2011
DOI: 10.1590/s1984-46702011000400003
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Reproductive cycle of Branchiura sowerbyi (Oligochaeta: Naididae: Tubificinae) cultivated under laboratory conditions

Abstract: ABSTRACT. The biology of Branchiura sowerbyi Beddard, 1892 has been the focus of many studies in temperate regions, where the species is exotic, according to literature data. Due to its high productivity and easy cultivation, B. sowerbyi is of great interest as a food source for fish farming. The present study reports information on the reproductive biology and growth of B. sowerbyi under laboratory conditions at 25 ± 1°C. Weekly observations during 52 weeks indicated that the time between cocoon laying and yo… Show more

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Cited by 8 publications
(9 citation statements)
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References 29 publications
(33 reference statements)
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“…This agrees with our findings here, which showed that more than 80% of the young specimens hatched within 8 to 12 days after the cocoon was laid. This period is shorter than that observed for B. sowerbyi (14 to 16 days) under similar temperature conditions (NASCIMENTO & ALVES 2008, LOBO & ALVES 2011. ASTON (1973) observed that L. hoffmeisteri is capable of developing from an embryo to a mature individual in less than five weeks.…”
Section: Discussionmentioning
confidence: 58%
“…This agrees with our findings here, which showed that more than 80% of the young specimens hatched within 8 to 12 days after the cocoon was laid. This period is shorter than that observed for B. sowerbyi (14 to 16 days) under similar temperature conditions (NASCIMENTO & ALVES 2008, LOBO & ALVES 2011. ASTON (1973) observed that L. hoffmeisteri is capable of developing from an embryo to a mature individual in less than five weeks.…”
Section: Discussionmentioning
confidence: 58%
“…Kemudian yaitu dari jenis Branchiura sowerbyi pada Sungai Badung sebanyak 10 % dan Sungai Mati sebanyak 32% dengan total jumlah jenisnya yaitu 86 spesies, Branchiura sowerbyi merupakan cacing Tubificidae yang biasa ditemukan pada lingkungan air tawar yang kaya akan bahan organik terdapat didaerah tropic dan daerah yang beriklim sedang (Lobo & Alves, 2011). Branchiura sowerbyi juga cacing yang terdistribusi secara luas dan hampir terdapat di seluruh dunia, cacing tersebut biasanya hidup pada perairan tenang dengan tipe substrat lumpur dan mampu bertahan dengan kondisi pH dan DO ekstrim, seperti pada perairan gambut (Honatta, 2010 (Siahaan et al, 2012).…”
Section: Gambar 3 Presentase Komposisi Annelida (A) Sungaiunclassified
“…Marchese & Brinkhurst (1996) found that a higher rate of cocoon production was achieved at 30°C, and a larger number of juveniles per cocoon at 25°C. Among cocoon cultures, at this temperature, full embryonic development and subsequent hatching take nearly three weeks (Nascimento & Alves 2008;Lobo & Alves 2011).…”
Section: Introductionmentioning
confidence: 99%
“…Sexual maturity was reached in approximately 35 days, with an average daily growth of 0.58 mg.day -1 (Marchese & Brinkhurst 1996). After becoming sexually mature, the organisms lay an average of 0.17 cocoons.day -1 (Ducrot et al 2007), during two yearly egg-laying cycles lasting approximately 20 weeks each (Ducrot et al 2007;Lobo & Alves 2011). Life expectancy for this species remains unclear but is estimated to lie between 18 (Aston 1968) and 36 months (Ducrot et al 2007).…”
Section: Introductionmentioning
confidence: 99%