Assemblages of certain benthic molluscs along the southwestern Atlantic: from subtidal to deep sea

Teso, Valeria; Urteaga, Diego; Pastorino, Guido

doi:10.1186/s12898-019-0263-7

Cited by 9 publications

(7 citation statements)

References 30 publications

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“…To assess functional diversity, biological traits were scored for polychaetes, gastropods, and bivalves, three phylogenetically diverse groups composed of a large diversity of species exhibiting a wide range of ecological strategies (Aldea et al, 2008 ; Gosling, 2015 ; Jumars et al, 2015 ; Teso et al, 2019 ). Eight biological traits were selected (Table S2 ), providing information related to the ecological functions performed by the associated macrofauna.…”

Section: Methodsmentioning

confidence: 99%

Environmental filtering and biotic interactions act on different facets of the diversity of benthic assemblages associated with eelgrass

Muller,

Dubois,

Boyé

et al. 2023

Ecology and Evolution

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Eelgrass supports diverse benthic communities that ensure a variety of ecosystem functions. To better understand the ecological processes that shape community composition in eelgrass at local and regional scales, taxonomic and functional α‐ and β‐diversity were quantified for communities inhabiting five meadows in France. The extent to which environmental factors affected local and regional benthic communities was quantified by considering their direct and indirect effects (through morphological traits of eelgrass) using piecewise structural equation modeling (pSEM). Communities supported by eelgrass had higher species abundances, as well as taxonomic and functional diversity compared to nearby bare sediments. No significant differences were found between communities from the center relative to the edges of meadows, indicating that both habitats provide similar benefits to biodiversity. The presence of a few abundant species and traits suggests moderate levels of habitat filtering and close associations of certain species with eelgrass. Nevertheless, high turnover of a large number of rare species and traits was observed among meadows, resulting in meadows being characterized by their own distinct communities. High turnover indicates that much of the community is not specific to eelgrass, but rather reflects local species pools. pSEM showed that spatial variation in community composition (β‐diversity) was primarily affected by environmental conditions, with temperature, current velocity, and tidal amplitude being the most significant explanatory variables. Local richness and abundance (α‐diversity) were affected by both environment and morphological traits. Importantly, morphological traits of Zostera marina were also influenced by environmental conditions, revealing cascading effects of the environment on assemblages. In sum, the environment exerted large effects on community structure at both regional and local scales, while plant traits were only pertinent in explaining local diversity. This complex interplay of processes acting at multiple scales with indirect effects should be accounted for in conservation efforts that target the protection of biodiversity.

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Section: Methodsmentioning

confidence: 99%

Environmental filtering and biotic interactions act on different facets of the diversity of benthic assemblages associated with eelgrass

Muller,

Dubois,

Boyé

et al. 2023

Ecology and Evolution

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“…The combination of high pressure and low temperature limits the physiological performance of shallow-water species and thus limits distribution into deeper areas (Brown & Thatje, 2014). Depth is a main environmental driver of the distribution of marine species between the subtidal and deep-sea (Dias et al, 2018;Frank et al, 2020;Mejía-Mercado et al, 2019;Teso et al, 2019), and a depth effect can be detected over small vertical ranges (0-100 m) (Chappuis et al, 2014;Martins et al, 2013;Thomasson & Tunberg, 2005).…”

Section: F I G U R Ementioning

confidence: 99%

Marine ecoregions and subecoregions within Indo‐West Australian waters: A statistical approach based on species distributions

