Climate change effects on a miniature ocean: the highly diverse, highly impacted Mediterranean Sea

Lejeusne, Christophe; Chevaldonné, Pierre; Pergent-Martinì, Christine; Boudouresque, Charles–François; Pérez, Thierry

doi:10.1016/j.tree.2009.10.009

Cited by 730 publications

(606 citation statements)

References 71 publications

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“…In a review of climate change effects on the Mediterranean, Lejeusne et al (2010) warn about the effects of fauna shifting, the spread of invasive species, the risk of what some authors have called the "tropicalization" of the Mediterranean (Bianchi, 2007), as well as the possibility of more multispecies mass mortality events such as those related to heat waves in 1999 and 2003. These authors point out the need for further research to better understand the implications of climate change on Mediterranean marine ecosystems.…”

Section: Discussionmentioning

confidence: 99%

“…The Mediterranean has been identified as one of the "hot-spots" in future climate change projections because it is an especially vulnerable environment (Giorgi, 2006;Lionello et al, 2006;Giorgi and Lionello, 2008;Lejeusne et al, 2010). There are many factors behind this assertion: (1) it is a transitional region between mid-latitudes and subtropical climate regimes; (2) it is dominated by the Mediterranean Sea, a semi-enclosed sea which is an important source of moisture and a heat reservoir, that has also been considered as a miniature ocean by physical, chemical, climatic and environmental studies (Bethoux et al, 1999); and (3) the Mediterranean environment has experienced a strong human impact since ancient times due to demographic pressure, agricultural exploitation, urbanization and, more recently, coastal tourism.…”

Section: Introductionmentioning

confidence: 99%

“…There are many factors behind this assertion: (1) it is a transitional region between mid-latitudes and subtropical climate regimes; (2) it is dominated by the Mediterranean Sea, a semi-enclosed sea which is an important source of moisture and a heat reservoir, that has also been considered as a miniature ocean by physical, chemical, climatic and environmental studies (Bethoux et al, 1999); and (3) the Mediterranean environment has experienced a strong human impact since ancient times due to demographic pressure, agricultural exploitation, urbanization and, more recently, coastal tourism. Many works (Bethoux et al, 1990(Bethoux et al, , 1998Rholin and Bryden, 1992;Vargas-Yáñez et al, 2005 confirm the increase in temperature in deep, intermediate and surface Mediterranean waters, and others explore the effects of this warming in the biology and ecology of organisms in the sea (see the review by Lejeusne et al, 2010) as well as its role in fisheries fluctuations (Tzanatos et al, 2014). It is important to further increase our knowledge of regional, seasonal and decadal variability on temperatures in the Mediterranean environment as temperature changes interact with pollution, overfishing, sea level changes or acidification, and can trigger major changes in the ecosystems.…”

Section: Introductionmentioning

confidence: 99%

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Recent warming in the Balearic Sea and Spanish Mediterranean coast. Towards an earlier and longer summer

García

2015

Atm

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Este trabajo analiza los cambios recientes en la temperatura del mar Balear y las tierras costeras circundantes. Para el análisis de la temperatura terrestre se han utilizado registros mensuales de varios observatorios litorales del mar (SST, por sus siglas en inglés) se utilizaron imágenes térmicas mensuales de satélite procedentes del Physical Oceanography Distributed Active Archive Center (PO.DAAC) disponibles para el periodo 1985-2009. últimos 25 años, con tasas de 0.039 ºC/año en tierra para el periodo 1960-2010 y 0.026 ºC/año para el mar durante el periodo 1985-2009. El análisis estacional de las tendencias muestra que en los últimos 25 años las mayores tasas de calentamiento se producen durante la transición primavera-verano, con tasas máximas en el mes de junio (0.12 ºC/año en tierra y 0.08 ºC/año en el mar). Los resultados evidencian una tendencia hacia el adelantamiento y prolongación de la estación estival en las últimas décadas, tanto en tierra como en mar. . The seasonal analysis showed that, in the last 25 years, higher trends were registered during the transition from spring to summer, with the highest warming rates in June (0.12 ºC/year on land and 0.08 ºC/year in SSTs). Results show a recent tendency towards earlier and longer summers both on land and sea.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Recent warming in the Balearic Sea and Spanish Mediterranean coast. Towards an earlier and longer summer

