Berg, Florian; Slotte, Aril; Johannessen, Arne; Kvamme, Cecilie; Clausen, Lotte Worsøe; Nash, Richard DM (2017): Biological data of local, coastal and oceanic Atlantic herring (Clupea harengus) in the North Sea, Skagerrak, Kattegat and Western Baltic [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.876671, Supplement to: Berg, F et al. (2017): Comparative biology and population mixing among local, coastal and offshore Atlantic herring (Clupea harengus) in the North Sea, Skagerrak, Kattegat and western Baltic. PLoS ONE, 12(10), e0187374, https://doi.org/10.1371/journal.pone.0187374
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Abstract:
The complex population structure of Atlantic herring (Clupea harengus) was studied in the northeast Atlantic. Biological and environmental data from 1970-2015 of 13 local, coastal and oceanic areas of the North Sea, Skagerrak, Kattegat and western Baltic were analyzed. The aim was to identify distinct populations by comparing historical data on the temporal and spatial variation in phenotypic characteristics as well as to indicate mixing of populations in time and space. Our data indicated clear variation in biological characteristics such as mean vertebral counts (VS), growth and maturity ogives among herring caught in the defined areas. Generalized adaptive models demonstrated temporal, as well as intra-annual, dynamics of VS to be a population specific trait in this study. High variability of VS was observed and it was not affected by environmental factors. The variability can be explained by variation in presence/absence of herring populations in certain areas. The three main populations identified within this paper represented the three managed stocks in this area: Norwegian spring spawners (NSS), western Baltic spring spawners (WBSS) and North Sea autumn spawners (NSAS). In addition, several local populations have been identified in fjords or lakes along the coast. Our data could not demonstrate direct mixing of local populations with the three main populations. However, local populations are included in the management of the three stocks, without knowing the extent of mixing. Our results clearly highlighted the importance of recognizing and understanding herring dynamics and mixing of populations as this is a challenge for the management of herring.
Further details:
Coverage:
Median Latitude: 58.922161 * Median Longitude: 4.191909 * South-bound Latitude: 49.730000 * West-bound Longitude: -7.930000 * North-bound Latitude: 62.780000 * East-bound Longitude: 14.700000
Date/Time Start: 1970-01-03T00:00:00 * Date/Time End: 2015-12-15T00:00:00
Event(s):
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | DATE/TIME | Date/Time | Berg, Florian | Geocode | ||
| 2 | Identification | ID | Berg, Florian | series number of catch | ||
| 3 | Area/locality | Area | Berg, Florian | |||
| 4 | Gear identification number | Gear ID | Berg, Florian | see Mjanger et al. 2012 | ||
| 5 | LATITUDE | Latitude | Berg, Florian | Geocode | ||
| 6 | Latitude 2 | Latitude 2 | Berg, Florian | mean latitude of the ICES rectangle of the catch | ||
| 7 | LONGITUDE | Longitude | Berg, Florian | Geocode | ||
| 8 | Latitude 2 | Latitude 2 | Berg, Florian | mean longitude of the ICES rectangle of the catch | ||
| 9 | Code | Code | Berg, Florian | area code, see Mjanger et al. 2012 | ||
| 10 | Code | Code | Berg, Florian | location code, see Mjanger et al. 2012 | ||
| 11 | Clupea harengus | C. harengus | # | Berg, Florian | per series no. | |
| 12 | Clupea harengus, total length | C. harengus TL | mm | Berg, Florian | ||
| 13 | Sex | Sex | Berg, Florian | |||
| 14 | Stage | Stage | Berg, Florian | immature = 1-2, maturing = 3-4, ripe = 5, spawning/running = 6, spent =7 and recovering = 8 | ||
| 15 | Number of vertebrae | Vertebrae | # | Berg, Florian | ||
| 16 | Clupea harengus, age | C. harengus age | a | Berg, Florian | ||
| 17 | Age | Age | a AD/CE | Berg, Florian | yearclass | |
| 18 | Phase | Phase | Berg, Florian | spawning phase, divided in pre- (Stage of maturity 3-5), spawning (Stage of maturity 6), and post-spawning fish (Stage of maturity 7-8) |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
5659618 data points
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