Deutsches Ozeanographisches
Datenzentrum
Inventur der Isis-Reise - (DOD-Ref-No.19990155)
Inventory of Isis Cruise - (DOD-Ref-No.19990155)
Plattform Platform |
Reise-Nr. Cruise-No. |
Zeitraum Period |
Projekt Project |
Arbeitsgebiet Working area |
---|---|---|---|---|
Isis | - | 17.08.1998 - 11.09.1998 | North Sea |
Fahrtleiter Chief Scientist | Institut Institute | Auslaufhafen Port of departure | Einlaufhafen Port of return | Stationskarte Station map | Schiffsroute Trackchart |
---|---|---|---|---|---|
van Beek F.A. | Rijksinstituut voor Visserijonderzoek, Netherlands Institute for Fisheries Research | Ymuiden | Ymuiden |
Ziel der Reise / Objectives of Cruise:
The survey was carried out with the following aims: - to obtain fishery independent indices on the abundance of the most abundant age groups of plaice and sole in the North Sea. - to obtain otolith samples for these species and other non-commercial species for the derivation of age-length keys. - to sample the other fish fauna and macrozoobenthos. - to measure the length distribution of Cancer pagurus by sex. - monitoring the effect of closed areas: comparison of fish and benthos fauna inside and outside the plaice box.
Messungen / Measurements
Institut Institute |
Wissenschaftler Scientist |
Anzahl Number |
Einheit Unit |
Typ der Messungen Type of measurements |
Kommentar Comments |
Daten im DOD Data in DOD |
---|---|---|---|---|---|---|
RIVO | van Beek F.A. | 1424 | samples | B14 Pelagic fish |
Otoliths of different fish species for age determination | no |
RIVO | van Beek F.A. | 70 | hauls | B19 Demersal fish |
of 30 minutes with Beam-trawl | no |