Many human activities add new structures to the marine landscape. Despite the fact that human structures cause some inevitable impacts, surprisingly little information exists on the effects of marina on natural marine assemblages. The aim of this paper is to assess habitat-specific response of benthic sessile organisms of rocky shores in relation to the presence of a small marina. Sampling was carried out at three coastal habitats (midshore, lowshore and subtidal) by means of visual censuses adopting an after-control-impact (ACI) experimental design. It appears that the marina affects the structure and composition of benthic communities of both the midshore and the lowshore. Little effect was evident on shallow subtidal assemblage structure. The results of the present study clearly show habitat-specific responses of coastal benthic assemblages to the presence of infrastructure.
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http://dx.doi.org/10.1016/j.marpolbul.2011.02.053 | DOI Listing |
Curr Zool
June 2022
Centro de Investigación Mariña (CIM-UVIGO), Universidade de Vigo, Vigo 36310, Spain.
Proteomic analysis was carried out on the Crab (upper-shore) and Wave (lower-shore) ecotypes of from a hybrid zone at Silleiro Cape, Spain. Proteome profiles of individual snails were obtained. Protein expression in F hybrid snails bred in the laboratory and snails with intermediate shell phenotypes collected from the mid-shore were compared with Crab and Wave ecotypes using analytical approaches used to study dominance.
View Article and Find Full Text PDFOecologia
May 2019
Marine Ecology Research Group, School of Biological Sciences, University of Canterbury, Private Bag 4800, Christchurch, New Zealand.
Understanding how biodiversity and its components of alpha, beta, and gamma vary over spatial and temporal scales and across communities is crucial to mitigating stressors of ecosystems. Marine communities present several problems in partitioning diversity over fine spatial scales, such as tidal zones, and temporal scales relating to seasonal occurrences of species and recovery responses to impacts. This study uses an experimental approach to test disturbance effects on beta diversity in algal communities in southern New Zealand.
View Article and Find Full Text PDFPLoS One
September 2017
School of Science & Engineering, University of the Sunshine Coast, Sippy Downs, Queensland, Australia.
Predicting responses of coastal ecosystems to altered sea surface temperatures (SST) associated with global climate change, requires knowledge of demographic responses of individual species. Body size is an excellent metric because it scales strongly with growth and fecundity for many ectotherms. These attributes can underpin demographic as well as community and ecosystem level processes, providing valuable insights for responses of vulnerable coastal ecosystems to changing climate.
View Article and Find Full Text PDFPLoS One
August 2013
Institute for Conservation Biology and Environmental Management, School of Biological Sciences, University of Wollongong, Wollongong, New South Wales, Australia.
Climate change and ocean acidification will expose marine organisms to synchronous multiple stressors, with early life stages being potentially most vulnerable to changing environmental conditions. We simultaneously exposed encapsulated molluscan embryos to three abiotic stressors-acidified conditions, elevated temperate, and solar UV radiation in large outdoor water tables in a multifactorial design. Solar UV radiation was modified with plastic filters, while levels of the other factors reflected IPCC predictions for near-future change.
View Article and Find Full Text PDFMar Environ Res
September 2012
Department of Zoology and Cell Biology, Faculty of Science and Technology, University of the Basque Country, Box 644, E-48080 Bilbao, Spain.
The effectiveness of secondary vs primary treatments of wastewaters in mitigating the effects of sewage discharge on the multivariate structure and diversity of rocky invertebrate assemblages was assessed over a nine-year period through a beyond-BACI experimental design. Assemblages from different tidal levels (i.e.
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