Boderie, P.M.A.; Zwolsman, J.J.G.; van Eck, G.Th.M.; van der Weijden, C.H. (1993). Nutrient biogeochemistry in the water column (N, P, Si) and pore-water (N) of sandy sediment of the Scheldt estuary (SW-Netherlands). Neth. J. Aquat. Ecol. 27(2-4): 309-318. https://dx.doi.org/10.1007/BF02334794, meer

Darbyshire, E.J.; West, J.R. (1993). The turbidity maximum in the Tamar estuary. Neth. J. Aquat. Ecol. 27(2-4): 121-133. https://dx.doi.org/10.1007/BF02334775, meer

Davey, J.T. (1993). Macrofaunal community bioturbation along an estuary gradient. Neth. J. Aquat. Ecol. 27(2-4): 147-153. https://dx.doi.org/10.1007/BF02334777, meer

Davoult, D.; Dewarumez, J.-M.; Frontier, S. (1993). Long-term changes (1979-1990) in three benthic communities (eastern English Channel): use of factor analysis and rank-frequency diagrams for studying structural developments. Neth. J. Aquat. Ecol. 27(2-4): 415-425. https://dx.doi.org/10.1007/BF02334803, meer

De Jonge, V.N.; Engelkes, M.M. (1993). The role of mineral compounds and chemical conditions in the binding of phosphate in the Ems estuary. Neth. J. Aquat. Ecol. 27(2-4): 227-236. https://dx.doi.org/10.1007/BF02334786, meer

Essink, K.; Kleef, H.L. (1993). Distribution and life cycle of the North American spionid polychaete Marenzelleria viridis (Verrill, 1873) in the Ems estuary. Neth. J. Aquat. Ecol. 27(2-4): 237-246. https://dx.doi.org/10.1007/BF02334787, meer

Forbes, A.T.; Cyrus, D.P. (1993). Biological effects of salinity gradients reversals in a southeast African estuarine lake. Neth. J. Aquat. Ecol. 27(2-4): 483-488. https://dx.doi.org/10.1007/BF02334808, meer

Gadel, F.; Charriere, B.; Serve, L. (1993). Behaviour of suspended and sedimentary organic matter in the deltaic areas of the Gulf of Lion (Mediterranean Sea). Neth. J. Aquat. Ecol. 27(2-4): 437-447. https://dx.doi.org/10.1007/BF02334805, meer

Grant, G.; Middleton, R. (1993). Trace metals in sediments from the Humber estuary: a statistical analysis of spatial uniformity. Neth. J. Aquat. Ecol. 27(2-4): 111-120. https://dx.doi.org/10.1007/BF02334774, meer

Hemminga, M.A.; van Soelen, J.; Kiswara, W. (1993). Estuarine gradients determining the quality of tidal march halophytes as host plants for endophagous insect larvae: experimental evidence. Neth. J. Aquat. Ecol. 27(2-4): 377-382. https://dx.doi.org/10.1007/BF02334799, meer

Laffoley, D.; Hiscock, K. (1993). The classification of benthic estuarine communities for nature conservation assessments in Great Britain. Neth. J. Aquat. Ecol. 27(2-4): 181-187. https://dx.doi.org/10.1007/BF02334781, meer

Leermakers, M.; Elskens, M.; Panatrakul, S.; Monteny, F.; Baeyens, W.F.J. (1993). Geochemistry of mercury in an intertidal flat of the Scheldt estuary. Neth. J. Aquat. Ecol. 27(2-4): 267-277. https://dx.doi.org/10.1007/BF02334790, meer

Li, J.; Vincx, M. (1993). The temporal variation of intertidal nematodes in the Westerschelde. I. The importance of an estuarine gradient. Neth. J. Aquat. Ecol. 27(2-4): 319-326. https://dx.doi.org/10.1007/BF02334795, meer

Lindsay, P.; Darbyshire, E.J.; Horsington, R.W.; Lynn, N.M.; West, J.R. (1993). The influence of density gradients on the transport of solutes in a deep estuary. Neth. J. Aquat. Ecol. 27(2-4): 77-86. https://dx.doi.org/10.1007/BF02334771, meer

Marchand, J. (1993). The influence of seasonal salinity and turbidity maximum variations on the nursery function of the Loire estuary (France). Neth. J. Aquat. Ecol. 27(2-4): 427-436. https://dx.doi.org/10.1007/BF02334804, meer

McGrorty, S.; Goss-Custard, J.D.; Clarke, R.T. (1993). Mussel Mytilus edulis (Mytilacea) dynamics in relation to environmental gradients and intraspecific interactions. Neth. J. Aquat. Ecol. 27(2-4): 163-171. https://dx.doi.org/10.1007/BF02334779, meer

McLusky, D.S.; Hull, S.C.; Elliot, M. (1993). Variations in the intertidal and subtidal macrofauna and sediments along a salinity gradient in the upper Forth estuary. Neth. J. Aquat. Ecol. 27(2-4): 101-109. https://dx.doi.org/10.1007/BF02334773, meer

McLusky, D.S. (1993). Marine and estuarine gradients: an overview. Neth. J. Aquat. Ecol. 27(2-4): 489-493. https://dx.doi.org/10.1007/BF02334809, meer

Moffat, A.M.; Jones, M.B. (1993). Correlation of the distribution of Mesopodopsis slabberi (Crustacea, Mysidacea) with physico-chemical gradients in a partially-mixed estuary (Tamar, England). Neth. J. Aquat. Ecol. 27(2-4): 155-162. https://dx.doi.org/10.1007/BF02334778, meer

