Guidelines and Management Practices for Artificial Reef Siting, Use, Construction, and Anchoring in Southeast Florida

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Guidelines and Management Practices for Artificial Reef Siting, Use, Construction, and Anchoring in Southeast Florida Guidelines and Management Practices for Artificial Reef Siting, Use, Construction, and Anchoring in Southeast Florida Updated: June 2011 TP-176 Southeast Florida Coral Reef Initiative Maritime Industry and Coastal Construction Impacts (MICCI) Local Action Strategy Project 18 & 19 Southeast Florida Coral Reef Initiative Guidelines and Management Practices for Artificial Reef Siting, Use, Construction, and Anchoring in Southeast Florida Completed in Fulfillment of PR4104144-V3 for Southeast Florida Coral Reef Initiative Maritime Industry and Coastal Construction Impacts (MICCI) Local Action Strategy Project 18 & 19 Florida Department of Environmental Protection Coral Reef Conservation Program 1277 N.E. 79th Street Causeway Miami, FL 33138 This report should be cited as follows: Lindberg, W.J. and W. Seaman (editors). 2011. Guidelines and Management Practices for Artificial Reef Siting, Use, Construction, and Anchoring in Southeast Florida. Florida Department of Environmental Protection. Miami, FL. xi and 150 pages. This publication was edited and revised for the Florida Department of Environmental Protection (FDEP) by the Florida Sea Grant College Program at the University of Florida. Funding for this publication was provided by a Coral Reef Conservation Program grant from the U.S. Department of Commerce, National Oceanic and Atmospheric Administration (NOAA) Office of Ocean and Coastal Resource Management Award No. NA06N0S4190100, and by the FDEP, through its Coral Reef Conservation Program. The total cost of the project was $24,723, of which 100 percent was provided by NOAA. The views, statements, findings, conclusions and recommendations expressed herein are those of the author(s) and do not necessarily reflect the views of the State of Florida, the Department of Commerce, NOAA or any of its subagencies. Cover photograph courtesy of: Miami-Dade County Department of Environmental Resource Management Maritime Industry and i Guidelines & Management Practices for Artificial Reefs Coastal Construction Impacts June 2011 Southeast Florida Coral Reef Initiative Contributors Joanna C. Walczak, Florida Department of Environmental Protection Coral Reef Conservation Program Keith Mille, Florida Fish and Wildlife Conservation Commission Artificial Reef Program Jocelyn Karazsia, National Oceanic and Atmospheric Administration National Marine Fisheries Service – Habitat Conservation Division Melody White, U.S. Army Corps of Engineers Steve Blair, Sara Thanner and Melissa Sathe, Miami – Dade County Ken Banks, Broward County Janet Phipps, Carman Vare and Brock Stanaland, Palm Beach County Kathy Fitzpatrick and Baret Barry, Martin County Editors and Contributors William Lindberg and William Seaman, University of Florida Dorothy Zimmerman, Florida Sea Grant College Program at the University of Florida Acknowledgments The contributors drew significant information from a plan for artificial reefs in Florida prepared in 1992 by DeWitt Myatt and Evelyn Myatt, and are grateful for that resource. The editors thank Jackie Whitehouse for technical assistance in preparing the manuscript. Additional thanks to the MICCI 18&19 project team and public reviewers. Maritime Industry and ii Guidelines & Management Practices for Artificial Reefs Coastal Construction Impacts June 2011 Southeast Florida Coral Reef Initiative Preface This document is one means of putting into action concerns for the conservation and health of the important, valued and numerous coral reefs of southeast Florida. It addresses a specific type of undersea construction that has impacted coral ecosystems but also offers a tool for repair of damage to them. That tool is the deployment of structures on the sea floor to serve as artificial reefs. In fact, artificial habitat materials such as limestone boulders and concrete are already in use to “mimic” to varying degrees the natural structure and ecological function of coral habitats, and thereby hasten recovery and repair damage from accidental vessel groundings, as well as intentional disturbances such as occur with the laying of submarine cables. To the degree possible, state-of-the-art practices concerning artificial reef science and technology are presented in this document. In some cases, so-called “best practices” are based on solid research; in others it is a matter of relying on tried-and-true practical experiences that have evolved over time. As a first document of its kind in Florida, it offers a benchmark for developing future science-based guidance for the placement of artificial reefs in waters where coral reefs are found. At this stage of the technology, it is realistic to defer “teasing out” best management practices into distinct pages until the next edition of this document. The history of planning and developing artificial reefs in southeast Florida, as well as across the state generally, features strong involvement and leadership of volunteers. In many cases, private citizens laid the foundations for more recently organized artificial reef programs in county governmental departments. Meanwhile, this document came to exist because a group of public servants, employed in various federal, state, and mostly local agencies concerned with natural resources and coastal environments devoted time outside of their normal employment responsibilities to draft its various chapters. It has been a privilege to work with these dedicated colleagues in editing the present version. William J. Lindberg William Seaman, Jr. June 2011 Maritime Industry and iii Guidelines & Management Practices for Artificial Reefs Coastal Construction Impacts June 2011 Southeast Florida Coral Reef Initiative Contents Contributors ........................................................................................................................ ii Acknowledgments ............................................................................................................. ii Preface .................................................................................................................................. iii Chapter 1. Introduction ..................................................................................................... 1 1.1 Rationale, Purpose and Readership of the Document ................................. 4 1.2 Artificial Reefs in an Environmental Context ............................................... 8 1.3 Artificial Reefs in a Resource Planning Context ........................................... 9 1.4 Best Management Practices and Acceptable or Customary Management Practices Concerning Artificial Reefs ............................................................. 12 1.5 Contact Information .......................................................................................... 13 Chapter 2. Environmental and Management Context for Artificial Reefs in Southeast Florida ............................................................................................ 14 2.1 What Constitutes an Artificial Reef? ............................................................... 14 2.2 Fisheries and Artificial Reefs in Southeast Florida: Status, Trends, Historical Issues ....................................................................................................... 15 2.2.1 Artificial Reefs in Florida ............................................................................ 15 2.2.2 Artificial Reef Trends in Southeast Florida ......................................... 16 2.2.3 Historical Lessons Learned .................................................................... 18 2.2.4 Socioeconomic Aspects of Artificial Reefs ........................................... 18 2.2.5 Overview of Southeast Florida Offshore Reef Habitats and Fisheries ............................................................................................. 21 2.3 Ecological Functions of Artificial Reefs in the Fishery ..................................... 23 2.3.1 Reproductive and Life-History Functions ............................................... 23 2.3.2 Trophic Functions: Who Eats Whom ........................................................ 24 2.3.3 Refuge Functions .......................................................................................... 25 2.3.4 Interaction and Tradeoffs between Habitat Functions of Food and Shelter ............................................................................................ 27 2.3.5 Behavioral Stimuli ................................................................................... 28 2.3.6 Hydrodynamic Effects ........................................................................... 28 2.4 Fisheries Management Issues and Considerations ....................................... 29 2.4.1 Production Considerations: Ecological and Economic ......................... 30 2.4.2 Spatial Considerations ............................................................................ 32 2.4.3 Fishery Dynamics Considerations ....................................................... 32 2.5 Artificial Reef Research Questions .................................................................. 33 Chapter 3. Administrative Responsibilities, Risk Management Concerns and Funding ..................................................................................................... 38 3.1 Elements of Program Success and Viability .................................................. 38 3.1.1 Artificial Reef Committee ...................................................................... 38 Maritime Industry and iv Guidelines
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