METHOD OF DETERMINING STRESS TO FISH, METHOD OF REDUCING STRESS TO FISH, AND MODEL FOR DETERMINING STRESS TO FISH

To provide a method of determining stress to fish, capable of visually detecting that a group of fish in a water tank or a fish preserve or a part of the group is in a stressed state by instantaneous, continuous and reversible body color abnormality in an initial stage of stress response, and capabl...

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Bibliographic Details
Main Authors MATSUBARA SO, SUZUKI NOBUO, OGISO SHOZO, SHIGEMATSU ATSUSHI, NAGAMI ARATA
Format Patent
LanguageEnglish
Japanese
Published 26.02.2024
Subjects
AGRICULTURE
ANIMAL HUSBANDRY
CARE OF BIRDS, FISHES, INSECTS
FISHING
FORESTRY
HUMAN NECESSITIES
HUNTING
NEW BREEDS OF ANIMALS
REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR
TRAPPING
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Summary:To provide a method of determining stress to fish, capable of visually detecting that a group of fish in a water tank or a fish preserve or a part of the group is in a stressed state by instantaneous, continuous and reversible body color abnormality in an initial stage of stress response, and capable of numerically evaluating and objectively evaluating the stressed state by the reversible body color abnormality.SOLUTION: The method of determining stress to fish determines that the fish is in a stress-loaded state by detecting reversible body color abnormality appearing on the body surface of the fish regardless of imitation, warning, or malformation.SELECTED DRAWING: Figure 1 【課題】水槽や生け簀の一群又はその一部の魚類が、ストレス応答の初期段階である瞬発的に持続的で可逆的な体色異常によりストレス負荷状態であることを視覚的に検知でき、またその可逆的な体色異常によってストレス負荷状態を数値化し客観的に評価できる魚類ストレス判定方法を提供する。【解決手段】擬態・警告・奇形に因らずに魚類の体表に現れる可逆的な体色異常を検知することにより、前記魚類がストレス負荷状態にあることを判定することを特徴とする魚類ストレス判定方法により解決する。【選択図】図１
Bibliography:Application Number: JP20220128908