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Effects of thermal stress on the growth of an intertidal population of Ellisolandia elongata (Rhodophyta) from N-W Mediterranean Sea

TitoloEffects of thermal stress on the growth of an intertidal population of Ellisolandia elongata (Rhodophyta) from N-W Mediterranean Sea
Tipo di pubblicazioneArticolo su Rivista peer-reviewed
Anno di Pubblicazione2015
AutoriNannini, M., De Marchi L., Lombardi Chiara, and Ragazzola F.
RivistaMarine Environmental Research
Volume112
Paginazione11-19
Data di pubblicazioneDEC
ISSN01411136
Parole chiaveAlgae, Biodiversity, Biogenic structures, Biomineralization, bone mineralization, calcification, Calcium, Calcium Carbonate, Carbonation, chemistry, Climate change, climate effect, development and aging, environmental factor, Environmental factors, Global warming, greenhouse effect, growth, growth response, Heat, Hot Temperature, Increased temperature, intertidal environment, Intertidal populations, Italy, Linear extensions, Marine biodiversity, Mediterranean Sea, Mediterranean Sea (Northwest), metabolism, Physiologic, Physiological, physiological stress, Population statistics, red alga, Rhodophyta, sea water, Seawater, Seaweed, Shallow water environment, stress, Temperature, temperature effect, Thermal adaptation, Thermal stress, thermal structure
Abstract

Coralline algae are calcareous algae able to build biogenic structures, thus playing a key-role as marine biodiversity promoters and calcium carbonate producers. The aim was to estimate the growth of Ellisolandia elongata under thermal stress. E. elongata were cultured for 2, 4 and 6 months under "natural" temperature (Tc) and increased temperature (Ti = Tc + 3 °C). In order to determine a possible culturing effect, growth in the field was also measured. For the first time, Alizarin Red S dye was used in high energy shallow water environments. Thallus linear extension was higher in the cultured specimens (Tc and Ti) compared to the field specimens. The carbonate mass in the field was higher than in Ti and Tc after 2, 4 months but decreased after 6 months. Partly unknown in situ environmental factors could have affected growth and calcification rates in the field while thermal adaptation could explain growth rates in the culturing experiment. © 2015 Elsevier Ltd.

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URLhttps://www.scopus.com/inward/record.uri?eid=2-s2.0-84949088440&doi=10.1016%2fj.marenvres.2015.05.005&partnerID=40&md5=9b1ee8176dd9a84b5cbb1426c9c3da59
DOI10.1016/j.marenvres.2015.05.005
Citation KeyNannini201511