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- W2531575929 abstract "MEPS Marine Ecology Progress Series Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout the JournalEditorsTheme Sections MEPS 561:189-201 (2016) - DOI: https://doi.org/10.3354/meps11915 Environmental drivers of salp Thalia democratica population dynamics from in situ observations Maria Pascual1,*, Michael G. Neubert2, José Luis Acuña3, Andrew R. Solow2, Carlos Dominguez-Carrió1, Joaquín Salvador1, Alejandro Olariaga1, Verónica Fuentes1 1Institut de Ciències del Mar, 08003 Barcelona, Spain 2Woods Hole Oceanographic Institution, Woods Hole, MA 02543, USA 3Universidad de Oviedo, 33003 Oviedo, Spain *Corresponding author: mpascual@icm.csic.es ABSTRACT: Thalia democratica blooms are a recurrent phenomenon in many coastal areas of the Mediterranean Sea and have significant ecological effects. To better understand the environmental drivers of salp blooms, we conducted 8 surveys to sample T. democratica in contrasting seasonal, temperature and chlorophyll conditions. In each survey, short-term variations in the abundances of different salp stages were assessed by sampling the same population at 30 min intervals. Using these data, we estimated the parameters in a set of stage-classified matrix population models representing different assumptions about the influence of temperature and chlorophyll on each stage. In the model that best explains our observations, only females are affected by changes in water temperature. Whether this is a direct influence of temperature or an indirect effect reflecting low food availability, female reproduction cessation seems to slow population growth under unfavourable conditions. When conditions become favourable again, females liberate the embryo and change sex to male, allowing for mating under extremely low salp densities and triggering the bloom. In contrast to previous findings, our results suggest that females, rather than oozooids, are responsible for the sustainability of salp populations during latency periods. KEY WORDS: Matrix population models · Pelagic tunicate ecology · Population latency · Gelatinous zooplankton blooms Full text in pdf format Supplementary material PreviousNextCite this article as: Pascual M, Neubert MG, Acuña JL, Solow AR and others (2016) Environmental drivers of salp Thalia democratica population dynamics from in situ observations. Mar Ecol Prog Ser 561:189-201. https://doi.org/10.3354/meps11915 Export citation RSS - Facebook - Tweet - linkedIn Cited by Published in MEPS Vol. 561. Online publication date: December 15, 2016 Print ISSN: 0171-8630; Online ISSN: 1616-1599 Copyright © 2016 Inter-Research." @default.
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- W2531575929 title "Environmental drivers of salp Thalia democratica population dynamics from in situ observations" @default.
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