Otolith mass marking techniques for aquaculture and restocking: benefits and limitations

Warren‐Myers, Fletcher; Dempster, Tim; Swearer, Stephen E.

doi:10.1007/s11160-018-9515-4

Cited by 20 publications

(18 citation statements)

References 101 publications

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“…; Warren‐Myers et al. 2018a). This is of particular importance for long‐lived species, such as Lake Sturgeon, because managers must be able to track the survivorship of hatchery‐released individuals over many years (Taylor et al.…”

Section: Discussionmentioning

confidence: 99%

“…Tag persistence is a crucial factor in determining the efficacy of fisheries marking techniques (Cadrin et al 2004;Warren-Myers et al 2018a). This is of particular importance for long-lived species, such as Lake Sturgeon, because managers must be able to track the survivorship of hatchery-released individuals over many years (Taylor et al 2005).…”

Section: Identification Of Lake Sturgeon Natal Originmentioning

confidence: 99%

“…; Warren‐Myers et al. 2018a). As an alternative to physical tags, elemental signatures in hard structures (i.e., otoliths, fin rays, vertebrae, and eye lenses) of fish have proven useful as natural markers to reconstruct environmental life histories and identify the natal origin or nursery habitats of individuals (Thorrold et al.…”

mentioning

confidence: 99%

“…To measure the success of stocking efforts, hatcheryreared individuals need to be distinguishable from naturally spawned fish, typically for many years after release (Taylor et al 2005). A variety of marking techniques is available, including passive, electronic, and biological tagging, each with their own distinct advantages and disadvantages (Pine et al 2003;Cadrin et al 2004;Drenner et al 2012;Warren-Myers et al 2018a). As an alternative to physical tags, elemental signatures in hard structures (i.e., otoliths, fin rays, vertebrae, and eye lenses) of fish have proven useful as natural markers to reconstruct environmental life histories and identify the natal origin or nursery habitats of individuals (Thorrold et al 2001;Tzadik et al 2017b;Warren-Myers 2018b).…”

mentioning

confidence: 99%

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Identification of Hatchery‐Reared Lake Sturgeon Using Natural Elemental Signatures and Elemental Marking of Fin Rays

Loeppky

McDougall²,

Anderson

2020

N American J Fish Manag

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Stock enhancement programs often involve the introduction of hatchery‐reared fish into wild environments, with the goal of increasing the abundance of a particular stock. To measure the success of stocking efforts for depressed populations, hatchery‐reared individuals must be distinguishable from naturally spawned fish, potentially many years after release. Biological tags are attractive due to their ability to batch‐mark whole cohorts in a cost‐effective manner, with minimal disruption to hatchery procedures and reduced handling stress inflicted on individuals during the marking process. Elemental marking may occur naturally or via deliberate manipulation of the concentration of specific elements to create recognizable elemental signatures in the hard structures of fish (e.g., fin rays and otoliths). In this study, elemental signatures in the fin rays of known hatchery‐released Lake Sturgeon Acipenser fulvescens (ages 1–7) were quantified via laser ablation (LA) inductively coupled plasma–mass spectrometry (ICP‐MS) to assess whether the ambient water chemistry in a groundwater‐fed hatchery would create an elemental signature that facilitated discrimination of hatchery‐reared individuals from those naturally spawned in the wild. The concentrations of divalent trace elements, particularly Mn, within the first growth band of hatchery‐reared fish were significantly different from those of wild conspecifics, allowing us to accurately classify hatchery‐ versus wild‐spawned individuals with 99% success. In addition, we conducted a preliminary experiment to test the validity of two separate 24‐h immersions in 86Sr and 137Ba (immersions were conducted 30 d apart) to induce multiple combination marks in the fin rays of juvenile Lake Sturgeon. Fin rays collected 60 d after the second immersion were analyzed for isotopic ratios via LA ICP‐MS, and results indicated that elemental marking at both time points was achieved with 100% success. Induction of a combination of isotopic signatures could enable hatcheries to track the success of families or stocking groups within a single year‐class or across multiple year‐classes.

