Morane Clavel‐Henry

GEOMAR Helmholtz Centre for Ocean Research Kiel

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Nixon Bahamón

Institut de Ciències del Mar

Joan B. Company

Institut de Ciències del Mar

Guiomar Rotllant

Institut de Ciències del Mar

Jordi Solé

Institut de Ciències del Mar

Marta Carretón

Institut Català de Ciències del Clima

MÁ

Miguel Ángel Ahumada-Sempoal

Universidad del Mar

Florence Briton

Centre National de la Recherche Scientifique

Sandra Heras

University of Girona

Marı́a Inés Roldán

University of Girona

Melania Agulló

University of Girona

Cooperative Institutions

Institut de Ciències del Mar

Institut Català de Ciències del Clima

Consejo Superior de Investigaciones Científicas

Centre National de la Recherche Scientifique

University of Oregon

Centro Mediterráneo de Investigaciones Marinas y Ambientale

University of Aveiro

Ocean Networks Canada Society

University of Victoria

Universitat Politècnica de Catalunya

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Modeling the spatiotemporal distribution of the deep-sea shrimp Aristeus antennatus (Crustacea: Decapoda) on the northwestern Mediterranean continental margin crossed by submarine canyons

Journal of Marine Systems (2020)

Morane Clavel‐Henry Nixon Bahamón Jordi Solé Giulia Gorelli José A. García

Submarine canyon

Continental Margin

10.1016/j.jmarsys.2020.103372

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Citations (5)

Foresight Workshop on Advances in Ocean Biological Observations: a sustained system for deep-ocean meroplankton

Research Ideas and Outcomes (2020)

Marina R. Cunha Luciana Génio Florence Pradillon Morane Clavel‐Henry Stace E. Beaulieu

Recent advances in technology have enabled an unprecedented development of underwater research, extending from near shore to the deepest regions of the globe. However, monitoring of biodiversity is not fully implemented in political agendas and biological observations in the deep ocean have been even more limited in space and time. The Foresight Workshop on Advances in Ocean Biological Observations: a sustained system for deep-ocean meroplankton was convened to to foster advances in the knowledge on deep-ocean invertebrate larval distributions and improve our understanding of fundamental deep-ocean ecological processes such as connectivity and resilience of benthic communities to natural and human-induced disturbance. This Meroplankton Observations Workshop had two specific goals: 1) review the state-of-the-art instrumentation available for meroplankton observations; 2) develop a strategy to implement technological innovations for in-situ meroplankton observation. Presentations and discussions are summarised in this report covering: i) key challenges and priorities for advancing the knowledge of deep-sea larval diversity and distribution: ii) recent developments in technology and future needs for plankton observation, iii) data integration and oceanographic modelling; iv) synergies and added value of a sustained observation system for meroplankton; v) steps for developing a sustained observation system for deep-ocean meroplankton and plans to maximise collaborative opportunities.

Ocean observations

Futures studies

10.3897/rio.6.e54284

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Citations (5)

Abundance and distribution of the deep-sea shrimp Aristeus antennatus larvae along the eastern Spanish Mediterranean coast (GSA 6)

Journal of Marine Systems (2021)

Marta Carretón Guiomar Rotllant Morane Clavel‐Henry Nixon Bahamón Francesc Sardà

The deep-sea blue and red shrimp Aristeus antennatus is a valuable fishing resource in the Northwestern Mediterranean Sea, currently under a local co-management plan in the port of Palamós (Spain). The management measures, although effective, might benefit other ports due to the dispersal patterns of the species pelagic larvae. Gathering information about A. antennatus larval distribution is a key step to describe these patterns, towards the establishment of well-dimensioned management measures. After a first detection of its larvae as the dominant species in the decapod community in Blanes submarine canyon, this broader approach tackles the entire management area along the Eastern Spanish Mediterranean coast (Geographic Subarea 6; GSA 6). Zooplankton sampling was carried out at 101 stations in surface waters (0.5–1 m) and in 8 stations in stratified vertical sampling (0–1200 m) during July–August 2016. Over 6500 A. antennatus larvae of all known stages were found, the first protozoea (PZ I) representing over 95% of the total. This is the first study taking into account the vertical migration of A. antennatus larvae, and we observed a broad distribution of PZ I throughout the water column. Plankton observations of the species larval distribution were supported by an Individual-Based Model suggesting aggregations in the northern submarine canyons, influenced by cold waters from the Northern Current and the geomorphology of the Ibiza Channel. The present study proposes a division of the GSA 6 in three zones to improve fishery management measures.

Submarine canyon

Ichthyoplankton

10.1016/j.jmarsys.2021.103611

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Morphological identification and molecular confirmation of the deep-sea blue and red shrimpAristeus antennatuslarvae

PeerJ (2019)

Marta Carretón Joan B. Company Laia Planella Sandra Heras José‐Luis García‐Marín

The early life stages of the blue and red shrimp Aristeus antennatus (Decapoda: Dendrobranchiata: Penaeoidea: Aristeidae) were described by Heldt in 1955 based on plankton samples, larval rearing and assumptions of species habitat. Even with adequate keys, identification of its first larval stages remained a difficult task due to the lack of specific morphological characters which would differentiate them from other Penaeoidea species. Larvae of Aristeus antennatus were collected in the continental slope off the Spanish Mediterranean coast in August 2016 with a neuston net and preserved in ethanol 96%. DNA from the larvae was extracted and the molecular markers Cytochrome Oxidase I and 16S rDNA were sequenced and compared to that of adults with the objective of confirming the previous morphological description. Then, we present additional information to the morphological description of Aristeus antennatus larval stages through scanning electron microscopy and molecular analysis. This represents the first documented occurrence of Aristeus antennatus larvae off the Catalan coast and sets the grounds for further work on larval ecology and population connectivity of the species, which is an important contribution to a more sustainable fishery.

