Patrick Louisy’s research while affiliated with Nice Sophia Antipolis University and other places

What is this page?


This page lists works of an author who doesn't have a ResearchGate profile or hasn't added the works to their profile yet. It is automatically generated from public (personal) data to further our legitimate goal of comprehensive and accurate scientific recordkeeping. If you are this author and want this page removed, please let us know.

Publications (17)


Figure 1. Relations entre type d'observation, type d'observateur, quantité de données collectées et précision des données
Figure 3. Répartition géographique des structures et des comités contactés
Figure 14. Représentation graphique de la stratification spatiale envisagée par les scientifiques
Figure 15. Schémas des étages en Atlantique, Manche et mer du Nord (de Bettignies et al., 2021b)
Figure 21. Planning prévisionnel de l'année et demi de test

+1

Vers un réseau pour le suivi participatif en plongée sous-marine des poissons et habitats rocheux côtiers d'Atlantique, Manche et Mer du Nord
  • Technical Report
  • Full-text available

September 2023

·

323 Reads

Pénélope Teste Du Bailler

·

Eric Stephan

·

Alexandra Rohr

·

[...]

·

L’intérêt des sciences participatives pour les besoins des directives publiques ayant été mis en avant, il convient désormais d’étudier la faisabilité de mettre en place un réseau participatif à large échelle (façades Atlantique, Manche et mer du Nord) pour le suivi protocolé des poissons et des habitats benthiques des milieux rocheux, et de réfléchir à l’organisation optimale que ce réseau pourrait adopter. Pour mener à bien ce travail, une collaboration entre PatriNat, l’Association Pour l’Etude et la Conservation des Sélaciens (APECS) et l’association Peau-Bleue s’est mise en place. Pour les besoins de l’étude, un comité de suivi composé de personnes issues du monde des sciences participatives, de la recherche et de la plongée a également été rassemblé. La mise en place de ce comité a permis d’échanger avec ces différents acteurs au fur à mesure de l’étude et de bénéficier de leurs retours d’expérience. Les attentes étaient aussi de pouvoir prendre en compte leurs ressentis sur la mise en place d’un tel réseau qui les concernera potentiellement et de vérifier la pertinence du réseau tel qu’envisagé à l’issue de l’étude. Ce rapport rend compte des étapes suivies pour évaluer la faisabilité de créer un tel réseau. Pour dimensionner l’intérêt des plongeurs, leur degré d’investissement potentiel et imaginer l’organisation et le fonctionnement de ce réseau, nous avons réalisé un inventaire et une analyse des protocoles sous-marins existants. Nous avons ensuite élaboré une première logique de protocole de suivi participatif et développé des questionnaires pour consulter les structures de plongée et les plongeurs. Au vu des réponses, nous avons finalement proposé une structure pour un futur réseau (différents acteurs et fonctionnement), et défini les étapes à suivre pour son lancement.

Download

Number of records of G. incognitus per country and per sea area.
Results of similarity percentage analysis (SIMPER) to analyze dissimilarity between groups (Av. Diss.: average dissimilarity; Contrib.: contribution; SD: standard deviation). ** -not available.
The Delimitation of Geographic Distributions of Gobius bucchichi and Gobius incognitus (Teleostei: Gobiidae)

February 2023

·

424 Reads

·

5 Citations

Journal of Marine Science and Engineering

Citation: Kovačić, M.; Renoult, J.P.; Pillon, R.; Bilecenoglu, M.; Tiralongo, F.; Bogorodsky, S.V.; Engin, S.; Kovtun, O.; Louisy, P.; Patzner, R.A.; et al. Abstract: After the description of Gobius incognitus Kovačić & Šanda, 2016, all previous knowledge about the geographic distribution of Gobius bucchichi Steindachner, 1870, as well as its ecology and biology, became obsolete, since it represented the data from the mixture of two species. The known geographic distribution of G. bucchichi and G. incognitus is revisited by validating previously published records, but also and foremost by integrating many new photographic records posted by anglers and divers on social media and on citizen science databases. The present research uses only positively identified records with exact data on locality, coordinates and date of collecting. A total of 1024 confirmed records were collected and retained for inferring distribution maps: 805 records of G. incognitus and 219 records of G. bucchichi. Gobius incognitus is a widespread Mediterranean Sea species with limited presence in the Lusitanian province of the Eastern Atlantic Ocean. It is absent from the Sea of Marmara and the Black Sea. Gobius bucchichi is recorded only in the eastern half of the Mediterranean Sea, from the Adriatic to the Aegean Sea, and in the Black Sea and Sea of Marmara.


Les poissons cryptobenthiques de la baie d'Agay (Var). Découverte de deux gobies, espèces nouvelles pour le France. Les cahiers de la fondation Biotope 39 : 1- 58.

