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- W2317389970 abstract "MEPS Marine Ecology Progress Series Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout the JournalEditorsTheme Sections MEPS 520:217-233 (2015) - DOI: https://doi.org/10.3354/meps11106 Home ranges and spatial segregation of cod Gadus morhua spawning components Jón Sólmundsson1,*, Ingibjörg G. Jónsdóttir1, Björn Björnsson1, Stefán Á. Ragnarsson1, Gunnar G. Tómasson2, Vilhjálmur Thorsteinsson1 1Marine Research Institute, Skúlagata 4, PO Box 1390, 121 Reykjavík, Iceland 2Reykjavik University, School of Science and Engineering, Menntavegur 1, 101 Reykjavík, Iceland *Corresponding author: jonsol@hafro.is ABSTRACT: The study analyses the home ranges and spatial segregation of spawning components of Icelandic cod Gadus morhua based on: (1) conventional tag (CT) recaptures and (2) depth, temperature and tidal locations from electronic data storage tags (DSTs). A total of 5987 CT recapture positions from tagging in geographically distinct spawning grounds from 1991 to 2008 were used in the home range analysis. Despite long-distance feeding migrations conducted by individuals within all groups and feeding home ranges of 25000 to 125000 km2, the study revealed a low spatial overlap among a number of spawning components throughout the year. A high fidelity to spawning grounds within most spawning components studied further indicates a strong spatial structure within the cod population. Results from CTs and home range analysis were supported by geographical tidal locations from DSTs. On the other hand, data from 235 DSTs indicate that foraging migrations to depths of 400 to 800 m are underrepresented by conventional mark-recapture methods. This study contributes to the growing knowledge of the within-population diversity and demographic structure of cod and further emphasizes the need for considering these factors in fishery management. KEY WORDS: Data storage tags · Homing · Straying · Migration · Population structure Full text in pdf format PreviousNextCite this article as: Sólmundsson J, Jónsdóttir IG, Björnsson B, Ragnarsson SÁ, Tómasson GG, Thorsteinsson V (2015) Home ranges and spatial segregation of cod Gadus morhua spawning components. Mar Ecol Prog Ser 520:217-233. https://doi.org/10.3354/meps11106 Export citation RSS - Facebook - Tweet - linkedIn Cited by Published in MEPS Vol. 520. Online publication date: February 03, 2015 Print ISSN: 0171-8630; Online ISSN: 1616-1599 Copyright © 2015 Inter-Research." @default.
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- W2317389970 title "Home ranges and spatial segregation of cod Gadus morhua spawning components" @default.
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