New PDF release: Endogenous and Exogenous Control of Gametogenesis and

By Annie Mercier, Jean-Francois Hamel

ISBN-10: 012374959X

ISBN-13: 9780123749598

Advances in Marine Biology used to be first released in 1963. Now edited through A.J. Southward (Marine organic organization, UK), P.A. Tyler (Southampton Oceanography organization, UK), C.M. younger (Harbor department Oceanographic establishment, united states) and L.A. Fuiman (University of Texas, USA), the serial publishes in-depth and up to date reports on quite a lot of issues to be able to attract postgraduates and researchers in marine biology, fisheries technology, ecology, zoology, oceanography. Eclectic volumes within the sequence are supplemented via thematic volumes on such subject matters as The Biology of Calanoid Copepods . * Rated "Number 1" within the hugely aggressive classification of Marine & Freshwater Biology by way of ISI within the 2000 ISI journals quotation record * continues an influence issue of 3.37, the top within the box * sequence positive aspects over 35 years of insurance of the study

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Additional info for Endogenous and Exogenous Control of Gametogenesis and Spawning in Echinoderms

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Levels of b-carotene measured in its ovarian tissue were lower than in A. rosea and O. mutabilis, which could explain the lower fecundity of P. , 2003b). In a comparable study, Hudson et al. (2004) suggested that the different patterns of temporal variation in fatty acid composition observed in several species of deep-sea holothuroids (A. rosea, Bathyplotes natans, Deima validum, P. longicauda, O. mutabilis, P. prouhoi, Control of Reproduction in Echinoderms 43 Benthogone rosea, Laetmogone violacea and Paroriza pallens) were possibly linked to different reproductive strategies exhibited by these species.

2003a). , 2003b). Conversely, P. longicauda has the largest recorded oocytes of any echinoderm (ca. 4400 mm) and presumably undergoes direct larval development (Tyler and Billett, 1987), probably requiring large amounts of reproductively important carotenoids to permit vitellogenesis. Levels of b-carotene measured in its ovarian tissue were lower than in A. rosea and O. mutabilis, which could explain the lower fecundity of P. , 2003b). In a comparable study, Hudson et al. (2004) suggested that the different patterns of temporal variation in fatty acid composition observed in several species of deep-sea holothuroids (A.

Grosjean et al. (1998) were also able to maintain mature P. lividus throughout the year at 18–20  C, but in total darkness. More recently, Shpigel et al. (2004) presented evidence that temperatures of 18–22  C enhanced gonad growth in P. lividus from the Red Sea but that gametogenesis was controlled by photoperiod; long days reduced gametogenic rate while short days increased it. On the other hand, Spirlet et al. (2000) found temperature to be the main determinant of gonad development in P. lividus reared in the laboratory from broodstock collected in Brittany (France).

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Endogenous and Exogenous Control of Gametogenesis and Spawning in Echinoderms by Annie Mercier, Jean-Francois Hamel


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