Giulia Gatti

Giulia Gatti
Septentrion Environnement

PhD in Marine Science

About

54
Publications
10,345
Reads
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639
Citations
Citations since 2016
27 Research Items
575 Citations
2016201720182019202020212022020406080
2016201720182019202020212022020406080
2016201720182019202020212022020406080
2016201720182019202020212022020406080
Additional affiliations
February 2015 - October 2016
January 2011 - March 2014
Università degli Studi di Genova
Position
  • PhD Student

Publications

Publications (54)
Article
Full-text available
In the last ten years, European Directives stressed the necessity to assess the ecological status of marine habitats by means of ecosystem or landscape indicators, rather than just species or chemical ones. In this paper, the seascape approach to characterise and assess the ecological quality of coralligenous rocky shoals of Vado Ligure (Savona, It...
Article
A rapid visual assessment (RVA) approach for the characterization and assessment of the integrity of coralligenous reefs was applied in 21 stations subjected to different levels of anthropogenic pressure, along the French Mediterranean coasts. The reefs were characterized from both the geomorphologic and bionomic (biotic cover,conspicuous species r...
Article
Full-text available
Understanding the effects of environmental change on ecosystems requires the identification of baselines that may act as reference conditions. However, the continuous change of these references challenges our ability to define the true natural status of ecosystems. The so-called sliding baseline syndrome can be overcome through the analysis of quan...
Conference Paper
Full-text available
Les habitats biogéniques dit « coralligènes » sont principalement construits sur les substrats rocheux par des algues rouges calcaires, en condition de luminosité réduite. Leur grande complexité structurale abrite de nombreuses espèces benthiques, faisant de ces habitats un « hotspot » de biodiversité en mer Méditerranée. Néanmoins, les connaissanc...
Article
The genesis and distribution of marine notches around the microtidal Mediterranean basin has been widely debated in recent years. Here we provide new climate and geomorphological insights into the factors controlling notch formation based on the bathymetric distribution of marine notches found in Marseille Bay (NW Mediterranean). In this area, the...
Article
Full-text available
This paper aims at collating and reviewing all data collected using the ESCA (Ecological Status of Coralligenous Assemblages) index from 2009 to 2018 during different local applications, in order to evaluate at large spatial scale its effectiveness and temporal variability. To this scope, the large-scale response of ESCA to anthropogenic disturbanc...
Article
Full-text available
Biotic homogenization is an expected effect of biological invasions. Invasive alien species typically show great adaptability to a wide range of environmental conditions and may expand into different habitats, thus reducing the dissimilarity among the recipient communities. We tested this assumption by analyzing a comprehensive database (78 species...
Article
Hard bottom Sessile macrobenthos Algal cover Infralittoral rocky reefs Mediterranean sea A B S T R A C T Unlike the soft bottom meiofauna, meiofauna associated to hard substrata is poorly studied, despite its ecological relevance. Since communities of hard substrata are usually characterized by species with different life cycles and strategies from...
Chapter
Resilience is the ability of the ecosystem to recover after a perturbation. Assessing the resilience of marine ecosystems in the face of the increasing disturbance regime has become a major concern for their conservation. Among marine ecosystems, animal forests are expectedly little resilient. Their recovery may take long, increasing the risk of hy...
Article
1. This study compared the results obtained through the concurrent use of the two indices ESCA (Ecological Status of Coralligenous Assemblages) and COARSE (COralligenous Assessment by ReefScape Estimate) to define the ecological status of coralligenous reefs. 2. The study evaluated: i) the effectiveness of the two indices at a regional spatial scal...
Article
Full-text available
Background Over the last decade, inventorying and monitoring of marine biodiversity has significantly benefited from the active engagement of volunteers. Although several Citizen Science projects concern tropical reef ecosystems worldwide, none of the existing initiatives has yet specifically focused on their Mediterranean equivalents. Mediterranea...
Article
Full-text available
Background Over the last decade, inventorying and monitoring of marine biodiversity has significantly benefited from the active engagement of volunteers. Although several Citizen Science projects concern tropical reef ecosystems worldwide, none of the existing initiatives has yet specifically focused on their Mediterranean equivalents. Mediterranea...
Data
CIGESMED για δύτες, πολίτες-επιστήμονες για το πρόγραμμα παρακολούθησης των κοραλλιγενών οικοτόπων
Data
CIGESMED for divers – Citizen Science for CIGESMED
Data
CIGESMED pour les plongeurs – Les sciences participatives pour CIGESMED
Data
CIGESMED per i subacquei - Citizen science per CIGESMED
Data
CIGESMED for divers – Citizen Science for CIGESMED
Data
Dalgıçlar için CIGESMED – CIGESMED için Vatandaş Bilimi
Data
Dalgıçlar için CIGESMED – CIGESMED için Vatandaş Bilimi
Data
CIGESMED για δύτες, πολίτες-επιστήμονες για το πρόγραμμα παρακολούθησης των κοραλλιγενών οικοτόπων
Data
CIGESMED pour les plongeurs – Les sciences participatives pour CIGESMED
Data
CIGESMED per i subacquei - Citizen science per CIGESMED
Article
The dearth of long-time series hampers the measurement of the ecosystem change that followed the global marine climate shift of the 1980–90s. The sessile communities of Portofino Promontory reefs (Ligurian Sea, NW Mediterranean) have been discontinuously studied since the 1950s. Collating information from various sources, three periods of investiga...
Conference Paper
Full-text available
Mediterranean coralline reefs, known as " coralligenous " , are bioherms built by calcifying rhodophytes on hard substrates in dim-light conditions. They are hotspots of biodiversity, harbouring rich assemblages and valuable biological resources. The assemblages they host are popular among SCUBA divers due to their complex structure, conspicuous bi...
Conference Paper
Full-text available
Mediterranean coralline reefs, known as " coralligenous " , are bioherms built by calcifying rhodophytes on hard substrates in dim-light conditions. They are hotspots of biodiversity, harbouring rich assemblages and valuable biological resources. The assemblages they host are popular among SCUBA divers due to their complex structure, conspicuous bi...
Technical Report
Full-text available
