Reproductive status in female perch (Perca fluviatilis) outside a sewage treatment plant processing leachate from a refuse dump

Noaksson, Erik; Linderoth, Maria; Gustavsson, Bodil; Zebühr, Yngve; Balk, Lennart

doi:10.1016/j.scitotenv.2004.08.010

Cited by 31 publications

(21 citation statements)

References 33 publications

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“…Some studies have shown that exposure of aqueous organisms in WWTP effluent or in the receiving waters could cause adverse effects, and fish reproductive anomalies in some rivers have been linked to the presence of various steroids in sewage effluents. [16][17][18] Therefore, it is crucial to understand the fate of different steroids in WWTPs to reduce potential negative impacts on organisms.…”

Section: Introductionmentioning

confidence: 99%

Occurrence and fate of androgens, estrogens, glucocorticoids and progestagens in two different types of municipal wastewater treatment plants

et al. 2012

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The occurrence and fate of fourteen androgens, four estrogens, five glucocorticoids and five progestagens were investigated in two different types of wastewater treatment plants (Plant A: activated sludge with chlorination, and Plant B: oxidation ditch with UV) of Guangdong province, China. 14, 14, and 10 of 28 target compounds were detected in the influent, effluent and dewatered sludge samples with the concentrations ranging from below 1.respectively. The concentrations of total androgens (1554-1778 ng L À1 in influent, 13.3-47.8 ng L À1 in effluent, 377-923 ng g À1 in dewatered sludge) were much higher than those of total estrogens (41.5-60.2 ng L À1 in influent, 5.6-13.5 ng L À1 in effluent, 13.9-57.8 ng g À1 in dewatered sludge), glucocorticoids (171-192 ng L À1 in influent, 2.2-6.3 ng L À1 in effluent, N.D.-4.4 ng g À1 in dewatered sludge), and progestagens (39.6-40.5 ng L À1 in influent, 6.9-12.1 ng L À1 in effluent, N.D. in dewatered sludge) in these two WWTPs. According to mass balance analysis, the removal rates of most target steroids in Plant A had exceeded 90%, while those in Plant B for nearly half of detected target steroids were lower than 80%. It is obvious that the treatment capacity of the activated sludge system (Plant A) is superior to the oxidation ditch (Plant B) in the degradation of steroids in sewage treatment systems. Androgens, estrogens and progestagens were mainly removed by sorption and degradation, while the reduction of glucocorticoids was primarily due to degradation.

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Section: Introductionmentioning

confidence: 99%

Occurrence and fate of androgens, estrogens, glucocorticoids and progestagens in two different types of municipal wastewater treatment plants

et al. 2012

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“…Com relação à caracterização hormonal de teleósteos, Poortenaar et al (2001) evidenciaram o aumento de concentração de E 2 nas fêmeas de Seriola lalandi lalandi durante a vitelogênese, o mesmo ocorreu para Anguilla japonica (Matsubara et al, 2005), Salmo salar (Lacroix et al, 1997), Perca fluviatilis (Noaksson et al, 2005), Acheilognathus rhombea (AIDA, 1988).…”

Section: Discussionunclassified

“…Em Cyprinus carpio, a T varia positivamente com a gonadotropina, sugerindo ter uma atuação na maturação final dos oócitos (Aida, 1988). Perca fluviatilis tem altas concentrações de T na desova e caem logo após (Noaksson et al, 2005). Em Seriola lalandi lalandi, as concentrações de T são maiores durante a vitelogênese e maturação final dos oócitos (Poortenaar, 2001).…”

