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HomeMy WebLinkAboutQuantitative and Qualitative Tidal Wetlands Losses in the Peconic Bays Q uantitative and Qualitative Tidal Wetlands Losses In the Peco n i c Bays t`4 --* ,t 1. K dj tv- 4 KK I kl )� TM al Wetlands Pro2ram ist®r� 1973 Tidal Wetlands Act (Article 25)- Protect and Preserve Tidal Wetlands and their values 1974 Tidal Wetland Inventory- Identify and Classify all Tidal Wetlands in the Marine District. IM (17,499 acres); ISM (10,413 acres); FSI (839 acres). 1977 Tidal Wetlands Land Use Regulations (Part 66 1 ) Become Effective- Regulate all types of activities within 150 ft (NYC), 300ft Nassau/Suffolk and Westchester from the Tidal Wetlands boundary 1989 Tidal Wetlands Re-Inventory — Evaluate effectiveness of tidal wetlands regulatory program and conduct a trends analysis. "MIMI ' '.�'�`s ,�^a+: - ¢,,ax�i� •� •m.s; :�', o t°, _ y. �'k. d¢. 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'�!�w�•�--.»..��'" ;,r- ',.,�' ,?_'.. ,k' :o,��_s;�•v...µ�'�_ 1 1974 Expedited trends of marshes exhibiting loss 7v 199"- 004 $ o 44 s S 3� Fresh 1S f Pond 0 Flax Mount ��� �,. �. �.• Pond Sinai Harbor Nissequogue _ .. Fr.... fi o River �:.,:..,5.....;:.,.t,il.:. . a _ „a A`SY. h �r,� :.fir z'F` Y-`/ _ %;�^�•" _ G�,=:°W"s":`. Manhasset ,ro5>� _ t _ `: "lt.t�' :.i'�f.t�:,�-�^N '.A }•�i�'.nom`»5 - k' 9)s Bay Y Stony Brook Crab :..;..: f' Harbor ,; Meadow : -,r. F= South - =r, East Oyster Bay �t:.,yr, ° ;+ Bay Middle Jamaica Bay Gil o kt c 1974 - g Yep 600 1999-2002 Ba :3 `, ' :-:; Islands Bay }'- a 400 s - •��-.` 200 z =; 9 brti Fire Island ° Jamaica Gilgo Is. Goose West 1s. East Inlet Bay N 1s. say Inlet to In W E 20 a 20 40 Miles S v r {,� • Article 25 Ty=pical 14 ' rsh Profile is== 300' 5Lprm —aO_rngu, Iic!e (sj2rjQgJjd J — — — — — — — —— — AA Adjacent Area mhw (mean high —water) _ HM - - - - High Marsh ���j•+ Landward edge Spartine patens. Salicornin sp, J Baccharis hatirnifolia (meadow grass) (saltwort) I_y jmean Igwygt rJ (,groundsel bush) Disti.hli5 spicatfl I M ,, Iva frutescens (spike grass) (marsh elder) tow vigor _a.olterniflo Intertidal Marsh Lim s =hnianum Spartina altermflora (seaside lavender) (low marsh cordgrass) Junes gff (black grass) � SANS � LZ SGtruS Coastal shoals Littoral Zone (ehairmaker's rush) bars and flats (unvegetated) Phragmites W, (unvegetat.ed) `(`&amftion reed) Hub d Creek eastern portion 197 002 1974 — 95.48 acres 2002 — 88.22 acres 7.26 acre loss: 7.6% loss in 28 years - .'. rate 0.25 acres/year i . a t. �} t,t S , +�'! l�'� tw5 ;�'. b 3Y. ,.� �A1 "�A � d 4 f•�'vt 9 s� ?t`r1 y� ,t 't° s*k' .iNJ p�ji¢,.