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

نویسندگان

چکیده

• Pelagic larvae were retained in a zone of density front. Interannual variability the larval retention rates was low. Larval and front position correlated. Marine fronts are oceanographic drivers for marine species dispersal, especially their pelagic organisms like larvae. Larvae can aggregate at consequently have limited which turn reduces connectivity between populations. Due to high variations ocean, also annual changes (i.e., its formation period, gradient, position), poorly-documented effects on retention. In northwestern Mediterranean Sea, surface is localized across continental margin indented by submarine canyons. There, an abundant population commercial deep-sea blue red shrimp Aristeus antennatus (Crustacea: Decapoda: Dendrobranchiata: Aristeidae) inhabits seafloor. Each summer, offspring released access superficial waters divided this study, we focused interannual influence transport shrimps repercussions potential populations each side. A particle-tracking model simulated A. hydrodynamics Sea years 2006 2016. drift distance seawater correlated 98%. Over 2006–2016, region 86% larvae, but rate yearly varied due gradient For example, 2010, 48% connected zones south when relatively 2015, 99.2% latitudinal high. potentially related strength mesoscale circulation patterns. Our findings suggest that habitats favored canyon productivity because could explain persistent abundance population. This information important set or improve fisheries management with strong hydrodynamic variability.

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ژورنال

عنوان ژورنال: Progress in Oceanography

سال: 2021

ISSN: ['0079-6611', '1873-4472']

DOI: https://doi.org/10.1016/j.pocean.2021.102515