Tracking long‐distance migration of marine fishes using compound‐specific stable isotope analysis of amino acids

Matsubayashi, Jun; Osada, Yoshihito; Abe, Yoshiyuki; Yamaguchi, Atsushi; Shirai, Kotaro; Honda, Kentaro; Yoshikawa, Chisato; Ogawa, Nanako O.; Ohkouchi, Naohiko; Ishikawa, Naoto F.; Nagata, Toshi; Miyamoto, Hiroomi; Nishino, Shigeto; Tayasu, Ichiro

doi:10.1111/ele.13496

Cited by 43 publications

(54 citation statements)

References 61 publications

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“…For example, although cost and size remains prohibitive for use in large numbers and at all life-history stages, satellite tags hold great potential to provide individual-level information about location and environmental conditions in the future (e.g., Strøm et al 2018). Advances in stable isotope composition analysis can provide more detailed insights into long distance migrations without the need for tagging (Matsubayashi et al 2020), while decreasing costs for genetic tagging offer opportunities for improving sample sizes via ''close-kin markrecapture'' (Bravington et al 2016). Finally, eDNA techniques may be used to determine kinship, sex ratios, population size, and density, although its application for longitudinal studies at the individual level is unclear based on current practices (Adams et al 2019;Spear et al 2020).…”

Section: Understanding How Previous Life-history Stages Affect Maturation: the Value Of Technological Advances In Longitudinal Studiesmentioning

confidence: 99%

Maturation in Atlantic salmon (Salmo salar, Salmonidae): a synthesis of ecological, genetic, and molecular processes

Mobley

Aykanat

Czorlich

et al. 2021

Rev Fish Biol Fisheries

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Over the past decades, Atlantic salmon (Salmo salar, Salmonidae) has emerged as a model system for sexual maturation research, owing to the high diversity of life history strategies, knowledge of trait genetic architecture, and their high economic value. The aim of this synthesis is to summarize the current state of knowledge concerning maturation in Atlantic salmon, outline knowledge gaps, and provide a roadmap for future work. We summarize the current state of knowledge: 1) maturation in Atlantic salmon takes place over the entire life cycle, starting as early as embryo development, 2) variation in the timing of maturation promotes diversity in life history strategies, 3) ecological and genetic factors influence maturation, 4) maturation processes are sex-specific and may have fitness consequences for each sex, 5) genomic studies have identified large-effect loci that influence maturation, 6) the brain-pituitary–gonadal axis regulates molecular and physiological processes of maturation, 7) maturation is a key component of fisheries, aquaculture, conservation, and management, and 8) climate change, fishing pressure, and other anthropogenic stressors likely have major effects on salmon maturation. In the future, maturation research should focus on a broader diversity of life history stages, including early embryonic development, the marine phase and return migration. We recommend studies combining ecological and genetic approaches will help disentangle the relative contributions of effects in different life history stages to maturation. Functional validation of large-effect loci should reveal how these genes influence maturation. Finally, continued research in maturation will improve our predictions concerning how salmon may adapt to fisheries, climate change, and other future challenges.

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Section: Understanding How Previous Life-history Stages Affect Maturation: the Value Of Technological Advances In Longitudinal Studiesmentioning

confidence: 99%

Maturation in Atlantic salmon (Salmo salar, Salmonidae): a synthesis of ecological, genetic, and molecular processes

Mobley

Aykanat

Czorlich

et al. 2021

Rev Fish Biol Fisheries

View full text Add to dashboard Cite

show abstract

“…For example, although cost and size remains prohibitive for use in large numbers and at all life-history stages, satellite tags hold great potential to provide individual-level information about location and environmental conditions in the future (e.g., Strøm, Thorstad, Hedger, & Rikardsen, 2018). Advances in stable isotope composition analysis can provide more detailed insights into long distance migrations without the need for tagging (Matsubayashi et al, 2020), while decreasing costs for genetic tagging offer opportunities for improving sample sizes via "close-kin mark-recapture" (Bravington, Grewe, & Davies, 2016). Finally, eDNA techniques may be used to determine kinship, sex ratios, population size, and density, although its application for longitudinal studies at the individual level is unclear based on current practices (Adams et al, 2019;Spear, Embke, Krysan, & Vander Zanden, 2020).…”

Section: Understanding How Previous Life-history Stages Affect Maturamentioning

confidence: 99%

Maturation in Atlantic salmon (Salmo salar, Salmonidae): a synthesis of ecological, genetic, and molecular processes

