The MAREL (Mesures Automatisées en Réseau pour l’Environnement Littoral) Carnot system developed and implemented by Ifremer (French Research Institute for Exploitation of the sea) in 2004 is a moored buoy equipped with physico-chemical and biological measuring devices working in continuous and autonomous conditions. The system is located in the Boulogne-sur-Mer harbor (eastern English Channel) influenced both by marine coastal and fresh waters. The measuring station is equipped with high performance systems for seawater analysis and near real time data transmission.

Gathering together researchers of various disciplines and from diverse institutes located along the Channel (several IFREMER laboratories, several French universities, English laboratories, universities and NGO), the IBTS cruises on board the RV Thalassa aims at sampling the entire English Channel (EC) and part of the North Sea (NS) ecosystems: hydrology, planktonic compartments including fish eggs and larvae, benthic invertebrates, pelagic, demersal and benthic fish and cephalopods, marine birds and mammals. To do so, the EC-NS area was sampled by complementary techniques: hydrological probe, Niskin bottle, high frequency measurements systems such as Pocket Ferry Box, LOPC, plankton nets, GOV trawl, pelagic trawl, grab, dredge, ROV for sub-marine video, multibeam echosounders and visual observations.

Gathering together researchers of various disciplines and from diverse institutes located along the Channel (several IFREMER laboratories, several French universities, English laboratories, universities and NGO), the CAMANOC 2014 cruise on board the RV Thalassa aims at sampling the entire English Channel (EC) ecosystem: hydrology, planktonic compartments including fish eggs and larvae, benthic invertebrates, pelagic, demersal and benthic fish and cephalopods, marine birds and mammals. To do so, the EC area was sampled by complementary techniques: hydrological probe, Niskin bottle, high frequency measurements systems such as Pocket Ferry Box, LOPC, plankton nets, GOV trawl, pelagic trawl, grab, dredge, ROV for sub-marine video, multibeam echosounders and visual observations.

Noorvegian margin datasets (Vicking and ARK) were part of the Hermes project. The objective was to provide an comprehensive and integrative study of the faunal communities of the different habitats of the Haakon Mosby Mud Volcano and a first description of communities of the Storrega pockmarks. This study was combined with microbial (MPI) and chemical (MPI, Ifremer) characterisation of the same habitats.

The Etoile cruise was firstly designed to understand hydrological dynamics in the Bay of Biscay. Besides, a physical-biological coupling was effective (JERICO-Next JRAP#1 and JRAP#4) by including phytoplankton monitoring in surface and at some water column depths. One of the objectives of the cruise was to characterize phytoplankton distribution at meso/sub-meso-scale using automated flow cytometer and multispectral fluorometry. These measurements should be complementary to discrete sample at three depths (surface, sub-surface and chlorophyll maximum).

<p>This dataset gathers data used to determine seasonal and ontogenic variation of whiting (Merlangius merlangus) diet in the Eastern English Channel and south of the North Sea : (1) Individual C and N isotopic ratios, length and mass, for all individuals considered (2) Individual stomach content data. In the stomach content database, each individual is represented by several lines, each line representing one prey type.</p>

<p>Since its establishment in 2010, the Mayotte Marine Natural Park has been promoting fishing activities beyond the lagoon, specifically targeting pelagic species to alleviate fishing pressure on reef species. However, despite these efforts, catches of reef fish remain notably high. In 2020, reef carnivores (groupers, snappers…), constituted approximately 35% of the total catches. Ensuring the sustainability of reef fishing necessitates regular assessments of Mayotte's commercial reef fish populations.-nbsp;</p>