Estimating migration speed of glass eels during their colonization of a Mediterranean lagoon DOI
Colin Bouchard, Delphine Nicolas

Journal of Fish Biology, Journal Year: 2023, Volume and Issue: 103(5), P. 1113 - 1121

Published: July 27, 2023

Migration speed can have important evolutionary consequences as it affect the timing of arrival, remaining energy reserves, and habitat choice. Environmental conditions individual phenotypic traits impact migration individuals. In this way, estimating is particular importance, especially for species under strong management strategies colonizing highly diversified habitats, case European eel. However, glass eels, which life stage when eels colonize continental presents challenges due to typically low re-capture probabilities difficulties in tagging Using recruitment time series at two sites, one sea connection another inland, we estimated temporal lag between peaks compute speed. Because worked on Mediterranean coasts a lagoon, weak tidal amplitudes may inhibit individuals from efficiently performing selective stream transport. We obtained values coherent with few available literature Atlantic estuaries. The that are lower than those estuaries also tides along lead necessary further studies understand migratory behavior such hydro-systems.

Language: Английский

Mediterranean Coastal Lagoons Review: Sites to Visit before Disappearance DOI Creative Commons
Juan M. Soria, Rebeca Pérez-González, Xavier Sòria‐Perpinyà

et al.

Journal of Marine Science and Engineering, Journal Year: 2022, Volume and Issue: 10(3), P. 347 - 347

Published: March 1, 2022

Coastal lagoons are an established priority habitat in the European environment because of biological communities that inhabit them. Their origin is related to transport sediments from a nearby river or movement sands by marine currents produce closure gulf. Therefore, they recent geological formations, which also disappear quickly if environmental conditions change. The 37 coastal with surface area greater than 10 km2 located Mediterranean basin have been identified. Fishing has traditional use these lagoons, addition their as navigation harbor when open sea. Pollution, quality problems and consequences most studied topics publications. Sentinel-2 images taken summer 2020 used study water transparency, suspended matter chlorophyll concentration. result was only six them good ecological condition, but eutrophic due impacts on inflow poor water. cultural values must be protected preserved.

Language: Английский

Citations

19

Pollution by Polar Pesticides and Pharmaceuticals and Risk Assessment in Surface Water Bodies Along the French Mediterranean Coast: Complementarity of Target and Non-Target Screenings DOI
Nicolas Martin, Geoffroy Duporté, Étienne Lemaire

et al.

Published: Jan. 1, 2025

Language: Английский

Citations

0

Pollution by polar pesticides and pharmaceuticals and risk assessment in surface water bodies along the French Mediterranean coast: Complementarity of target and non-target screenings DOI Creative Commons
Nicolas Martin, Geoffroy Duporté, Étienne Lemaire

et al.

Environmental Chemistry and Ecotoxicology, Journal Year: 2025, Volume and Issue: unknown

Published: April 1, 2025

Language: Английский

Citations

0

A New Multi-Index Method for the Eutrophication Assessment in Transitional Waters: Large-Scale Implementation in Italian Lagoons DOI Open Access
Andrea Bonometto, Emanuele Ponis, Federica Cacciatore

et al.

Environments, Journal Year: 2022, Volume and Issue: 9(4), P. 41 - 41

Published: March 24, 2022

Eutrophication represents one of the most impacting threats for ecological status and related ecosystem services transitional waters; hence, its assessment plays a key role in management these ecosystems. A new multi-index method eutrophication assessment, based on index MaQI (Macrophyte Quality Index), trophic TWQI (Transitional Water physicochemical quality elements (sensu Dir. 2000/60/EC), was developed including both driver impact indicators. The study presents large-scale implementation method, which included more than 100 Italian lagoon sites, covering wide variability typologies conditions. Overall, 35% sites resulted eutrophic status, 45% mesotrophic, 25% oligotrophic status.

