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Bomb radiocarbon age validation of Pacific ocean perch (Sebastes alutus) using new statistical methods
We used bomb-produced radiocarbon ( 14 C) to validate ages of Pacific ocean perch (Sebastes alutus), which are routinely estimated with the cut-and-burn method at the Alaska Fisheries Science CenterExpand
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Using 210Pb/226Ra disequilibrium to validate conventional ages in Scorpaenids (genera Sebastes and Sebastolobus)
Age determination of rockfish (genera Sebastes) and thornyheads (genera Sebastolobus) is typically accomplished by counting growth zones in burnt cross-sections of the otoliths. Interpretation ofExpand
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Age validation of Pacific cod (Gadus macrocephalus) using high-resolution stable oxygen isotope (δ 18O) chronologies in otoliths
The Pacific cod (Gadus macrocephalus) fishery in Alaska is large and economically important; in 2014 its ex-vessel value was $203.8 million. Management relies on integrated assessments that employExpand
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Using Pb-210/Ra-226 disequilibria for sablefish, Anoplopoma fimbria, age validation
-Age determination of sablefish (Anoplopoma fimbria) is typically done by counting growth zones on the bumt crosssection of the otolith. The breakand-bum method of age determination is difficult toExpand
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Growth dynamics of saffron cod (Eleginus gracilis) and Arctic cod (Boreogadus saida) in the Northern Bering and Chukchi Seas
Abstract Saffron cod ( Eleginus gracilis ) and Arctic cod ( Boreogadus saida ) are two circumpolar gadids that serve as critically important species responsible for energy transfer in Arctic foodExpand
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A 200-year archaeozoological record of Pacific cod (Gadus macrocephalus) life history as revealed through ion microprobe oxygen isotope ratios in otoliths
Abstract We measured δ18O values in modern and archaeological Pacific cod (Gadus macrocephalus) otoliths recovered from Aialik Bay on the Pacific coast of the Kenai Peninsula, Alaska, using a highExpand
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Perspectives on the relationship between otolith growth and the conversion of isotope activity ratios to fish ages
Ageing of fish otoliths using radiometric methods is now becoming widely accepted. Using this methodology, one has the choice of extracting otolith cores or modeling otolith mass growth. ModelingExpand
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Age validation of walleye pollock (Theragra chalcogramma) from the Gulf of Alaska using the disequilibrium of Pb-210 and Ra-226
The walleye pollock (Theragra chalcogramma) is a commercially important species in the North Pacific, and harvest quotas are dependent upon accurate determination of ages. The two techniques (calledExpand
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A transformative approach to ageing fish otoliths using Fourier transform near infrared spectroscopy: a case study of eastern Bering Sea walleye pollock (Gadus chalcogrammus)
We investigated the use of Fourier transform near infrared spectroscopy (FT-NIRS), which is a method of measuring light absorbance signatures, to derive ages from eastern Bering Sea walleye pollock...
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Corroborating the ages of walleye pollock (Theragra chalcogramma)
Fish ageing researchers have long recognised the importance of validating age-reading methodologies. The strongest age validations require the acquisition of ageing structures from fish ofExpand
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