BURRARD INLET SHORELINE CHANGE – BASELINE ASSESSMENT

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BURRARD INLET SHORELINE CHANGE – BASELINE ASSESSMENT Final Report Glossary GLOSSARY Anthropogenic – effects, processes, objects, or materials derived from human activities, as opposed to those occurring in natural environments without human influences Backshore – the upper part of the active beach above the normal reach of the high water, but affected by large waves occurring during a high tide Basin – geographic designation of harbours and areas of Burrard Inlet Bedrock – a layer of solid, unweathered rock along the shoreline BIEAP – Burrard Inlet Environmental Action Program (BIEAP), an inter-governmental partnership established to coordinate environmental management of Burrard Inlet Biodiversity – the richness of life forms within a given ecosystem, region or the entire planet; often used as a measure of the health of biological systems Ecosystem – a natural unit consisting of all plants, animals and micro-organisms in an area functioning together with all the non-living physical factors of the environment Estuary – the wide part of the river where its current meets the ocean tides and fresh and salt water mix Foreshore – the part of a shore between high water and low water; includes the backshore exposed at maximum ebb spring tides Habitat – the place or environment where a plant or animal naturally or normally lives and grows, which provides food, water, shelter and space Intertidal – the zone of influence from the tide; a component of the foreshore, includes the part of a shore between the high tide mark and the low tide mark Riprap – a permanent, erosion-resistant foundation or wall of large, loose, angular stone with granular underlining. Usually erected in water or on shorelines or soft ground as a foundation Riparian – typically refers to habitat along streams, rivers and lakes; in the marine context, it refers to shoreline areas with overhanging trees and/or shrubs Substrate – sediment, sand, gravel, cobble, boulder or bedrock in the bottom of a water body Subtidal – below the low tide line; submerged virtually continuously Tidal flat – coastal wetlands formed when mud is deposited by tides or rivers; nearly flat area covered and uncovered by the alternating tides ii December 2009 Project No. 1056983
TABLE OF CONTENTS BURRARD INLET SHORELINE CHANGE – BASELINE ASSESSMENT Final Report Table of Contents 1 INTRODUCTION ....................................................................................................... 1 1.1 Background and Project Objectives............................................................... 1 1.2 Site Description.............................................................................................. 1 1.3 Data Sources ................................................................................................. 1 1.3.1 Shoreline Classification Study ........................................................ 1 1.3.2 Historical Analysis of Shoreline Change ......................................... 2 1.3.3 Habitat Inventory/Land Use Classification ...................................... 2 1.3.4 Field Verification and Ground-Truthing (2009)................................ 2 1.4 Geographic Coverage and Boundaries ......................................................... 3 2 BACKGROUND INFORMATION.............................................................................. 4 2.1 Shoreline Changes over Time (1930s vs. 2005) ........................................... 5 3 METHODS FOR GENERATING THE SHORELINE INDICATOR............................ 6 3.1 Habitat Classifications ................................................................................... 6 3.1.1 Intertidal Habitat.............................................................................. 6 3.1.2 Riparian Habitat .............................................................................. 8 3.2 Calculating Habitat Quantity and Quality ....................................................... 8 4 RESULTS AND DISCUSSION.................................................................................. 9 4.1 Linear Shoreline Habitat ................................................................................ 9 4.2 Area of Tidal Flats, Estuaries and Beaches................................................. 11 4.3 Area of Wharfs and Piers............................................................................. 12 4.4 Linear Extent of Riparian Habitat................................................................. 12 4.5 Invasive Species.......................................................................................... 14 4.6 Spawning Fish ............................................................................................. 14 4.7 Waterbirds ................................................................................................... 15 5 TRACKING SHORELINE CHANGE OVER TIME .................................................. 15 6 SUMMARY AND GENERAL RECOMMENDATIONS ............................................ 15 7 CAVEATS, UNCERTAINTIES AND LIMITATIONS ............................................... 16 8 CLOSURE............................................................................................................... 17 9 REFERENCES........................................................................................................ 19 December 2009 Project No. 1056983 iii
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BURRARD INLET SHORELINE CHANGE – BASELINE ASSESSMENT

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