Dataset of daily mean values of water temperature in 2013 at Lake Päijänne, Jyväsjärvi, Finland.

Dataset provides nitrate concentrations measured in Lake Santo Parmense in 1991. Water samples were collected by means of a Ruttner bottle at different depths over the whole water column at the point of maximum depth of the lake. Samples were analysed by means of the Sodium Salicylate Method (Rodier, 1978).

Dataset provides dissolved oxygen measured in Lake Santo Parmense during the period 2001-2003. Water samples were collected by means of a Ruttner bottle at different depths over the whole water column at the point of maximum depth of the lake. Dissolved oxygen was measured by means of the Winkler method.

Physical and chemical parameters of Lake Ohrid and Lake Prespa

Dataset provides ammonia concentrations measured in Lake Santo Parmense in 1991. Water samples were collected by means of a Ruttner bottle at different depths over the whole water column at the point of maximum depth of the lake. Samples were analysed spectrophotometrically according to Koroleff (1970).

Dataset provides dissolved oxygen measured in Lake Santo Parmense during the period 2007-2010. Water samples were collected by means of a Ruttner bottle at different depths over the whole water column at the point of maximum depth of the lake. Dissolved oxygen was measured by means of the Winkler method.

Dataset provides dissolved oxygen measured in Lake Santo Parmense during the period 1971-1975. Water samples were collected by means of a Ruttner bottle at different depths over the whole water column at the point of maximum depth of the lake. Dissolved oxygen was measured by means of the Winkler method.

The data is for the Braila Islands LTSER site (LTER_EU_RO_006) recorded at Braila Naval Base (BN) for the period 2014-2018 using YSI Exo 2 and BBE Moldaenke Flourobprobe sampling equipment

Dataset provides dissolved oxygen measured in Lake Santo Parmense in 1991. Dissolved oxygen was measured by means of an oxygen probe at different depths over the whole water column at the point of maximum depth of the lake. On three dates water samples were collected with a Ruttner bottle and dissolved oxygen was measured by means of the Winkler method.

Dataset provides phytoplankton densities recorded in Lake Santo Parmense on one date in may 1990. Samples were collected by means of a Ruttner bottle at different depths over the whole water column at the point of maximum depth of the lake. An integrated sample was subsequently obtained by combining equal proportions of samples collected at the various depths and phytoplankton were identified and counted with an inverted microscope according to Utermöhl (1958).