Biodiversity of Isopoda and Cumacea (Peracarida, Crustacea) from the Marine Protected Area Namuncurá-Burdwood Bank, South-West Atlantic

Abstract

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Decapods of the Southern Tip of South America and the Marine Protected Area Namuncurá–Burdwood Bank: A Nearshore–Offshore Comparison

“…Dominant currents derived from the ACC transport particles both northwards and eastwards [93], connecting the coastal environments (the MS and the BC) with the Atlantic shelf and the BB. As there are no physical barriers in the BB [4,26,51], the shared decapod species (17 and 13 with the BC and MS, respectively) could be a product of larval transport from the west, as the water−retention process on the BB lasts approximately 70 days [12] allowing larval settlement.…”

“…For invertebrates other than decapod crustaceans, the role of the BB on their distribution is variable. For example, in the BB, isopods, cumaceans, polychaetes, or bryozoans are typically Magellanic [26][27][28], whereas asteroids have higher richness at the BB than off the Atlantic coast of southern South America [29]. The distribution of molluscs, one of the most diverse groups at the BB, is controversial according to different authors: they are likely segregated by depth, distributed according to water masses and extending their distribution northwards through deep, cold waters [30], or the BB could be a place for endemism for some groups [31].…”

High Species Richness and Extremely Low Abundance of Cumacean Communities Along the Shelf and Slope of the Gulf of Guinea (West Africa)

“…They are often found in the first few centimeters of sediments and occur from the intertidal, down to abyssal depths (Watling and Gerken, 2021). Cumacea are significant element of benthic communities, that in particular regions or depth zones (e.g., deep sea and tropical areas) might be one of the most diverse groups of crustaceans (Jones and Sanders, 1972;Cartes et al, 2003;Doti et al, 2020). For example, at the upper slope off Portugal, Cumacea together with Isopoda reached the highest number of the species (Cunha et al, 1997); while in the Angola Basin off Namibia, they were the third most abundant group of Peracarida, after Isopoda and Tanaidacea (Brandt, 2005).…”

First evidence of microplastics in the Marine Protected Area Namuncurá at Burdwood Bank, Argentina: a study on Henricia obesa and Odontaster penicillatus (Echinodermata: Asteroidea)

“…It is an area of intense upwelling and mixing that causes the transport of nutrients from bottom waters to the eutrophic layer enhancing biological productivity in the bank (Matano et al 2019). It holds a great diversity of benthic organisms, including ecosystem engineers, species with significant influence in the creation, modification, and maintenance of habitats (Schejter et al 2016(Schejter et al , 2020Fraysse et al 2018;Bremec et al 2019;Di Luca and Zelaya 2019;Schejter and Bremec 2019;Doti et al 2020). Despite the extensive studies carried out in the MPA Namuncurá/Burdwood Bank (hereafter referred to as MPA Namuncurá), none of them have addressed the issue of MPs.…”