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Het OWA, het open archief van het Waterbouwkundig Laboratorium heeft tot doel alle vrij toegankelijke onderzoeksresultaten van dit instituut in digitale vorm aan te bieden. Op die manier wil het de zichtbaarheid, verspreiding en gebruik van deze onderzoeksresultaten, alsook de wetenschappelijke communicatie maximaal bevorderen.

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one publication added to basket [27056]

The reproductive ecology of Sargassum muticum at different latitudes Norton, T.A.; Deysher, L.E. (1989). The reproductive ecology of Sargassum muticum at different latitudes, in: Ryland, J.S. et al. (Ed.) Reproduction, Genetics and Distributions of Marine Organisms: 23rd European Marine Biology Symposium, School of Biological Sciences, University of Wales, Swansea, 5-9 September 1988. International Symposium Series, : pp. 147-152 In: Ryland, J.S.; Tyler, P.A. (Ed.) (1989). Reproduction, genetics and distributions of marine organisms: 23rd European Marine Biology Symposium, School of Biological Sciences, University of Wales, Swansea, 5-9 September 1988. European Marine Biology Symposia, 23. Olsen & Olsen: Fredensborg. ISBN 87-85215-15-5. VIII, 469 pp., meer In: European Marine Biology Symposia., meer

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Beschikbaar in	Auteurs
VLIZ: Non-open access 133001 [ aanvragen ]
Documenttype: Congresbijdrage

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Trefwoorden

Reproduction Spatial variations > Latitudinal variations [WoRMS] INE, USA, California, Santa Barbara [Marine Regions] Marien/Kust

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Auteurs		Top
Norton, T.A., meer Deysher, L.E.

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Abstract

The fecundity of the invasive brown seaweed Sargassum muticum (Yendo) Fensholt growing at Santa Barbara,California was examined. Fertile receptacles represent approximately half the total fresh weight of theplant. Each receptacle produces approximately 300 eggs and even a plant weighing only 15 g can release inits first season well over a half million eggs.The percentage fertility of populations of Sargassum muticum was assessed throughout the year at threesites on the west coast of the United States, namely, Friday Harbor, Washington (lat. 48'33'N) Santa Barbara,California (lat. 34'25'N) and LaJolla, California (lat. 33"501N)T. here was a marked tendency for the reproductiveperiod in more southerly localities to begin much earlier in the year and to last longer.Transplantation of immature plants 2000 km from San Diego, California (lat. 33'45'N) to Bamfield inBritish Columbia (lat. 48'50'N) revealed that the observed differences in phenology resulted from the effectsof local conditions rather than physiological differences in plants found naturally at different latitudes.Variations in reproductive phenology exhibited by plants occupying different habitats in the sameregion confirm this view.The environmental factors influencing reproductive phenology in these and other sites are discussed.Undoubtedly warmer water temperatures encourage rapid development and early reproduction of Sargassum muticum.

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