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Section: Discussionmentioning

confidence: 99%

Section: Identification Of Lake Sturgeon Natal Originmentioning

confidence: 99%

mentioning

confidence: 99%

mentioning

confidence: 99%

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Identification of Hatchery‐Reared Lake Sturgeon Using Natural Elemental Signatures and Elemental Marking of Fin Rays

Loeppky

McDougall²,

Anderson

2020

N American J Fish Manag

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“…However, the efficacy of marking techniques varies among species. Thus, which method produces high-quality marks with lower costs in target species must be assessed (Warren-Myers et al 2018).…”

Section: Introductionmentioning

confidence: 99%

Evaluation of the 137Ba mass-marking technique and potential effects in the early life history stages of Sepioteuthis lessoniana

Chun-I

Chung

Shih

et al. 2019

Mar. Freshwater Res.

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The use of mass-marking techniques of enriched stable isotopes has increased in studies of ecology, movement patterns and the dispersal of marine organisms. However, the efficacy of this technique and its potential effects on hatchling size and statolith chemistry of cephalopods are yet to be investigated. Sepioteuthis lessoniana egg capsules were collected from northern Taiwan and assigned randomly to 137Ba-spiking experimental groups at 0.2, 0.5 and 1ppm and three immersion durations (1, 3 and 7 days). Immersion duration >3 days produced significantly lower 138Ba:137Ba ratios, with 100% marking success, indicating that it is a reliable marking technique. The 137Ba mass marking had a positive effect on size at hatch and was likely to affect statolith trace element incorporation, including Cu, Zn and Pb. These findings highlight that it is necessary to consider the species-specific effects on hatchling size and physiological responses in when using stable isotopes mass-marking techniques.

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Reading the biomineralized book of life: expanding otolith biogeochemical research and applications for fisheries and ecosystem-based management

Patrick

Gillanders

Sturrock

et al. 2022

Rev Fish Biol Fisheries

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Chemical analysis of calcified structures continues to flourish, as analytical and technological advances enable researchers to tap into trace elements and isotopes taken up in otoliths and other archival tissues at ever greater resolution. Increasingly, these tracers are applied to refine age estimation and interpretation, and to chronicle responses to environmental stressors, linking these to ecological, physiological, and life-history processes. Here, we review emerging approaches and innovative research directions in otolith chemistry, as well as in the chemistry of other archival tissues, outlining their value for fisheries and ecosystem-based management, turning the spotlight on areas where such biomarkers can support decision making. We summarise recent milestones and the challenges that lie ahead to using otoliths and archival tissues as biomarkers, grouped into seven, rapidly expanding and application-oriented research areas that apply chemical analysis in a variety of contexts, namely: (1) supporting fish age estimation; (2) evaluating environmental stress, ecophysiology and individual performance; (3) confirming seafood provenance; (4) resolving connectivity and movement pathways; (5) characterising food webs and trophic interactions; (6) reconstructing reproductive life histories; and (7) tracing stock enhancement efforts. Emerging research directions that apply hard part chemistry to combat seafood fraud, quantify past food webs, as well as to reconcile growth, movement, thermal, metabolic, stress and reproductive life-histories provide opportunities to examine how harvesting and global change impact fish health and fisheries productivity. Ultimately, improved appreciation of the many practical benefits of archival tissue chemistry to fisheries and ecosystem-based management will support their increased implementation into routine monitoring. Graphical abstract

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Otolith mass marking techniques for aquaculture and restocking: benefits and limitations

Cited by 20 publications

References 101 publications

Identification of Hatchery‐Reared Lake Sturgeon Using Natural Elemental Signatures and Elemental Marking of Fin Rays

Identification of Hatchery‐Reared Lake Sturgeon Using Natural Elemental Signatures and Elemental Marking of Fin Rays

Evaluation of the 137Ba mass-marking technique and potential effects in the early life history stages of Sepioteuthis lessoniana

Reading the biomineralized book of life: expanding otolith biogeochemical research and applications for fisheries and ecosystem-based management

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