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Le cycle spermatogénétique chez Nerophis lumbriciformis (téléostéens syngnathidés) = The spermatogenic cycle in Nerophis lumbriciformis (Teleostei, Syngnathidae)
Guyomarc'h, J.-P. (1972). Le cycle spermatogénétique chez Nerophis lumbriciformis (téléostéens syngnathidés) = The spermatogenic cycle in Nerophis lumbriciformis (Teleostei, Syngnathidae). Cah. Biol. Mar. 13: 21-35, 2 plates
In: Cahiers de Biologie Marine. Station Biologique de Roscoff: Paris. ISSN 0007-9723, more
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    Marine

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  • Guyomarc'h, J.-P.

Abstract
    Sexual activity in N. lumbriciformis was studied along the year. It may be connected with distinct periods: (a) a high-activity spermatogenetic period with repeating incubations, a continuity in spermatogonial production, an accelerated spermatogenesis, a permanent production of spermatozoon in variable quantities and according to successive waves; (b) a low-activity spermatogenetic period showing a resting phase in the annual cycle and characterized by a slight development of germinative epithelia and absence of spermatozoon. Spermatogenesis seems to be continuous during a great part of the year but that continuity is moderated by some variations in the production of germ cells of different types.

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