Hadiyanto

Hovey

Glasby

et al. 2021

Journal of Biogeography

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Aim:The Marine Ecoregions of the World (MEOW) system delineates the oceans into 232 ecoregions. Here, we aimed to evaluate the suitability of this system to represent species distributions within Indo-West Australian waters, explore alternative ecoregions and new subecoregions and investigate environmental variables that are correlated with species distributions within those waters.Location: Indo-West Australia.Taxon: Vertebrates, invertebrates, marine plants. Methods:We downloaded occurrence data for 14,513 marine species from the Ocean Biogeographic Information System. We analysed differences in species composition among nine ecoregions within Indo-West Australian waters using pairwise permutational multivariate analysis of variance to evaluate how well the MEOW system represents species distributions within those waters. We delineated subecoregions within each distinct ecoregion using hierarchical cluster analysis with the unweighted pair-group method using arithmetic averages. We analysed relationships between environmental variables and species composition using distance-based linear models.Results: Species composition was significantly different among ecoregions, except for three adjacent regions, which were combined into a single large ecoregion. Hence, seven distinct ecoregions were further analysed. Our study identified 13 subecoregions within these ecoregions that each separate into 'inshore' and 'offshore' zones.Depth explained the most variation in species composition of the combined taxa and sea surface temperature was the most important parameter in explaining the variability in most taxa. Main Conclusion:The MEOW system did not represent well the distribution of marine species within Indo-West Australian waters. Alternatively, we show that those waters encompass seven distinct ecoregions with 13 subecoregions. The main environmental drivers of species distributions could be depth and sea surface temperature. The proposed ecoregions and subecoregions allow us to improve the biogeographic hypotheses for understanding the evolution of marine species and identify representative marine habitats and species composition for the setting of Marine Protected Area networks within Indo-West Australian waters. | 2247 HADIYANTO eT Al.

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“…To better understand the environment characteristics we decided to classify the horizontal distribution studies as associated with benthic organisms that have habitats and depend on the seafloor substrate to live. Benthic organisms are influenced by physical parameters such as temperature, salinity, and currents (de Araújo et al, 2018;Bremec and Schejter, 2019;Teso et al, 2019). However, chemical processes are mainly responsible for maintenance and variability of biological assemblages' distribution in submarine canyons where the nutrient exchanges are bigger than abyssal regions (Yamashita et al, 2018).…”

Section: Knowledge Of Biological Communitiesmentioning

confidence: 99%

“…Studies which emphasize the creation of MPA's have become more frequent as a result of surveys of biodiversity and delimitation of organisms' distribution (Schejter et al, 2016;Yamashita et al, 2018). As a result, an increase of knowledge of biological communities studies have discovered new species and biodiversity hotspots nearby submarine canyons, such as the research developed on the Argentine coastline (Lauretta and Martinez, 2019;Teso et al, 2019).…”

Section: Change Of Knowledge and The Evolution Of Canyons Studiesmentioning

confidence: 99%

The South American Advances in Submarine Canyons Studies and Their Link to the Ocean Decade

Silva¹,

Araújo²

2021

Front. Mar. Sci.

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Submarine canyons have a relevant role in marine ecosystems. They are responsible for oceanographic conditions such as variability of temperature and salinity, sediment transport, nutrients, and even pollutants amongst marine areas. Submarine canyon studies have been growing and reaching prominence due to their importance in the Blue Economy. Initiatives to promote sustainable development for the ocean have been discussed in the Ocean Decade. Although canyons studies are increasing, how can we integrate these with the Ocean Decade outcomes? Thus, we aim to demonstrate an overview of the advances of submarine canyons studies and their link to the Ocean Decade for South America. We analyzed 160 studies divided into spatiotemporal analysis and study approaches according to the Ocean Decade outcomes. We discuss these articles, building a timeline and argumentative topics considering the advances, and discuss gaps to predict the future of submarine canyons studies in the Ocean Decade and Blue Economy context.

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Assemblages of certain benthic molluscs along the southwestern Atlantic: from subtidal to deep sea

Cited by 9 publications

References 30 publications

Environmental filtering and biotic interactions act on different facets of the diversity of benthic assemblages associated with eelgrass

Environmental filtering and biotic interactions act on different facets of the diversity of benthic assemblages associated with eelgrass

Marine ecoregions and subecoregions within Indo‐West Australian waters: A statistical approach based on species distributions

The South American Advances in Submarine Canyons Studies and Their Link to the Ocean Decade

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