Freshwaters of California (Xx November 2018)
United States Region 9 & Office of Water EPA-xxx-x-xx-xxx Environmental Protection November 2018 Agency DRAFT Aquatic Life and Aquatic-Dependent Wildlife Selenium Water Quality Criterion for Freshwaters of California (xx November 2018) U.S. Environmental Protection Agency Region 9 Water Division San Francisco, CA U.S. Environmental Protection Agency Office of Water Office of Science and Technology Washington, D.C. TABLE OF CONTENTS TABLE OF CONTENTS ....................................................................................................................... II LIST OF TABLES .............................................................................................................................. IV LIST OF FIGURES .............................................................................................................................. V EXECUTIVE SUMMARY .................................................................................................................... IX PART 1 INTRODUCTION AND BACKGROUND ................................................................................. 1 1.1 Early Selenium Efforts .................................................................................................... 1 1.2 California Toxics Rule .................................................................................................... 4 PART 2 PROBLEM FORMULATION ................................................................................................. 6 2.1 Overview of Selenium Sources and Occurrence in -
Review of the Population Status and Management of Double-Crested Cormorants in Ontario" (1997)
University of Nebraska - Lincoln DigitalCommons@University of Nebraska - Lincoln Symposium on Double-Crested Cormorants: Population Status and Management Issues in USDA National Wildlife Research Center the Midwest Symposia December 1997 Review of the Population Status and Management of Double- Crested Cormorants in Ontario C. Korfanty W.G. Miyasaki J.L. Harcus Follow this and additional works at: https://digitalcommons.unl.edu/nwrccormorants Part of the Ornithology Commons Korfanty, C. ; Miyasaki, W.G.; and Harcus, J.L., "Review of the Population Status and Management of Double-Crested Cormorants in Ontario" (1997). Symposium on Double-Crested Cormorants: Population Status and Management Issues in the Midwest. 14. https://digitalcommons.unl.edu/nwrccormorants/14 This Article is brought to you for free and open access by the USDA National Wildlife Research Center Symposia at DigitalCommons@University of Nebraska - Lincoln. It has been accepted for inclusion in Symposium on Double- Crested Cormorants: Population Status and Management Issues in the Midwest by an authorized administrator of DigitalCommons@University of Nebraska - Lincoln. Symposium on Double-Crested Cormorants 130 Population Status and Management of Double-Crested Cormorants in Ontario Review of the Population Status and Management of Double-Crested Cormorants in Ontario By C. Korfanty, W. G. Miyasaki, and J. L. Harcus Abstract: We prepared this review of the status and pairs on the Canadian Great Lakes in 1997, with increasing management of double-crested cormorants (Phalacrocorax numbers found on inland water bodies. Double-crested auritus) in Ontario, with management options, in response to cormorants are protected in Ontario, and there are no concerns expressed about possible negative impacts of large population control programs. -
Double-Crested Cormorant Conflict Management and Research on Leech Lake 2005 Annual Report
Double-crested Cormorant Conflict Management And Research On Leech Lake 2005 Annual Report Prepared by Leech Lake Band of Ojibwe Division of Resources Management Minnesota Department of Natural Resources US Department of Agriculture Wildlife Services Photo by Steve Mortensen This report summarizes cormorant conflict management and research that occurred on Leech Lake during 2005. The overall goal of this project is to determine at what level cormorant numbers can be managed for on the lake without having a significant negative effect on gamefish and on other species of colonial waterbirds that nest alongside cormorants on Little Pelican Island. Work conducted this summer went much better than anticipated and we are well on the way towards resolving cormorant conflict issues on Leech Lake. Cormorant Management Environmental Assessment An environmental assessment (EA) was prepared that gathered and evaluated information on cormorants and their effects on fish and other resources. We compiled, considered, and incorporated input from all parties that have an interest or concern about the proposed controlling of cormorants on Leech Lake. This document could have been written specifically so the Leech Lake Band could address the Leech Lake cormorant colony, but it was decided to prepare it as a joint effort between LLBO Division of Resources Management (DRM) and USDA Wildlife Services (WS), MN Department of Natural Resources (MN DNR), and US Fish and Wildlife Service (FWS). WS served as lead agency in this effort. By preparing it in this manner, it could be utilized by other agencies elsewhere in Minnesota if resource damage was documented. The EA proposed to reduce the Leech Lake colony more than 10% so, under provisions of the Federal Depredation Order, the Leech Lake Band submitted a request to the US Fish and Wildlife Service to go to a higher population reduction limit (reduction to 500 nests). -