February 2023

·

159 Reads

Cryptobenthic fishes are bottom dwelling species that are easily overlooked because of their small size, their colouring similar to the surrounding, or because they live hidden. These species are also often difficult to identify. For these reasons, the diversity of cryptobenthic fishes is one of the least known of the marine world. This Notebook presents the observations of cryptobenthic fishes made in the Bay of Agay, in the French Mediterranean, by a group of naturalist divers, in particular during two missions targeting these species in 2021. Notably, we describe the first records for France of two species of gobies (Buenia massutii and Speleogobius llorisi), the first mention of Gobius gasteveni and the second of Lebetus guilleti for the French Mediterranean. These missions demonstrate that the marine cryptobenthic ichthyofauna of our territory is still understudied, including in the coastal zone accessible to recreational diving



Identification of Mediterranean marine gobies (Actinopterygii: Gobiidae) of the continental shelf from photographs of in situ individuals

June 2022

·

1,233 Reads

·

23 Citations

Zootaxa

Numerous photographs of live fishes posted by anglers and divers on social media and citizen science databases are important sources of information for ichthyological research. However, validating records that extend the known ecology and bathymetric or geographic distribution of species should rely on a rigorous identification process. The family Gobiidae, with their small size, superficial resemblance among species and high species richness are particularly difficult to identify. Therefore, the identification from photographs of live individuals of Mediterranean marine gobies from the continental shelf was studied. A dichotomous identification key is provided based on photographs of live individuals, allowing positive identification of 41 out of the 66 species reviewed in this publication. Then, for all 66 species we provide a brief description of important characters, which can be used for provisional identification for those species that could not be positively identified using the key. Pending further progress in identification of live individuals, we suggest that records extending the known geographic and ecological species distribution be taken into account only if they could be validated using the dichotomous identification key.


Frontiers in Fishwatching Series- Gobies of the North-eastern Atlantic and the Mediterranean: Gobius and Thorogobius

May 2022

·

578 Reads

·

4 Citations

Among the gobiid family, Gobius and Thorogobius include the largest and the most common species of the region. Nevertheless, their field identification is still challenging because their live aspect has rarely been described, and never compared within a single, comprehensive work. This photographic guide, the first of the Frontiers in Fishwatching Series, aims at pushing the limits of Gobies’ identification. • Covers all 20 species of Gobius and Thorogobius • Features 390 underwater photos with detailed captions • Describes key features in a Quick Identification Guide • Species Accounts provide comprehensive descriptions and comparisons with similar species, information on habitats, status and geographic distributions. • Illustrates night colouration, both sexes, juveniles and geographic variation



French ichthyological records for 2019

October 2021

·

708 Reads

·

5 Citations

Cybium: International Journal of Ichthyology

Uncommon fish records may reflect local or global changes of fish composition resulting from environmental changes or anthropogenic activities. Significant records of uncommon marine fishes, including migrant, non-native, cryptic, rare and threatened species, collected in French waters or by French vessels in European waters, observed by scuba divers or beachgoers, are reported for the year 2019. They include first, new, rare and unusual records for the following 33 species: Tetronarce nobiliana, Gymnothorax unicolor, Maulisia mauli, Salmo trutta, Grammonus ater, Photostomias guernei, Ijimaia loppei, Echiodon drummondii, Holocentrus adscensionis, Nerophis lumbriciformis, Scorpaena scrofa, Lepidotrigla dieuzeidei, Eutelichthys leptochirus, Liparis montagui, Mycteroperca rubra, Serranus cabrilla, Remora remora, Caranx crysos, Naucrates ductor, Trachurus picturatus, Seriola rivoliana, Argyrosomus regius, Parablennius pilicornis, Pseudoscopelus astronesthidens, Deltentosteus collonianus, Didogobius schlieweni, Didogobius splechtnai, Gobius couchi, Gobius gasteveni, Lebetus guilleti, Synapturichthys kleinii, Lagocephalus lagocephalus and Mola mola, among which I. loppei, H. adscensionis and P. astronesthidens represent first records for the French waters and additions to the Checklist of the marine fishes from metropolitan France. Photostomias guernei is a first record for the Bay of Biscay, found close the French EEZ.


