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Small-scale capture, transport and tank adaptation of live, medium-sized Scombrids using “Tuna Tubes”
Journal article   Open access   Peer reviewed

Small-scale capture, transport and tank adaptation of live, medium-sized Scombrids using “Tuna Tubes”

Ido Bar, Luke Dutney, Peter Lee, Ryosuke Yazawa, Goro Yoshizaki, Yutaka Takeuchi, Scott F Cummins and Abigail Elizur
SpringerPlus, Vol.4(604)
2015
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PDF - Published Version (Open Access)2.61 MBDownloadView
Published VersionPDF - Published Version (Open Access)CC BY V4.0 Open Access
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https://doi.org/10.1186/s40064-015-1391-yView
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Abstract

aquaculture broodstock euthynnus affinis live fish transport pelagic fish scombridae tuna tubes
The transport of live fish is a crucial step to establish fish culture in captivity, and is especially challenging for species that have not been commonly cultured before, therefore transport and handling methods need to be optimized and tailored. This study describes the use of tuna tubes for small-scale transport of medium-sized pelagic fish from the Scombridae family. Tuna tubes are an array of vertical tubes that hold the fish, while fresh seawater is pumped up the tubes and through the fish mouth and gills, providing oxygen and removing wastes. In this study, 19 fish were captured using rod and line and 42 % of the captured fish were transported alive in the custom-designed tuna tubes to an on-shore holding tank: five mackerel tuna (Euthynnus affinis) and three leaping bonito (Cybiosarda elegans). Out of these, just three (15.8 % of total fish) acclimatized to the tank's condition. Based on these results, we discuss an improved design of the tuna tubes that has the potential to increase survival rates and enable a simple and low cost method of transporting of live pelagic fish.

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Fisheries
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