Elevage des larves et juvéniles de corégone (Coregonus lavaretus sp.) en cages lacustres éclairées pour l'attraction du zooplancton

1996 ◽  
Vol 8 ◽  
pp. 155-172 ◽  
Author(s):  
Alexis Champigneulle ◽  
Ricardo Rojas Beltran
Keyword(s):  
Coregonus Lavaretus

Effects of Pulp and Paper Mill Effluents on Reproduction, Bile Conjugates and Liver MFO (Mixed Function Oxygenase) Activity in Fish at Southern Lake Saimaa, Finland

1999 ◽  
Vol 40 (11-12) ◽  
pp. 109-114 ◽  
Author(s):  
Aarno Karels ◽  
Markus Soimasuo ◽  
Aimo Oikari
Keyword(s):  
Endocrine Disrupting Compounds ◽  
Paper Mill ◽  
Erod Activity ◽  
Pulp And Paper ◽  
Coregonus Lavaretus ◽  
Pulp And Paper Mill ◽  
Paper Mill Effluents ◽  
Mixed Function Oxygenase ◽  
Estradiol 17Β ◽  
Lake Saimaa

Reproductive indices like gonad size, fecundity, egg size and sex steroid levels of estradiol-17β and testosterone, vitellogenin in the blood as well as bile conjugates and liver 7-ethoxyresorufin O-deethylase (EROD) activity were studied in populations of perch (Perca fluviatilis L.) and roach (Rutilus rutilus L.) and experimentally exposed juvenile whitefish (Coregonus lavaretus L. s.l.) at the Southern Lake Saimaa (S.E. Finland). Our studies showed that the introduction of elemental chlorine free (ECF) bleaching and secondary treatment of effluents in a modern activated sludge plant at the mill in 1992 have substantially reduced the exposure of feral and caged fish to organochlorines. The liver EROD activity was noticeably lower in feral and caged fish near the mill indicating lesser impacts on the liver mixed function oxygenase (MFO) system. However, at the mill site, liver EROD activies in feral and caged fish still tend to be one to four times higher than at the reference sites. Significantly decreased plasma estradiol-17β and testosterone concentrations in perch and roach in the period of development of the gonads (autumn and winter) indicate that there were endocrine disrupting compounds present in the lake receiving ECF pulp and paper mill effluents. Cause-effect relationships, however, are difficult to establish.

miR-34a and bcl-2 expression in whitefish (Coregonus lavaretus) after microcystin-LR exposure

2016 ◽  
Vol 193 ◽  
pp. 47-56 ◽  
Author(s):  
Alicja Łakomiak ◽  
Paweł Brzuzan ◽  
Ewa Jakimiuk ◽  
Maciej Florczyk ◽  
Maciej Woźny
Keyword(s):  
Coregonus Lavaretus

Critical partial pressures of oxygen causing precocious hatching in Coregonus lavaretus and C. albula embryos

Aquaculture ◽  
2001 ◽  
Vol 196 (1-2) ◽  
pp. 151-158 ◽  
Author(s):  
Piotr Czerkies ◽  
Pawel Brzuzan ◽  
Krzysztof Kordalski ◽  
Miroslaw Luczynski
Keyword(s):  
Coregonus Lavaretus ◽  
Partial Pressures
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