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SFWMD Contract No. C-15967-WO04-06 |
Freshwater Flow and Ecological Relationships in Biscayne Bay |
Page No. |
EXECUTIVE SUMMARY ES-1 |
SECTION 1 – INTRODUCTION 1-1 |
PROJECT BACKGROUND 1-1 |
PURPOSE AND SCOPE 1-2 |
RELATIONSHIPS OF SALINITY, ECOSYSTEMS AND POTENTIAL |
HARM |
1-3 |
MFL WORK IN OTHER FLORIDA ESTUARINE SYSTEMS 1-4 |
SECTION 2 – BISCAYNE BAY CHARACTERISTICS 2-1 |
PROJECT BOUNDARIES AND SUB-REGIONS 2-1 |
FRESHWATER FLOWS AND SALINITY CONDITIONS 2-11 |
EXISTING SPECIES/ECOLOGICAL CONDITIONS 2-13 |
Snake Creek/Oleta River 2-14 |
Northern Biscayne Bay 2-15 |
Miami River/Government Cut 2-17 |
Central Biscayne Bay 2-19 |
South-Central Biscayne Bay 2-20 |
Southern Biscayne Bay 2-23 |
SECTION 3 – SUMMARY OF PROJECT TASKS 3-1 |
TASK 2 - LITERATURE AND DATA REVIEW 3-1 |
TASK 3 – INTERVIEWS WITH EXPERTS 3-2 |
TASK 4 - ALTERNATIVE MFL APPROACHES 3-3 |
SECTION 4 – VALUED ECOSYSTEM COMPONENTS AND |
CURRENT IMPACTS |
4-1 |
HABITATS 4-1 |
Mangrove forests 4-1 |
Tidal marshes 4-1 |
Seagrass meadow and macroalgae 4-2 |
Oyster bars 4-3 |
Hardbottom 4-4 |
Table of Contents |
Freshwater Flow and Ecological Relationships in Biscayne Bay ii |
Softbottom 4-5 |
POTENTIAL INDICATOR SPECIES 4-5 |
Micro-organisms 4-5 |
Foraminifera 4-5 |
Phytoplankton 4-7 |
Diatoms 4-7 |
Listed Species 4-8 |
American Crocodile 4-12 |
Roseate Spoonbill 4-14 |
West Indian Manatee 4-18 |
Johnson’s Seagrass 4-30 |
Oysters 4-32 |
Crustaceans 4-33 |
Fish 4-39 |
Seagrass 4-41 |
SALINITY TOLERANCES, PREFERRED HABITATS AND LIFE |
CYCLES OF POTENTIAL INDICATOR SPECIES OR SUITES OF |
SPECIES |
4-42 |
SECTION 5 – POTENTIAL ALTERNATIVE APPROACHES FOR |
MFL DEVELOPMENT FOR BISCAYNE BAY |
5-1 |
STATIC AND DYNAMIC HABITATS 5-1 |
VALUED ECOSYSTEM COMPONENTS 5-8 |
INDICATOR SPECIES 5-9 |
PRE-DEVELOPMENT SCENARIOS 5-12 |
ECOLOGICAL PRESERVATION OR STATUS QUO 5-13 |
REQUIREMENTS FOR PREFERRED FISH COMMUNITIES 5-13 |
COMMUNITY INDICES 5-14 |
FOOD WEB SUPPORT 5-14 |
SOILS 5-14 |
EVALUATION OF ALTERNATIVE APPROACHES 5-15 |
SECTION 6 – RECOMMENDED APPROACHES 6-1 |
SNAKE CREEK/OLETA RIVER 6-3 |
NORTHERN BISCAYNE BAY 6-3 |
MIAMI RIVER/GOVERNMENT CUT 6-4 |
CENTRAL BISCAYNE BAY 6-5 |
SOUTH-CENTRAL BISCAYNE BAY 6-6 |
SOUTHERN BISCAYNE BAY 6-7 |
Table of Contents |
Freshwater Flow and Ecological Relationships in Biscayne Bay iii |
SECTION 7 – INFORMATION DEFICIENCIES AND NEEDS 7-1 |
REFERENCES REF-1 |
FIGURES DESCRIPTION |
1 General Location Map showing Sub-regions 2-2 |
2 Snake Creek/Oleta River Sub-region 2-4 |
3 Northern Biscayne Bay Sub-region 2-5 |
4 Miami River/Government Cut Sub-region 2-6 |
5 Central Biscayne Bay Sub-region 2-7 |
6 South-Central Biscayne Bay Sub-region 2-8 |
7 Southern Biscayne Bay Sub-region 2-9 |
8 Halophila johnsonii Critical Habitat 2-16 |
9 Boundaries of Biscayne National Park and Biscayne |
Bay Aquatic Preserve |
2-21 |
10 Crocodylus acutus Critical Habitat 2-24 |
11 Crocodile Sightings and Captures in Biscayne Bay 4-15 |
12 Crocodile Sightings in Relation to Salinity 4-16 |
13 a-c Manatee Sightings in Biscayne Bay 4-21 thru |
4-23 |
14 a-b-c-d Essential Manatee Habitat Areas 4-24 thru |
4-27 |
15 Stationary and dynamic habitat components from |
Browder and Moore (1981) |
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