Ilin, G V (1993): (Table 1) Activity of alkali phosphatase in suspended matter at 20°C and environmental temperatures, and recycling time of organic phosphorus in the Barents and Norwegian seas [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.759997, Supplement to: Ilin, GV (1993): Alkali phosphatase activity and its influence on the circulation rate of phosphorus in the Barents and Norwegian Seas. Oceanology, 33(1), 73-76
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Abstract:
Alkali phosphatase activity and hydrochemical structure of waters in the Barents and Norwegian seas were investigated. In a sea with the seasonal bioproduction cycle alkali phosphatase activity is also seasonal, rising with trophic level of waters. At the end of hydrological and biological winter activity is practically zero. Alkali phosphatase activity is especially important in summer, when plankton has consumed winter supply of phosphate in the euphotic layer and nutrient limitation of primary production begins. In summer production and destruction cycle, apparent time for recycling of phosphorus by phosphatase in suspended matter in the euphotic layer of the Barents Sea and Norwegian Sea averages from 7 to 30 hours.
Project(s):
Archive of Ocean Data (ARCOD)
Coverage:
Median Latitude: 69.723611 * Median Longitude: 23.425000 * South-bound Latitude: 60.550000 * West-bound Longitude: 2.300000 * North-bound Latitude: 74.883333 * East-bound Longitude: 41.500000
Date/Time Start: 1987-04-28T00:00:00 * Date/Time End: 1990-10-01T00:00:00
Minimum DEPTH, water: 0 m * Maximum DEPTH, water: 50 m
Event(s):
Comment:
Specific activity - for 1 mg of protein.
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | ||||
| 2 | Latitude of event | Latitude | ||||
| 3 | Longitude of event | Longitude | ||||
| 4 | Date/Time of event | Date/Time | ||||
| 5 | Area/locality | Area | Ilin, G V | |||
| 6 | DEPTH, water | Depth water | m | Geocode | ||
| 7 | Temperature, water | Temp | °C | Ilin, G V | in situ | |
| 8 | Phosphorus | P | µmol/l | Ilin, G V | Wet chemistry | of phosphate |
| 9 | Phosphorus, organic | P org | µmol/l | Ilin, G V | Wet chemistry | |
| 10 | Proteins | Protein | µg/l | Ilin, G V | modified Lowry method | |
| 11 | Phosphatase activity, total | PhAT | µmol P/l/h | Ilin, G V | p-nitrophenil phosphate method | at 20°C |
| 12 | Phosphatase activity, specific | PhAS | µmol P/h/mg | Ilin, G V | Calculated | at 20°C |
| 13 | Phosphatase activity, total | PhAT | µmol P/l/h | Ilin, G V | Calculated | at in situ temperature |
| 14 | Time in hours | Time | h | Ilin, G V | Calculated | recycling oforganic phosphorus |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
112 data points