Oxitetraciclina para marcação química de juvenis de piava Leporinus obtusidens: determinação de doses e duração do tratamento
Palavras-chave:
escama, marcação maciça, estruturas calcificadasResumo
O objetivo deste estudo foi definir concentrações e tempos de imersão para a marcação química de juvenis de Leporinus obtusidens por meio de oxitetraciclina (OTC). Foram utilizados 20 juvenis por tratamento, submetidos a banhos com seis concentrações de OTC (50, 100, 150, 300, 500, 800 mg L-1) e três tempos de imersão (6, 12, 24 h) mais um tratamento controle. Escamas de três indivíduos por tratamento foram avaliadas em microscópio confocal com luz UV. Os valores médios de temperatura, pH e OD mantiveram-se em 27,4°C; 7,2 e 7,4 mg L-1, respectivamente. Em nenhum dos tratamentos foi observada mortalidade. A presença da marca só foi observada a partir do tratamento 100 mg L-1 24 h-1, sendo de fraca intensidade. Os tratamentos com 12 e 24 h produziram marcas visíveis para 300 mg L-1 e fortemente visíveis e contínuas para 500 mg L-1. Nos tratamentos com 800 mg L-1, todos os tempos de exposição produziram marcas fortemente visíveis e contínuas.
Referências
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IGLESIAS, J. e RODRÍGUES-OJEA. G. 1997 The use of alizarin complexone for immersion marking of the otoliths of embryos and larvae of the turbot, Scophthalmus maximus (L.): dosage and treatment time. Fisheries Management and Ecology,4: 405-417.
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BARKER, J.M. e MCKAYE, K.R. 2004 Immersion marking of juvenile Midas cichlids with
oxytetracycline. North American Journal of Fisheries Management, 24: 262-269.
BLANKENSHIP, H.L. e LEBER, K.M. 1995 A responsible approach to marine stock
enhancement. American Fisheries Society Symposium, 15: 167-175.
BROOKS, R.C.; HEIDINGER, R.C.; KOHLER, C.C.1994 Mass-marking otoliths of larval and juvenile walleyes by immersion in oxytetracycline, calcein, or calcein blue. North
American Journal of Fisheries Management, 14: 143-150.
BUTCHER, A.; MAYER, D.; WILLETT, D.;JOHNSTON, M.; SMALLWOOD, D. 2003 Scale
pattern analysis is preferable to OTC marking of otoliths for differentiating between stocked and wild dusky flathead, Platycephalus fuscus, and sand whiting, Sillago ciliate. Fisheries Management and Ecology, 10: 163-172.
CRUMPTON, R.L.; HENNE, J.P.; WARE, K.M. 2012 Marking otoliths and fin spines of juvenile shortnose sturgeon with oxytetracycline and the effects of water temperature during treatment. North American Journal of Fisheries Management,
32: 523í 527.
FIELDER, D.G. 2002 Methodology for immersion marking walleye fry and fingerlings in oxytetracycline hydrochloride and its detection with fluorescence microscopy. Michigan Department of Natural Resources/Fisheries Technical Report.23p.
IGLESIAS, J. e RODRÍGUES-OJEA. G. 1997 The use of alizarin complexone for immersion marking of the otoliths of embryos and larvae of the turbot, Scophthalmus maximus (L.): dosage and treatment time. Fisheries Management and Ecology,4: 405-417.
JENKINS, W.E.; DENSON, M.R.; BRIDGHAM, C.B.;COLLINS, M.R.; SMITH, T.I.J. 2002 Retention of oxytetracycline-induced marks on sagittae of red drum. North American Journal of Fisheries Management, 22: 590í 594.
LEAL, M.E.; BARBOSA, A.S.; SCHULZ, U.H. 2012 Uso de Implante Visual Fluorescente de Elastômero (VIFE) na marcação de pequenos peixes de água doce. Biotemas, 25(3): 311-315.
LOCHET, A.; JATTEAU, P.; GESSNER, J. 2011 Detection of chemical marks for stocking
purposes in sturgeon species. Journal of Applied Ichthyology, 27: 444-449.
MEERBEEK, J.R. e BETTOLI, P.W. 2005 MassMarking Rainbow Trout and Brown Trout
Fingerlings with Oxytetracycline. Journal of Freshwater Ecology, 20(3): 555-559.
MORALES-NIN, B.; GRAU, A.; PÉREZ-MAYOL, S.;PASTOR, E.; PALMER, M. 2011 Oxytetracycline hydrochloride vital labelling revisited: the case of Dicentrarchus labras and Diplodus puntazzo.Journal of Fish Biology, 78: 762-782.
REIS, R.E.; KULLANDER, S.O.; FERRARIS-JR, C.J. 2003 Check list of the freshwater fishes of South and Central America. Porto Alegre:EDIPUCRS. 742p.
REYNALTE-TATAJE, D.A. e ZANIBONI-FILHO, E. 2010 Cultivo do gênero Leporinus. In:
BALDISSEROTTO, B. e GOMES, L.C. (org.) Espécies nativas para a piscicultura no Brasil. Santa Maria, Editora UFSM. p.81-103.
TAYLOR, M.D.; FIELDER, D.S.; SUTHERS, I.M. 2005 Batch marking of otoliths and fin spines to assess the stock enhancement of Argyrosomus japonicas. Journal of Fish Biology, 66: 1149-1162.
WARTENBERG, R.; BOOTH, A.J.; WEYL, O.L.F.2011 A comparison of three techniques for fluorocrhome marking of juvenile Clarias gariepinus otoliths. African Zoology, 46(1): 72-77.
XU, D. e ROGERS, W.A. 1994 Oxytetracycline residue in striped bass muscle. Journal of Aquatic Animal Health, 6: 349-354.
ZANIBONI-FILHO, E. 2004 Piscicultura das espécies nativas de água doce. In: POLI, C.R.; POLI,A.T.B.; ANDREATTA, E.; BELTRAME, E. (org.)Aquicultura: Experiências brasileiras. Florianópolis,Ed. UFSC. p.337-368.
ZANIBONI-FILHO, E. e SCHULZ, U.H. 2003 Migratory fishes of the Uruguay River. In:
CAROLSFELD, J.; HARVEY, B.; BAER, A.; ROSS, C. (eds.) Migratory fishes of the South
America: biology, social importance and conservation status. Canada, IDRC/World Bank/World Fisheries Trust. p.135-168.
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Publicado
2018-11-16
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Nota científica (Short Communication)
