Biomonitoring of Posidonia oceanica beds by a multiscale approach

Cozza, Radiana; Rende, Sante Francesco; Ferrari, Marco; Bruno, Leonardo; Pacenza, Marianna; Dattola, Luigi; Bitonti, Maria Beatrice

doi:10.1016/j.aquabot.2019.04.002

Cited by 10 publications

(7 citation statements)

References 52 publications

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“…Posidonia oceanica is considered a vulnerable species, largely susceptible to perturbations, and is thus included within Habitats Directive (92/43/EEC), which supports the Natura 2000 network of European protected areas. From a conservation perspective, and considering future increase in both anthropogenic and climatic pressures (Mannino 2018), the assessment and management of environmental quality require an adequate knowledge of the ecosystems that can be obtained only by multidisciplinary investigations (Cozza et al 2019;Domina et al 2018). Therefore further studies focused on the intra-variability of the meadows, by analyzing the allelic richness (Jahnke et al 2015), are needed.…”

Section: Resultsmentioning

confidence: 99%

Assessment of the ecological structure of Posidonia oceanica (L.) Delile on the northern coast of Lazio, Italy (central Tyrrhenian, Mediterranean)

Gnisci¹,

Martiis²,

Belmonte³

et al. 2020

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The ecological structure of Posidonia oceanica (L.) Delile meadows was evaluated on the northern coast of Lazio, Italy (central Tyrrhenian, Mediterranean sea). This is an infra-littoral zone with a wide range of anthropogenic activities and high geo-morphological variability, which reflects heterogeneity in shoot density, leaf morphology and biomass in fragmented patches. Genetic variability in populations corresponds to the formation of 3 sub-clusters, in the diverse impacted zones (north, centre and south), being correlated to the geographical distance between sites. AMOVA estimated a high genetic variation showing 43.05% individual differences within populations with a marked differentiation among the populations (56.9%) indicated by Fst value (0.57). These results revealed the role of the genetic structure of seagrasses for determining selectivity of fragmented habitat, in response to natural drivers. They showed that site-specific self-recruitment is related to biodiversity capacity and to the geo-morphological characteristic of the coast.

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Section: Resultsmentioning

confidence: 99%

Assessment of the ecological structure of Posidonia oceanica (L.) Delile on the northern coast of Lazio, Italy (central Tyrrhenian, Mediterranean)

Gnisci¹,

Martiis²,

Belmonte³

et al. 2020

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“…Even if additional researches are necessary to define thresholds for classifying the different level of perturbation, the obtained results open interesting perspectives on the application of the phenol content in Cystoseira sensu latu and P. oceanica as possible biomarkers of environmental quality. In monitoring surveys, the assessment of health marine ecosystems should make provision for multidisciplinary investigations [161,162] and multiparametric approaches, including physiological biomarkers, biomarkers of general stress and more specific biomarkers [131], but also molecular ones [16,27,140,163].…”

Section: Discussionmentioning

confidence: 99%

Ecological Function of Phenolic Compounds from Mediterranean Fucoid Algae and Seagrasses: An Overview on the Genus Cystoseira sensu lato and Posidonia oceanica (L.) Delile

Mannino

Micheli

2020

JMSE

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Biodiversity is undergoing rapid and worrying changes, partially driven by anthropogenic activities. Human impacts and climate change (e.g., increasing temperature and ocean acidification), which act at different spatial scales, represent the most serious threats to biodiversity and ecosystem structure and function. In the Mediterranean Sea, complex systems such as fucoid algae and seagrasses, characterized by a high associated biodiversity, are regularly exposed to natural and anthropogenic pressures. These systems, particularly sensitive to a variety of stressors, evolved several physiological and biochemical traits as a response to the different pressures which they are subjected to. For instance, they produce a huge quantity of secondary metabolites such as phenolic compounds, to adapt to different environmental stressors and to defend themselves from biological pressures. These natural products are receiving increasing attention due to their possible applications in a wide range of industrial sectors. In this paper we provide an overview on the ecological role of phenolic compounds from the genus Cystoseira sensu lato and Posidonia oceanica (L.) Delile, also highlighting their potential use as ecological biomarkers.

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“…Remote sensing would be very effective in obtaining a spatial and temporal survey of the meadows, through the generation of a broad and synoptic view of the coastal system, and a complete study of biotic and abiotic variables [200,[211][212][213][214]. Aquatic ecosystems are indeed characterized by strong optical signals deriving from the distinctive photosynthetic pigments of the various plant groups, from phytoplankton to submerged or emerged macroalgae, from marine phanerogams to coastal-terrestrial plants [215].…”

Section: Application 4: Posidonia Oceanica Monitoringmentioning

confidence: 99%

A New Orbiting Deployable System for Small Satellite Observations for Ecology and Earth Observation

et al. 2022

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In this paper, we present several study cases focused on marine, oceanographic, and atmospheric environments, which would greatly benefit from the use of a deployable system for small satellite observations. As opposed to the large standard ones, small satellites have become an effective and affordable alternative access to space, owing to their lower costs, innovative design and technology, and higher revisiting times, when launched in a constellation configuration. One of the biggest challenges is created by the small satellite instrumentation working in the visible (VIS), infrared (IR), and microwave (MW) spectral ranges, for which the resolution of the acquired data depends on the physical dimension of the telescope and the antenna collecting the signal. In this respect, a deployable payload, fitting the limited size and mass imposed by the small satellite architecture, once unfolded in space, can reach performances similar to those of larger satellites. In this study, we show how ecology and Earth Observations can benefit from data acquired by small satellites, and how they can be further improved thanks to deployable payloads. We focus on DORA—Deployable Optics for Remote sensing Applications—in the VIS to TIR spectral range, and on a planned application in the MW spectral range, and we carry out a radiometric analysis to verify its performances for Earth Observation studies.

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Biomonitoring of Posidonia oceanica beds by a multiscale approach

Cited by 10 publications

References 52 publications

Assessment of the ecological structure of Posidonia oceanica (L.) Delile on the northern coast of Lazio, Italy (central Tyrrhenian, Mediterranean)

Assessment of the ecological structure of Posidonia oceanica (L.) Delile on the northern coast of Lazio, Italy (central Tyrrhenian, Mediterranean)

Ecological Function of Phenolic Compounds from Mediterranean Fucoid Algae and Seagrasses: An Overview on the Genus Cystoseira sensu lato and Posidonia oceanica (L.) Delile

A New Orbiting Deployable System for Small Satellite Observations for Ecology and Earth Observation

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