Section: Discussionunclassified

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Aspectos reprodutivos e perfil hormonal dos esteróides sexuais do pirarucu, Arapaima gigas (SCHINZ,1822), em condições de cativeiro

et al. 2010

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RESUMOEsta pesquisa teve como objetivo caracterizar a reprodução e o perfil hormonal dos esteróides sexuais do pirarucu, Arapaima gigas, além de validar um aspecto do dimorfismo sexual secundário. O experimento foi realizado na Fazenda Santo Antônio II, em Presidente Figueredo-AM, no período de fevereiro de 2004 a fevereiro de 2005. Foram selecionados 24 exemplares e divididos em três grupos de oito peixes (grupo "A", "B" e "C" com pirarucus de mais de quatro anos de idade, com três anos e dois anos, respectivamente). Os pirarucus foram estocados em três tanques de 400m 2 , um para cada grupo. Aspectos comportamentais, como o interesse por alimento, brigas, formação de casais e presença de ninhos, foram observados ao longo de todo o experimento. Amostras de sangue foram coletadas mensalmente, de todos os peixes, observou-se a presença de uma mancha alaranjada no macho como uma característica sexual secundária. Foram mensurados os níveis de testosterona (T), 17beta-estradiol (E 2 ) e 17alfa-hidroxi-progesterona (17aOHP) através de radioimunoensaio (RIA) de fase sólida. Todos os machos dos grupos "A" e "B" puderam ser identificados pela mancha alaranjada na região inferior da cabeça, corroborada pela concentração de testosterona, comprovando o conhecimento empírico dos ribeirinhos. Os níveis de T e E 2 nos peixes do grupo "A" e "B" tiveram maiores picos no início do período de chuva, enquanto que o 17aOHP teve oscilações constantes e pequenos picos no final do período chuvoso, os peixes do grupo "C" acompanharam essa tendência em concentrações menores. PALAVRAS-CHAVE: pirarucu, reprodução, esteróides sexuais, Arapaima gigas. Reproductive Aspects and Sexual Steroids Hormonal Profiles of Pirarucu, Arapaima gigas (SCHINZ,1822), in Captivity Conditions ABSTRACTThe purpose of this study was to characterize the growth, reproduction and hormonal profile of pirarucu, Arapaima gigas, and validate one sexual dimorphism characteristic. The experiment was carried in the fish farm Santo Antonio II, Presidente Figueredo city in the state of Amazonas -Brazil, from February 2004 to February 2005 In the experiment, 24 fishes were selected and divided in three groups, with eight fish in each one. The pirarucus from "A" group were older than four years. In "B" group the fishes were three years old and in "C" group these were two years old. The pirarucus were stocked in 400 m 2 excavated ponds, one pond for each group. Reproductive behavior like feeding interest, fights, pair formation and presence of nest were observed. Blood samples were taken monthly from all fishes during the experiment period, the sexual dimorphism characteristic was observed. Testosterone (T), 17b-estradiol (E 2 ) and 17ahidroxi-progesterona (17aOHP) levels were measured by radioimunoassay (RIA) in solid phase. All males of group "A" and "B" could be identified by an orange mark under the head, and the levels of T validated this data, proving the empirical knowledge of river men. T and E 2 levels of group "A" and "B" picked in the beginning of raining period an...

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“…In various fishes shortly before the spawning the activity of hypothalamus hypophysis neurosecretory systems increases which is accompanied by secretion of neurohormones of preoptichypophyseal neurosecretory system to blood [1,2]. With blood current the hormones of hypophysis reach interrenal gland [66][67][68][69] stimulating release of various corticosteroids into blood [66][67][68][69][70][71] including cortisol [72][73][74][75][76][77][78][79][80].…”

Section: Dynamics Of Physiological-biochemical Parameters During the mentioning

confidence: 99%

Stress reaction in freshwater fish in response to extreme impacts and during the reproduction period

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Reproductive status in female perch (Perca fluviatilis) outside a sewage treatment plant processing leachate from a refuse dump

Cited by 31 publications

References 33 publications

Occurrence and fate of androgens, estrogens, glucocorticoids and progestagens in two different types of municipal wastewater treatment plants

Occurrence and fate of androgens, estrogens, glucocorticoids and progestagens in two different types of municipal wastewater treatment plants

Aspectos reprodutivos e perfil hormonal dos esteróides sexuais do pirarucu, Arapaima gigas (SCHINZ,1822), em condições de cativeiro

Stress reaction in freshwater fish in response to extreme impacts and during the reproduction period

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