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Barrie Creeks, Lovers Creek, and Hewitt's Creek Subwatershed Plan

Barrie Creeks, Lovers Creek, and Hewitt's Creek Subwatershed Plan

Barrie Creeks, Lovers Creek, and Hewitt's Creek Subwatershed Plan

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4.5.1 Protection <strong>and</strong> policy 201<br />

4.5.2 Restoration <strong>and</strong> remediation 203<br />

4.5.3 Science <strong>and</strong> research 203<br />

4.6 MANAGEMENT GAPS AND RECOMMENDATIONS 204<br />

4.6.1 Water Dem<strong>and</strong> 204<br />

4.6.2 Ecological Flows 204<br />

4.6.3 Reducing Impact of L<strong>and</strong> Use – groundwater recharge <strong>and</strong> discharge 205<br />

4.6.4 Climate Change 206<br />

5 AQUATIC NATURAL HERITAGE 207<br />

5.1 INTRODUCTION 207<br />

5.2 CURRENT STATUS 207<br />

5.2.1 Overview of aquatic communities – Tributaries 208<br />

5.2.2 Overview of aquatic communities – Lake Nearshore 220<br />

5.2.3 Rare <strong>and</strong> Endangered Species 224<br />

5.3 FACTORS IMPACTING STATUS - STRESSORS 225<br />

5.3.1 <strong>Barrie</strong>rs 225<br />

5.3.2 Bank hardening <strong>and</strong> channelization 227<br />

5.3.3 Enclosures 229<br />

5.3.4 Flow diversion 229<br />

5.3.5 Uncontrolled stormwater <strong>and</strong> impervious surfaces 229<br />

5.3.6 Municipal drains 231<br />

5.3.7 Loss of riparian vegetation 233<br />

5.3.8 Water quality <strong>and</strong> thermal degradation 233<br />

5.3.9 Loss of wetl<strong>and</strong>s 235<br />

5.3.10 Invasive species 235<br />

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