Jeff Kline Everglades National Park South Florida …...Everglades National Park South Florida...
Transcript of Jeff Kline Everglades National Park South Florida …...Everglades National Park South Florida...
Everglades National Park Freshwater Aquatics Monitoring
Jeff Kline
Everglades National Park
South Florida Natural Resources Center
• Preserve flora and fauna in a natural state. (1934 Everglades Establishment Act)
• Maintain natural abundance, diversity, and ecological integrity of native plants and animals.
(1989 Everglades National Park Expansion Act)
Invasive Species Programs
Everglades National Park’s
Mandates:
Invasive Species Programs
Timeline of introduced fishes entering ENP
Sta
ge
(ft
)
1
2
3
4
5
6 L-31W canal stage
Year
1981 1983 1985 1987 1989 1991 1993 1995 1997 1999 2001 2003 2005 2007 2009
No
. o
f in
tro
du
ce
d s
pe
cie
s
2
4
6
8
10
12
14
16
Water management
change begins
late 1999
Canal bank elevation
1960-1980Black acara
Walking catfish
Blue tilapia
Mayan cichlid
Peacock bass
Mozambique tilapia
Jaguar guapote & African jewelfish
Brown hoplo
Sailfin catfish
& Banded cichlid
Pike killifish
Oscar
Spotted tilapia
Spotfinned spinyeel
Canal overflow into marsh
Asian swamp eel
• Generally species lists
• 16 species of non-native fish
• Pomacea insularum and P. diffusa-2005
• Misc other aquatic invertebrates
Priority Animal Species
• Priority Animals
– The most recent introductions
– Most abundant
– And those not in ENP yet!
• Newly Detected Animal Species
– Vermiculated Sailfin Catfish (Pterygoplichthys disjunctivus)
Image by Windser Aguirre
Fiscal Year Treatments: Cold weather 2010
Monitoring • Fish monitoring
– Park-wide sample-Annually – Monthly Rocky Glades – Long-term monitoring – Other monitoring efforts-
Cooperators – Misc observations
• Non-native apple snail
– Pomacea insularum • Old Tamiami Canal survey
every 8-10 days • May 2005-April 2010 • May 2010-Once per month
– P. diffusa at Frog City – Annual survey of border canals
Monitoring: Misc observations
Monitoring: Temperature stations
Monitoring
Peacock bass-15 oC
Oscar-12.9 oC
Jaguar guapote-12.0 oC
Spotted tilapia-11.2 oC
Walking catfish-9.8 oC
Pike killifish-9.7 oC
African jewelfish-9.5 oC
Mayan cichlid-9.0 oC
Sailfin catfish-9.0 oC
Black acara-8.9 oC
Asian swamp eel-8.0 oC
Blue tilapia-6.2 oC
Brown hoplo-5.7 oC
Date
Wa
ter
tem
pera
ture
(oC
)
0
2
4
6
8
10
12
14
16
18
20
22
24 OT bottom
P35 Surface
P36 bottom
NP206 bottom
L31W bottom
1/1/
2010
1/2/
2010
1/3/
2010
1/4/
2010
1/5/
2010
1/6/
2010
1/7/
2010
1/8/
2010
1/9/
2010
1/10
/201
0
1/11
/201
0
1/12
/201
0
1/13
/201
0
1/14
/201
0
1/15
/201
0
Monitoring: Misc observations Rotala rotundifolia
“Uncertain if it will spread from the canal to other areas…but anywhere you see Bacopa, you could expect it to establish”
L-29 Canal
S-334
S-333
Monitoring
Island apple snail
Pomacea insularum
2008 L-29 Canal
S-334
S-333
Monitoring
2009 L-29 Canal
S-334
S-333
Island apple snail
Pomacea insularum
Monitoring
2010 L-29 Canal
S-334
S-333
2010 L-29 Canal
S-334
S-333
Island apple snail
Pomacea insularum
P.insularum egg masses
Marsh survey points (no eggs)
Canals
ENP boundary
L-29 Canal S-333 S-334
Needs & Gaps
• Prevention is key with fish and aquatic inverts!
• Non-native species must be considered when designing water management changes
– Non-native species are “bio-pollution”.
– Study alternative ways of delivering water without delivering non-native species.
– Restore unnatural habitats
• How do we work better with external management agencies with different mandates and objectives to meet our mandates?
Questions?