Language: Английский

Citations

15

The SAVEMEDCOASTS-2 webGIS: The Online Platform for Relative Sea Level Rise and Storm Surge Scenarios up to 2100 for the Mediterranean Coasts DOI Creative Commons
Antonio Falciano, Marco Anzidei, Michele Greco

et al.

Journal of Marine Science and Engineering, Journal Year: 2023, Volume and Issue: 11(11), P. 2071 - 2071

Published: Oct. 30, 2023

Here we show the SAVEMEDCOASTS-2 web-based geographic information system (webGIS) that supports land planners and decision makers in considering ongoing impacts of Relative Sea Level Rise (RSLR) when formulating prioritizing climate-resilient adaptive pathways for Mediterranean coasts. The webGIS was developed within framework SAVEMEDCOASTS projects, funded by European Union, which respond to need protect people assets from natural disasters along coasts are vulnerable combined effects (SLR) Vertical Land Movements (VLM). geospatial data include available or new high-resolution Digital Terrain Models (DTM), bathymetric data, rates VLM, multi-temporal coastal flooding scenarios 2030, 2050, 2100 with respect 2021, as a consequence RSLR. derived 5th Assessment Report (AR5) provided Intergovernmental Panel on Climate Change (IPCC) encompass different Representative Concentration Pathways (RCP2.6 RCP8.5) climate projections. reports RSLR incorporate temporary contribution both highest astronomical tides (HAT) storm surges (SS), intensify risks infrastructure, local community, environment.

Language: Английский

Citations

8

An Integrated Approach for Evaluating the Restoration of the Salinity Gradient in Transitional Waters: Monitoring and Numerical Modeling in the Life Lagoon Refresh Case Study DOI Open Access

Alessandra Feola,

Emanuele Ponis,

Michele Cornello

et al.

Environments, Journal Year: 2022, Volume and Issue: 9(3), P. 31 - 31

Published: March 1, 2022

Large lagoons usually show a salinity gradient due to fresh water tributaries with inner areas characterized by lower mean values and higher fluctuation of than seawater-dominated areas. In the Venice Lagoon, this ecotonal environment, in past oligo-mesohaline waters large intertidal vegetated reedbeds, was greatly reduced historical human environmental modifications, including diversion main rivers outside Lagoon. The reduction inputs caused marinization lagoon, an increase loss related habitats, biodiversity, ecosystem services. To counteract issue, conservation actions, such as construction hydraulic infrastructures for introduction regulation flow, can be implemented. effectiveness these actions preliminarily investigated then verified through combined implementation monitoring numerical modeling. Through results activity carried out Lagoon framework Life Refresh (LIFE16NAT/IT/000663) project, study is shown successful robust combination different types techniques. particular, characterization obtained acquisition continuous data, field campaigns,

Language: Английский

Citations

9

Human activities disrupt the temporal dynamics of salinity in Spanish rivers DOI Creative Commons
Álvaro Javier Moyano Salcedo, Edurne Estévez, Humbert Salvadó

et al.

Hydrobiologia, Journal Year: 2022, Volume and Issue: 850(20), P. 4531 - 4546

Published: Nov. 18, 2022

Abstract Human activities are not only increasing salinization of rivers, they might also be altering the temporal dynamics salinity. Here, we assess effect human on electrical conductivity (EC) in 91 Spanish rivers using daily measures EC from 2007 to 2011. We expected weakly affected by have low and constant ECs, whereas strongly should high variable ECs throughout year. collected information land use, climate, geology that could explain spatiotemporal variation EC. identified four groups with differences trends covered a gradient anthropogenic pressure. According Random Forest analysis, patterns were mainly driven agriculture, but de-icing roads, mining, wastewater discharges important some extent. Linear regressions showed moderate relationship between variability precipitation, weak geology. Overall, our results show strong evidence disrupt This effects aquatic biodiversity (e.g., organisms adapt frequent unpredictable salinity peaks) incorporated into monitoring management plans.

