spawning aggregations and migration patterns of mutton snapper · spawning aggregations and...
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Spawning Aggregations and Migration Patterns of Mutton Snapper Dry Tortugas Florida
M. Feeley, A. Acosta,
T. Switzer, J. Hunt,
P. Barbera, D. Morley, M. Burton & M. Patterson
Photo credit: C. Parsons
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Marine Protected Areas
• Biodiversity
• Ecosystem function
• Fisheries
Settlement
Spawning
Nursery
Feeding
Connectivity/Reserves
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Key WestDry Tortugas
Aggregation sitesSnapper species
(Lindeman et al., 1999; Schmidt et al., 1999)
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Florida Keys National Marine Sanctuary
Dry Tortugas National Park
Riley’s Hump
TSER
TNER
RNADRTO
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DRTO
TNER
TSER
Florida Keys National Marine Sanctuary
Dry Tortugas National Park
Riley’s Hump
RNA
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Acoustic Tagging
Mutton snapper (54)TSER (28) DRTO/RNA (26)
TL = 62.8 cm
15 tracking
Photo credit: C. Parsons VemcoV16 transmitters
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Dry Tortugas
Tortugas Bank
Riley’s Hump
Pulaski Shoal
Loggerhead Key
Garden Key
SOUTH
WES
T CHANNEL
SOU
THWEST CHAN
NEL
45 kms
30 kms
Tagging sites
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TL 64.5 cm (2177)5/30/08 tagged
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MigrationDepart: 7/5/09 5:06:35 to travel reef26:00:21 to migrate to RH
7 days at RH
Return: 7/13/097:28:17 to travel reef27:00:28 to migrate from RH
Sustained swimming~ 1.15 km/hr (0.63 BL/sec)
64.5 TL home(2177)
Full Moon 7/7/09
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RILEY‘S
HUMp
Credit: USF; Burton et al.
0.49
0.01
0.13
0.13
0.008
0.21
0.03
0.002
0.000
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Riley’s HumpMutton snapper
Aggregations
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Fish SpawningAggregations (FSAs)
Credit: C. Parsons
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Lutjanus analis
Conclusions
Photo credit: C. Parsons
• Marine reserve network• TSER established 2001• RNA established 2007
• Species capacity to rebound• Burton et al. 2005• Spawning documented 2009• Population indices?
• Connectivity patterns: betterunderstanding.
• Population w/in DRTO/RNA & FSA site w/in TSER
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Thanks!
FWC/FIM National Park Service
USGS NOAA Fisheries - Beaufort, NC
NOAA Fisheries – Miami, FLMote Marine Laboratory
M/V SPREEM/V Ft. Jefferson
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• Acoustic tagging TSER funded in 2010.
• Expand efforts on black grouper.
• Continue tracking through 2011.
• Other RH FSA sites….Yellowtail? Gray? Cubera? Dog? Deeper habitat?
• Migratory ability of reef fish?
Future Work
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Marquesas
Rebecca Shoals
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Marquesas
Rebecca Shoals