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presence may not be related to diminishing fresh |
water flows |
Additional restrictions to protect seagrasses |
are often highly controversial |
3 |
3 |
Slow 1 |
3 |
1 |
2 |
1 |
1 2 |
Public acceptance fairly high for seatrout |
and seagrasses |
2 |
1 2 |
Soil Characteristics |
Food Web Support 1 |
2 |
1 1 |
3 |
3 |
Requirement for preferred fish |
communities 5 |
Presence/Absence/Vitality |
of Preferred Habitats |
Ecological Preservation |
1 |
Historic mangrove shorelines would be |
recreated |
Valued Ecosystem Component |
(Seatrout, Manatees and Johnson's |
Seagrass and Manatee grass) |
Community Index |
Indicator Species |
(Seatrout & manatee grass) |
Pre-development Scenario |
STRENGTHS & Score |
(0 - no strengths, 5 = strong) |
WEAKNESSES & Score |
(0 = Very weak, 5 = few weaknesses) |
3 |
5 |
5 |
Would involve restoration of mangrove |
shorelines and seagrass habitats |
Recreational fishing is popular, but most fishers |
do not understand fish life cycles |
4 |
2 |
If salinities are correct for seatrout and |
manatee grass, conditions will be suitable |
for numerous other species |
1 |
SPEED OF |
ADAPTIVE MGMT |
(Slow (0), Medium (3) , Fast (5)) |
Would require more intensive |
monitoring of fish catches and seagrass |
mapping |
Pubic opposition to more detailed fishery |
monitoring |
Replacement of seawalls with mangroves |
not feasible |
Add'l restrictions to maintain current |
status would not likely receive public |
acceptance |
OPPORTUNITIES & Score |
(0 = creates numerous problems; |
5 = creates few problems) |
THREATS & Score |
(0 = large # of threats, 5= few) |
3 2 |
FEASIBILITY OF COST-EFFECTIVE |
PERFORMANCE STANDARDS |
(Very costly (0), Comparatively inexpensive (5) |
3 3 |
Reductions in indicator species may not |
be related to diminishing fresh water flows |
Yes - Some data already being |
compiled |
rev 11-14-03 |
Table E-3 |
Advantages and Disadvantages of Different MFL Approaches for Biscayne Bay |
Miami River - Government Cut Sub-region |
POTENTIAL APPROACHES APPROACH SCORE |
(Cumulative Total) |
Manatees have high public appeal |
Reasonably good existing database |
Somewhat easy to ID Significant Harm Critical habitat already designated Some data already being compiled |
A lot of scientific work already done |
Target population exceedingly small |
Difficulty in monitoring minimal changes |
Little public support likely Yes - Data already being compiled |
High levels of biodiversity |
Would prevent continued degradation Existing condition is in Significant Harm Yes - Data already being compiled |
Estuarine conditions currently absent |
Would maintain existing degraded condition |
Likely significant public opposition Significant public opposition likely |
Very expensive and long term |
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