Determination of hematology and plasma chemistry reference intervals for 3 populations of captive Atlantic sturgeon (Acipenser oxyrinchus oxyrinchus)

This technical note describes a field study investigating the movements of federally endangered Atlantic sturgeon, Acipenser oxyrinchus oxyrinchus (ATS), during the summer and fall of 2017 near a cutterhead dredge working in the James River, Virginia, to provide data addressing the concern about the potential impacts of dredging activities (for example, excavation, transit, disposal, sounds, reduced water quality) on the ATS.

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Determination of pediatric reference intervals for 25 analytes using the VITROS® 5600 Integrated System

Clinical Biochemistry ◽

10.1016/j.clinbiochem.2010.04.008 ◽

2010 ◽

Vol 43 (9) ◽

pp. 776

Author(s):

I.M. Blasutig ◽

B. Jung ◽

V. Kulasingam ◽

S. Baradaran ◽

Y. Chen ◽

...

Keyword(s):

Reference Intervals ◽

Integrated System

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Atlantic sturgeon Acipenser oxyrinchus surfacing behaviour

Journal of Fish Biology ◽

10.1111/jfb.13552 ◽

2018 ◽

Vol 92 (4) ◽

pp. 929-943

Author(s):

L. M. Logan-Chesney ◽

M. J. Dadswell ◽

R. H. Karsten ◽

I. Wirgin ◽

M. J. W. Stokesbury

Keyword(s):

Atlantic Sturgeon ◽

Acipenser Oxyrinchus

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Anadromous Sturgeons: Habitats, Threats, and Management

Anadromous Sturgeons: Habitats, Threats, and Management ◽

10.47886/9781888569919.ch23 ◽

2007 ◽

Keyword(s):

South Carolina ◽

Brackish Water ◽

Data Sets ◽

Water Interface ◽

Atlantic Sturgeon ◽

Gill Net ◽

Large Numbers ◽

Class Strength ◽

Study Designs ◽

Acipenser Oxyrinchus

Abstract.â€”The anadromous Atlantic sturgeon Acipenser oxyrinchus once supported an important commercial fishery throughout its range (northern Florida, USA, to Labrador, Canada). All surviving populations are apparently depleted, presumably due to overfishing, pollution, and dam construction. A complete moratorium on the fishery has been established in U.S. waters. Unfortunately, population status is unknown for nearly all systems. Several 1994â€“2001 data sets from South Carolina rivers were examined for their potential in development of recruitment (year-class abundance) indices. Because Atlantic sturgeon often begin leaving their natal systems at age 2, after which they occupy other systems and then presumably return to natal areas at sexual maturity several years later, a valid river-specific abundance index must be based on either age0â€“1 or adult fish. Working with three former commercial Atlantic sturgeon fishermen to collect adults in two rivers during the spring and fall of 1998 resulted in collection of only 39 fish in 13 nominal age-classes. In another river, 2 years of monthly sampling with multipanel, anchored gill nets and otter trawls at eight stations throughout the estuary produced only 31 juvenile Atlantic sturgeon. Neither of these study designs provided adequate sample sizes. However, sampling in a clean-bottom section at the freshwaterâ€“brackish water interface of the Edisto River with a modified drift gill net produced large numbers of small Atlantic sturgeon. More than 3,000 juveniles have been collected and tagged since 1994. The 1,331 nominal age-1 Atlantic sturgeon that were captured displayed a distinct bimodal length frequency distribution, supporting the hypothesis that there are both spring and fall spawning events. A period of record drought impeded sampling efforts during a portion of this study. However, when flows and bottom configurations allow nets to be fished at the freshwaterâ€“brackish water interface, the gears and methods employed in the Edisto River can produce an age-1 Atlantic sturgeon catch per unit effort that is high enough to be used in estimating relative year-class strength.

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Anadromous Sturgeons: Habitats, Threats, and Management

Anadromous Sturgeons: Habitats, Threats, and Management ◽

10.47886/9781888569919.ch19 ◽

2007 ◽

Keyword(s):

Large Scale ◽

Atlantic Coast ◽

The United States ◽

Management Plan ◽

Commercial Fishing ◽

Atlantic Sturgeon ◽

Coastal Fisheries ◽

Number Of Factors ◽

Acipenser Oxyrinchus ◽

The U.S

Abstract.â€”Large-scale commercial fisheries for Atlantic sturgeon Acipenser oxyrinchus in the late 1880s eventually led to substantial reductions in the population size. The coastwide Atlantic sturgeon population of the United States has not recovered to the levels seen prior to the 1900s. A number of factors have contributed to the slow recovery or continued decline of Atlantic sturgeon populations, including continued commercial fishing and the targeting of females for caviar, bycatch in other fisheries, and changes in habitat due to dam construction and water quality degradation. The Atlantic States Marine Fisheries Commission (ASMFC) developed the first coastwide management plan for Atlantic sturgeon in 1990. In response to the shortcomings of that plan, the ASMFC applied new standards and the authority granted to it by the U.S. Congress to adopt a coastwide moratorium on all harvesting in 1998. A federal status review conducted in 1998 concluded that the continued existence of Atlantic sturgeon was not threatened given the situation at the time. Since then, monitoring programs have indicated varying levels of relative abundance in several water bodies along the Atlantic coast. The U.S. government is responsible for undertaking a status review to document any changes since the last review and determining whether those findings warrant a threatened or endangered listing for the species. The governmentâ€™s findings may have far-reaching effects on many other Atlantic coastal fisheries.

