淡水渔业
淡水漁業
담수어업
Freshwater Fisheries
2015年
6期
102-107
,共6页
陈冬明%刘小红%黄自豪%王志坚
陳鼕明%劉小紅%黃自豪%王誌堅
진동명%류소홍%황자호%왕지견
电刺激%繁殖%稀有%鲫(Gobiocypris rarus)
電刺激%繁殖%稀有%鯽(Gobiocypris rarus)
전자격%번식%희유%즉(Gobiocypris rarus)
electrical stimulation%reproduction%Gobiocypris rarus
通过对性成熟的稀有鲫（Gobiocypris rarus）亲鱼进行电刺激，观察电刺激对其繁殖的影响。控制水域电压为75 V，电流280 mA，持续电刺激5500 ms 左右，电刺激的作用强度是使鱼既能达到休克昏迷状态又能在几分钟内苏醒。结果表明，电刺激会造成雌鱼不产卵，或产出的卵颜色泛白；电刺激3次使雌鱼的产卵量显著减少74粒（P ＜0.05）；电刺激5次使雌鱼的产卵周期显著延长10.2d（P ＜0.05），产卵量显著减少80粒（P ＜0.05）；电刺激1次使雄鱼的受精率显著提高15％（P ＜0.05）。通过组织切片观察发现，电刺激对雌鱼卵巢中的卵细胞造成了不同程度的损坏，且电刺激次数越多，损坏程度越大，而电刺激对雄鱼精巢没有造成影响。因此，成鱼阶段电刺激对稀有鲫雌鱼的繁殖具有不利影响，而对稀有鲫雄鱼的繁殖具有促进作用。
通過對性成熟的稀有鯽（Gobiocypris rarus）親魚進行電刺激，觀察電刺激對其繁殖的影響。控製水域電壓為75 V，電流280 mA，持續電刺激5500 ms 左右，電刺激的作用彊度是使魚既能達到休剋昏迷狀態又能在幾分鐘內囌醒。結果錶明，電刺激會造成雌魚不產卵，或產齣的卵顏色汎白；電刺激3次使雌魚的產卵量顯著減少74粒（P ＜0.05）；電刺激5次使雌魚的產卵週期顯著延長10.2d（P ＜0.05），產卵量顯著減少80粒（P ＜0.05）；電刺激1次使雄魚的受精率顯著提高15％（P ＜0.05）。通過組織切片觀察髮現，電刺激對雌魚卵巢中的卵細胞造成瞭不同程度的損壞，且電刺激次數越多，損壞程度越大，而電刺激對雄魚精巢沒有造成影響。因此，成魚階段電刺激對稀有鯽雌魚的繁殖具有不利影響，而對稀有鯽雄魚的繁殖具有促進作用。
통과대성성숙적희유즉（Gobiocypris rarus）친어진행전자격，관찰전자격대기번식적영향。공제수역전압위75 V，전류280 mA，지속전자격5500 ms 좌우，전자격적작용강도시사어기능체도휴극혼미상태우능재궤분종내소성。결과표명，전자격회조성자어불산란，혹산출적란안색범백；전자격3차사자어적산란량현저감소74립（P ＜0.05）；전자격5차사자어적산란주기현저연장10.2d（P ＜0.05），산란량현저감소80립（P ＜0.05）；전자격1차사웅어적수정솔현저제고15％（P ＜0.05）。통과조직절편관찰발현，전자격대자어란소중적란세포조성료불동정도적손배，차전자격차수월다，손배정도월대，이전자격대웅어정소몰유조성영향。인차，성어계단전자격대희유즉자어적번식구유불리영향，이대희유즉웅어적번식구유촉진작용。
Under the artificial control of waterborne electric stimulation (75 V, 280 mA, 5500 ms), which made the fish to be shock or coma, and to be reviving in a few minutes , we detected the effects on reproduction capable of mature Gobio-cypris rarus in order to provide basic data for the fishery department to evaluate the behavior of electric fishing and refer -enced basis for studying the effect of electrical stimulation on reproduction of fish .The results showed that electrical stimula-tion caused females un-spawned or laying of white eggs.Electrical stimulation of three times significantly decreased the egg laying amount to 74 (P <0.05).Electrical stimulation of five times significantly prolonged the spawning period to 10.2 days (P <0.05), and the egg laying amount was significantly decreased to 80 (P <0.05) as well.Electrical stimulation of one time caused the fertilization rate of male individuals significantly increased by 15 percent (P <0.05).Using histo-logical method, varying degree of damage on the ovary was observed , and more stimulation times given, more damage was detected.But there was no effect on the testis of male in histology for the electrical stimulation .Thus, we speculate that, the effect of electrical stimulation on mature G.rarus was gender specific.The reproduction of males could benefit from the stimulation, while that of females were damaged .
