Administration of tetrodotoxin protects artificially raised juvenile tiger puffer Takifugu rubripes from predators

We examined the effects of tetrodotoxin (TTX) administration on artificially raised tiger puffer Takifugu rubripes juvenile survival after release into a mesocosm with predators to clarify the ecological significance of TTX. Pellets containing three different concentrations of TTX [0 as the control,...

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Bibliographic Details
Published in:Fisheries science 2017-03, Vol.83 (2), p.191-197
Main Authors: Sakakura, Yoshitaka, Takatani, Tomohiro, Nakayasu, Junichi, Yamazaki, Hideki, Sakiyama, Kazutaka
Format: Article
Language:English
Subjects:
Animal tissues
Biomedical and Life Sciences
Diet
Education
Fish
Fish & Wildlife Biology & Management
Fisheries
Fishery sciences
Food Science
Freshwater & Marine Ecology
Invertebrates
Lateolabrax
Life Sciences
Neurotoxicity
Original Article
Predation
Predators
Research centers
Skin
Studies
Takifugu rubripes
Toxicity
Toxins
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Summary:We examined the effects of tetrodotoxin (TTX) administration on artificially raised tiger puffer Takifugu rubripes juvenile survival after release into a mesocosm with predators to clarify the ecological significance of TTX. Pellets containing three different concentrations of TTX [0 as the control, 7 and 14 mouse units (MU)/g diet] were fed to non-toxic artificially raised T. rubripes juveniles for 10 days. TTX accumulation in the various tissues of fish was detected except for in the control diet group. TTX administration did not affect survival or growth of the fish. One hundred fish from each diet group were released together after TTX administration into a salt pond mesocosm (2650 m 2 ) with predators ( Lateolabrax sp.) for 5 days. Survival after release was significantly higher in both the fish fed with the 7 MU TTX/g diet (62%) and the 14 MU TTX/g diet (74%) than in the control fish (32%).
ISSN:0919-9268
1444-2906
DOI:10.1007/s12562-016-1046-0