�;• Y" L, �' ,n �� .r:. �c;y.',;. k -a • .x. �" �x`•e'iJt'AS ss+' n;: { -� -�. { •e Ai � �'fit =�^�3;,N�_ . - ' •,`� �' ' y�; - K `S , • v �Y �= Fn�4 a ��, � '1♦ ^��4 ,{ ?R' .gam Hubbard Creek, Island Marsh Loss - - ., ''''� ww,�:�..:.,.�✓;��2r�;�,�"""�'.,�>;1 a�r�rr. �.s�'�',..,,�,'. 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F'� .x. �yf ,°� x; t �"��i1k� '%. 1 '�{{,*,`� �v+��;�l7 et•, ttAll { u �• ' 'Poor ., s ' r 11 • r r 11 � 1 � ' . . • ' � • 1 74 7, �� O ZZL - .. - } ` � �� �'Cs•.yap ee����?''�a y ! �M,. 1 _. aTX T t Vt M 5 Cedar Beach �r "t' 1974 Tidal Wetland inventory CIR tt *, 'J• ,� ''}�Srrly� ("' yf'�T'iV.� .s 7 Y4 .',4. „n.X PP .�b'::r"oJ§"F Y •Ib,4}t'f('�F, � v�U � r� i ;.3ti 2002 NYS true color SAV aerial � ""Elss, 34 �!^.+.ga''�y'k.:w. syn "�`a`• / P`y11�,',++kS 1 �1 ,H�} '� ''t'�i'n.�`b�y�Y � ��,';�. 'k �> vy,�7 "$•Yt' vt h�v c :x�'»,zs r-.gam 2"r �fi.KXc =�$'= •r'' 'S - [ `Y�"Xau` { '��' G•1n'pri.}` .,: e'.�!w,Y'M. 7? 3' ,i.',t+`" -•�,F A `�t,'may+.T y. u $•c"� •z �"•'ait+�`•'r..'GI.��{.'n`savM' a Y tO ;C�;,,A .��' tr'i��� vr'�.,rr�•_,';y�`'',�'C-��✓,u•�^*��.y;.;�;,t,n.• 1 ::31� X - ?'"', •£.J',a,-,.: :'kr .�'•. -u s ;r. '.t _{ i�A!'ice may. ,���'',�, „+, a r,, 77�r•i•. ,;2' i ?���:?,��us.'',�. ,. t+v^`."'"y'•,�r�'^ i-:�•- �. ,•'r^n -i r `�N ,F.}f�7�';Pr's• yk:."a' ,r.;-Z-, h :•.ih `S "t`• 'LS� t.`. ,tee •£: h t" '`"� •�'9 'k+ n3ste'��'V'. u'N'.�•" '�`n i''`'Y"'`i•W' ' L"?' a,"•� .;.,n x" '. n" fir• ,.',N+, ;,ts S",,s': �,a°"id'.6`, ;�„ tr.., 'C, iw�*4� �a�;,._. .- ,`,,k� .,�.,t•, <r ,� " � � 1'�S' Ir'� I n . Cedar Beach Southold 1974 Tidal Wetlands 19.72 acres r,gE y+, 2002 Tidal Wetlands 11.16 acres -•,,u � , • ,l���s�,*���� �` 8.56 acres lost over 28 years Rate 0.3 acreslyear 43% loss Cedar Beach Marsh Island Loss ,Og �J, '2 v por 'Pi A 2 "F",ii:,,�, -,,-.—�, , " '71: zj`��,,��,'- I , K, "4,4 -7,7�1%tQ am NO 2 V7 Wa Rm ""o �X. 5 vi N 4 5t x, .. ........ 4 g X %M-�,­-A, 4a� 'A 4, k V A n! 4"Y C'N 2 nR. 6 ,�y�x 54 X,ffu"a `35A O'n �g' M D �'ie�, "AR R%, —W, uft �4" , — N*0, W T, A b�N 4VJ, Qft '91,Al�Awl,'. % Zv" W -n, 1".4 g, p" ,AM —1 1-6 A U Em W �'T V,.:�j4�-h-w T,� Ng oa L Z'I, VA. M J, NIV-C Y.A v lks, v �t,300 A", z 6- n 2t R; 'IR! 'A pv -'I, M, �P, Z� q y 'A' lb�' -V 14�;,�5v- 'p vi m M� M� t ,. l IT :f S J f 1 u5 3:32: y Grey Creek Tidal Wetland Trends 1974 - 2002 1974 Tidal Wetland Boundary 2002 Tidal Wetland Boundary Loss Statistics 1974 - 28.10 ac 2002 - 20.41 ac 7.75 ac lost excluding 3.32 acre gain in dredged spoil area. Rate 0.2 aclyr 27% total loss J� AFRI: ' •� M � A .�,t �vu�;� s,y,,.. � ��'��-•x,,,,; -' ',�. ''k,�t�•a�;�,q v ♦ 7 i SA * x 4� � ,.w, y, �i. sM,. 7'""' ',��,�•s# s _ r»"' � r ;K" .