English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/64508
Share/Impact:
Statistics
logo share SHARE logo core CORE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar a otros formatos:

Title

Effects of thermal stress on early developmental stages of a gorgonian coral

AuthorsKipson, Silvija ; Linares, Cristina ; Teixidó, Nuria ; Bakran-Petricioli, Tatjana; Garrabou, Joaquim
KeywordsTemperature stress
Octocoral
Embryogenesis
Larval development
Mediterranean Sea
Global warming
Issue DateDec-2012
PublisherInter Research
CitationMarine Ecology Progress Series 470: 69-78 (2012)
AbstractOngoing sea temperature increase threatens reefs worldwide. In this study we experimentally examined for the first time the response of the early life stages of a long-lived structural gorgonian, the Mediterranean species Paramuricea clavata (Risso 1826), to the highest summer temperature recorded so far in the study area (25°C; the Medes Islands, Northwestern Mediterranean). This temperature also simulates the end-of-century predicted warming (+3°C) over the temperature maxima recorded during the species’ reproductive period. The results showed a severe negative impact of constant thermal stress on the viability of P. clavata embryos and larvae, resulting in reduced survivorship, completely abnormal embryonic development and impaired metamorphosis. The deteriorating effect was rapid for embryos (after 7 h), whereas the impact on larvae became evident after 10 d of stress. Larval modifications started 7 d earlier under elevated temperature conditions, but the appearance of spherical, aberrant shapes prevented an assessment of whether metamorphosis was initiated but abnormal, or deterred altogether. The apparent higher sensitivity of embryos suggests that thermal stress during embryonic development may be the most critical factor for the viability of P. clavata larvae. In the context of an ongoing warming trend, the reduced viability of early life stages would jeopardize the persistence of P. clavata, which relies on successful recruitment for replenishment of its populations. Further research into the effects of thermal stress on the reproduction of structural invertebrate species and the viability of their early life stages will improve our understanding of the long-term consequences of environmental global change in marine benthic communities
Description10 pages, 6 figures
Publisher version (URL)http://dx.doi.org/10.3354/meps09982
URIhttp://hdl.handle.net/10261/64508
DOI10.3354/meps09982
ISSN0171-8630
E-ISSN1616-1599
Appears in Collections:(ICM) Artículos
Files in This Item:
File Description SizeFormat 
Kipson_et_al_2012.pdf608,28 kBAdobe PDFThumbnail
View/Open
Show full item record
Review this work
 

Related articles:


WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.