See discussions, stats, and author profiles for this publication at: https://www.researchgate.net/publication/278389962 Herring - An analysis of spawning ground management, ecological conditions and human impacts in Greifswald Bay, Vistula Lagoon and Hanö Bight Book · December 2014 READS 56 14 authors, including: Dariusz P. Fey Piotr Margonski National Marine Fisheries Research Institute National Marine Fisheries Research Institute 28 PUBLICATIONS 275 CITATIONS 38 PUBLICATIONS 154 CITATIONS SEE PROFILE SEE PROFILE Patrick Polte Harry Vincent Strehlow Thünen Institute Thünen Institute 23 PUBLICATIONS 200 CITATIONS 17 PUBLICATIONS 57 CITATIONS SEE PROFILE SEE PROFILE Available from: Dariusz P. Fey Retrieved on: 13 May 2016 HERRING An analysis of spawning ground management, ecological conditions and human impacts in Greifswald Bay, Vistula Lagoon and Hanö Bight. HERRING An analysis of spawning ground management, ecological conditions and human impacts in Greifswald Bay, Vistula Lagoon and Hanö Bight. HERRING An analysis of spawning ground management, ecological conditions and human impacts in Greifswald Bay, Vistula Lagoon and Hanö Bight. AUTHORS NATIONAL MARINE FISHERIES EUCC – The COASTAL RESEARCH INSTITUTE UNION GERMANY Dariusz P. Fey Nardine Stybel Adam M. Lejk Anne Hiller Piotr Margonski Michael van Laak Lena Szymanek Iwona Psuty Editors WORLD MARITIME Review: Tomasz Nermer UNIVERSITY THUNEN INSTITUTE OF Lilitha Pongolini BALTIC SEA FISHERIES Henrik Nilsson Friederike Lempe Harry V Strehlow Patrick Polte Dorothee Moll Print and layout: CA Andersson, Malmö, Sweden, 2014 ISBN: 978-91-637-7839-1 Disclaimer clause This book reflects the authors’ views and the EU Commission and the Managing Authority is not liable for any use that may be made of the information contained therein. PREFACE .................................................... 5 Future consequences of ecological changes ..................40 Temperature increase and sea level increase .......................... 40 Temperature increase and ice-cover period ........................... 41 INTRODUCTION .......................................... 7 Swedish case study area – Hanö Bight .................43 SPAWNING AREAS AND POPULATIONS ............ 13 Environmental monitoring programme ................................ 43 Present ecological situation .........................................45 Case study areas .................................................14 Temperature and salinity ....................................................... 45 Herring populations ...........................................18 Oxygen.................................................................................. 47 Hydrodynamics ..................................................................... 47 Turbidity ............................................................................... 47 THE ECOLOGICAL ENVIRONMENT ................ 23 Nutrients ............................................................................... 47 German case study area - Greifswald Bay .............23 Phytoplankton ...................................................................... 49 Environmental monitoring programme ................................ 23 Zooplankton ......................................................................... 50 Herring response to ecological parameters ...................23 Macrophytes ........................................................................ 51 Water temperature ................................................................ 23 Alien species ......................................................................... 52 Salinity .................................................................................. 24 Herring spawning areas ........................................................ 54 Oxygen supply ...................................................................... 24 Future consequences of ecological changes ..................55 pH value ................................................................................ 25 Climate change, temperature and salinity ............................. 55 Hydrodynamics ..................................................................... 25 Hydrography and eutrophication ......................................... 56 Solar radiation ....................................................................... 26 Phytoplankton and zooplankton ........................................... 57 Interactions between the physical environment, Alien species ......................................................................... 57 spawning beds and herring biology ..............................26 Temperature, salinity and seabed substrate ........................... 26 Nutrients, eutrophication and HUMAN ACTIVITIES AND SPATIAL USES .......... 59 ecosystem impact .................................................................. 27 German case study area - Greifswald Bay .............59 Species introduction and ecosystem impacts ......................... 30 Overview of human uses and Climate change and ecosystem impact .................................. 31 their spatial position ...................................................59 Polish case study area – Vistula Lagoon ...............31 Commercial and recreational fishery ..................................... 59 Environmental monitoring programme ................................ 31 Tourism ................................................................................. 60 Present ecological situation .........................................31 Marine transport – marinas, fishing harbours, industrial ports and waterways .............................................................. 61 Water temperature ................................................................ 31 Energy supply (pipelines) and dredging ................................ 63 Salinity .................................................................................. 32 Nature conservation .............................................................. 64 Oxygen.................................................................................. 33 Adjacent land use (agriculture, industry) ............................... 66 Ice cover ................................................................................ 33 Potential ecosystem effects ..........................................66 Turbidity ............................................................................... 33 Pollution and its impacts on herring egg development ......... 66 Hydrodynamics ..................................................................... 34 Coastal modification and its impacts on herring egg Bottom sediments ................................................................. 34 development .......................................................................... 68 Nutrient conditions and eutrophication ................................ 35 Interaction of multiple anthropogenic effects ....................... 69 Phytoplankton ...................................................................... 36 Polish case study area – Vistula Lagoon ...............70 Zooplankton ......................................................................... 36 Overview of human uses and their Macrophytes ......................................................................... 37 spatial position ...........................................................70 Invasive species ..................................................................... 39 Commercial and recreational fishing ..................................... 70 Fish assemblages and seasonal movements ........................... 40 Marine transport – marinas, fishing harbours, Fish spawning area ................................................................ 40 industrial ports and waterways ............................................. 75 Tourism ................................................................................. 80 Institutional framework for resource extraction . 132 Bordering land use ................................................................ 81 Germany ..................................................................132 Energy supply, dredging, channelling, and sand extraction ... 83 Poland ......................................................................133 Designated nature conservation areas and Sweden .....................................................................134 protection areas ..................................................................... 84 Ecosystem effects and future consequences ..................85 Institutional framework for water and shipping administration ................................... 135 Commercial and recreational fishing ..................................... 85 Germany ..................................................................135 Marinas and harbours .......................................................... 87 Poland ......................................................................136 Tourism ................................................................................. 88 Sweden .....................................................................139 Bordering land use ............................................................... 88 Marine transport ................................................................... 88 Energy supply ...................................................................... 88 SUMMARY AND CONCLUSIONS .....................143 Dredging and sand extraction .............................................