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It’s elemental, my ...
It’s elemental, my dear watson : Validating seasonal patterns in otolith chemical chronologies
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- Hüssy, Karin (author)
- Technical University of Denmark
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- Krüger-Johnsen, Maria (author)
- Technical University of Denmark
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- Thomsen, Tonny Bernt (author)
- Geological Survey of Denmark and Greenland, Copenhagen, Denmark
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- Heredia, Benjamin Dominguez (author)
- Geological Survey of Denmark and Greenland, Copenhagen, Denmark
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- Næraa, Tomas (author)
- Lund University,Lunds universitet,Berggrundsgeologi,Geologiska institutionen,Naturvetenskapliga fakulteten,Lithosphere and Biosphere Science,Department of Geology,Faculty of Science
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- Limburg, Karin E. (author)
- Sveriges lantbruksuniversitet,Swedish University of Agricultural Sciences,State University of New York College of Environmental Science and Forestry,Institutionen för akvatiska resurser,Department of Aquatic Resources,State University of New York College of Environmental Science and Forestry (SUNY-ESF)
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- Heimbrand, Yvette (author)
- Sveriges lantbruksuniversitet,Swedish University of Agricultural Sciences,Institutionen för akvatiska resurser,Department of Aquatic Resources
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- McQueen, Kate (author)
- Thünen Institute of Baltic Sea Fisheries
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- Haase, Stefanie (author)
- Thünen Institute of Baltic Sea Fisheries
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- Krumme, Uwe (author)
- Thünen Institute of Baltic Sea Fisheries
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- Casini, Michele (author)
- Sveriges lantbruksuniversitet,Swedish University of Agricultural Sciences,University of Bologna,Institutionen för akvatiska resurser,Department of Aquatic Resources
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- Mion, Monica (author)
- Sveriges lantbruksuniversitet,Swedish University of Agricultural Sciences,Institutionen för akvatiska resurser,Department of Aquatic Resources
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- Radtke, Krzysztof (author)
- National Marine Fisheries Research Institute
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(creator_code:org_t)
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- Canadian Science Publishing, 2021
- 2021
- English 16 s.
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In: Canadian Journal of Fisheries and Aquatic Sciences. - : Canadian Science Publishing. - 0706-652X .- 1205-7533. ; 78:5, s. 551-566
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Abstract
Subject headings
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- Accurate age data are essential for reliable fish stock assessment. Yet many stocks suffer from inconsistencies in age interpretation. A new approach to obtain age makes use of the chemical composition of otoliths. This study validates the periodicity of recurrent patterns in25 Mg,31 P,34 K,55 Mn,63 Cu,64 Zn,66 Zn,85 Rb,88 Sr,138 Ba, and208 Pb in Baltic cod (Gadus morhua) otoliths from tag–recapture and known-age samples. Otolith P concentrations showed the highest consistency in seasonality over the years, with minima co-occurring with otolith winter zones in the known-age otoliths and in late winter – early spring when water temperatures are coldest in tagged cod . The timing of minima differs between stocks, occurring around February in western Baltic cod and 1 month later in eastern Baltic cod; seasonal maxima are also stock-specific, occurring in August and October, respectively. The amplitude in P is larger in faster-growing western compared with eastern Baltic cod. Seasonal patterns with minima in winter – late spring were also evident in Mg and Mn, but less consistent over time and fish size than P. Chronological patterns in P, and to a lesser extent Mg and Mn, may have the potential to supplement traditional age estimation or to guide the visual identification of translucent and opaque otolith patterns used in traditional age estimation.
Subject headings
- NATURVETENSKAP -- Biologi -- Ekologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Ecology (hsv//eng)
- LANTBRUKSVETENSKAPER -- Annan lantbruksvetenskap -- Vilt- och fiskeförvaltning (hsv//swe)
- AGRICULTURAL SCIENCES -- Other Agricultural Sciences -- Fish and Wildlife Management (hsv//eng)
Publication and Content Type
- art (subject category)
- ref (subject category)
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- By the author/editor
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Hüssy, Karin
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Krüger-Johnsen, ...
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Thomsen, Tonny B ...
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Heredia, Benjami ...
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Næraa, Tomas
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Limburg, Karin E ...
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show more...
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Heimbrand, Yvett ...
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McQueen, Kate
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Haase, Stefanie
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Krumme, Uwe
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Casini, Michele
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Mion, Monica
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Radtke, Krzyszto ...
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show less...
- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Biological Scien ...
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and Ecology
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- AGRICULTURAL SCIENCES
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AGRICULTURAL SCI ...
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and Other Agricultur ...
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and Fish and Wildlif ...
- Articles in the publication
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Canadian Journal ...
- By the university
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Lund University
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Swedish University of Agricultural Sciences