What is " coralligenous " ? What is commonly called coralligenous is, actually, a complex seascape (i.e. a submerged landscape) developing in dim light conditions, which is present exclusively in the Mediterranean Sea. Coralligenous habitat is mainly created by calcified red algae, which are constructing reef-like structures for thousands of years...
Chapter
Resilience is the ability of the ecosystem to recover after a perturbation. Assessing the resilience of marine ecosystems in the face of the increasing disturbance regime has become a major concern for their conservation. Among marine ecosystems, animal forests are expectedly little resilient. Their recovery may take long, increasing the risk of hy...
Poster
Full-text available
Coralligenous reefs are one of the most important biodiversity hotspots of the Mediterranean Sea. The development and the application of management and protection measures aimed at reaching a Good Environmental Status of coastal ecosystems (MSFD, 2008/56/EC) require a deep knowledge about the distribution, the composition, the functioning of the ha...
Conference Paper
Full-text available
Marine coastal ecosystems are among the most affected by global change and human impacts. The study of historical data is one of the main approaches allowing the identification of pristine (or at least less impacted) conditions to which refer for the evaluation of changes occurred in the communities. In the NW Mediterranean Sea, the rocky bottoms o...
Conference Paper
Full-text available
Coralligenous outcrops represent a "hotspot" of Mediterranean marine biodiversity. Algae and sessile invertebrate taxa (mainly sponges, cnidarians, bryozoans and tunicates) structure the associated benthic assemblages and constitute remarkable seascapes. Nevertheless, this fragile habitat is submitted to a wide array of human impacts such as sewage...
Conference Paper
Full-text available
Coralligenous outcrops represent a "hotspot" of Mediterranean marine biodiversity. Algae and sessile invertebrate taxa (mainly sponges, cnidarians, bryozoans and tunicates) structure the associated benthic assemblages and constitute remarkable seascapes. Nevertheless, this fragile habitat is submitted to a wide array of human impacts such as sewage...
Conference Paper
Full-text available
This paper aims at evaluating the effectiveness of some descriptors obtained from photographic methods and visual assessment techniques to detect changes in ecological quality of coralligenous habitat. From the photographic methods we obtained the following descriptors: i) mean number of the main taxa/morphological groups, ii) mean cover of the mai...
Article
Fifteen sites with coralligenous reefs have been identified along the coast of Liguria. Side scan sonar and/or multibeam data exist for 11 (73%) sites, whereas biological data are available for 13 (86%) sites. Urgent effort is needed to complete and update present knowledge.
Poster
Full-text available
The Mediterranean Sea is hosting almost 10% of the total marine biodiversity in spite of representing less than 1% of the global ocean surface. This regional sea experiences high anthropogenic pressures, such as growing human population density along the coasts, urbanization, (over)harvesting of living and raw resources, extensive maritime traffic,...
Conference Paper
Coralligenous assemblages include algae and invertebrates growing on a secondary hard substrate, generated mainly by the concretion of encrusting calcified red algae. This structurally complex bioconstruction develops only in the Mediterranean Sea and is protected under the European Directive 92/43/EC. The European Marine Strategy Framework Directi...
Conference Paper
Full-text available
Fifteen sites with coralligenous reefs have been identified along the coast of Liguria. Side scan sonar and/or multibeam data exist for 11 (73%) sites, whereas biological data are available for 13 (86%) sites. Urgent effort is needed to complete and update present knowledge.
Conference Paper
Marine coastal ecosystems are among the most affected by global change and human impacts. In the last twenty years, the European Community tried to convince the member states to pay more attention to their marine habitats; the Marine Strategy Framework Directive (MSFD, 2008/56/EEC) requires to preserve the seafloor integrity and to achieve a “good...
Article
Full-text available
Fifteen sites with coralligenous reefs have been identified along the coast of Liguria. Side scan sonar and/or multibeam data exist for 11 (73%) sites, whereas biological data are available for 13 (86%) sites. Urgent effort is needed to complete and update present knowledge.
Article
Full-text available
The Rapid Visual Assessment (RVA) method, proposed for the evaluation of coralligenous quality, was applied on assemblages differently affected by human pressures. Result showed that RVA is able to reveal the health status of the assemblages. Future activities will compare the RVA with an index under development (INDEX-COR).
Conference Paper
It is a common belief that biodiversity is an important descriptor of ecosystems and that sustained functioning of the latter depends on the former. However, research in the last decades did not reach a general consensus about the relationship between biodiversity and ecosystem functioning and this might in part derive from the difficulty of findin...
Conference Paper
The recognition of reference conditions is mandatory to assess status and evolution over time of seagrass meadows. Reference conditions can be defined from: i) historical cartographies, when available and reliable, which is not always the case; ii) data collected in pristine areas, actually very scarce worldwide; iii) modelling. This contribution t...
Conference Paper
Marine coastal ecosystems are among the most vulnerable to global change. A way to evaluate their long-term variation is monitoring sites where long-time series are available, but data sets encompassing time scales longer than a few decades are scarce, especially for Mediterranean rocky reef communities. It might be possible to reconstruct the ecol...
Conference Paper
Coralligenous assemblages include algae and invertebrates growing on a secondary hard substrate, generated mainly by the concretion of encrusting calcified red algae. This structurally complex bioconstruction develops only in the Mediterranean Sea and is protected under the European Directive 92/43/CE. Because of the operational restrictions impose...
Conference Paper
Information on the distribution and abundance of species is often the sole basis for ecological studies that support management decisions. However, different techniques have different ability in revealing the spatio-temporal variation in species distribution and the adoption of the most appropriate sampling method (and sampling unit) is therefore e...
Article
Full-text available
Differences between two visual sampling methods, Point Intercept Transects (PITs) and Visual Quadrats, were investigated on hard bottom subtidal benthic assemblages in the "Isola di Bergeggi" MPA (Ligurian Sea). Results showed that PITs detect differences among sites better than quadrats.

