Funk, Steffen; Möllmann, Christian (2023): Winter cod 2021: Monitoring data recorded during RV ALKOR cruise AL549 - Gadus morhua body and gonad measurements [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.963357
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Abstract:
This data contains monitoring data of the RV ALKOR cruise AL549 conducted in January 2021 (January 25th – February 1st) in the Western Baltic Sea by the University of Hamburg. The cruise was part of the 5-year monitoring programme Winter cod 2021-25 (Monitoring winter spawning activity of Western Baltic cod (Gadus morhua) (2021-25)) of the University of Hamburg aiming at investigating the early-winter spawning activity of Western Baltic cod to identify potential climate-induced shifts in spawning phenology. The data set includes cod single fish analysis data. All single fish measurements were made directly on board. Full wet weights of cod were measured and subsequently cod were gutted and liver weights, gonad weights and sexes, gutted wet weights (i.e., gutted wet mass), gonad stages and liver nematode infestations were recorded, and Otoliths were taken.
Keyword(s):
Related to:
Funk, Steffen; Möllmann, Christian (2021): Monitoring winter spawning activity of Western Baltic cod (Gadus morhua) (2021-25) Cruise No. AL549. Institute of Marine Ecosystem and Fishery Science Hamburg, Hamburg University, Hamburg, Germany, ALKOR-Berichte, Gutachterpanel Forschungsschiffe, AL549, 24 pp, https://doi.org/10.3289/cr_al549
References:
Tomkiewicz, Jonna; Tybjerg, Lars; Holm, Nina; Hansen, Alex; Broberg, Carl; Hansen, Erik (2002): Manual to determine gonadal maturity of Baltic cod. DFU-rapport 116-02, Charlottenlund: Danish Institute for Fisheries Research, 49 pp
Project(s):
Funding:
Federal Ministry of Education and Research (BMBF), grant/award no. 03F0914B: DAM sustainMare - SpaCeParti, University of Hamburg
Coverage:
Median Latitude: 54.521803 * Median Longitude: 10.926820 * South-bound Latitude: 54.225210 * West-bound Longitude: 10.152452 * North-bound Latitude: 54.686030 * East-bound Longitude: 11.677985
Date/Time Start: 2021-01-25T14:27:00 * Date/Time End: 2021-01-31T13:03:00
Minimum DEPTH, water: 23 m * Maximum DEPTH, water: 32 m
Event(s):
AL549_5-1 * Latitude: 54.643690 * Longitude: 10.158860 * Date/Time: 2021-01-25T13:18:00 * Elevation: -24.0 m * Location: Baltic Sea * Campaign: AL549 * Basis: Alkor (1990) * Method/Device: Trawl net (TRAWL)
AL549_7-1 * Latitude: 54.689060 * Longitude: 10.395970 * Date/Time: 2021-01-26T06:59:00 * Elevation: -31.0 m * Location: Baltic Sea * Campaign: AL549 * Basis: Alkor (1990) * Method/Device: Trawl net (TRAWL)
AL549_18-1 * Latitude: 54.525690 * Longitude: 11.324980 * Date/Time: 2021-01-27T07:13:00 * Elevation: -31.0 m * Location: Baltic Sea * Campaign: AL549 * Basis: Alkor (1990) * Method/Device: Trawl net (TRAWL)
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | Funk, Steffen | |||
| 2 | LATITUDE | Latitude | Funk, Steffen | Geocode | ||
| 3 | LONGITUDE | Longitude | Funk, Steffen | Geocode | ||
| 4 | DEPTH, water | Depth water | m | Funk, Steffen | Geocode | |
| 5 | DATE/TIME | Date/Time | Funk, Steffen | Geocode | ||
| 6 | Cruise/expedition | Expedition | Funk, Steffen | |||
| 7 | Station label | Station | Funk, Steffen | |||
| 8 | Haul | Haul | Funk, Steffen | |||
| 9 | Individual ID | Ind ID | Funk, Steffen | |||
| 10 | Gadus morhua, total length | G. morhua TL | mm | Funk, Steffen | Fish measuring board | |
| 11 | Gadus morhua, wet mass | G. morhua wm | g | Funk, Steffen | Marine scale, Marel, M2200 | |
| 12 | Gadus morhua, wet mass | G. morhua wm | g | Funk, Steffen | Marine scale, Marel, M2200 | gutted wet mass |
| 13 | Gadus morhua, parasitic nematodes in liver | G. morhua paras nematods | Funk, Steffen | visible nematodes in liver (0: no nematodes; 1: <10; 2: 11-20; 3: 21-30; 4: >=31) | ||
| 14 | Gadus morhua, liver, wet mass | G. morhua liver wm | g | Funk, Steffen | Marine scale, Marel, M2200 | |
| 15 | Gadus morhua, sex | G. morhua sex | Funk, Steffen | |||
| 16 | Gadus morhua, gonadal stage | G. morhua gon stg | Funk, Steffen | Determination of gonadal maturity according to Tomkiewicz et al. (2002) | ||
| 17 | Gadus morhua, gonad, wet mass | G. morhua gonad wm | g | Funk, Steffen | Marine scale, Marel, M2200 | |
| 18 | Otolith | Otolith | # | Funk, Steffen | unbroken sagittae otolith samples taken from Gadus morhua (from 0 to 2) |
Change history:
2024-06-06T09:49:23 – According to recent standards, species-specific parameter names were updated and the species UID columns removed for this single-species-dataset. The sample elevation column was converted to Depth, water (m).
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
399 data points