Table Of Content

Aquatic Botany, 39 (1991) 389-390 Elsevier Science Publishers B.V., Amsterdam Contents of Aquatic Botany, Volume 39 VOL. 39 NOS 1-2 FEBRUARY 1991 Preface Growth, reproduction and resource allocation in halophytes R.L. Jefferies and T. Rudmik (Toronto, Ont., Canada ) Growth, water and ion relationships of halophytic monocotyledonae and dicotyledonae; a unified concept J. Rozema (Amsterdam, The Netherlands) Differentation within Aster tripolium L. from tidal and non-tidal habitats A.H.L. Huiskes, J. van Soelen and M.M. Markusse ( Yerseke, The Netherlands ) Effect of elevated atmospheric CO, on growth, photosynthesis and water relations of salt marsh grass species J. Rozema, F. Dorel, R. Janissen, G. Lenssen, R. Broekman (Amsterdam, The Netherlands), W. Arp and B.G. Drake (Edgewater, MD, U.S.A.) ............ccscscccssssccessreeeseeeeeees 45 Root adaptation to soil waterlogging W. Armstrong, S.H.F.W. Justin, P.M. Beckett and S. Lythe (Hull, Gt. Britain) 57 A convective through-flow of gases in Phragmites australis (Cav.) Trin. ex Steud. J. Armstrong and W. Armstrong (Hull, Gt. Britain) 75 Pressurized ventilation in wetland plants W. Grosse, HB. Biichel and: H: Diebel (Cologne; FRG, )s isiicds cacscceccccsccsccscessasriticrcceAsceetns 89 Transient pressure gradients in the lacunar system of the submerged macrophyte Egeria densa Planch. B.K. Sorrell (Auckland, New Zealand) Variation in growth rates of submerged rooted macrophytes S.L. Nielsen and K. Sand-Jensen (Hillered, Denmark ) Survival of aP otamogeton pectinatus L. population under various light conditions in a shallow eutrophic lake (Lake Veluwe ) in The Netherlands G.M. van Dijk and W. van Vierssen (Wageningen, The Netherlands )...............ccsesseeseeseeeeeeee Comparison ofl ife history’characters of broad-leaved species of the genus Potamogeton L. I. General characterization of morphology and reproductive strategies Gas, WRCTG ESc hine EBs inns CC Reber trea Bre Ce oss ini cn casa ces tanaiccndszcecneuncesssunasstncdassecedccstearacuedse & Interrelationships between Eichhornia crassipes (Mart.) Solms and Hydrocotyle umbellata L. M. Agamiand KR: Reddy €Giamesville Fis USA) ocssccccccecccescceotssiasceasscneiestactedsscanceceesdecsens In situ experiments on interrelationships between six brackish macrophyte species L. Kautsky (Stockholm, Sweden ) Principal determinants of aquatic macrophyte richness in northern European lakes B. Rorslett (Oslo, Norway ) Anatomy ofl eaves of submerged and emergent forms of Littorella uniflora (L.) Ascherson ©: ostiup ane Gs. Wieser CO Men bares Peter ioc. cise csscaccasenczccaccdescasssvexsesessaevssestessssacqusdiasarse Mechanisms for maintaining persistent populations of Myriophyllum variifolium J. Hooker in a fluctuating shallow Australian lake DE Fire CA nia es, INS we x AURSON MING) sissies Sad nccicasaseadudsee Gascdacosetsavadacctecedscsdeaabodas 2 The measurement ofc urrent velocities in macrophyte beds C. Machata-Wenninger and G.A. Janauer (Vienna, Austria) VOL. 39 NOS 3-4 MARCH 1991 A field study of the effects of water depth, order of emergence and flowering on the growth of Typha glauca shoots using the Richards model iE Waters and 9M. Shay (Winnipes, Man, CanaGa) 22cco csi otis cece Dol Some observations on the oxygen sensitivity and seasonal variations of the nitrogenase activity associated with excised soil—plant cores of Phragmites australis (Cav.) Trin. Papa US Cats BSTREAID) acess dss ss excess casazecnonscedovsivonaptoeeSanveveseceendscupeaiasansvisGesleade aoe Ammonium-stimulated potassium release from Lemna minor L. grown on a medium containing nitrate as N-source Beck nies CI Peer ACT SW ZEMAN) seis sic Sesvcsis ls casndaseccsebs oescsaunaecuees acbasiie crass Oobaaneetes 255 Inlet of alkaline river water into peaty lowlands: effects on water quality and Stratiotes aloides L. stands BAS: eciors CNigmeeen, Phe NECRERARGS ) oc. scccccccc. chs deepest nso so ete 267 Utilization and conservation of Euryale ferox Salisbury in Mithila (North Bihar), India V. Jha, A.N. Kargupta, R.K. Mishra, K.C. Saraswati (Darbhanga, India), R.N. Dutta and WE PIRES RECT TINUED) sci coss inc cos vosunkesoys ta ecestsoencg tis poets Sep yce WO acs TE 295 The effect of outdoor culture conditions on growth and epiphytes of Gracilaria conferta M: Friedlander and A. Ben-Amotz (Baila, IStQGl)ixc5o cscs casccencsscstecevseasconcdanceincateckevestsinvevestesees 315 Factors governing mercury accumulation in three species of marine macroalgae PS. FRRPEA CAI ICA DFO TAAL) ones oka den cope ee ceca ce ra use exes excuses cascboavsdeonen ve denterseantinseselastieeee OO Preliminary investigations into the background levels of various metals and boron in the aquatic liverwort Scapania uliginosa (Sw.) Dum. A. Samecka-Cymerman (Wroclaw, Poland), A.J. Kempers and P.L.E. Bodelier (RNS RRND TNS DU CIRC AINNS) ooo coc cans sn cca vo donsccscateecso vay a9 anseseass covctcesecs veatnnsatastcussuciaxtscastie 345 Assessment of environmental suitability for growth of Zostera marina L. (eelgrass) in San Francisco Bay R.C. Zimmerman, R.S. Alberte (Pacific Grove, CA, U.S.A. ), J.L. Reguzzoni, S. Wyllie- Echeveriia ang vi Josse1yn ( PIBUROD: AISA G ) ccsc a cczcssccstecpsk sasesescossnaccectacseseoteseoncsandooasace 35 Growth and development in culture of orthotropic rhizomes of Posidonia oceanica A. Meinesz, G. Caye, F. Loqués and H. Molenaar (Nice, France) .................0..sesscosssssssseossenes Book Reviews RNR ME a8 oot iad Ss ln ebuscees ss Saad Mau sky SUCUSU os GEE RSEns Renee REESE NRPLE Cane ESET ICTR MIA FAN RUN AD RAND NIE 5555.5 vax su ssa ssva ven Seneseat ests eacss eocean saeco terenaaw ete peaen oe oaeeaoces ants as Doe SeE Pee Se Pes he Se eC | ee eo enter Spann ea aie Ray Cae tin wy PR Se earn r amie Uren ee a mR RN NON cess dn cp sss ba tia cadences cxPecnen aveseee ee peta ed OR eet oe eens ee 2 RENNIE OE mNNnIIaE RCN: WIMNNNE DD sco scel seeansatcesccecks kes aati cua bases eras epee 389 NRT MN 205 dca oa cc asuicaauistedeieRecocn mes Posen vases 128 onl Teo WSEAS ARP ee ee 391