012 Florida Scientist

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Dec 25, 1983 - senting 15 Jamilies were found stressed or dead in the 19,q,?Jreeze and nine ..... dead in the Canaveral. Barge Canal several days following.
012

NASA-CR-204032

Florida Scientist QUARTER_ DEAN

JOURNAL

E MARTIN,

Volume

OF

FLORIDA

Editor

Winter,

EFFECTS JANUARY SEI.,ECT SPECIES

ACADEMY

BARBA_

49

ON

THE

B. MAnTiN,

AQUATIC OF

MARK J. PROVANCllA,

POIKII

MERRITT

SCIENCES

AssociateEditor

1986

Number

OF Tt IE I)I_CI']MBI£1/ 198,5 FREEZING

OF

1983

ANI)

AIR TEMPERATURES _OTI tI£RMS ISLAND,

AND

PAUL A. ScHr, tM,ZER AND CAI1LTON

Reprinted from Florida Scientist Vol. 49, No. 4, Winter,

1986

PLANT

FLORII)A

I;_. It;,LL

4

Biological

Sciences

EFFECTS ON

OF TIlE

I)ECEMBEI1

1983

AND

JANUARY 1985 FREEZING AIR TEMPERATURES SELECT AQUATIC POIKILOTtlERMS AND PLANT SPECIES OF MERRITT ISLAND, FLORII)A

J.

MARK

PROVANCItA,

PAUL A. SCIIMALZER

Tile Bionetics Corporati_m,

AND CARLTON

R. HALL

Mail Code BlO-2, John E Kennedy Space Center. FI, 328.99

ABSTRACT:Freezing air temperatures durinR the periods 25-26 December 1983 and 20-23 January 1985 resulted in hypofhermal stress and mortality of several aquatic poiklh_therms in the upper Indian River lagoon system, Brevard County. Florida. Twenty-three species offish representing 15 Jamilies were found stressed or dead in the 19,q,?Jreeze and nine species representing 8 families were observed in the 1985 .freeze. One ]umdred and .fifty-two sea turtles were rescued Jrom lagoonal waters in January 1985 oJ which 145 were Chelonhl mvdas (green turtle), and 7 were adult Caretta car('|la (Atlantic loggerhead). Numerous imli_enous plant species oJ tropieal and subtropical origin were extensir.elt.i dama_r'd. These inclmh'd .,\vicemfia _erminans. l,agmwularia racemosa, and l/hizoph_.'a mangle. Exotic plant species sm'h as Schinlts lert'lfinflfifolius. Casuarina equisetifolia, and Mefaleuca q,finquenervia were also damat_ed. yearly

CONSECUTIVE

and

mortality

stantial

just

aquatic

to

numerous

damage

dented

for the

past

central

midnight,

of central

reached

January

1985,

--6.6°C.

another

on

describing coast rey

those

and and

1964).

the

The

Ehrhart, the

cold

for

the

west

County cold

adversely

the

affected

Ehrhart,

in the

University

1871

stated

and

of 1962

that 1917,

Bradley indicated 1957-58 cold

of Central

wave Flori