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Life in the Slow Lane: Ecology and Conservation of Long-Lived Marine Animals

Life in the Slow Lane: Ecology and Conservation of Long-Lived Marine Animals ◽

10.47886/9781888569155.ch6 ◽

1999 ◽

Keyword(s):

Fisheries Management ◽

Fish Species ◽

Ionization Mass ◽

Atlantic Sturgeon ◽

Marine Animals ◽

Accuracy And Precision ◽

Fin Ray ◽

Ion Exchange Separation ◽

Radiometric Ages ◽

Acipenser Oxyrinchus

Abstract. —Radiometric aging of fishes is a recently developed technique using the disequilibria of 210 Pb:226 Ra in calcified structures to determine age. It has been applied successfully to several fish species, but certain limitations have made improvements desirable. Because 226 Ra can be measured directly by counting atoms using isotope-dilution thermal ionization mass spectrometry (TIMS), a new ion-exchange separation technique was developed to isolate small quantities of radium from calcified structures for TIMS determination. The advantages of this new technique are reduced sample mass and processing time, and greater accuracy and precision of radium quantification. We applied this technique to calcified structures from three fish species: otolith cores of Pacific grenadier Coryphaenoides acrolepis and tarpon Megalops atlanticus, and pectoral fin ray cores of Atlantic sturgeon Acipenser oxyrinchus. Annulus-derived age estimates for C. acrolepis were accurate with a confirmed longevity of at least 48 years. Although annulus-derived ages for M. atlanticus were inconsistent with radiometric ages, radiometric aging confirmed that tarpon are longlived; females may exceed 82 years. Radiometric age could not be determined for A. oxyrinchus because 210 Pb activities were greater than could be supported by ingrowth from 226 Ra decay. In this paper we discuss the application and limitations of this technique and its relevance to fisheries management.

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Growth and Survival of Hatchery-Produced Atlantic Sturgeon Released as Young-of-Year into the Hudson River, New York

Journal of Fish and Wildlife Management ◽

10.3996/012011-jfwm-005 ◽

2012 ◽

Vol 3 (1) ◽

pp. 23-32 ◽

Cited By ~ 4

Author(s):

Jerre W. Mohler ◽

John A. Sweka ◽

Andrew Kahnle ◽

Kathryn Hattala ◽

Amanda Higgs ◽

...

Keyword(s):

New York ◽

Atlantic Coast ◽

Hudson River ◽

Atlantic Sturgeon ◽

Growth And Survival ◽

New York Bight ◽

Hatchery Fish ◽

Pectoral Spine ◽

Acipenser Oxyrinchus ◽

Pelvic Fin

Abstract In 2007, a team of U.S. scientists performed a status review of Atlantic sturgeon Acipenser oxyrinchus oxyrinchus and concluded that the species would likely become endangered (U.S. Endangered Species Act 1973, as amended) in the foreseeable future over much of its range, including populations of the New York Bight, which is comprised of the Hudson and Delaware rivers. Therefore, we evaluated an experimental release of hatchery-produced Atlantic sturgeon that took place in 1994 to determine the value of using stocked fish as a population recovery tool. We obtained recapture data on hatchery fish (identified by presence of pelvic fin removal) from the Atlantic Coast Sturgeon Tagging Database. Our evaluation of retention for a pelvic fin removal mark on hatchery fish showed that 36% of clipped individuals retained a clean fin clip after 49 d. The minimum survival rate for hatchery fish to age 5 was estimated to be in the range of 0.49–0.66% using documented recaptures (N = 24), known number of fish stocked, and results of the pelvic fin removal evaluation. Length and weight-at-age for recaptured hatchery fish at known ages 5–17 were within the range of values reported for wild fish whose ages were estimated by pectoral spine analysis. We also report that one ripe male hatchery fish at age 15 was captured along with other spermiating males at its parental spawning area in the Hudson River in 2009.

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Specific determination of 3-methoxy-4-hydroxyphenylethylene glycol in urine by liquid chromatography with post-column reaction.

Clinical Chemistry ◽

10.1093/clinchem/34.1.87 ◽

1988 ◽

Vol 34 (1) ◽

pp. 87-90 ◽

Cited By ~ 1

Author(s):

K Abe ◽

R Konaka

Keyword(s):

High Performance ◽

Signal To Noise Ratio ◽

High Performance Liquid Chromatographic ◽

Reference Intervals ◽

Reversed Phase ◽

Sodium Metaperiodate ◽

Liquid Chromatographic Method ◽

Analytical Recovery ◽

Liquid Chromatographic

Abstract We describe a "high-performance" liquid-chromatographic method for determining 3-methoxy-4-hydroxyphenylethylene glycol (MHPG) in human urine. MHPG is separated on a reversed-phase column with isocratic elution, oxidized with sodium metaperiodate, and its absorbance measured at 365 nm. This method shows higher specificity, less interference for MHPG than methods involving electrochemical or fluorescence detection. Post-column derivatization of MHPG with periodate yields vanillin. The detection limit (twice the signal-to-noise ratio) in urine samples was 0.08 mg/L. Mean analytical recovery was 72%. Within-assay and day-to-day CVs were 2.9% and 6.5%, respectively. Reference intervals for MHPG in 24-h urine from apparently healthy subjects were 0.85-3.24 mg/day for men and 0.63-2.20 mg/day for women. In terms of creatinine excretion, the respective reference intervals were 0.55-1.99 and 0.70-1.96 mg per gram of creatinine.

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