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Ontogeny of immune system organs in northern bluefin tuna (Thunnus orientalis, Temminck and Schlegel 1844)


Watts, M and Kato, K and Munday, BL and Burke, CM, Ontogeny of immune system organs in northern bluefin tuna (Thunnus orientalis, Temminck and Schlegel 1844), Aquaculture Research, 34, (1) pp. 13-21. ISSN 1355-557X (2003) [Refereed Article]

DOI: doi:10.1046/j.1365-2109.2003.00779.x


Serial sections, prepared from 0.5 to 30 days post-hatch (dph) larval and juvenile Thunnus orientalis (Temminck & Schlegel 1844), were stained with haematoxylin and eosin and examined by light microscopy for immune organ development. The early kidney was present at 0.5 dph, undifferentiated stem cells began to appear at 2 dph, and by 7 dph occasional small lymphocytes were present. The thymus was first obvious at 5 dph, located above the fourth branchial arch, small lymphocytes appeared at 7 dph, and by 15 dph an outer thymocytic zone and an inner epithelioid zone were visible. The progenitor spleen was present at 2 dph, located close to the gut, and by 12 dph it consisted of a mass of sinusoids filled with red blood cells, and remained mainly erythroid throughout the period studied. These results suggest that development of immune organs in this species is precocious relative to other marine teleosts.

Item Details

Item Type:Refereed Article
Research Division:Agricultural, Veterinary and Food Sciences
Research Group:Fisheries sciences
Research Field:Aquaculture
Objective Division:Animal Production and Animal Primary Products
Objective Group:Fisheries - aquaculture
Objective Field:Fisheries - aquaculture not elsewhere classified
UTAS Author:Watts, M (Dr Marianne Watts)
UTAS Author:Munday, BL (Dr Barry Munday)
UTAS Author:Burke, CM (Dr Chris Burke)
ID Code:24196
Year Published:2003
Web of Science® Times Cited:14
Deposited By:TAFI - Aquaculture
Deposited On:2003-08-01
Last Modified:2011-09-20

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