Monteny, F.; Baeyens, W.F.J.; Elskens, M. (1993). The behaviour of copper and zinc in the Scheldt estuary. Neth. J. Aquat. Ecol. 27(2-4): 279-286. https://dx.doi.org/10.1007/BF02334791, meer

Moreira, M.H.; Queiroga, H.; Machado, M.M.; Cunha, M.R. (1993). Environmental gradients in a southern Europe estuarine system: Ria de Aveiro, Portugal: implications for soft bottom macrofauna colonization. Neth. J. Aquat. Ecol. 27(2-4): 465-482. https://dx.doi.org/10.1007/BF02334807, meer

Müller, M.; Schirmer, M.; Kettler, J. (1993). Use of Enteromorpha intestinalis (Chlorophyceae) for active biomonitoring of heavy metals in the Weser estuary. Neth. J. Aquat. Ecol. 27(2-4): 189-195. https://dx.doi.org/10.1007/BF02334782, meer

Rehbehn, R.; Schuchardt, B.; Schirmer, M.; Kirst, G.O. (1993). The distribution of Actinocyclus normanii (Bacillariophyceae) in estuaries: field observations and laboratory investigations. Neth. J. Aquat. Ecol. 27(2-4): 205-214. https://dx.doi.org/10.1007/BF02334784, meer

Rieger, E.-M.; Claus, B.; Peters, E.; Schirmer, M.; Schmitz-Feuerhake, I. (1993). Cesium isotope-activity in the Weser ecosystem three years after the disaster at Chernobyl. Neth. J. Aquat. Ecol. 27(2-4): 197-203. https://dx.doi.org/10.1007/BF02334783, meer

Rodrigues, A.M.J.; Quintino, V.M. (1993). Horizontal biosedimentary gradients across the Sado estuary, W. Portugal. Neth. J. Aquat. Ecol. 27(2-4): 449-464. https://dx.doi.org/10.1007/BF02334806, meer

Rybarczyk, H.; Desprez, M.; Ducrotoy, J.-P.; Olivesi, R.; Delesmont, R.; Jamet, F.; Elkaim, B. (1993). Dynamics of nutrients and faecal bacteria in a macrotidal estuary: the Bay of Somme (France). Neth. J. Aquat. Ecol. 27(2-4): 395-404. https://dx.doi.org/10.1007/BF02334801, meer

Schuchardt, B.; Haesloop, B.; Schirmer, M. (1993). The tidal freshwater reach of the Weser estuary: riverine or estuarine? Neth. J. Aquat. Ecol. 27(2-4): 215-226. https://dx.doi.org/10.1007/BF02334785, meer

Stronkhorst, J. (1993). The environmental risks of pollution in the Scheldt estuary. Neth. J. Aquat. Ecol. 27(2-4): 383-393. https://dx.doi.org/10.1007/BF02334800, meer

Taylor, C.J.L. (1993). The zooplankton of the Forth estuary. Neth. J. Aquat. Ecol. 27(2-4): 87-99. https://dx.doi.org/10.1007/BF02334772, meer

Texier, H.; Lafite, R.; Dupont, J.-P.; Firmin, V.; Gadel, F.; Serve, L.; Charriere, B. (1993). Organic matter transport across a macrotidal estuary gradient: the Seine estuary, France. Neth. J. Aquat. Ecol. 27(2-4): 405-413. https://dx.doi.org/10.1007/BF02334802, meer

Van Gils, J.A.G.; Ouboter, M.R.L.; De Rooij, N.M. (1993). Modelling of water and sediment quality in the Scheldt estuary. Neth. J. Aquat. Ecol. 27(2-4): 257-265. https://dx.doi.org/10.1007/BF02334789, meer

van Maldegem, D.C.; Mulder, H.P.J.; Langerak, A. (1993). A cohesive sediment balance for the Scheldt estuary. Neth. J. Aquat. Ecol. 27(2-4): 247-256. https://dx.doi.org/10.1007/BF02334788, meer

van Zoest, R.; van Eck, G.Th.M. (1993). Behaviour of selected PCBs, PAHs and gamma-HCH in the Scheldt estuary, S.W. Netherlands. Neth. J. Aquat. Ecol. 27(2-4): 301-308. https://dx.doi.org/10.1007/BF02334793, meer

Watson, P.G.; Frickers, P.E.; Howland, R.J.M. (1993). Benthic fluxes of nutrients and some trace metals in the Tamar estuary, SW England. Neth. J. Aquat. Ecol. 27(2-4): 135-146. https://dx.doi.org/10.1007/BF02334776, meer

Wilson, J.G.; Brennan, M.; Brennan, B. (1993). Horizontal and vertical gradients in sediment nutrients on mudflats in the Shannon estuary, Ireland. Neth. J. Aquat. Ecol. 27(2-4): 173-180. https://dx.doi.org/10.1007/BF02334780, meer

Ysebaert, T.J.; Meire, P.; Maes, D.; Buijs, J. (1993). The benthic macrofauna along the estuarine gradient of the Schelde estuary. Neth. J. Aquat. Ecol. 27(2-4): 327-341. https://dx.doi.org/10.1007/BF02334796, meer

Zwolsman, J.J.G.; van Eck, G.Th.M. (1993). Dissolved and particulate trace metal geochemistry in the Scheldt estuary, S.W. Netherlands (water column and sediments). Neth. J. Aquat. Ecol. 27(2-4): 287-300. https://dx.doi.org/10.1007/BF02334792, meer