Thirty years after - dramatic change in the coastal marine habitats of Kos Island (Greece), 1981-2013.

Bianchi, Carlo Nike; Corsini-Foka, Maria; Morri, Carla

doi:10.12681/mms.678

Cited by 110 publications

(93 citation statements)

References 45 publications

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“…Along the Aegean Turkish coasts, the species is present in the Southeastern coasts (Akın et al, 2005;Öğretmen et al, 2005;Oz et al, 2007), and also up to the North (Eryilmaz, 2003). Studies based on data including last three decades showed that seawater temperature increased approximately 1-2°C (PancucciPapadopoulou et al, 2012;Bianchi et al, 2014) and warming trend is 0.06°C/year in the south Aegean Sea Skliris et al, 2011, Shaltout andOmstedt, 2014). As it is well known, the SST gradient of whole Aegean subbasin is significantly controlled by water exchange between cold/fresh Black Sea water entering through the Dardanelles Strait and warm/saline Levantine basin water entering through the Cretan Arc Straits (Zervakis et al, 2000;Poulain et al, 2012).…”

Section: Resultsmentioning

confidence: 99%

NORTHWARDS RANGE EXPANSION OF Sparisoma cretense (Linnaeus, 1758) IN THE TURKISH AEGEAN SEA

Yapıcı¹,

Filiz²,

Bilge³

2016

J Aquacult Eng Fish Res

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Section: Resultsmentioning

confidence: 99%

NORTHWARDS RANGE EXPANSION OF Sparisoma cretense (Linnaeus, 1758) IN THE TURKISH AEGEAN SEA

Yapıcı¹,

Filiz²,

Bilge³

2016

J Aquacult Eng Fish Res

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“…Given, however, the strong alterations in ecosystem structure, the establishment of the MPA will have to be accompanied by early restoration actions targeting the decrease (and if possible removal) of invasive species. Therefore, priority should be given to management measures for the regulation of the two herbivore fishes that have led to severe deforestation of the infralittoral rocky shores of Santorini Island, as well as other locations in the southern Aegean Sea (Bianchi et al, 2014;Vergés et al, 2014;authors' unpublished data).…”

Section: Discussionmentioning

confidence: 99%

Setting an ecological baseline prior to the bottom-up establishment of a marine protected area in Santorini island, Aegean Sea

et al. 2016

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Since 2010, a bottom-up initiative has been launched in Santorini Island (Aegean Sea, Eastern Mediterranean) for the establishment of the first fully-protected marine protected area in the Cyclades, aiming at improving fisheries and enhancing responsible recreational uses at sea. Following discussions with local small-scale fishers and divers, two sites along the southern and southeastern coasts of the island were suggested as suitable to this end. In 2012, a baseline study was conducted at these areas to assess their state and provide an ecological snapshot that would enable sound designation and monitoring. Several ad hoc indices and metrics were applied, taking into account structural and functional features of the upper infralittoral algae and Posidonia oceanica beds. An integrated assessment of the infralittoral fish assemblages and their associated benthic communities was also performed. Our most important findings were: (i) the low total fish biomass and the absence of adult top predators, indicating overfishing; (ii) the overgrazing effects of the overabundant alien herbivore spinefoot fishes (Siganus spp.), as reflected by the abnormal structure of the algal communities; (iii) the scarcity of signs of pollution or other direct anthropogenic pressures, as indicated by the good environmental status of the P. oceanica meadows and the upper infralittoral vegetation; and (iv) the presence of a rich diversity of species and habitats, especially along the Akrotiri Peninsula and the wider volcanic Caldera. These findings provide useful insights on strengths and weaknesses of the study area and are discussed together with their implications for protection and management.

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“…At Kos Island (Greece, eastern Mediterranean), Bianchi et al [118] compared benthic data collected in 1981 and in 2013, by the same persons with the same method. During this 30+ year period, increases in Sea Surface Temperature (SST, +1-2°C), human pressure (resorts and hotels, 15 to 163 beds/km²), and NISs (e.g.…”

Section: Mediterranean Species and Ecosystemsmentioning

confidence: 99%

Marine Biodiversity - Warming vs. Biological Invasions and overfishing in the Mediterranean Sea: Take care, ‘One Train can hide another’

Boudouresque¹

2017

MOJES

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Biodiversity means the variety of life, encompassing levels of complexity from within species to across ecosystems. Biodiversity therefore includes several dimensions: evolutionary scale (genetic, species, higher taxonomic levels and phylogenetic diversity), functional scale, organizational scale (patch, ecosystem, landscape/seascape diversity), spatial scale (from sample to local, regional and global richness) and heterogeneity diversity. Biodiversity can therefore be measured in different and complementary ways, thus involving the use of at least 200 different metrics, which can suggest different and contrasting conclusions. It is worth emphasizing that species richness may be the least appropriate metric, despite its popular acceptance. There is a growing tendency for stakeholders, managers, government officials, environmentalists, scientists, politicians and the media to focus, as concerns threats to biodiversity, on species richness and climate change. However, focusing on climate warming can mask other stressors that, today, and perhaps for decades to come, may have more impact on ecosystems than global warming. In the Mediterranean Sea, the overall impact of Non-Indigenous Species (NISs) and overfishing on species diversity, ecosystem diversity and ecosystem functioning exceeds to a greater or lesser degree the direct impact of warming. Drastically altered functioning patterns, and even new ecosystems are spreading throughout the Mediterranean Sea. This trend is likely to become more pronounced over the next decades. Ecosystem goods and services are also being profoundly altered, generally towards a decline, as illustrated by the overgrazed barren grounds of the eastern basin, which no longer support fisheries, by the impact of the Caulerpa meadows on the scuba diving business and the economic value of the fisheries of the western basin, by the brackish lagoon ecosystems and by the blooms of the introduced comb jelly Mnemiopsis leidyi in the Black Sea, before the arrival of its predator Beroe ovata. Here, we draw attention to the fact that, at this moment and probably also in the future, the huge flow of NISs and overfishing constitute worrying issues, although largely ignored by stakeholders and political authorities. Take care: Un train peut en cacher un autre (one train can hide another; i.e. one danger may hide other unsuspected dangers), that is to say the impact of warming may contribute to hiding other effects, of at least equal gravity, such as biological invasions and overfishing.

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Thirty years after - dramatic change in the coastal marine habitats of Kos Island (Greece), 1981-2013.

Cited by 110 publications

References 45 publications

NORTHWARDS RANGE EXPANSION OF Sparisoma cretense (Linnaeus, 1758) IN THE TURKISH AEGEAN SEA

NORTHWARDS RANGE EXPANSION OF Sparisoma cretense (Linnaeus, 1758) IN THE TURKISH AEGEAN SEA

Setting an ecological baseline prior to the bottom-up establishment of a marine protected area in Santorini island, Aegean Sea

Marine Biodiversity - Warming vs. Biological Invasions and overfishing in the Mediterranean Sea: Take care, ‘One Train can hide another’

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