Gérard Pergent

Université de Corse Pascal Paoli

Author Statistics

Papers

Citation

H-Index

i-10 index

Research Trends

Author Order

Document Type

Co-Authors

Christine Pergent‐Martini

Centre National de la Recherche Scientifique

Vanina Pasqualini

Centre National de la Recherche Scientifique

Catherine Fernandez

Aix-Marseille Université

Céline Lafabrie

Université de Montpellier

Lila Ferrat

Sciences pour l'Environnement

Cecilia Lopez y Royo

United Nations Environment Programme

Roger Kantin

Délégation Régionale Provence-Alpes-Côte d’Azur et Corse

Habib Langar

Tunis University

Marc Verlaque

Centre National de la Recherche Scientifique

Aslam Sami Djellouli

Tunis El Manar University

Cooperative Institutions

Centre National de la Recherche Scientifique

Université de Corse Pascal Paoli

Tunis El Manar University

Hellenic Centre for Marine Research

Observatoire Océanologique de Banyuls-sur-Mer

Sciences pour l'Environnement

University of Malta

University of the Aegean

Institut de Recherche pour le Développement

Aix-Marseille Université

Author Statistics

Papers

Citation

H-Index

i-10 index

Research Field

A biotic index using the seagrass Posidonia oceanica (BiPo), to evaluate ecological status of coastal waters

Ecological Indicators (2009)

Cecilia Lopez y Royo Gabriele Casazza Christine Pergent‐Martini Gérard Pergent

Posidonia oceanica

Water Framework Directive

Biotic index

10.1016/j.ecolind.2009.07.005

Cite

Citations (64)

Impatto sull'ecosistema costiero mediterraneo da parte dell'alga verde tossica, Caulerpa taxifolia, di origine tropicale

Di Giuseppe G Christine Pergent‐Martini Gérard Pergent F Dini

Cape verde

Source

Cite

Citations (0)

Dynamic of Posidonia oceanica seagrass meadows in the northwestern Mediterranean: Could climate change be to blame?

Comptes Rendus Biologies (2015)

Gérard Pergent Christine Pergent‐Martini Aymeric Bein Marine Dedeken Pascal Oberti

Posidonia oceanica

Potamogetonaceae

10.1016/j.crvi.2015.04.011

Cite

Citations (42)

Bioassessment of trace element contamination of Mediterranean coastal waters using the seagrass Posidonia oceanica

Journal of Environmental Management (2015)

Jonathan Richir Maylis Salivas-Decaux Céline Lafabrie Cecilia Lopez y Royo Sylvie Gobert

Posidonia oceanica

Bioindicator

Trace element

10.1016/j.jenvman.2014.11.015

Cite

Citations (41)

Morphology and Genetic Studies of Cymodocea Seagrass Genus in Tunisian Coasts

Phyton (2019)

Ramzi Bchir Aslam Sami Djellouli Nadia Zitouna Didier Aurelle Gérard Pergent

Specimens of Cymodocea (Viridiplantae, Magnoliophyta) collected on the Tunisian coasts showed a particular morphological and anatomical difference with the classical descriptions of Cymodocea nodosa (Ucria) Asch. the only species of this genus reported in the Mediterranean Sea. In order to precise the taxonomic identity of the new specimens we aimed in this work (i) to verify the identity of the new forms, (ii) to evaluate the genetic diversity of the population, (iii) to test the validity of the existing identification keys of the Tunisian Cymodocea populations. Four stations located in two regions of the Tunisian coasts were sampled. Leaf morphological and anatomical characters used in taxonomic identification were measured (e.g., number of cross veins, shape of the apex). The genetic study was performed using three most common chloroplast markers for plant characterization (DNA barcodes rbcL, matK and trnHpsbA). The morphological study revealed the presence of three C. nodosa morphotypes, described here for the first time, while the molecular characterization did not allow the discrimination of these morphological types. In regard to these results, it would be wise to review the classical identification keys of the Cymodocea genus.