Language: Английский

Citations

8

Hydrological Monitoring System of the Navío-Quebrado Coastal Lagoon (Colombia): A Very Low Cost, High Value, Replicable, Semi Participatory Solution With Preliminary Results DOI Open Access
Andrea Nardini, Jairo R. Escobar Villanueva, Jhonny Pérez

et al.

Published: July 15, 2024

Like many coastal lagoons in several countries, “Navío Quebrado” lagoon (La Guajira-Colombia) is a very delicate and precious environment; indeed, it nationally recognized Flora Fauna Sanctuary. Several factors, amongst which climate change, are threatening its existence because of changes the governing hydro-morphological processes. A first step to address this problem certainly understand hydrological behavior be able replicate via simulation recent history then infer likely futures. These potential futures will marked by water input tributary, Camarones River, modified exchange with sea, according foreseen sea level rise pattern, as well different evaporation from free surface, temperature changes. In order achieve required ability simulate future scenarios, data on actual have gathered, i.e. monitoring system has set up, date not existent. Conceptually, designing suitable complex issue seems easy implement. However, environmental socio-cultural socio-economic context makes every little hard climb. An extremely simple –almost “primitive”- been up case based basic measurements current velocity levels direct participation local stakeholders, all National Park unit All may clash latest groovy advances science, like situ automatized sensors, remote sensing, machine learning digital twins, improvements possible desirable. But strong positive points: providing surprisingly reasonable and…it working at almost zero additional cost. technical difficulties made exercise interesting itself worth being shared. Its novelty lies showing how old, methods offer solution new challenges. This humble experience help other similar situations across world.

Language: Английский

Citations

1

Spatio-temporal variations in glass eel recruitment at the entrance pathways of a Mediterranean delta DOI
Colin Bouchard, Hilaire Drouineau, Patrick Lambert

et al.

ICES Journal of Marine Science, Journal Year: 2022, Volume and Issue: 79(6), P. 1874 - 1887

Published: July 7, 2022

Abstract Understanding spatio-temporal dynamics of glass eel recruitment is necessary to characterize population status and the stock future elvers. Despite numerous studies that have characterized across Europe, multiple systems along Mediterranean coasts need a deeper look. We built Bayesian State-Space Model investigate temporal variations in Rhône delta (France). The model was suited address spatial heterogeneity due complexity this system constituted by entrance pathways. Over 13 years, we found inter-annual without particular trend. Here, an overall migration peak occurred February–March for system, but substantial resulting were visible. Spatial pointed out necessity account recruitment. highlighted are consistent with analysis coincident time-series other sites Europe (e.g. WGEEL), peak’s timing similar peaks observed estuaries. suggest potential effect local environment conditions on Our provided suitable approach while accounting heterogeneity.

Language: Английский

Citations

6

Phenology and environmental drivers of glass eel entrance in a Mediterranean lagoon DOI Open Access
Raphaël Lagarde,

Jason Peyre,

Elsa Amilhat

et al.

ICES Journal of Marine Science, Journal Year: 2022, Volume and Issue: 79(7), P. 2107 - 2116

Published: Sept. 1, 2022

Abstract The European eel, Anguilla anguilla, is an emblematic facultative catadromous species that spawns in the Sargasso Sea and grow continental waters of Europe North Africa. In most its growing habitats population has dropped since 1980. Although Mediterranean lagoons represent particularly important for knowledge eel ecology not as developed it rivers. Particularly, data on phenology, drivers biometrics characteristics glass entering are scarce. To address this lack data, abundance, pigmentation stage, size, weight Bages-Sigean lagoon (western French Mediterranean) were monitored during 647 d from December 2018 to April 2021 using passive floating traps. Simultaneously, different environmental measured (flow velocity, temperature, rainfalls…). highest abundances eels observed between mid-November mid-March especially when discharge main tributary was higher than base flow. captured peak entrance less pigmented, longer, bigger other months. This work enabled us identify periods anthropogenic activities should be limited decrease human-based impact similar habitats.

Language: Английский

Citations

5