Iran has 1260 km of coastline that borders the Persian Gulf and the Oman Sea in the northwest Indian Ocean. Marine algae are one of the natural resources in the marine ecosystem which produce a wide range of new secondary metabolites with various biological activities that play an important role in the pharmaceutical care. In this study the cytotoxic activity of 28 marine algae of Chabahar coas...

The abrupt decline in the sea’s capacity to provide crucial ecosystem services requires a new ecosystembased approach for maintaining and recovering biodiversity and integrity. Ecosystems are places, so marine spatial planners and managers must understand the heterogeneity of biological communities and their key components (especially apex predators and structure-forming species), and of key pr...

In this introductory paper we highlight key questions that were discussed during the symposium on “Status, functioning and shifts in marine ecosystems” organized by the Association Française d’Halieutique (French Association for Fisheries Sciences, Montpellier, France, July 2015). This symposium illustrated that fisheries science is now working at multiple scales and on all dimensions of socio-...

Historical data describing changing social-ecological interactions in marine systems can help guide small-scale fisheries management efforts. Fisheries landings data are often the primary source for historical reconstructions of fisheries; however, we argue that reliance on data of a single type and/or from a single scale can lead to potentially misleading conclusions. For example, a narrow foc...

The damaging effects of human activities on marine ecosystems suggest that a major shift is required in the way marine resources and systems are viewed and used by individuals. Identifying how to engage society in this shift is an ongoing debate. This includes strengthening the positive connections between society and the sea. Currently, the major focus of research in this area is on coastal ar...

L Glutaminase, a therapeutic enzyme obtained from marine Actinomycetes gains importance because of their adaptability to varied environmental factors. An experimental study was carried out to isolate the L glutaminase producing actinomycetes from the marine sediment of Thoothukudi. Marine sediment sample was collected from six different locations of the Thoothukudi coastal ecosystem, enriched w...

A good understanding of the mechanisms and magnitude of the impact of invasive alien species on ecosystem services and biodiversity is a prerequisite for the efficient prioritisation of actions to prevent new invasions or for developing mitigation measures. In this review, we identified alien marine species that have a high impact on ecosystem services and biodiversity in European seas, classif...

www.frontiersinecology.org © The Ecological Society of America C evidence is accumulating from terrestrial, freshwater, and marine systems to suggest that sustainable ecosystem services depend upon a diverse biota (Daily et al. 1997; Loreau et al. 2001; Tilman et al. 2001; Wall et al. 2004; MA 2005; Sala and Knowlton 2006; Worm et al. 2006; Butler et al. 2007; Hector and Bagchi 2007). In princi...

Marine ecosystem community carbon and nutrient uptake stoichiometry under varying ocean acidification during the PeECE III experiment R. G. J. Bellerby, K. G. Schulz, U. Riebesell, C. Neill, G. Nondal, T. Johannessen, and K. R. Brown Bjerknes Centre for Climate Research, Univ. of Bergen, Allégaten 55, 5007 Bergen, Norway Geophysical Institute, University of Bergen, Allégaten 70, 5007 Bergen, No...