![]() According to those mechanisms, the larvae can be retained on the spawning places or connect to other areas that are of high interest for species with high commercial value. Larvae have several mechanisms for positioning themselves in productive and favorable waters that optimize their growth and displacement. ![]() For benthic species, the distribution of the species mostly relies on the transported larvae. Larval cycle is a relatively short time lapse compared to the life cycle of marine animal, but it is the phase when large dispersions occur. Numerous species have a pelagic larval cycle which links the spawning places to the recruitment areas. ![]() The funder had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.Ĭompeting interests: The authors have declared that no competing interests exist. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.ĭata Availability: All relevant data are within the paper and its Supporting Information files.įunding: This work was supported by the Ministerio de Economía, Industria y Competitividad, Gobierno de España (BES-2015-074126) to support her PhD within the CONECTA project (CTM2014-54648-C2-1-R) to MC-H. Received: SeptemAccepted: DecemPublished: January 29, 2020Ĭopyright: © 2020 Clavel-Henry et al. PLoS ONE 15(1):Įditor: Atsushi Fujimura, University of Guam, GUAM ![]() antennatus larval ecology and for management decisions related to the shrimp fisheries in the northwestern Mediterranean Sea.Ĭitation: Clavel-Henry M, Solé J, Kristiansen T, Bahamon N, Rotllant G, Company JB (2020) Modeled buoyancy of eggs and larvae of the deep-sea shrimp Aristeus antennatus (Crustacea: Decapoda) in the northwestern Mediterranean Sea. The results of larval dispersal simulations have implications for the understanding of A. The larvae reaching the most water upper layer (0–5 m depth) had higher rates of dispersal than the ones transported below the surface layer (deeper than 5 m depth). The number of larvae in the most upper layer (0–5 m depth) was higher if the larval transport model accounted for the ascent of eggs and nauplii (81%) instead of eggs reaching the surface before hatching (50%). Then, according to the modeled larval drifts, three spawning regions were defined in the studied area: 1) the northern part, along a continental margin crossed by large submarine canyons 2) the central part, with two circular circulation structures (i.e., eddies) and 3) the southern part, with currents flowing through a channel. The transport models suggested that 75% of buoyant eggs released between 500 and 800 m depth (i.e., known spawning area), reached the upper water layers (0–75 m depth). antennatus’ larvae in the northwestern Mediterranean Sea. Using a Lagrangian transport model and larval characteristics, we evaluate the buoyancy and hydrodynamic effects on the transport of A. In the northwestern Mediterranean Sea, protozoea and mysis larvae of the commercial deep-sea shrimp Aristeus antennatus were recently found in upper layers, but to present, earlier stages like eggs and nauplii have not been collected. Nevertheless, it has hardly been explored if this buoyancy variability can be a strategy for deep-sea larvae to optimize their transport beyond their spawning areas. Due to embryonic morphology and ecology diversities, egg buoyancy has important variations within one species and among other ones. Information on the buoyancy of eggs and larvae from deep-sea species is rare but necessary for explaining the position of non-swimming larvae in the water column.
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