+`F'!`,r ' A" ,„ z __ �,' a k,.,ry. " t'^'S` 18 A tr ,5•,'rS r ,, r 't, ,s `•: " <¢� a, _'y - y.t ;,t S'P`•�4 •'_ ,tY L ..-t ,.. 4 T ,i,eSA,,,{,�is�,� � ..��,ry,. t ii'N Sit •"i r� .�`: - '"ik 3} ':'t �" •1] -ty5r 33� �''{*'�* •s o.+*"°'xr+5� +s' "J•, Atrw,, - - 'F�FRr'�'� ��r �"�:. 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YEA Aj �,1 21 ", ��a. •,� 'ht• J a psi ._. ,� ••` �. j.'- { 1.... '�r .{".' � +,�mid' ��..� ;. � �,�°.ir mei • far. ������ 1 1• � �"��•�} .. ""55"•t ii" �' y •"�� ��},f,.�'� ., irk y.� t f `� ..i� R �'^• � M: �� '� �1'r'��. � ". is • N .. �. . r t �F,, .fix` r. � .i+� ,�e.: ' +s �'�i"J.''�. '� y5� •� 3 k��'l. TJ 4911, T j "'std j� � ' ki e Orient Harbor Marsh "Oyster Ponds" MT - 'd�tlz i��v � 'X�}•+.e' "r `"� Fc:'�r�"•',a",,"'���5�= 'N��.:i` _ 1974 IR .(` .-t�� _ ��^47�vrv`rz�,A�A`: _Y..'.:'d:�..•.'-:'"'•(.V,F-�✓ �x:.5�.v^f ya=��x�...�_ `� J u+�,J �h�3,%F�,S .�w�^.iisr'. a��•,y,l^t,��5rls. �.; -.'9.-G...3' n � 4� ���?i5�'�aa„r lrr,�wwW^^+;;;.'���, 'm Yrij�;;;.,•.;?:'M1%.Vts,:''f� ��,... reN�i•-:pOt.::'x'”-:s k ! F°.'.Y'-::'.�.•s,A? _Q•y�,rv^F'6�'az�'�,"=i.R... ' •. _ ".:u,�.°�, }" :k'?.. 'tz•,:Zvi•;'f:. ,>N�,�i:,.iE":,;,:.,"`k,.i��." ' '�szt �7 i Wetland Losses 2002 TC `� e ` t Dickers®n Creek qualitative trends 1974 - 2005 NI ut .yi "�'F kmrS.4<`1.4rr�€e'y � 555A North Sea Harbor • ualitative trends 1974 - 20047 f � g'1b 4�ti�r j7�t F3' _;�.,�,.'fib� L �' •. � � . ,, � ' .. 7 ry 1 1�■q■ (`� �.3• c;a�,r� "vr'�k'':e3�b: hFmti�q Findings IJ '>a,>�a r1' „£ti•bi,'yk'ro' ,�, ,�' ri''• siw'n�'.a'.� ° »'4 a a,°, `�'��Y h`a s,�,S�`•r,,,."., ��, ,� y ",,.�k'",, :c�'�t•`<< �:�`��'1` y�''�Y'����,;w ry ,'(�'C4",ti�t•�'y'f�t�i�''""`;�r,��:�:"`,•� t;''rT ��,n^ ,, a Large wetland complexes (> 100 acres) ualit ° 44,, show perimeter loss of vegetated marsh Spartinaa It" Pf;`V ra�".�,-.a. id,r vegetative shifts to wetter species. Wetland islands appear to sustain greater loss than land based marshes and loss rate increases as wetland marshes fragment. _ With, the exception of Jamaica bay losses (44acres/year), Losses throughout the island in the marshes studied _are occurring at ' - �T,^^- „`Y^,Jlt_;�,,,t - =�� r^-moi v`..f:. - - .^ ,r•`t�y'r's' , acre/year To date no "smoking- un cause. or rm act has:.he , o n ' en' f und.Q,,,. ,Ea.cvt5. wetland complex seems to have a-unique"toss�-fingerprint; some are Basil speculated due rto ast im ,acts others, remain:. : y p p p ,.. _ putilug'. :E,.r , Bae -o cu en=t.:.tre =h� �a�srx���ti%d�i��-d.`�'�-�a-� 1 .5�=.�- - . s ,d� . , ids Tyo�f"t e;,�1�5:r�are -s, � �rox,3. 3=9 .d.�� r» •F t.