A Technique for Preparing Fin Rays and Spines for Age and Growth Analysis

Koch, Jeff D.; Quist, Michael C.

doi:10.1577/m06-224.1

Cited by 96 publications

(80 citation statements)

References 7 publications

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“…We extracted pectoral spines from a subsample of 10 fish per 10-mm group for age and growth analysis. We prepared spines according to Koch and Quist (2007) and sectioned them at both the articulating process and the basal recess with a Buehler low-speed isomet saw (Buehler, Lake Bluff, Illinois, USA). We viewed spine sections with a stereo microscope (UNITRON Z850; Commack, New York, USA) using transmitted light through a darkfield attachment and recorded a digital image of each structure from each fish with a Motic 5.0 MP camera (Richmond, British Columbia, Canada) mounted on the trinocular body of the stereo microscope.…”

Section: Methodsmentioning

confidence: 99%

Population dynamics of introduced flathead catfish in Lake Mitchell, South Dakota

Lucchesi

Wagner

Stevens

et al. 2017

Journal of Freshwater Ecology

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The introduction of flathead catfish (Pylodictis olivaris) into Lake Mitchell presented a unique opportunity to study the population dynamics of this species in a South Dakota impoundment. We collected flathead catfish using daytime, low-frequency electrofishing during June 2013, 2014, and 2015 and July, August and October of 2014 to examine population characteristics including abundance, recruitment, mortality, growth, condition, and diet. The flathead catfish population in Lake Mitchell was estimated at 1348 individuals (95% CI = 459-1455; density = 4.97/ha) in 2014 and 1197 individuals (95% CI = 931-1461; density = 4.42/ha) in 2015. Individuals from 11 year classes ranging from 1 to 13 years old were present. The population exhibited consistent recruitment, and annual mortality was estimated at 39%. Flathead catfish grew quickly exceeding stock length at age 3 and quality length at age 5; however, growth slowed in 2015. Similarly, condition of substock and stock-quality length fish declined in 2014 and 2015, respectively. The decline in growth and condition coincided with the recruitment of a large 2012 year class and may be an early indicator of intraspecific competition. Diets of Lake Mitchell flathead catfish primarily consisted of crayfish (Orconectes spp.) and fish with flathead catfish shifting to piscivory at approximately 400 mm. The high percentage of centrarchids in flathead catfish diets along with an increase in flathead catfish abundance coinciding with a decrease in bluegill abundance may indicate that flathead catfish are negatively impacting the bluegill population in Lake Mitchell.

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Section: Methodsmentioning

confidence: 99%

Population dynamics of introduced flathead catfish in Lake Mitchell, South Dakota

Lucchesi

Wagner

Stevens

et al. 2017

Journal of Freshwater Ecology

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“…Lapillus otoliths are prepared by methods modified from Koch and Quist (2007). Whole lapillus otoliths are prepared using a multiple-stage process.…”

Section: Age Analysismentioning

confidence: 99%

Assessment of the fish tumor beneficial use impairment in brown bullhead (<i>Ameiurus nebulosus</i>) at selected Great Lakes Areas of Concern

