Surface layer salinity gradients and flow patterns in the archipelago coast of SW Finland, northern Baltic Sea

Abstract

To cite this version:Tapio Suominen, Harri Tolvanen, Risto Kalliola. Surface layer salinity gradients and flow patterns in the archipelago coast of SW Finland, northern Baltic Sea. Marine Environmental Research, Elsevier, 2010, 69 (4) This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain. ACCEPTED MANUSCRIPT

The North American mud crab Rhithropanopeus harrisii (Gould, 1841) in newly colonized Northern Baltic Sea: distribution and ecology

“…Laboratory experiments have shown larvae in the native range survive salinities of 2.5 -40 psu and 20 -30ºC (Costlow et al 1966;Christiansen and Costlow 1975). The salinity of the Baltic Sea ranges from 0-30 psu in the Danish straits (Leppäranta and Myrberg 2009), with high values in the Arkona basin close to the entrance and almost fresh water in the northern parts of the Gulf of Bothnia (Suominen et al 2010).…”

Spatio-temporal representativeness of euphotic depth in situ sampling in transitional coastal waters

“…Furthermore, the vertical mixing of water columns occurs every spring and autumn, causing the summer and winter thermoclines to disappear (Leppäranta and Myrberg, 2009). The water salinity in the region varies between 5.0 and 6.5, and no stable halocline exists (Suominen et al, 2010a). Local currents and temporary density differences are formed, for example, by winds, sea level changes, and freshwater inflows (Kauppila and Bäck, 2001).…”

Temporal analysis of remotely sensed turbidity in a coastal archipelago

“…7. The prevailing northward surface layer current from the Baltic Proper through the archipelago towards the Bothnian Sea in the north (Hietala et al, 2007;Myrberg and Andrejev, 2006;Suominen et al, 2010) keeps the water properties more stable in the central archipelago and turns the flow of turbid fluvial waters northward along the east coast.…”

“…In temporally dynamic and topographically fragmented coastal waters irregular changes hinder the use of temporal gap-filling methods based on temporally adjacent values, as they cannot follow irregular changes over long intervals. Spatial gapfilling such as interpolation techniques, in turn, are limited because of the anisotropic characteristics of coastal waters, due to barriers, currents and tides (Dunn and Ridgway, 2002;Little et al, 1997;Suominen et al, 2010).…”