Projects per year
Abstract
A comparison of growth data (fish length) with latitude shows that southern juvenile mackerel attain a greater length than those originating from further north before growth ceases during their first winter. A similar significant relationship was found between the growth in the first year (derived from the otolith inner winter ring) and latitude for adult mackerel spawning between 44°N (Bay of Biscay) and 54°N (west of Ireland). These observations are consistent with spatial segregation of the spawning migration; the further north that the fish were hatched, the further north they will tend to spawn. No such relationship was found in mackerel spawning at more northerly latitudes, possibly as a consequence of increased spatial mixing in a more energetic regime with stronger currents. This study provides previously lacking support for spawning segregation behaviour among North East Atlantic mackerel – an important step towards understanding the migratory behaviour of mackerel and hence the spatiotemporal distribution dynamics around spawning time
Original language | English |
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Journal | P L o S One |
Volume | 8 |
Issue number | 2 |
Pages (from-to) | e58114 |
ISSN | 1932-6203 |
DOIs | |
Publication status | Published - 2013 |
Fingerprint Dive into the research topics of 'Spatial segregation within the spawning migration of North Eastern Atlantic mackerel (Scomber scombrus) as indicated by juvenile growth patterns'. Together they form a unique fingerprint.
Projects
- 1 Finished
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EURO-BASIN: European basin-scale analysis, synthesis and integration (EURO-BASIN) (38899)
St. John, M., Köster, F., MacKenzie, B., Andersen, K. H., Jonasdottir, S., Kiørboe, T., Koski, M., Munk, P., Stæhr, K., Vinther, M., Visser, A. & Grigorov, I.
01/01/2010 → 31/12/2014
Project: Research