Life-cycle and karyology of Branchiura sowerbyi Beddard (Oligochaeta, Tubificidae)

descriptionPublicationkeyboard_double_arrow_right Article , Part of book or chapter of book 01 Jan 1984 Italy English Publisher:Springer Science and Business Media LLCJournal:Hydrobiologia, volume 115, pages 65-69 (issn: 0018-8158, eissn: 1573-5117,

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Authors: CASELLATO, SANDRA;

doi: 10.1007/bf00027895 , 10.1007/978-94-009-6563-8_11

handle: 11577/2501070

Life-cycle and karyology of Branchiura sowerbyi Beddard (Oligochaeta, Tubificidae)

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Abstract

Data on the life-cycle of a population of Branchiura sowerbyi Beddard in a water-lily tank at the Botanical Garden in Padua are reported. The breeding period is from April to July, after which the reproductive system is partially resorbed (August-September) and reformed later in the autumn. The karyology of the species was also studied, and revealed 38 mitotic chromosomes in the gonia, and 19 bivalents in the primary spermatocytes and in the primary oocytes.

Country

Italy

Related Organizations

University of Padua
Italy

Keywords

Branchiura sowerbyi; Oligochaeta; Tubificidae; Life-cycle

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