Anne MougetInstitute of Research for Development | IRD · 195 - Marine Environmental Sciences Laboratory (LEMAR)
Anne Mouget
Master of Science
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21
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Publications (21)
The Canary Current Large Marine Ecosystem (CCLME) is one of the most productive Large Marine Ecosystems worldwide. Assessing the abundance, biomass and distribution of zooplankton in the southern part of this system, off the coast of West Africa, remains challenging due to limited sampling efforts and data availability. However, zooplankton is of p...
Species identification remains crucial for interpreting acoustic backscatter delivered by active acoustic methodologies. The study took place in a Marine Protected Area where highly restricted areas were present such as no take zones. We used an innovative methodology coupling split-beam and multibeam echosounders to detect and classify monospecifi...
Marine communities are strongly structured by bathymetry and distance from the coast. Shallow coastal areas host diverse and abundant fish communities and are subjected to strong anthropo-genic pressures. However, assessments of good ecological status of pelagic fish populations do not generally take into account the ultra-coastal fringe of the coa...
Understanding the relationship between sound scattering layers (SSLs) and pelagic habitat char-acteristics is a substantial step to apprehend ecosystem dynamics. SSLs are detected on echo sounders representing aggregated marine pelagic organisms. In this study, SSL characteristics of zooplankton and micronekton were identified during an upwelling e...
To identify key nonspecific organisational characteristics of the mid-trophic pelagic communities, which remain a challenge, we work with sound scattering layers (SSLs). Application was tested in the three African Atlantic Large Marine Ecosystems (AALMEs) to assess the utility of adapting and developing new acoustic variables. Our methodology allow...
The European Marine Strategy Framework Directive (MSFD) requires the achievement of good ecological status of the marine environment (Ministère de l’Écologie, du Développement durable et de l’Énergie, 2013) for all members of European Union. This directive concerns all the component of the marine environment, including fish. Up to now, fish are are...
Surveying pelagic fish population dynamics in ultra-shallow waters (<20m) is often limited by research vessel size, which not usually navigate in shallow waters. Here, we use a multibeam echosounder to detect fish shoals and assess their characteristics (acoustic density and 3-D morphology) in ultra-shallow waters to follow European Marine Strategy...
An amendment to this paper has been published and can be accessed via a link at the top of the paper.
The resistance of an east border upwelling system was investigated using relative index of marine pelagic biomass estimates under a changing environment spanning 20-years in the strongly exploited southern Canary Current Large marine Ecosystem (sCCLME). We divided the sCCLME in two parts (north and south of Cap Blanc), based on oceanographic regime...
Le projet d’Appui à la Gestion Durable des petits pélagiques en Afrique de l’Ouest (AGD-pélagique) (CSRP-MAVA), a pour objectif d’aider à améliorer la gestion des petits pélagiques en Afrique de l’Ouest. Les outils mis en place dans cette optique sont l’harmonisation et la dématérialisation des formulaires d’enquête de pêche artisanale dans quatre...
Understanding the relationship between sound-scattering layers (SSLs) and pelagic habitat characteristics is a substantial step to apprehend ecosystem dynamics. SSLs are detected on echo sounders representing aggregated marine pelagic organisms. In this study, SSL characteristics of zooplankton and micronekton were identified during an upwelling ev...
Le projet d’Appui à la Gestion Durable des petits pélagiques en Afrique de l’Ouest (AGD-pélagique) logé à la CSRP-et financé par la MAVA, a pour objectif d’aider à améliorer la gestion des petits pélagiques en Afrique de l’Ouest. Pour se faire l’IRD coordonne l’harmonisation et la dématérialisation des formulaires d’enquête de pêche artisanale dans...
Sound scattering layers SSLs distribution and their relationship to pelagic habitat characteristics is a first step to understand their role in ecosystem dynamics and their interactions with other pelagic components such as small pelagic fish. In this study two areas of the Senegalese shelf have been characterized during upwelling season correspond...
Hydroacoustics has become a requisite method to assess fish populations and allows to describe the relationships of fish with other elements of the aquatic ecosystem. This nonintrusive method is currently an integral part of the sampling procedures recommended for fish stock assessment by the Water Framework Directive and has been standardized by t...
Dans le cadre du projet AGD-pélagique (CSRP-MAVA), notre objectif est l’amélioration de la
gestion des petits pélagiques en Afrique de l’Ouest. Les objectifs spécifiques sont l’harmonisation et la dématérialisation des formulaires d’enquête de pêche dans quatre pays de l’Afrique de l’Ouest (Gambie, Guinée-Bissau, Mauritanie et Sénégal) ainsi que cr...
Using the segmentation algorithm within Matecho (Perrot et al., 2018) we are able to deliver 15 descriptors to characterize the acoustic micronektonic lavers in the water column. Even if the species composition is not known, these descriptors which are obtained using the same methodology allow for comparison between ecosvsterns and to study inter-a...
The Guinea Current Large Marine Ecosystem (GCLME) extends from Bissagos Island (Guinea Bissau) in the north (11°N, 16°W) to Cape Lopez (Gabon) in the south (0°S, 8°E) and includes the study zone, from 4°N, 8°W to 6°N, 3°E. Acoustic data were recorded with a 38 kHz echosounder, from 10 to 500 m depth over 7 surveys, 6 were selected here, totalling 1...
Abstract The interest of modelling the effect of oceanographic factors on micronektonic acoustic densities and its variability is relevant in the context of climate change to better understand the environmental processes controlling ecosystem productivity. Ultimately for the stakeholders, we plan to forecast changes induced by climate change effect...
Le substrat est une composante de la morphologie lacustre importante pour les biocénoses et le fonctionnement global des milieux lacustres. Sa caractérisation peut se faire soit par les méthodes traditionnelles (prélèvements à la benne, caméras étanches) qui ne permettent que des mesures ponctuelles, soit à l'aide d'échosondeurs, qui présentent l'a...