An inverse latitudinal biodiversity pattern in asellote isopods (Crustacea, Peracarida) from the Southwest Atlantic between 35° and 56°S

Doti, Brenda Lía; Roccatagliata, Daniel; Gappa, Juan José López

doi:10.1007/s12526-013-0187-y

Cited by 11 publications

(8 citation statements)

References 49 publications

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“…an increase of species richness with higher latitude (e.g. in the North Sea, Heip et al, 1992;Rees et al, 1999; along the Argentina coasts, Doti et al, 2014) or a bell-shaped trend (Gray, 2000;Hummel et al, 2016). Our study revealed a more complex pattern: a bell-shaped curve peaking in Brittany between 47°N to 49°N latitude (Figure 4).…”

Section: Accepted Manuscriptsupporting

confidence: 44%

Regional and latitudinal patterns of soft-bottom macrobenthic invertebrates along French coasts: Results from the RESOMAR database

Gallon

Lavesque

Grall

et al. 2017

Journal of Sea Research

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International audienceThis study aims to describe the patterns of soft bottom macrozoobenthic richness along French coasts. It is based on a collaborative database developed by the “Réseau des Stations et Observatoires Marins” (RESOMAR). We investigated patterns of species richness in sublittoral soft bottom habitats (EUNIS level 3) at two different spatial scales: 1) seaboards: English Channel, Bay of Biscay and Mediterranean Sea and 2) 0.5° latitudinal and longitudinal grid. Total observed richness, rarefaction curves and three incidence-based richness estimators (Chao2, ICE and Jacknife1) were used to compare soft bottom habitats species richness in each seaboard. Overall, the Mediterranean Sea has the highest richness and despite higher sampling effort, the English Channel hosts the lowest number of species. The distribution of species occurrence within and between seaboards was assessed for each major phylum using constrained rarefaction curves. The Mediterranean Sea hosts the highest number of exclusive species. In pairwise comparisons, it also shares a lower proportion of taxa with the Bay of Biscay (34.1%) or the English Channel (27.6%) than that shared between these two seaboards (49.7%). Latitudinal species richness patterns along the Atlantic and English Channel coasts were investigated for each major phylum using partial LOESS regression controlling for sampling effort. This showed the existence of a bell-shaped latitudinal pattern, highlighting Brittany as a hotspot for macrobenthic richness at the confluence of two biogeographic provinces

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Section: Accepted Manuscriptsupporting

confidence: 44%

Regional and latitudinal patterns of soft-bottom macrobenthic invertebrates along French coasts: Results from the RESOMAR database

Gallon

Lavesque

Grall

et al. 2017

Journal of Sea Research

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“…The fact that more species are described in the southern region of the Argentine Sea could be attributable to the concentration of oceanographic campaigns that were performed by international initiatives when travel to Antartica or passing from Pacific to Atlantic Ocean (around Tierra del Fuego and Southern Islands). The major biodiversity encountered in the southern tip of the Southwest Atlantic also could be attributable to an inverse biodiversity pattern that was previously registerd in Southwest Atlantic higher latitudes for some intertidal rocky shore invertebrates (Palomo et al 2011) or other taxa as asellote isopods (Doti et al 2014). The increasing in biodiversity in high latitudes could also be attributable to the presence of high extentions of hard bottoms that permit the settlement of invertebrates and the fact that most Magellanic species that occur in southern Chile extend to the Southwest Atlantic (López Gappa et al 2006).…”

Section: Discussionmentioning

confidence: 70%

Marine invertebrate biodiversity from the Argentine Sea, South Western Atlantic

Bigatti¹,

Signorelli²

2018

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The list of marine invertebrate biodiversity living in the southern tip of South America is compiled. In particular, the living invertebrate organisms, reported in the literature for the Argentine Sea, were checked and summarized covering more than 8,000 km of coastline and marine platform. After an exhaustive literature review, the available information of two centuries of scientific contributions is summarized. Thus, almost 3,100 valid species are currently recognized as living in the Argentine Sea. Part of this dataset was uploaded to the OBIS database, as a product of the Census of Marine Life-NaGISA project. A list of 3,064 valid species, grouped into 1,662 genera distributed in 808 families and 23 phyla, was assessed. The best represented taxa were Arthropoda and Mollusca, contributing approximately with the 50% of the mentioned species in the literature. Cumulative species curves were analyzed in order to estimate the percentage of marine invertebrate biodiversity that is currently known. However, no model fit to our data, showing that the recorded species represent less than 50% of the expected marine invertebrate biodiversity for the Argentine Sea. The great surface of the Argentine Marine Platform (6,581,500 km2) and the relative low effort in collecting and studying new species due to economical restrictions could explain the low fraction of described species. The training of new taxonomists, as well as, the support of projects that contribute to the knowledge of marine invertebrate biodiversity from South Western Atlantic is recommended.

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“…In the south-west Atlantic, between 35° and 56°S, the species richness of asellote isopods is remarkably high south of 47°S (Doti et al , 2014). The three new species described herein were found at lower latitudes (37°–45°S), Pentaceration pleonarietis sp.…”

Section: Discussionmentioning

confidence: 99%

“…nov. and N. argentinenesis sp. nov. were collected deeper than 100 m. Based on the biodiversity patterns of the different invertebrate groups two biogeographic provinces have been recognized in the Argentine Sea, viz: the Argentine Biogeographic Province and the Magellan Biogeographic Province (ABP and MBP, respectively) (Doti et al , 2014; and references therein). An exact limit between these two provinces is difficult to ascertain, Roux et al (1988) studying the distribution of molluscs and echinoderms found that off Mar del Plata (38°–39°S) the transitional area between the ABP and the MBP occurs at a depth of around 76–81 m. Thus, N. argentinensis and N. bicarinatus could be considered as members of the magellan assemblage whereas P. pleonarietis could be part of any of the two assemblages since it was found in the transitional area of both biogeographic provinces.…”

Section: Discussionmentioning

confidence: 99%

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Three new paramunnids (Isopoda: Asellota: Paramunnidae) from the Argentine Sea, South-west Atlantic

Doti

2016

J. Mar. Biol. Ass.

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Three new species of paramunnid isopods are described:Pentaceration pleonarietissp. nov.,Neasellus argentinensissp. nov. andN. bicarinatussp. nov. The three species were collected off Buenos Aires province, the last one was also collected off Chubut province, Argentine Sea. The species belonging toPentacerationrepresents the first record of this genus in the Argentine Sea. The diagnostic characters of the genusNeasellusare revised and besides the inclusion of the two new species herein described, a new combination for the speciesPelagogonium oculatumSchultz, 1977 is proposed.

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An inverse latitudinal biodiversity pattern in asellote isopods (Crustacea, Peracarida) from the Southwest Atlantic between 35° and 56°S

Abstract: An inverse latitudinal biodiversity pattern in asellote isopods (Crustacea, Peracarida) from the Southwest Atlantic between 35°a nd 56°S

Cited by 11 publications

References 49 publications

Regional and latitudinal patterns of soft-bottom macrobenthic invertebrates along French coasts: Results from the RESOMAR database

Regional and latitudinal patterns of soft-bottom macrobenthic invertebrates along French coasts: Results from the RESOMAR database

Marine invertebrate biodiversity from the Argentine Sea, South Western Atlantic

Three new paramunnids (Isopoda: Asellota: Paramunnidae) from the Argentine Sea, South-west Atlantic

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