Here are some instruction PLEASE
me figure out how much to use.
Finquel Aquatic Anesthetic
*Finquil is intended for the temporary immobilization of fish, amphibians, and other aquatic cold-blooded animals. It has been long recognized as a valuable tool for the proper handling of these animals during manual spawning, weighting, measuring, marking, surgical operations, transport, photography, and research.
Warnings:
Do not use within 21 days of harvesting fish for food.
When used for food fish, use should be restricted to Ictaluridae, Salmonidae, Esocidae, and Percidae and water temperature should exceed 10° C (50° F).
In other fish and cold-blooded animals (poikilotherms) Finquil should be limited to hatchery or laboratory use.
Chemistry:
Finquil is the methanesulfonate of meta-amino benzoic acid ethylester, or simply ethyl m-amino benzoate. It is thus an isomer of benzocaine having the formula C9H11O2N + CH3SO3H.
Finquil is a fine white crystalline powder. Its molecular weight in 261.3. Soluble to 11%, it forms clear, colorless, acid solutions in water.
Directions:
Finquil is effective and safe for the anesthesia of fish when used as directed. Its use is governed by, and can be tailored to, the needs of individual fishery personnel. Sedation and various rates of anesthetization are controlled by the concentration. The action of the anesthetic is slowed at cooler temperatures, in extremely soft water (approximately 10 mg./liter of CaCo3 or less), and in larger fish.
The following table may be used as guidelines in selecting concentrations of Finquil for the anesthetization of various fish. It is imperative that preliminary tests of anesthetic solutions be made against small numbers of fish to determine the desired rates of anesthesia and exposure time for the specific lots of fish under prevailing conditions.
Concentrations Required for Rapid Anesthesia:
Fish Water
Temperature Concentration
(mg./liter) Maximum Tolerated
Exposure Time
(minutes)
Salmonidae
(Pacific and
Atlantic salmon;
Trout; Chars; etc) 7-17°C
(45-63°F) 80-135 4-12
Esocidae
(Northern pike;
muskellunge) 8-12°C
(46-54°F) 150 8-28
Cyprinidae
(Carp; goldfish) 16°C
(61°F) 150-200 NA
Ictaluridae
(Channel catfish) 7-27°C
(45-81°F) 140-270 4-11
Centarchidae
(Bluegill;
largemouth bass) 10-27°C
(50-81°F) 260-330 3-5
Percidae
(Walleye) 10-16°C
(50-61°F) 100-120 7-18
Pet and Tropical
Livebearers 24-27°C
(75-81°F) 85 12 hrs.
Pet and Tropical
Egg layers 24-27°C
(75-81°F) 75 12 hrs.
Concentrations Required for Sedation
(Induction within 15 minutes: used in fish transport)
Fish Water
Temperature Concentration
(mg./liter) Maintenance
of Sedation
(hours)
Salmonidae
(Pacific and
Atlantic salmon;
Trout; Chars; etc) 7-17°C
(45-63°F) 15-30 6
Esocidae
(Chain pickerel) NA 40 NA
Ictaluridae
(Channel catfish) 7-27°C
(45-81°F) 20-40 6
Centrarchidae
(Bluegills) NA 25 8-13
Pet and Tropical
(Bettas, Piranhas) 24-27°C
(75-81°F) 66 48
Pet Goldfish 24-27°C
(75-81°F) 37 48
Important: Since, in many cases, relatively rapid rates of anesthesia can be achieved only by exceeding the lethal concentration of Finquil, it is necessary to return anesthetized fish to fresh water before they are overexposed. Excessive exposures are avoided by observing the following sensory and motor responses of the fish, which characterize progressively deeper levels of anesthesia:
Sedation - Decreased reactivity to visual and vibrational stimuli; opercular activity reduced.
Total loss of equilibrium - Fish turns over; locomotion ceases; fish swims or extends fin in response to pressure on caudal fin or peduncle.
Total loss of reflex - No response to pressure on caudal fin or peduncle; opercular rate slow and erratic.
Medullary collapse - Opercular activity ceases.
*Laboratory and field investigations have shown that the action of Finquil is readily reversed when fish are transferred to freshwater before opercular activity ceases. Additional exposure following medullary collapse may result in mortality.
Water
Since Finquil is very soluble (1:9) in water, it dissolves with equal readiness in spring water, tap water, or seawater. Do not use distilled or deionized water, or water containing chlorine, heavy metals (copper, zinc, etc) or other toxic contaminants. The anesthetic solution should be well oxygenated, and its temperature should be similar to that of the water from which the \fish a re taken.
Methods of Application
General anesthesia: For most situations where rapid or moderately rapid anesthesia is require, Finquil may be applied in a bath, i.e. the fish are immersed in the anesthetic solution. Containers may be of glass, plastic, steel, aluminum, or other suitable material. However DO NOT USE galvanized or brass containers unless treated or sealed to prevent dissolution of zinc. Size of container is determined by individual needs, but the fish should not be overcrowded. Discard anesthetic solutions when a loss in potency is noted, or when the solutions become fouled with mucus or excrement.
Precautions:
Avoid inhaling Finquil or getting into eyes.
Always conduct preliminary tests with Finquil to determine desired rates of anesthesia and optimal length of exposure.
Do not overexpose fish to lethal levels of Finquil.
Do not anesthetize more fish than can be handled effectively.
Do not contaminate eggs or sperm with Finquil when stripping fish.
Do not use water containing chlorine, or other toxic agents.
Insure adequate oxygen in anesthetic solution.
Discard anesthetic solutions when fouled with mucus of metabolic wastes.
Do not discard Finquil solution into water supplies or natural waters.
Store Finquil solutions in a cool place away from light.
Discard stock solutions of Finquil after several days.
Treated fish destined for food must be held in fresh water above 10° C (50 °F) for 21 days before use.
IRECTIONS FOR USE ON FISH CONCENTRATIONS
scissors in hand. I just need to figure out how much Finquel to use. I plan on following this link.
