! lrrrrli J. Agric. (Spccial Issuc) Vol. ? No. Llztn. tL002

E. H. AIi E. K. Abbas

-..18- Marrgalo, I{. H.; A. A. AI-Larni and Il. K.Abbas (199?). Seasonalvariati.rr of zooprarrkton popuratiorr in eadisia r"L. i,ri-iii ,*ri- rraq, l-l(otitbrn. Al_Mustansiriyah J. Sci., 9(3): l5_20.l9- Pcrrnak, li..w. (r953). Freshrvatei invcrtcbiatei of United statcs. 2nd

ed. John-Wiley & Sons, Ncw york.20- Pontiu, R. M. (1973). A key to freshrvater plankton and semi_planktonic rotifera of trrc Ilritish Isrcs. Frcstrrvat.. riutogi-"ur

Association Sci. I,ubl. No. 3g.2l- sabri, A.w.; A. s. Mahr,outr ancr Il. K. M:rulootr (19g9). A srutrv.rrthc cl:rtroccra oI rrrc rivcr'figris. Arab Grrrf. ,r. si.i. rtcs., z tsr,izi'-183.22- Sabri, A.W.; Z. H. Ali ; S. F. Sharvkat ; L. A. Thejar ; T. l. Kassim,and K. A. Ilasheed (1993). Zooplankton popuiation in the riveil

- Tigris: tr,ffects of Santarra Inrpountlnrent, ti.g. Riro., S,ZiZ_rsb. -"

23- Stcwart, L. J. and D. G. Georgc (f9S7). En;ironnrentnl facio.siuflucucing trrc verticar r,igration of planktonic .otir".r'lii-,hypercutrophic tarn. IIyd robi,ologia, 147 :203 _20g.

VERTICAL DISTRJBUTION OF ZOOPLANKTONCOMMUNITY IN HABBANIYA LAKE

F. Sh. Muften A. A. Al-Lami

ABSTRACTThe vertical distriburtion of zooplankton comnrunit5r was stutlictl

seasonally in Habbaniya lake for the period from winter tgis to summer1997 at five depths among the water column at mid lake (0,1,3,5 and l0m).Sixty five taxa were identified during the present study, 42 taxa fromthem belonged to rotifera, 12 taxa to cradocera and rl taia to copepoda.llotifera density more than othcr two groups in all depths especia[y atdcpths 3-10 m, it bloonred truring winter antt spring. sorne rotifers gen-erarepresented by many species thcsc were Brachiottus, Keiale a,cephalodello and rrichocerca. Thc most tro.rinant species was potyarthridoliclpt:ro which prescnt in nraxintal density tluring the study period, itrcachcd to l92l ind. /l in sumnrar at dcpflrs 3-10 m, Diaplionosonnbrachyurum ao.d Bosntina rongirostris being the abundant specics wiflrincladoccra. Copcpoda conr;rrisctl two growth pcaks, thc nrajor once atspring end thc other at summar, as with rotifera and cladocera, copepodaprefcr to exist in 3-10 nr depth arnong the water column of Habbaniyalake.

- Larval stages consist the major density of copepoda, Diaptoniusfrancisconus is thc dominant spccics within this group.

Officc Agric. and IJio. Rcs. - I,. O. Box 765 Al- Turvaitha - Baghdatl, Iraq.

\oi

r..Y/Ugl nit' l -rJ, V rl-. \.r,v tJ, ) ijtr,Jr ;rr)ir i.tJ

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.dty't ( )lr+ ;,.!? - qll aJ'-.!:-+r.t* i-. iru-i.1 ,,.!c nbs pwi r c.J rr)rr* 9!1' r e -t* \p) lrri r ir.olr !,,J& , $.xJr -2a+Jr ,rl_-4t :f* . if;: .r',Jc _rU_JlLlJjJ ijly't cJuJrAr L}J,=, i*Jr sr;Ur . (y . . ,)

.\ t-or:(t) r . i,lxJl i=4.::i1j

3- Achefors, I{. (1969). Seasonal antl vertical distribrrtion of thczooplankton in the Asko area (North Baltic proper) in relation tohydrographical conditions.Oikos, 20:4g0-492.

-

4- Al-Lami, A. A. ; H. H. Mangato and E. K.Abbas (1999). Seasonalvariation of zooplankton population in eadisia lake north west

_ !.uq. Il-Cladocera. AI-Mustansiriyah J. Sci., l0(Z):27-36.5- Al-Lami, A. A. ; H. H. Mangalo ; T. A. Abdui-kareem antl E. K.lbbas (1999). Zooplankton occurrence in Euphrates river_Iraq, I-Rotifer. Sci. J. Iraqi Atomic Energy Commission, l;74-92.6- Al-Lami, A. A.; T. I. Kassim ; F. S. Muften and A. A. Al-Dytymei(1998). An ecological study on Habbaniya reservoir. J. Coil. Educ.for Women, Univ. Baghdad, 1: (2).4-10.

'

7- Al-Hamed, M. L. (f960). Limnotogical investigation on Dukanrescrvoir. Bull. Nat. I{ist. Res, Centre Baghdad, Z(l):91-109.8- Al-Saadi, H. A.; A. A. Al-Lami and A. A. Al-Delymi (ZOOI). physico_chemical characters along the water column- in Habbaniya lake,Iraq. Ibn Al-Haithem J. Pure and Appl. Sci. ( accepted). '

9- Al-Saboonchi, A. A. ; N. A. Barak-and A. M. Ii[ohimed (1986).Zooplankton of Garmma marshes, Iraq. J. Biol. Sci. Res., l7(t1:35-40.

l0- Chatterji, A.; A. A.Ansari ; J. K. Mishra ; p. Rattan and A. II.Parulekar (1995).Occu rrence of Diophottosomn excisum (Sars) ona

_ -sundy beach at Balramgari (Orissa), India. Hydrobiologia,310:157-161.

11- Edmondson, W. T. (1959). Freshwatcr Biotogy. 2nd. Ed. Wiley. NewYork.

t2-

l3-

t4-

l5-

Ga-lkovskaja, G. A. (1987). Planktonic rotifers and tenrperature.Hydrobiologia, I 47 :307 -317.

Green, J.. (1976).Changes in the zooplankton of lake Mutanda,Bunyanyi and Mulehe(Ugnnda). Freshwater Biol., 6:433-436.

Ilofmann, W. (1987). Poprrlation dynamics of hypolimnetic Rotifers- in thu Pluss-Scc (North Germany). Hydrobiologia, 147: lg7-201.

Kassinr, T. I.; II. I{. Mangalo and T. K.Abdul-Kareem (1999).Seasonal variation of zooplankton population in eaCilhga lake,north rvcst Iraq. IIL Copepoda. Al-Mustansiriyah J. Sci., l0(3): 30-39.

Mallin, M. A. (1989). Pclagic antl near-shore plankton communitiesofnorth Carolina coastal plain rcservoir. Brimleyan, l5:87-101.

Mnngnlo, II. II. and M. M.Akbar (1988). Comparative strrtty of trvopoprrlation of clarlocerrns in the Tigris nnd Diynll rivcrs atIlaglrda<I. .I. Iliol. Sci. llcs., 19:ll7-129.

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