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RobertE.Hueter,Ph.D.

TheCenterforSharkResearch

MoteMarineLaboratory

Sarasota,Florida

TheodoreRooseveltConservationPartnershipSaltwaterMediaSummit

October18,

2012

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Capt. Mel Berman1929-2010

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Whatisthe#1thingyouhearscientistssay?

Weneedmorefunding!

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OKwhatisthe#2 thingyouhearscientistssay?

Weneedmoredata!

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Incompetence?

Worldsbiggestscamforjobsecurity?

Whyisthat?

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Whatis

science?

Systematic

process

of

acquiring

and

organizing

knowledge

to

explain

observationsofournaturalworld

Observations(data) Hypothesis Theory

Scienceisnot certainty,becauseofconfidencelimitsonouranalyses,or

complexitieswedontyetunderstand,orbecausethingsmayjustchange

Sometimesscientists

can

disagree

for

legitimate

reasons

Butsciencecanbepredictive,ifwehaveenoughdata,andthereinliesits

powerforfisheriesmanagement

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Whydo

we

need

long

term

databases

infisheryscience?

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Example1:

Blacktip sharkabundance

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Example1:

Blacktip sharkabundance

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Example1:

Blacktip sharkabundance

?

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Example1:

Blacktip sharkabundance

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Example1:

Blacktip sharkabundance

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Example1:

Blacktip sharkabundance

?

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Example1:

Blacktip sharkabundance

?

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Dahlgrenet

al.

2008.

Ecology

of

bonefish

during

the

transition

from

late

larvae

to

early

juveniles.

In

Ault

et

al.

(eds.)

BiologyandManagementoftheWorldTarponandBonefishFisheries.CRCPress,BocaRaton.

Example2:

Bonefishabundance

??

?

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DEEPWATER

HORI ZON

DEEPWATER

HORI ZON

PRIM ARY FISH SAMPLING AREAS

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0

50000

100000

150000

200000

250000

BiliaryFACs(ng

naphthalene/mgprotein

)

Biliaryconcentrationsofnaphthalenelike

metabolites

Lysozyme

0

2

4

6

8

10

12

Elasmobranch Teleost

Species

Lysozym

e

activity(ug/m

l) 02468

10121416

ERODactivity(pmol

resorufin/min/mg

protein)

CytochromeP4501A1activity

SOD

0

5

10

15

20

25

Elasmobranch Teleost

Species

SO

D

activity(

U

/m

L)

0.00

0.50

1.00

1.50

2.00

2.50

SI-003

DU-002Silky&duskyshark

bloodPAHs

Swordfish

bloodPAHs

Biomarkerlabassays

SHARKSHARK

BONY

FISHBONY

FISH

Baselines???

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Thefirstsatellitetagged

longfin mako shark

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Threemonthslater

in

the

mid

AtlanticoffVirginia

Onemonthlater,onthenorthcoastofCuba

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Lessonslearned

Shortsnapshotsinfisheriesbiologyareoflimitedvalue

Stopandstartprojectsduetoshorttermfundingcyclescanbe

almostcounterproductive

Wereallydoneedlongtermdata,andtherefore,funding

supportthat

is

stable

over

multiple

years

and

beyond

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Inconclusion