New records of marine invertebrates from the coast of Gabon, Eastern Atlantic

March 2020

·

298 Reads

·

9 Citations

An underwater inventory mission was conducted in November 2017 by six naturalists on the north rocky coast of Gabon between Cape Esterias and Cape Santa Clara. The following twenty-six species are recorded from the coast of Gabon for the first time : the protozoan Zoothamnium niveum, the octocoral Carijoa riisei, the sea anemone Actinostella flosculifera, the plathelmint Pseudobiceros wirtzi, nine opisthobranch molluscs, the polychaete Eurythoe sp., the mudshrimp Neaxius mclaughlinae, seven species of true shrimps, a possibly undescribed pagurid hermit crab, the mantis shrimp Protosquilla sp., the cirriped Conopea saotomensis, and the sea cucumber Isostichopus cf badionotus. For some of these species, this is a large extension of the known range of distribution. The poorly explored coasts of Gabon apparently harbour many still undetected species.


French ichthyological records for 2018

January 2020

·

48 Reads

·

4 Citations

Uncommon records of fishes may evidence local or global changes in fish composition resulting from environmental change or anthropogenic activities. Significant records of uncommon marine fishes, including migrant, non-native, cryptic, rare and threatened species, collected in french waters or by french vessels in European waters, observed by scuba divers or beachgoers, are reported for the year 2018. They include first, new, rare and unusual records for the following 52 species: Hexanchus griseus, Squatina squatina, Gymnura altavela, Acipenser sturio, A. gueldenstaedtii, Dalophis imberbis, Nemichthys curvirostris, Eurypharynx pelecanoides, Maulisia mauli, M. microlepis, Sagamichthys schnakenbecki, Melanostomias bartonbeani, Astronesthes niger*, Leptostomias gladiator*, Chlorophthalmus agassizi, Magnisudis atlantica, Evermannella balbo, Regalecus glesne, Luvarus imperialis, Raniceps raninus, Fistularia cf. petimba*, Trigla lyra, Lepidotrigla dieuzeidei, Micrenophrys lilljeborgii, Howella atlantica*, Pomatomus saltatrix, Serranus cabrilla, Caranx crysos, Seriola rivoliana, Trachinotus ovatus, Lobotes surinamensis, Sarpa salpa, Chelon ramada, Pseudoscopelus altipinnis*, Trachinus draco, Parablennius pilicornis, P. ruber, Buenia affinis, B. jeffreysii, Chromogobius zebratus, Didogobius splechtnai, Gammogobius steinitzi, Gobius couchi, G. kolombatovici, Lebetus sp., Speleogobius trigloides, Thorogobius macrolepis, Vanneaugobius dollfusi, Siganus rivulatus*, Lepidocybium flavobrunneum, Hyperoglyphe sp. et Pegusa cf. nasuta, among which six, marked with an asterisk (*), represent additions to the Checklist of the marine fishes from metropolitan France and one, N. curvirostris, is a first record for the Mediterranean.


Citations (11)


... rejecting the null hypothesis when it is true), guarantee reliability, reduce variability, and eliminate outliers, duplicates, and double entries are important tasks for filtering social media data ( The filtering process usually excludes records not related to the target species, country, or locality and duplicates of previous records (Sbragaglia et al. 2021a(Sbragaglia et al. , 2022. Records with different localities or records with the same locality but different dates may be considered distinct entries (Kovačić et al. 2023). Social media users may also be contacted for factchecking and extracting information about the species' occurrence as accurately as possible (Di Camillo et al. 2018, Ammendolia et al. 2022. ...

Reference:

Passive citizen science: Social media as a tool for marine wildlife observation
The Delimitation of Geographic Distributions of Gobius bucchichi and Gobius incognitus (Teleostei: Gobiidae)

Journal of Marine Science and Engineering

... Among the European ichthyofauna, Gobiidae and Oxudercidae ('gobies' hereafter) represent one of the most species-rich groups. Comprising 97 native and 12 alien species, they are broadly distributed in the North-Eastern Atlantic, the Mediterranean Sea and the Black Sea (Renoult et al. 2022). Their great diversity, together with the cryptic behaviours and rarity of several species, often poses challenges for species identification, especially when individuals are very small or species are closely related (e.g. ...

Frontiers in Fishwatching Series: Gobies of the North-eastern Atlantic and the Mediterranean: Gobius and Thorogobius
  • Citing Article
  • May 2022

... However, gobiid diversity decreases with increasing latitude and is markedly reduced in colder temperate waters (Kovačić and Svensen, 2018). along the european coast of the eastern atlantic ocean, species richness within the Gobiidae is significantly lower than in the warm temperate Mediterranean region (Miller, 1986;Kovačić et al., 2022). Gobius gasteveni Miller, 1974 is one of the gobiid species found in both the Mediterranean and the north-eastern Atlantic (Miller, 1986;Kovačić et al., 2022). ...

Identification of Mediterranean marine gobies (Actinopterygii: Gobiidae) of the continental shelf from photographs of in situ individuals

Zootaxa

... With 2,949 currently recognized species, Gobiidae is the most species-rich family of fishes (Fricke et al., 2023;Renoult et al., 2022). Gobies are found in both marine and freshwater environments . ...