PIELC-2016-Broshure-For-Sure.Pdf
WelcOME! Welcome to the Public Interest Environmental Law Conference (PIELC), the premier annual gathering for environmen- talists in the world! Now in its 34th year, PIELC unites thousands of activists, attorneys, students, scientists, and commu- nity members from over 50 countries to share their ideas, experience, and expertise. With keynote addresses, workshops, films, celebrations, and over 130 panels, PIELC is world-renowned for its energy, innovation, and inspiration. In 2011, PIELC received the Program of the Year Award from the American Bar Association Section of Environment, Energy, and Resources, and in 2013 PIELC received the American Bar Assoication Law Student Division’s Public Interest Award. PIELC 2016, A LEGacY WORTH LeaVING “A Legacy Worth Leaving” is a response to the drastic need of daily, direct action of individuals in their communities. Cohesive leadership models must acknowledge that individual participation directs society’s impact on interdependent community and global systems. Diversity of cultures, talents, and specialties must converge to guide community initiatives in a balanced system. Each has a unique role that can no longer be hindered by the complacent passive-participation models of traditional leadership schemes. Building community means being community. This year at PIELC, we will be exploring alternative methods of approaching current ecological, social, and cultural paradigms. First, by examining the past – let us not relive our mistakes. Then, by focusing on the present. Days to months, months to years, years to a lifetime; small acts compound to the life-story of a person, a place, a planet. What legacy are you leaving? WIFI GUEST ACCOUNT LOGIN INSTRUCTIONS 1) Connect to the “UOguest” wireless network (do NOT connect to the “UOwireless” network). -
Status of the Double-Crested Cormorant (Phalacrocorax Auritus) in North America
STATUS OF THE DOUBLE-CRESTED CORMORANT (PHALACROCORAX AURITUS) IN NORTH AMERICA PREPARED BY: LINDA R. WIRES FRANCESCA J. CUTHBERT DALE R. TREXEL ANUP R. JOSHI UNIVERSITY OF MINNESOTA DEPARTMENT OF FISHERIES AND WILDLIFE 1980 FOLWELL AVE. ST. PAUL, MN 55108 USA MAY 2001 PREPARED UNDER CONTRACT WITH *U.S. FISH AND WILDLIFE SERVICE *CONTENT MATERIAL OF THIS REPORT DOES NOT NECESSARILY REPRESENT THE OPINIONS OF USFWS Recommended citation: Wires, L.R., F.J. Cuthbert, D.R. Trexel and A.R. Joshi. 2001. Status of the Double-crested Cormorant (Phalacrocorax auritus) in North America. Final Report to USFWS. FINAL DRAFT Executive Summary i EXECUTIVE SUMMARY Introduction: Since the late-1970s, numbers of Double-crested Cormorants (Phalacrocorax auritus) (DCCO) have increased significantly in many regions of North America. A variety of problems, both real and perceived, have been associated with these increases, including impacts to aquaculture, sport and commercial fisheries, natural habitats, and other avian species. Concern is especially strong over impacts to sport and commercial fishes and aquaculture. Because of increasing public pressure on U.S. government agencies to reduce DCCO conflicts, the USFWS is preparing an Environmental Impact Statement (EIS), and in conjunction with the U.S. Department of Agriculture/Wildlife Services (USDA/WS) and state resource management agencies, will develop a national management plan for the DCCO. This assessment will be used to prepare the EIS and management plan. Populations and trends: The DCCO breeding range in North America is divided into five geographic areas. Since at least 1980, numbers have clearly increased in three of the breeding areas: Canadian and U.S. -
D4.2.1 Review of the Knowledge of the Target Species at the Selected
ECOlogical observing System in the Adriatic Sea: oceanographic observations for biodiversity Priority Axis 3: Environment and cultural heritage Specific Objective 3.2: Contribute to protect and restore biodiversity D4.2.1 Review of the knowledge of the target species at the selected Natura 2000 sites WP4 – Establishing the Ecological Observing System in the Adriatic Sea (ECOAdS) A4.2 – Integration of ecological observing system with Natura 2000 target species PP5 Blue World Institute / Jure Miočić-Stošić, Grgur Pleslić Other involved partners: PP1, PP4, PP6, PP8 Final Public 29th June 2020 European Regional Development Fund www.italy-croatia.eu/ecoss Contents 1. INTRODUCTION ..................................................................................................................................... 4 2. ALGAE .................................................................................................................................................... 7 2.1 Fucus (Fucus virsoides) ........................................................................................................................ 7 3. PLANTS .................................................................................................................................................. 9 3.1 Virginia saltmarsh mallow (Kosteletzkya pentacarpos) ...................................................................... 9 3.2 Venice salicorne (Salicornia veneta) ................................................................................................. 10