` y�'A, F,[ 0," �A ��t' j,2 is ae es'�� -��: `®f-'S� :r�a to riflo� rd%'� yrs. es-'. ��a�ed� ee=n m ,eC :tz :.4 zz A"' Ao s i 's'�' tir `yv i ft}' t ati ft'^" That S"5'S `.t. �r^ an c4r rria`te ill` -ea uta ale t®;'t • PC - - i F+ <t mss:'' •�'3,='::' :-u'^4^ Fxr, vim. V 4• R11 r "C "St 111.:; OST" � x2 - ✓�F K� x�. .-tea; C r. :k: y�r""x r•taw;`^,`-°�:.';,,;''�-x.n..:,e-.. T.r:Y e.. :c,.:' .'v{r'.= Y%i•, ,v ti:G^ U5 =l3' ..r 0215'1, m t a �. x<- t.-s wY. �•fi`5r fi.- .ti l�z f Fe - SYS yy' ,�x•P r< s;'"'"_t- ^•Cie,„ t et: a _ >r tw d,^r rsd, ' 7 r.S =v,•. :rM -` xs"e�.�7..3:].,SE:'_:;.�..a.ars�is�,�:o¢: ',,:,>SS�e..�3r<N3.xi�^ :;��"s..'�3J:s:,:�'�a>.t`r".,2.<4rd:.xw�'�wTa`.a:S.S.�:',A.+;7; 's.c. �"a'� w:.P.�..'�.�:,^'�`.....�.'�`,eimi`�i ,:s°„a,.�..'"a .-'�,,..°cYr"�45a���5J.wm$i�'z``.eu� Ta�ie ., s Acreage of Coastal Wetlands Lost, Long Island, New Fork, 195 --196+ J. ' 954 Losses 1959 Losses 1964 Total Losses CLu t-. Acreage., 1924-f; Acreage 1959-64 Acreages 19L4-64 Lr onx 1,86o 1, 525 335 285 50 11810 . Yns 41235 310 3925 1,038 2,887 1,348 Kings 2,X00 275 2,125 985 1,14o 1,26o Nassau 14 i,3o 2,219 11;911 2.416 9,495 x+ 635 Su.ffOlk 20.z590 1 82 1 208 2 00 17, oo8 3,582 Totals 43;215 11 o 2 0 80 12 E� 5,7 .,7, 5 3 , 5 a 35 h +r:',•.,�"'��'�'�a'k;r 'j`n":'� .e.v j�,. n ,ar�rwrM<x��. .y y'Y _ Y-t' « x,....•'�' `roti ,'! ro 4.. ate•+ y �y q.;,�`y- - - - .sp �x#��c.- .. 1 e.t .w�, '��«��z'� :.�>lr,i "tom:^;fix- °��'',4,•.,,-.4",wr°,:A�«'�.,�5.';'��.r.o�iv'��,�,ri , ",_" `,w k,x:�£,r..,"l�_ .vh '� v,;a..m a,o .-,¢3 �: tn^ •' s,,. *N�;`��`+,z,, rh Wb w i , d ,, 'r`u+F a•; ^.�•<dei '«�a Y'� 'F• a.,3,a°,r.. ,, ,k° 4 - -�"' ,,.. .F> - e, �' ::;r, si7.:' ''� �x,.,�r�+Y. �, X'�.,s .,.�,- .Y_rsri•k « " ' :.rt,Ax;�{�,„' �vx` _ - r.4�x �,• •e-r., - .ay;. '� u ,gym .� �T l_.._ ,��,„ .,� Wer :r,» x... ,> :��4� `,� ,R.�.aS�,,,x..� _}��"N.v �y� � .,..�.`, .. .'� , -a'''.- ,- ,-( ',t, -. sir •Y,'�i 4� gip' K '+z-`""i-`F�'i�'Y ,a „r�°aan � �•J"�p,C'tr d`�. .w'�c, c—�....-. _..s ,^, .e � �' ,. 41 - Potential Factors Causing Loss Sediment Budget Disruption Ponding in and Wave Erosion Am Ice scraping, gouging , tearing and expansion ow Am Sea Level Rise Maintenance and non maintenance of man-made structures 41-:j 04- nIA'a�7" mv wm lau i0l tRU HW�:: t-$,,�4r+' za;+:,; MIT'— 51 OIN, P4 U-M M-N,"N 0,10-N Next Steps/Strategies Ah Obtain funding to complete LI Trends Analysis Ah Assess areas for TW loss Determine reasons for losses Ulm Develop management plans Become partners with towns, villages and local groups Alk low Begin remediation process DEC web site: www.dec.state.ny.us/website/dfwmr/marine/twloss.htmi - ^�4Y st wr. f: fn�vnq: ns� W"elYf btu J. 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