Identification

Morphometrics

10.32604/phyton.2019.05261

Cite

Citations (2)

Mediterranean coastal resources management: The example of the island of Corsica

Vanina Pasqualini Christine Pergent‐Martini Gérard Pergent

To undertake an inventory of the resources around the Mediterranean coasts necessarily involves a study of the distribution of the Posidonia oceanica meadows because of the major role they play (from ecological, economic and sedimentary points of view) in maintaining the equilibrium of the coastal environment. Paradoxically, the available data regarding the assemblages are rare, and only deal with a small part of the Corsican coastline, although the coastal areas constitute one of the major assets of the island with regard to economic development. To make good this lack, a cartographical survey has been undertaken for the whole of the Corsican coastline (about 950 km). Because of the relatively wide bathymetric range of Posidonia oceanica (0 to 40 m depth), two techniques have been used jointly : airborne remote sensing and side scan sonar. The results obtained confirm the extensiveness of these meadows with regard to the area covered (more than 60 000 ha). In addition, the maximum bathymetric range of the Posidonia oceanica meadow (lower limit) is unusually deep, with an average maximum depth of more than 35 m. Comparison of the present results with the available data on the distribution of the main meadows worldwide confirms the exceptionallymore » wide range of this species around the Corsican coastline.« less

Corsican

Posidonia oceanica

Source

Cite

Citations (2)

The seagrass Posidonia oceanica as indicator of coastal water quality: Experimental intercalibration of classification systems

Ecological Indicators (2010)

Cecilia Lopez y Royo Gérard Pergent Teresa Alcoverro Maria Cristina Buia Gabriele Casazza

Posidonia oceanica

Water Framework Directive

Comparability

10.1016/j.ecolind.2010.07.012

Cite

Citations (56)

Moules et posidonies comme organismes bio-intégrateurs

HAL (Le Centre pour la Communication Scientifique Directe) (2015)

Gérard Pergent Roger Kantin Christine Pergent‐Martini Céline Lafabrie

Source

Cite

Citations (0)

Recent trend reversal for declining European seagrass meadows

Nature Communications (2019)

Carmen B. de los Santos Dorte Krause‐Jensen Teresa Alcoverro Núria Marbà Carlos M. Duarte

Abstract Seagrass meadows, key ecosystems supporting fisheries, carbon sequestration and coastal protection, are globally threatened. In Europe, loss and recovery of seagrasses are reported, but the changes in extent and density at the continental scale remain unclear. Here we collate assessments of changes from 1869 to 2016 and show that 1/3 of European seagrass area was lost due to disease, deteriorated water quality, and coastal development, with losses peaking in the 1970s and 1980s. Since then, loss rates slowed down for most of the species and fast-growing species recovered in some locations, making the net rate of change in seagrass area experience a reversal in the 2000s, while density metrics improved or remained stable in most sites. Our results demonstrate that decline is not the generalised state among seagrasses nowadays in Europe, in contrast with global assessments, and that deceleration and reversal of declining trends is possible, expectingly bringing back the services they provide.

Blue carbon

10.1038/s41467-019-11340-4

Cite

Citations (327)

EFFECT OF DIFFERENT FORMULATED DIETS AND REARING CONDITIONS ON GROWTH PARAMETERS IN THE SEA URCHIN PARACENTROTUS LIVIDUS

HAL (Le Centre pour la Communication Scientifique Directe) (1998)

Catherine Fernandez Gérard Pergent

World annual production of sea urchins has increased regularly since 1980, and many countries, such as France, are currently confronted with the problem of overexploitation of stocks. For this reason, aquaculture of the sea urchin is a possible solution for the future. The study undertaken here aimed to determine physiological responses (growth) of Paracentrotus lividus given three different feed types varying in quality (vegetable or animal) and biochemical composition and under variable environmental conditions (temperature, light). Experiments in land-based tanks revealed that growth was greater when individuals were fed a mixed formulated feed containing both animal meal and plant meal or containing only animal meal, than when fed a feed containing only plant meal or a natural food, the seaweed Cymodocea nodosa. Maintaining a temperature of 20°C and rearing the sea urchins in the darkness did not have any noticeable effect on growth rate. The growth model established with data obtained from the tank studies for individuals fed the mixed feed indicated that the growth of the sea urchin can be maximized by appropriate feeding. Finally, the different treatments did not bring about any differences in the relative importance of the various body parts (gonads, gut, test, lantern) although the gonadal index in reared sea urchins was very high, even for small individuals (20-25 mm) .

Paracentrotus lividus

Cite

Citations (70)