Since 2008, discrete sampling twice a week in the vegetation period. Along the Southern Baltic - a transect from Gdynia (Poland) to Karlskrona (Sweden). Measurements of chlorophyll a, phytoplankton, hepatoxins.

Citation: Institute of Meteorology and Water Management - IMGW, Poland; (2016). National ferrybox project - discrete sampling by IMWM

Published: September 17, 2025 at 09:04

URL: http://ipt.vliz.be/eurobis/resource?r=polish_ferrybox_phytoplankton_data

Institute of Meteorology and Water Management; Maritime Branch
Institute of Meteorology and Water Management; Maritime Branch

Wlodzimierz Krzyminski
Institute of Meteorology and Water Management; Maritime Branch

Flanders Marine Institute (VLIZ)
Flanders Marine Institute (VLIZ)

1,728

occurrence records

10,306

measurements and facts

taxa

species

Taxa

Missing and invalid fields

Field	Missing	Invalid
coordinateUncertaintyInMeters	1,728		100.0%
maximumDepthInMeters	1,728		100.0%
minimumDepthInMeters	1,728		100.0%
scientificNameID	260	435	40.2%

Quality flags

The OBIS data quality flags are documented at https://github.com/iobis/obis-qc.

Flag	Records
NO_DEPTH	1,728	100.0%
NO_MATCH	695	40.2%
WORMS_ANNOTATION_NO_BIOTA	260	15.0%
NO_ACCEPTED_NAME	102	5.9%
NOT_MARINE	23	1.3%
MARINE_UNSURE	14	0.8%

National ferrybox project - discrete sampling by IMWM

Taxa

Missing and invalid fields

Quality flags

Measurement types

DNA derived data