García

2015

Atm

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“…Global climate change, in synergy with other disturbances such as water pollution, coastal development, massive algal blooms, pathogenic organisms, and invasive species, among others, is expected to have significant effects on Mediterranean biodiversity in the near future Templado 2014). For over a decade, mass mortality events have recurrently impacted Mediterranean benthic communities owing to prolonged heat waves that affect some emblematic sessile invertebrates (Cerrano et al 2000;Perez et al 2000;Garrabou et al 2009;Lejeusne et al 2009). The scleractinian coral Cladocora caespitosa (Linnaeus, 1767) is among these affected species and mortalities of its reefs have been recorded, including those in the Adriatic Sea (Kružić et al 2012), Gulf of La Spezia (Rodolfo-Metalpa et al 2005), and Columbretes Islands where over 50 % of the coral cover has been affected by necrosis during the last decade (Kersting et al 2013a).…”

Section: Introductionmentioning

confidence: 99%

Regional genetic differentiation among populations of Cladocora caespitosa in the Western Mediterranean

et al. 2014

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Cladocora caespitosa is the only reef-forming zooxanthellate scleractinian in the Mediterranean Sea. This endemic coral has suffered severe mortality events at different Mediterranean sites owing to anomalous summer heat waves related to global climate change. In this study, we assessed genetic structure and gene flow among four populations of this species in the Western Mediterranean Sea: Cape Palos (SE Spain), Cala Galdana (Balearic Islands), Columbretes Islands, and L'Ametlla (NE Spain). The results obtained from Bayesian approaches, F ST statistics, and Bayesian analysis of migration rates suggest certain levels of genetic differentiation driven by high levels of selfrecruitment, a fact that is supported by egg-retention mechanisms. Conversely, genetic connectivity among distant populations, even if generally low, seems to be related to sporadic dispersal events through regional surface currents linked to the spawning period that occurs at the end of summer-beginning of autumn. These features, together with a certain isolation of the Columbretes Islands, could explain the regional genetic differentiation found among populations. These results help to better understand population structure and connectivity of the species and will serve as an approach for further studies on different aspects of the biology and ecology of C. caespitosa.

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“…Within this context, the Mediterranean Sea can represents a good case study, corresponding to one of the LMEs and being a sort of "small ocean" within a semi-enclosed basin, characterized by peculiar environmental conditions, such as the presence of strong gradients, and biodiversity hotspots (Lejeusne et al, 2010). Moreover, it can act as a cul de sac, avoiding the further northward migration of cold affinity species, due to the water warming (Ben Rais Lasram et al, 2010).…”

Section: Introductionmentioning

confidence: 99%

The Influence of the Spatial Scale on the Fishery Landings-SST Relationship

et al. 2016

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Possible effects of the spatial scale of analysis on the relationship between fishery landings and the water temperature in the Mediterranean Sea have been investigated using the FAO capture database . The analysis was performed by dividing species in three thermal affinity categories: cold, temperate and warm-water species. Results showed significant changes in fishery landings composition during the last four decades, in terms of the relative contribution of cold, temperate and warm-water species to landings; moreover, the presence of a strong influence of water warming in determining the landings temporal pattern has been confirmed. This relationship, however, resulted to be not homogenous across the tested spatial scales (entire Mediterranean basin, three main sub-basins, eight FAO areas). The best models (based on the Akaike Information Criterion), were the ones fitted at the finer spatial definition (i.e., the eight FAO areas) for all the three thermal affinity categories. The recorded relationship showed clear differences in terms of direction, depending on both areas and thermal affinity groups. Cold-water species showed a negative relationship with the increasing water temperature in all the FAO areas, being partially replaced by temperate-water ones, with the exception of the Adriatic and Black Sea (the coldest areas in the Mediterranean basin), where a moderate increase in the water temperature is still favoring the cold affinity group. This kind of results could be useful within the context of the management plans definition, within a context of climate changes.

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Climate change effects on a miniature ocean: the highly diverse, highly impacted Mediterranean Sea

Cited by 730 publications

References 71 publications

Recent warming in the Balearic Sea and Spanish Mediterranean coast. Towards an earlier and longer summer

Recent warming in the Balearic Sea and Spanish Mediterranean coast. Towards an earlier and longer summer

Regional genetic differentiation among populations of Cladocora caespitosa in the Western Mediterranean

The Influence of the Spatial Scale on the Fishery Landings-SST Relationship

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