Dossier:
not provided by us yet
WelfareCheck:
F (2022-09-20)
Advice:
not provided by us yet
Profile status
Taxonomy
Ethograms
In the wild:
not investigated by us yet
Farm/lab:
not investigated by us yet
Catch/lab:
not investigated by us yet
Habitat
Growth
Swimming
Reproduction
Nest building:
no data found yet
Courtship:
no data found yet
Mating type:
no data found yet
Brood care:
no data found yet
Social behaviour
Handling
Farming remarks
Tachysurus dumerili is a demersal and nocturnal catfish species that lives in rivers of eastern China and western Korea. Culture of T. dumerili became popular in China due to its high market value and a rapid declining of the natural population, affected by overfishing, environmental pollution, and habitat fragmentation. Efforts have been put in researching nutritional parameters and genetics of T. dumerili.
However, there is a reported lack of data on broodstock management, captive breeding, and larval rearing techniques. Additionally, there is a lack of English literature on T. dumerili's natural habitat and behaviour in the wild. T. dumerili is very aggressive while in captivity and has been reported to be stressed by handling, which are unfavourable welfare parameters for cultivated species. The most probable slaughter technique used for T. dumerili is ice slurry. Therefore, an alternative high-standard slaughter method needs to be researched for this species.
For details see: WelfareCheck | farm (latest major release: 2022-09-20)
Related news
2022-12-19: New episodes of FishEthoBase podcast programme
The last series of the year (series 11) for FishTalk, FishEthoGroup's podcast, features three catfishes, even if from different families. Yellow catfish (Tachysurus sinensis), Chinese longsnout catfish (Tachysurus dumerili), and Black bullhead catfish (Ameiurus melas) are all nocturnal. Another thing they have in common is that further research is needed on behaviour in the wild to make the best possible recommendations for the farming environment. Of the three, A. melas has slightly better potential to experience high welfare in captivity, for it does not seem to migrate and be aggressive. Further research is needed, however. Other than that, the FishEthoScore is very low - even more so in T. sinensis and T. dumerili. Find out more in their short profiles.
2022-10-12: New species profile: Tachysurus dumerili
Tachysurus dumerili, Chinese longsnout catfish, is a species with a lot of question marks. What we know is that it is a demersal nocturnal catfish, but data on home and depth range, migration, reproduction, aggregation, and malformations is missing. A tendency towards aggression and sensitivity to stress are unfavourable for aquaculture, and a high-standard slaughtering protocol needs to be verified for T. dumerili. For the details, please explore the Overview and the Short profile.
«