Frontiers in Fishwatching Series- Gobies of the North-eastern Atlantic and the Mediterranean: Gobius and Thorogobius

... Previously, the species has been reported in European Atlantic waters, including the Celtic Sea (Du Buit and Quéro 1989), Northern Spanish waters (Punzón and Serrano 1998;Guerra and Laria 2012), off NW Scotland (Iglésias 2014), and the French part of the Bay of Biscay (Iglésias et al. 2021 record fills a gap in the range occurrence of the species in the Eastern Atlantic Ocean. Morphometric and meristic data are provided and compared to those documented in the literature. ...

French ichthyological records for 2019

Cybium: International Journal of Ichthyology

... These swarmers produced (6); Red sea (7); Tokyo bay (8); White Point Beach in California, USA available genome for Thiobius zoothamnicola, this paper (9); Indian River Lagoon as well as Pete stone's creek located in Florida, USA (10); Madeira Island (11); São Tomé Island (12); Gabon (13); Giglio Island, Italy (14); and Cyprus Island (15). Supplementary Table S1 provides more details on the Z. niveum locations, including literature citations: (Indian River Lagoon Species Inventory, n.d.; Frenkiel et al., 1996;Wirtz and Debelius, 2003;Nyholm and McFall-Ngai, 2004;Goffredi et al., 2005;Wirtz, 2008;Laurent et al., 2009;Kawato et al., 2010;Petersen et al., 2011;Laurent et al., 2013;Lorion et al., 2013;Riehl and Frederickson, 2016;Wirtz, 2018;Wirtz and Serval-Roquefort, 2020;Sogin et al., 2020;Roger et al., 2021;Fokin and Serra, 2022;Lin et al., 2023). ...

New records of marine invertebrates from the coast of Gabon, Eastern Atlantic

... Both population sizes seemed small compared to other seahorse populations, as was reported for H. guttulatus in Thau lagoon (Riquet et al., 2019) with an estimate of 2,742 individuals. In addition, a recent study reported an estimated population of 28,763 individuals for the Knysna seahorse Hippocampus capensis in Africa (Mkare et al., 2021). ...

Effective population size and heterozygosity-fitness correlations in a population of the Mediterranean lagoon ecotype of long-snouted seahorse Hippocampus guttulatus

Conservation Genetics

... L'intérêt des programmes de sciences participatives pour apporter des données complémentaires et ainsi aider à mieux répondre aux impératifs du D1-Poissons/Céphalopodes et du D4-Réseau trophique a déjà été démontré (Louisy et al., 2019) et est régulièrement mis en avant pour faciliter la gestion à l'échelle des Aires Marines Protégées. Pouvoir inclure des plongeurs loisir dans les suivis en plongée aiderait à apporter des données pour un grand nombre de sites avec une meilleure couverture spatio-temporelle sur les façades Atlantique, Manche et mer du Nord. ...

Programmes de surveillance DCSMM des poissons céphalopodes des milieux côtiers. Dans quelle mesure les sciences participatives peuvent elles y contribuer?

... The size at sexual maturity and maximum size of mesopelagic fishes in partially enclosed seas is smaller than of their openwater Atlantic counterparts (Gartner 1991). To our knowledge the hypothesis of different populations of glacier lanternfish across different habitats has never been tested with molecular genetic methods; however, there is vast evidence of geneticallyidentified ecotypic differentiation in other marine taxa either driven by bathymetry as in beaked redfish (Sebastes mentella) (Benestan et al. 2021), salinity as in European sprat (Sprattus sprattus) Pettersson et al. 2024), and marine versus coastal habitat such as in European anchovy (Engraulis encrasicolus) (Le Moan, Gagnaire, and Bonhomme 2016), longsnouted seahorse (Hyppocampus guttulatus) (Riquet et al. 2019;Meyer et al. 2024), northern shrimp (Pandalus borealis) (Hansen et al. 2021) or Atlantic cod (Gadus morhua) (Knutsen et al. 2018), to mention a few. ...

Parallel pattern of differentiation at a genomic island shared between clinal and mosaic hybrid zones in a complex of cryptic seahorse lineages

Evolution

... Bailly (2016) pointed out that this species probably also occurs at the coasts of Angola and Namibia but reliable records from this area are missing. Holacanthus africanus is a littoral species, living between 1 (Falcón et al. 2018;Menut et al. 2018). In the present survey, it was found close to a shipwreck in Dive #1 and Dive #2 (Fig. 2). ...

Exploration naturaliste sous-marine des petits fonds rocheux du Cap Santa Clara au Cap Esterias, Province de l’Estuaire, Gabon : les poissons marins.