Blazer¹,

Mazik²,

Iwanowicz³

et al. 2014

Open-File Report

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For more information on the USGS-the Federal source for science about the Earth, its natural and living resources, natural hazards, and the environment, visit http://www.usgs.gov or call 1-888-ASK-USGS. For an overview of USGS information products, including maps, imagery, and publications, visit http://www.usgs.gov/pubprodTo order this and other USGS information products, visit http://store.usgs.gov Any use of trade, firm, or product names is for descriptive purposes only and does not imply endorsement by the U.S. Government.Although this information product, for the most part, is in the public domain, it also may contain copyrighted materials as noted in the text. Permission to reproduce copyrighted items must be secured from the copyright owner.Suggested citation: Blazer, V.S., Mazik, P.M., Iwanowicz, L.R., Braham, R.P., Hahn, C.M., Walsh H.L., and Sperry, A.J., 2014, Assessment of the fish tumor beneficial use impairment in brown bullhead (Ameiurus nebulosus) at selected Great Lakes Areas of Concern: U.S. Geolological Survey Open-File Report 2014-1105, 17 p., http://dx.doi.org/10.3133/ofr20141105. ISSN 2331-1258 iii Acknowledgments AbstractA total of 878 adult brown bullhead were collected at 11 sites within the Lake Erie and Lake Ontario drainages from 2011 to 2013. The sites included seven Areas of Concern (AOC; 670 individuals), one delisted AOC (50 individuals) and three non-AOC sites (158 individuals) used as reference sites. These fish were used to assess the "fish tumor or other deformities" beneficial use impairment. Fish were anesthetized, weighed, measured and any external abnormalities documented and removed. Abnormal orocutaneous and barbel tissue, as well as five to eight pieces of liver, were preserved for histopathological analyses. Otoliths were removed and used for age analyses. Visible external abnormalities included reddened (raised or eroded), melanistic areas and raised growths on lips, body surface, fins, and barbels. Microscopically, these raised growths included papilloma, squamous cell carcinoma, osteoma, and osteosarcoma. Proliferative lesions of the liver included bile duct hyperplasia, foci of cellular alteration, bile duct (cholangioma, cholangiocarcinoma) and hepatocellular (adenoma, hepatic cell carcinoma) neoplasia. The two reference sites (Long Point Inner Bay, Conneaut Creek) at which 30 or more bullhead were collected had a skin tumor prevalence of 10 percent (%) or less and liver tumor prevalence of 4% or less. Presque Isle Bay, recently delisted, had a similar liver tumor prevalence (4%) and slightly higher prevalence (12%) of skin tumors. The prevalence of skin neoplasms was 15% or less at sites in the Black River, Cuyahoga River, and Maumee AOCs, while more than 20% of the bullheads from the Rochester Embayment, Niagara River, Detroit River, and Ashtabula River AOCs had skin tumors. The prevalence of liver tumors was greater than 4% at all AOC sites except the Old Channel site at the Cuyahoga River AOC, Wolf Creek within the Maumee AOC, and the upper and lower sites ...

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“…Inexpensive and fast preparation techniques for the dorsal spine and fin ray are available (Koch and Quist 2007). However, due to its more regular shape, use of the dorsal spine may be preferred to that of fin rays (Yates et al 2016).…”

Section: Directions For Future Researchmentioning

confidence: 99%

“…Yates et al 2016). In case of similarity in age estimates, use of the dorsal spine or pectoral fin ray may be preferable for practical reasons (Koch and Quist 2007), even when release of carp back into the waters is discouraged (e.g. http://www.dpi.nsw.…”

Section: Directions For Future Researchmentioning

confidence: 99%

Age determination in common carp Cyprinus carpio: history, relative utility of ageing structures, precision and accuracy

Vilizzi

2018

Rev Fish Biol Fisheries

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The common carp Cyprinus carpio is one of the most widely-distributed freshwater fishes in the world. Due to its value for conservation and fisheries in several native/translocated areas of distribution and its detrimental effects on the aquatic ecosystem in most invasive areas, robust age-based population dynamics models are required for successful management of this species. The present study provides a global review of age determination in carp, including a historical account of ageing methods, an assessment of the relative utility of ageing structures, and an evaluation of precision and accuracy (i.e. validation) of age estimates. Historically, scales were by far the most widely-employed structure, followed by the operculum, otolith, dorsal spine, vertebra and fin ray. However, in countries where carp is categorised as 'high risk' of impact, use of alternative structures to the scale was predominant. Causal criteria analysis showed scales and opercula to provide inconsistent evidence for successful annulus identification/counting, whereas consistent evidence was found for otoliths, dorsal spines, vertebrae and (pectoral) fin rays. Precision was always above reference thresholds for scales, whereas for otoliths, dorsal spines and fin rays was in several cases below. Accuracy was addressed sporadically and mostly in high-risk countries. It is suggested that dorsal spines or pectoral fin rays should be used in lieu of scales as non-lethal ageing structures, and otoliths (or vertebrae, pending more research) otherwise, and that validation should always be attempted as part of the set-up of more appropriate ageing protocols and use of correct terminology.

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A Technique for Preparing Fin Rays and Spines for Age and Growth Analysis

Cited by 96 publications

References 7 publications

Population dynamics of introduced flathead catfish in Lake Mitchell, South Dakota

Population dynamics of introduced flathead catfish in Lake Mitchell, South Dakota

Assessment of the fish tumor beneficial use impairment in brown bullhead (<i>Ameiurus nebulosus</i>) at selected Great Lakes Areas of Concern

Age determination in common carp Cyprinus carpio: history, relative utility of ageing structures, precision and accuracy

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