Identification of stocked muskellunge and potential for distinguishing hatchery‐origin and wild fish using pelvic fin ray microchemistry

Rude, Neil P.; Smith, Kurt T.; Whitledge, Gregory W.

doi:10.1111/fme.12081

Cited by 25 publications

(45 citation statements)

References 52 publications

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“…This is consistent with hatchery‐stocked Muskellunge, in which hatchery‐specific Sr:Ca signatures were retained for at least 7 years after stocking into wild environments (Rude et al. ). Growth bands and annuli (i.e., nongrowth bands, typically corresponding with overwinter growth cessation) can become more compressed as the fish ages, particularly at the onset of sexual maturity (Francis and Horn ; Bruch et al.…”

Section: Discussionsupporting

confidence: 84%

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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: Discussionsupporting

confidence: 84%

“…Natural differences in ambient water chemistry reflected in the elemental signatures that accumulated in otoliths and fin rays during hatchery rearing were used to successfully identify the origin of known hatchery‐reared Muskellunge Esox masquinongy (Rude et al. ) and unmarked hatchery‐ and wild‐reared June Sucker Chasmistes liorus (Wolff et al. ).…”

mentioning

confidence: 99%

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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“…Stable oxygen isotope ratios were expressed in the standard delta (δ) notation, defined as the parts per thousand (ppt) deviation between the isotope ratio of a sample and standard material (Vienna Standard Mean Ocean Water for water δ 18 O):

δ^{18} normalO (() ‰) = ([], ((), R_{sample} true/ R_{standard}) - 1) \times 1000

where R represents 18 O/ 16 O. Analytical precision estimated from analysis of laboratory standards was 0.07‰. Water samples for analysis of strontium and calcium concentrations were filtered using acid‐cleaned polypropylene syringes and Whatman Puradisc (GE Healthcare Life Sciences, Pittsburgh, PA, USA) 0.45‐µm polypropylene syringe filters (Shiller, ; Rude et al, ) and refrigerated until over‐night shipment and analysis at the Center for Trace Analysis, University of Southern Mississippi. Following acidification and dilution of water samples in the laboratory (Rude et al, ), samples were analysed for 44 Ca and 88 Sr in high resolution using a Thermo‐Finnigan Element 2 (Thermo Fisher Scientific, Waltham, MA, USA) inductively coupled plasma mass spectrometer.…”

Section: Methodsmentioning

confidence: 99%

Recruitment Sources of Channel and Blue Catfishes Inhabiting the Middle Mississippi River

Laughlin

Whitledge

Oliver

et al. 2016

River Research & Apps

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Insight into environments that contribute recruits to adult fish stocks in riverine systems is vital for effective population management and conservation. Catfish are an important recreational species in the Mississippi River and are commercially harvested. However, contributions of main channel and tributary habitats to catfish recruitment in large rivers are unknown. Stable isotope and trace elemental signatures in otoliths are useful for determining environmental history of fishes in a variety of aquatic systems, including the Mississippi River. The objectives of this study were to identify the principal natal environments of channel catfish Ictalurus punctatus and blue catfish I. furcatus in the middle Mississippi River (MMR) using otolith stable oxygen isotopic composition (δ 18 O) and strontium:calcium ratios (Sr:Ca). Catfishes were sampled during July-October 2013-2014 and lapilli otoliths were analyzed for δ 18 O and Sr:Ca. Water samples from the MMR and tributaries were collected seasonally from 2006-2014 to characterize sitespecific signatures. Persistent differences in water δ 18 O and Sr:Ca among the MMR and tributaries (including the upper Mississippi, Illinois, and Missouri rivers as well as smaller tributaries) were evident, enabling identification of natal environment for individual fish. Blue and channel catfish stocks in the MMR primarily recruited from the large rivers (Missouri and Mississippi) in our study area, with minimal contributions from smaller tributaries. Recruitment and year class strength investigations and efforts to enhance spawning and nursery habitats should be focused in the large rivers with less emphasis in smaller tributaries.

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“…To test the efficacy of this technique, controlled experiments have documented the conservation of trace elements in fin rays via “elemental tagging” (e.g., Smith and Whitledge ; Woodcock et al ). Applications also include the identification of wild vs. nursery‐hatched individuals (Wolff et al ), stock contributions to fisheries (Rude et al ), and the identification of effective nursery habitat (sensu Beck et al ; Dahlgren et al ) for endangered species and those of management concern (Smith and Whitledge ; Phelps et al ).…”

Section: Fin Rays (23–29% Calcified)mentioning

confidence: 99%

Chemical archives in fishes beyond otoliths: A review on the use of other body parts as chronological recorders of microchemical constituents for expanding interpretations of environmental, ecological, and life‐history changes

Tzadik

Curtis

Granneman

et al. 2017

Limnology & Ocean Methods

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Microchemical analyses of fish otoliths have revolutionized fisheries science. Molecules deposited within otoliths may originate from ambient water and diet, with molecular concentrations being subject to subsequent physiological alteration after exposure. Analyses of otolith microstructure and incorporation of inorganic elements have led to major advances in stock assessment and fisheries ecology. However, the use of otoliths for microchemical analyses has drawbacks. Specifically, otolith removal from live specimens requires specimen sacrifice, which may be forbidden in the case of protected species. In addition, otoliths rarely contain sufficient concentrations of organic matter to allow reconstruction of food-web relationships via multiple stable isotopes, and otolith microstructure can be difficult to interpret in some species. Here, we review alternatives to otoliths that can provide microchemical analytes for life-history studies in fishes. Our focus is to describe advantages and disadvantages to the use of each alternative structure, with particular attention paid to trace-element analysis for inorganic matrices and stable-isotope analysis for organic ones. In general, the chronological analysis of elemental and isotopic values within each structure depends on the inert nature (or lack of molecular turnover) of the tissue. Structures with high turnover rates or those that are metabolically active will not effectively record elemental or isotopic compositions over time. Here, we provide an assessment of the use of bony endoskeleton, fin spines, fin rays, scales, and eye lenses as alternatives or complements to fish otolith analysis.

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Identification of stocked muskellunge and potential for distinguishing hatchery‐origin and wild fish using pelvic fin ray microchemistry

Cited by 25 publications

References 52 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

Recruitment Sources of Channel and Blue Catfishes Inhabiting the Middle Mississippi River

Chemical archives in fishes beyond otoliths: A review on the use of other body parts as chronological recorders of microchemical constituents for expanding interpretations of environmental, ecological, and life‐history changes

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