ESTUARINE COASTAL AND SHELF SCIENCE
VOLUME. 49, NUMBERS.3, MARCH 1999

R.G. Billiones, M.L Tackx and M.H. Daro The Geometric Features, Shape Factors and Fractal
Dimensions of suspended particular Matter in the Scheldt Estuary (Belgium) 293


G.Godin The Propagation of Tides up Rivers With Special Considerations on the Upper
Saint Lawerence River 307

I.Yu. Sorokin ,p.yu. Sorokin and G. Ravagnan Analysis of LagoonalEcosysterns in the
Po River Delta Associated with Intensive Aquacultur 325

J.Brown, A. E. Hill, L. Fernandan and K.J.Horsburgh Observations of a Seasonal Jet-like
Circulation at the Centra North Sea Cold PoolMargin 343

U.L.Zweifel Factors Controlling Accumulation of Labile Pissolved Organic Carbon in the
Gulf of Riga 357

B.Dala ,T.A. Thorsen and A.fjellsa Dinoflagellate Cysts as Indicators of Cultural Eutrophication
in the oslofjord, norway 371

M.Holmer The Effect Oxygen Depletion on Anaerobic Matter Degradation in Marine
Sediments 383



J.A.Gonzalez-Oreja and j.l. saiz- salina loss of heterotropic biomass Biomass Structure in an
extereme estuarine environment 391

F.E. Grousset jm jouanneaup. castaing .g lavaux and c. latouche 70 YEAR RECORD
OF CONTAMINTION FROM INDUSTRIALACTIVITYAlong the Garonne River and its Tributaries (SW France).401

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ESTUARINE COASTAL AND SHELF SCIENCE
VOLUME 48 , NUMBER 4, APRILL 1999

CONTENTS

S. Covelli, J. Paganeli, M. Horvat and A. Brambati Porewater Distribution andBenthicFlux
Measurements of Mercury and Methylmercury in the Gulf of Trieste (Northern Adriatic Sea) 415

J. W. Kang Changes in Tidal Characteristics as a Result of the Construction of Sea-dike/Sea-walls
in the Mokpo Coastal Zone in Korea 429

0. Alvarez, A. lzquierdo, B. Tejedor, R. Mananes, L. Tejedor and B. A. Kagan The influencel
of Sediment Load on Tidal Dynamics, a Case Study: Cadiz Bay 439


D. M. Alongi, P. Tirendi, P. Dixon, L. A. Trott and G. J. Brunskill Mineralization of Organic
Matter in Intertidal Sediments of a Tropical Semi-enclosed Delta 451

M. Fallaci, A. Aloia, M. Audoglio, 1. Colombini, F. Scapiniand L.Chelazzi Differences in
Behavioural Strategies between Two Sympatric Talitrids (Amphipoda) Inhabiting an Exposed sandy
Beach of the French Atlantic Coast

S.D.Connell and M. P. Lincoln-Smith Depth and the Structure of Assemblages of Demersal fish
Experimental Trawling Along a Temperate Coast 483 483

T. J. B. Carruthers, D. 1. Walker and G. A. Kendrick Abundance of Ruppia megacarpa Mason in
a Seasonally Variable Estuary 497