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Effectiveness Of The Anesthetic Aqui-S® 20e In Marine Finfish And Elasmobranchs


, : Effectiveness Of The Anesthetic Aqui-S® 20e In Marine Finfish And Elasmobranchs. Journal of Wildlife Diseases 52(2 Suppl): S96-103

Immersion anesthetics are used in hatchery settings by veterinarians, field biologists, and laboratory researchers to aid in handling finfish for medical procedures, research purposes, and moderating perceived stress responses. The only Food and Drug Administration- (FDA) approved anesthetic for food fish, tricaine methanesulfonate, requires a 21-d withdrawal period prior to harvest. Ten percent eugenol (AQUI-S® 20E) has been gaining momentum for FDA approval because of its 0-d withdrawal time if fish are not of harvestable size within 72 h of exposure. We performed two trials to determine appropriate anesthetic doses for two cultured marine finfish: Atractoscion nobilis (white seabass, WSB) and Seriola lalandi (California yellowtail, YT). Fish were held in a treated water bath for 10 min or until opercular beat rate slowed to a rate of <2 beats/min. Based on these results, we conducted a field trial with wild Paralabrax maculatofasciatus (spotted bay bass), Paralabrax nebulifer (barred sand bass), Paralichthys californicus (California halibut), Triakis semifasciata (leopard shark), and Mustelus californicus (grey smooth-hound) at a single dosing regime, with animals held 5-10 min in anesthetic baths. Anesthetic dosing of 35-55 mg L(-1) provided relatively fast induction and good anesthetic maintenance in cultured and wild finfish. Anesthetic induction times were comparable among S. lalandi and A. nobilis at 35-mg L(-1) to 75-mg L(-1) doses, but recovery times were variable. Mortality rates of 20-90% were observed at higher doses (75 mg L(-1) and 100 mg L(-1), A. nobilis; 55 mg L(-1) and 75 mg L(-1), S. lalandi). The apparent increase in sensitivity of S. lalandi may have been associated with nutritional stress in the fish tested. There were no differences in time to anesthesia or recovery among wild finfish species tested at a single dose. Anesthetic induction, maintenance, and recovery were less predictable in the elasmobranch species tested and additional trials are needed to determine optimal dosing.

US$19.90

PMID: 26845304

DOI: 10.7589/52.2S.S96


Other references

Izumi, M.; Miyazawa, H.; Yatagai, F.; Hanaoka, F., 1996: Cell cycle-dependent transcription of the mouse DNA polymerase alpha gene. Cell Structure & Function 21(6): 657

Deĭneka, S.E.; Khlus, K.N., 1992: Metal stearates--some aspects of their toxicodynamics. Gigiena i Sanitariia: 20-23

Mintz-Oron, S.; Mandel, T.; Rogachev, I.; Feldberg, L.; Lotan, O.; Yativ, M.; Wang, Z.; Jetter, R.; Venger, I.; Adato, A.; Aharoni, A., 2008: Gene expression and metabolism in tomato fruit surface tissues. The cuticle, covering the surface of all primary plant organs, plays important roles in plant development and protection against the biotic and abiotic environment. In contrast to vegetative organs, very little molecular information has been obta...

Scheper, W.; Hufschmidt, K., 1985: Changes in the area of land used for agriculture and in average farm size in the period 1966-83. Data analyzed and discussed include changes in: owned and rented land farmed in the individual GFR Lander in 1966, 1975 and 1983 and percentage reductions in both categories; the number of farms; prices for farmland which continued in farm use and...

Dumler, F.; Rocher, L.L.; Greenberg, L.A.; Frikker, M.J.; Threlkeld, R.R.; Gotaas, K.A., 1994: Impact of donor age on immediate graft function in cadaveric renal transplants. Journal of the American Society of Nephrology 5(3): 1001

Knitz, J.C.; Hoelzle, L.E.; Affolter, P.; Hamburger, A.; Zimmermann, K.; Heinritzi, K.; Wittenbrink, M.M., 2003: Humorale Immunantwort von Zuchtsauen nach Impfung mit einer stallspezifischen Chlamydophila abortus-Vakzine. A chlamydial vaccine efficacy trial with assessment of the clinical acceptability and serum antibody responses was performed in breeding sows. A BGM cell culture derived vaccine containing 108/ml formalin-inactivated purified elementary bodies (Eb...

Anonymous, 2010: Density and temperature profiles retrieving from direct solar Lyman-alpha radiation measurements. The resonance transition <sup>2</sup>P-<sup>2</sup>S of the atomic hydrogen (Lyman-alpha emission) is the strongest and most conspicuous feature in the solar EUV spectrum. The Lyman-alpha radiation transfer depends on the r...

Danielsen A., 1984: Rafflesia arnoldii the largest flower in the world. Blyttia 42(4): 173-176

Gal S., 1989: Soil working machine us patent 4856597 august 15 1989. Official Gazette of the United States Patent & Trademark Office Patents 1105(3): 1554

Allen A.A., 1989: Records of three notable lathridiidae coleoptera. Entomologist's Monthly Magazine 125(1496-1499): 79