Mobley¹,

Aykanat²,

Czorlich³

et al. 2020

Preprint

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Over the past decades, Atlantic salmon (Salmo salar, Salmonidae) has emerged as a model system for sexual maturation research, owing to the high diversity of life history strategies, knowledge of trait genetic architecture, and their high economic value. The aim of this synthesis is to summarize the current state of knowledge concerning maturation in Atlantic salmon, outline knowledge gaps, and provide a roadmap for future work. Our summary of the current state of knowledge: 1) maturation in Atlantic salmon takes place over the entire life cycle, starting as early as embryo development, 2) variation in the timing of maturation promotes diversity in life history strategies, 3) ecological and genetic factors influence maturation, 4) maturation processes are sex-specific and may have fitness consequences for each sex, 5) genomic studies have identified large-effect loci that influence maturation, 6) the brain-pituitary-gonadal axis regulates molecular and physiological processes of maturation, 7) maturation is a key component of fisheries, aquaculture, conservation, and management, and 8) climate change, fishing pressure, and other anthropogenic stressors likely have major effects on salmon maturation. In the future, maturation research should focus on a broader diversity of life history stages, including early embryonic development, the marine phase and return migration. We recommend studies combining ecological and genetic approaches will help disentangle their relative contributions to maturation. Functional validation of large-effect loci should reveal how these genes influence maturation. Finally, continued research in maturation will improve our predictions concerning how salmon may adapt to fisheries, climate change, and other future challenges.

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“…However, the advances in tracking technology and the ecological theory of fish migrations have not been fully integrated into management (Lowerre-Barbieri et al, 2019). In addition to the conventional biologging approach, bio-tracers such as isotopes are increasing in popularity as a tool used to track fish migrations (Matsubayashi et al, 2020). Isotope records in body parts such as lenses, otoliths, scales and vertebrae of fish can be used to reconstruct their diets and movements within isotopically variable environments, providing valuable information for management (Tzadik et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

“…In contrast, phenylalanine (Phe), a source amino acid (SAA) shows little 15 N enrichment (about 0-1 ) relative to diet during trophic transfer. Therefore, this SAA directly estimates the δ 15 N value at the base of the food web (Ohkouchi et al, 2017) and is useful for studying the migration of fish, thus allowing for direct comparison of isotope ratios between the target migratory animal and an isoscape (Matsubayashi et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

Compound-Specific Nitrogen Isotope Analysis of Amino Acids in Eye Lenses as a New Tool to Reconstruct the Geographic and Trophic Histories of Fish

et al. 2022

Self Cite

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Fish migration has always played an essential role in marine conservation and fisheries management. However, migration patterns are changing globally alongside changing ocean conditions. This affects the spatial scale of required governance and, consequently, our food supply. Technological advances in the bio-tracer approach using isotopes would make it possible to monitor fish migration differently from the conventional bio-logging method. Eye lenses of fish are incrementally grown and metabolically inert. Therefore, stable isotope analysis of eye lenses can reconstruct the geographic and trophic histories of fish. However, it is difficult to distinguish between the two pieces of information: migration and changing trophic relationships with the conventional bulk stable isotope approach. In this study, we measured the nitrogen isotope ratios of individual amino acids in eye lenses of chub mackerel (n = 3) from the western North Pacific to test whether the two pieces of information could be distinguished. A maximum of 34 growth layers was obtained from a single eye lens. For assigning the isotopic trends observed in lens tissues to specific life stages or size classes, we established a relationship between lens size and fork length (FL) as a reference framework. The reconstructed nitrogen isotope chorology of chub mackerel showed an increase in trophic position of about 1 unit from juvenile (FL ∼30 mm) to adult stages (FL ∼300 mm). The variation in nitrogen isotope ratios of phenylalanine (a source amino acid) in the eye lenses was –3 to 5‰. This baseline variability could be used for estimating fish movements. This study proposed compound-specific nitrogen isotope analysis of amino acids in eye lenses as a new tool capable of reconstructing the geographic and trophic histories of migratory fish.

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Tracking long‐distance migration of marine fishes using compound‐specific stable isotope analysis of amino acids

Cited by 43 publications

References 61 publications

Maturation in Atlantic salmon (Salmo salar, Salmonidae): a synthesis of ecological, genetic, and molecular processes

Maturation in Atlantic salmon (Salmo salar, Salmonidae): a synthesis of ecological, genetic, and molecular processes

Maturation in Atlantic salmon (Salmo salar, Salmonidae): a synthesis of ecological, genetic, and molecular processes

Compound-Specific Nitrogen Isotope Analysis of Amino Acids in Eye Lenses as a New Tool to Reconstruct the Geographic and Trophic Histories of Fish

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