2024-03-28T19:57:13Z
https://nagoya.repo.nii.ac.jp/oai
oai:nagoya.repo.nii.ac.jp:00020980
2023-01-16T04:10:10Z
488:489:490
Effect of the Anesthetic Agent MS-222 on the Attachment Performance and Metamorphosis Success of Glochidial Larvae in Anodonta Japonica (Unionidae:Anodontinae)
タガイ幼生の寄生能力及び変態成功に対する麻酔薬の影響
秋山, 吉寛
60722
水野, 真希
60723
白井, 正樹
60724
夏原, 由博
60725
Akiyama, Yoshihiro B.
60726
Mizuno, Maki
60727
Shirai, Masaki
60728
Natuhara, Yoshihiro
60729
MS-222
glochidal viability
parasitic rate
host fish
Gymnogobius urotaenia
We examined the effects of the anesthetic agcnt MS-222 on glochidial viability in Anodonta japonica, the parasitization rate of thc glochidia on thc host fish Gymnogobius urotaenia and the metamorphosis rate into juveniles in vitro. Snap frequency of the glochidial valves decreased with an incrcase in MS-222 concentration. Likewise, parasitization success of the larvae on thc gills of G. urotaenia was reduced when thc host fish was exposed to an MS- 222 solution (150 mg^-1L) for five minutes prior to introducing the glochidia to the fish. Metamorphosis succcss (juveniles/free-living larvae ratio) was reduced by 50% when the host fish was anesthetized with MS-222, though thc effect of the anesthetic agent was not detectable statistically. These suggest that glochidial viability and parasitization rate data obtained from previous studies using MS-222 may have contained an artifact.Therefore, future studies on the parasite-host relationship between unionid glochidia and host flshes when MS-222 is used should consider the effect of the anesthetic agent on unionid glochidia.
journal article
日本貝類学会(Malacological Society of Japan)
2014-03
application/pdf
Venus : journal of the Malacological Society of Japan
1-4
72
123
130
http://hdl.handle.net/2237/23079
1348-2955
https://nagoya.repo.nii.ac.jp/record/20980/files/akiyama_et_al_2014.pdf
jpn
(C)日本貝類学会。利用は著作権の範囲内に限られる