Citation:

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

Name: (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
Creator: G V Ilin
Published: 1993
License: https://creativecommons.org/licenses/by/3.0/

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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):

IL-T1-1 * Latitude: 72.000000 * Longitude: 30.000000 * Date/Time: 1987-04-28T00:00:00 * Location: Barents Sea * Method/Device: Water sample (WS)

IL-T1-2 * Latitude: 72.000000 * Longitude: 39.666667 * Date/Time: 1987-07-01T00:00:00 * Location: Barents Sea * Method/Device: Water sample (WS)

IL-T1-3 * Latitude: 69.650000 * Longitude: 36.666667 * Date/Time: 1987-07-03T00:00:00 * Location: Barents Sea * Method/Device: Water sample (WS)

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

Data

Download dataset as tab-delimited text — use the following character encoding:

1 Event	2 Latitude	3 Longitude	4 Date/Time	5 Area	6 Depth water [m]	7 Temp [°C] (in situ)	8 P [µmol/l] (of phosphate, Wet chemistry)	9 P org [µmol/l] (Wet chemistry)	10 Protein [µg/l] (modified Lowry method)	11 PhAT [µmol P/l/h] (at 20°C, p-nitrophenil phosph...)	12 PhAS [µmol P/h/mg] (at 20°C, Calculated)	13 PhAT [µmol P/l/h] (at in situ temperature, Calcu...)	14 Time [h] (recycling oforganic phosphoru...)
IL-T1-1	72.000	30.000	1987-04-28	Barents Sea	0	6.2	0.12	0.73	440	0.0480	0.108	0.0220	33.2
IL-T1-2	72.000	39.667	1987-07-01	Barents Sea	0	3.3	0.01	0.83	23	0.0420	1.810	0.0160	51.9
IL-T1-3	69.650	36.667	1987-07-03	Barents Sea	0	5.7	0.08	0.73	119	0.0900	0.760	0.0810	18.7
IL-T1-4	71.600	27.433	1987-07-05	Barents Sea	0	5.7	0.22	0.76	55	0.0750	1.360	0.0330	23.0
IL-T1-5	72.350	26.983	1987-07-16	Barents Sea	0	5.6	0.40	0.37
IL-T1-6	74.883	23.000	1987-07-13	Barents Sea	0	1.5	0.00	0.70	424	0.0280	0.067	0.0100	70.0
IL-T1-7	69.833	41.500	1989-01-13	Barents Sea	0	1.6	0.63	0.25	68	0.0030	0.044	0.0009	277.0
IL-T1-7	69.833	41.500	1989-01-13	Norwegian Sea	50	1.5	0.61	0.19	77	0.0023	0.030	0.0007	271.0
IL-T1-8	60.583	3.333	1989-04-06	Norwegian Sea	0	8.0	0.64	0.18	91	0.0062	0.069	0.0028	64.0
IL-T1-9	74.133	20.083	1989-06-23	Norwegian Sea	0	1.0	0.58	0.22	21	0.0092	0.439	0.0028	78.0
IL-T1-10	65.233	10.000	1990-09-06	Norwegian Sea	0	12.9	0.15	0.25	137	0.0024	0.018	0.0017	147.0
IL-T1-11	60.550	2.300	1990-09-10	Norwegian Sea	0	13.4	0.00	0.27	168	0.0145	0.086	0.0103	26.2
IL-T1-12	73.867	20.133	1990-10-01	Norwegian Sea	0	7.6	0.17	0.21	168	0.0093	0.055	0.0043	48.8