10.7717/peerj.6063

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Citations (22)

Indicators to assess temporal variability in marine connectivity processes: A semi-theoretical approach

PLoS ONE (2024)

Morane Clavel‐Henry Nixon Bahamón Jacopo Aguzzi Joan Navarro Miguel López

Oceanographic connectivity in an effective network of protected areas is crucial for restoring and stabilising marine populations. However, temporal variability in connectivity is rarely considered as a criterion in designing and evaluating marine conservation planning. In this study, indicators were defined to characterise the temporal variability in occurrence, flux, and frequency of connectivity in a northwestern Mediterranean Sea area. Indicators were tested on semi-theoretically-estimated connections provided by the runs of a passive particle transport model in a climatological year and in three years between 2006–2020, showing large deviation from the climatological year. The indicators allowed comparing the temporal variability in connectivity of four zones, highlighted differences in connectivity due to their locations and the mesoscale hydrodynamics, and identified areas that require further investigation. The three indicators also showed that the temporal variability in connectivity was influenced by the duration and depth of particle transport, although no consistent pattern was observed in the indicator variations of the compared zones. Provided that specific objectives will be given when parameterising transport models (i.e., selection of focus species and time period), indicators of temporal variability in connectivity have potential to support spatial conservation planning, prioritise the protection of marine resources, and measure the effectiveness of Marine Protected Areas, in line with a long-term vision of ocean management.

10.1371/journal.pone.0297730

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Citations (1)

Predicting the export of retention-oriented larvae from their natal population with coastal features: a modelling study on the Pacific oyster

Marine Ecology Progress Series (2023)

Morane Clavel‐Henry T. Dabrowski Rebecca J. Giesler Tasman P. Crowe JM Yearsley

Larvae from many marine coastal species deploy ecological strategies that promote their arrival to geographically close or distant populations. Some larvae adjust their vertical positions in response to the tidal cycle, which, in combination with coastal features, helps keep them relatively close to their natal population instead of being advected offshore (retention-oriented larvae). However, a few of these larvae are transported away from their natal population and spread further afield. In this study, we aimed to better understand the environmental mechanisms that influence the export of retention-oriented larvae by modelling the transport of tidal larvae and using a species distribution model to predict that export rate. The larval transport model was parametrised with ecological data about the Pacific oyster Magallana gigas and tidal larval behaviour from 2 Irish coastal regions. The simulated dispersal of retention-oriented larvae showed that 55-60% of larvae were exported from the 2 regions. This export rate decreased to below 40% if the release occurred in protected and shallow coastal areas. The exportation of larvae occurred relatively early in a larva’s simulated pelagic life (when the larva began to have an active behaviour). When export rate was associated with the coastal features in the 2 Irish regions, wave exposure at the release sites was an important predictor for low (below 20%) and high (above 90%) export rates. The study has implications for the management of coastal grounds since export rates of retention-oriented larvae can be predicted based on knowledge of local hydrodynamics. Our approach could be applied to predict the export rate of other coastal larvae with retention-oriented behaviour.

10.3354/meps14456

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Larval drift of deep-sea shrimp Aristeus antennatus from limited areas of trawling

Morane Clavel‐Henry Jordi Solé Miguel Ángel Ahumada-Sempoal Trond Kristiansen Nixon Bahamón

Forum on Fisheries Science in the Mediterranean and The Black Sea (FishForum 2018), 10-14 December 2018, Rome, Italy

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Larval transport of Aristeus antennatus shrimp (Crustacea: Decapoda: Dendrobranchiata: Aristeidae) near the Palamós submarine canyon (NW Mediterranean Sea) linked to the North Balearic Front

Progress In Oceanography (2021)

Morane Clavel‐Henry Jordi Solé Nixon Bahamón Marta Carretón Joan B. Company

Submarine canyon

10.1016/j.pocean.2021.102515

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Citations (16)

10-Years of imagery from a cabled-observatory reveals a decreasing trend in coastal fish biodiversity

The Science of The Total Environment (2025)

Marco Francescangeli Jacopo Aguzzi Damianos Chatzievangelou Morane Clavel‐Henry Nixon Bahamón

Marine ecosystem

Temperature salinity diagrams

10.1016/j.scitotenv.2024.178139

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Comment on gmd-2021-400

Morane Clavel‐Henry

Abstract. Offline particle tracking (OPT) is a widely used tool for the analysis of data in oceanographic research. Given the output of a hydrodynamic model, OPT can provide answers to a wide variety of research questions involving fluid kinematics, zooplankton transport, the dispersion of pollutants, and the fate of chemical tracers, among others. In this paper, we introduce ROMSPath, an OPT model designed to complement the Regional Ocean Modeling System (ROMS). Based on the Lagrangian TRANSport (LTRANS) model (North et al., 2008), ROMSPath is written in Fortran 90 and provides advancements in functionality and efficiency compared to LTRANS. First, ROMSPath calculates particle trajectories using the ROMS native grid, which provides advantages in interpolation, masking, and boundary interaction while improving accuracy. Second, ROMSPath enables simulated particles to pass between nested ROMS grids, which is an increasingly popular scheme to simulate the ocean over multiple scales. Third, the ROMSPath vertical turbulence module enables the turbulent (diffusion) time step and advection time step to be specified separately, adding flexibility and improving computational efficiency. Lastly, ROMSPath includes new infrastructure which enables inputting of auxiliary parameters for added functionality. In particular, Stokes drift can be input and added to particle advection. Here we describe the details of these updates and performance improvements.

Tracking (education)

10.5194/gmd-2021-400-rc1

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