ISSN:
1573-5117
Keywords:
Gigartina skottsbergii
;
management
;
seasonal variation
;
seaweed
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
Notes:
Abstract This study reports the variations in biomass and reproductive phenology in a natural bed of Gigartina skottsbergii over a period of a year and correlates these variations with the abiotic factors solar radiation, number of daylight hours, water temperature and salinity. The results obtained show an annual production cycle with maximum biomass values in spring-summer, correlated with high solar radiation and to a lesser extent with salinity. Sexual reproduction was maximum in autumn-winter, correlated with low temperature and short-day conditions. The population showed a large gametophytic dominance according to size and biomass, which suggests that there is not ecological equivalence between the life history phases of the species. Finally, based on the results, a restriction of harvesting to spring-summer is suggested.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00047815
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