Questions

Question (1)
Question
During the last summers, extensive blooms of mucilaginous algae have been observed along the French Mediterranean and NW Italian (Liguarian Sea) coasts. Does anyone have information about a similar phoenomenon along spanish Mediterranean coasts?
Thak you 

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Projects

Projects (4)
Archived project
CEMOCoast aims to investigate the potential of the Citizen Science (CS) in the assessment of the environmental status of Mediterranean coralligenous reefs. Endemic bioherms built by calcifying Rhodophytes under dim-light conditions, coralligenous reefs sustain several ecosystem services, with high ecological, socio-economic and cultural value. Favourite diving spots in the Mediterranean Sea, they recently became the object of a specific CS initiative: CIGESMED for divers (http://cs.cigesmed.eu). Through the application of a specific observational protocol, CIGESMED for divers provides the collection of data about general features, specific composition and potential threats of coralligenous reefs. The first aim of this project is to investigate whether there is a relationship between the data obtained by CS observations and the ecological status of coralligenous reefs. Once identified the descriptors that better respond to the variation of the health state of the habitat, we aim to develop simplified tools (indicators/indices) to assess coralligenous ecological status on the basis of CS observations. The degradation of coralligenous reefs may have significant consequences from the ecological, socioeconomic and cultural points of view. Therefore, an accurate monitoring is necessary for the sustainable management of the coastal areas, especially in highly anthropized zones. With this project, we intend to provide the knowledge and the methodological bases necessary to implement a CS-based monitoring network in areas (Marseille and Balagne) affected by changing coastal uses and policies.