Sergio Rossi

University of Salento

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Marcelo de Oliveira Soares

Universidade Federal do Ceará

Josep María Gili

Institut de Ciències del Mar

Andrea Gori

Universitat de Barcelona

Stefano Piraino

University of Salento

Lucia Rizzo

Stazione Zoologica Anton Dohrn

Enrique Isla

Institut de Ciències del Mar

D.G. Mita

Istituto Nazionale Biostrutture e Biosistemi

Adriana Giangrande

University of Salento

Lorenzo Bramanti

Sorbonne Université

Covadonga Orejas

Instituto Español de Oceanografía

Cooperative Institutions

Institut de Ciències del Mar

Universidade Federal do Ceará

Consejo Superior de Investigaciones Científicas

Institut Català de Ciències del Clima

Universitat Autònoma de Barcelona

Universidade de São Paulo

University of Salento

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National Research Council

Institute of Genetics and Biophysics

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The importance of coastal gorgonians in the blue carbon budget

Scientific Reports (2019)

Martina Coppari Chiara Zanella Sergio Rossi

Abstract Terrestrial (trees, shrubs) and marine (seaweeds and seagrasses) organisms act as carbon (C) sinks, but the role of benthic suspension feeders in this regard has been largely neglected so far. Gorgonians are one of the most conspicuous inhabitants of marine animal forests (mainly composed of sessile filter feeders); their seston capture rates influence benthic-pelagic coupling processes and they act as C sinks immobilizing carbon in their long-living structures. Three gorgonian species ( Paramuricea clavata , Eunicella singularis and Leptogorgia sarmentosa ) were studied coupling data of population size structure, biomass and spatial distribution in a NW Mediterranean area (Cap de Creus, Spain) with feeding, respiration and growth rates. In the study area, we calculated that P. clavata sequestered 0.73 ± 0.71 g C m −2 year −1 , E. singularis 0.73 ± 0.89 g C m −2 year −1 and L. sarmentosa 0.03 ± 0.02 g C m −2 year −1 . To our knowledge, this is the first attempt to calculate the importance as C sinks of gorgonian species that we consider as a starting point to estimate the importance of marine animal forests in C sequestration, and to ensure appropriate management and protection especially in areas and at depths where they are concentrated.

Gorgonian

Seston

Thalassia testudinum

10.1038/s41598-019-49797-4

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Citations (40)

The effects of exposure to wave action on the distribution and morphology of the epiphytic hydrozoans Clava multicornis and Dynamena pumila

Scientia Marina (2000)

Sergio Rossi Josep María Gili R. G. Hugues

The spatial distribution patterns of two species of epiphytic hydrozoans, Clava multicornis and Dynamena pumila, on the intertidal alga Ascophyllum nodosum were studied in adjacent wave-sheltered and wave-exposed areas.Clava were more abundant on the wave-sheltered algae than on the wave-exposed fronds, and in both areas occupied the basal and middle sections of the algae.There was no difference in the abundance of Dynamena between the wave-sheltered and waveexposed areas, but in both areas Dynamena were most abundant on the basal and apical sections of the algae than on the central sections.The number of hydranths per colony of Clava was higher in the sheltered area than in the exposed area.The hydrocauli of Dynamena on the wave-exposed algae bore fewer hydrothecae than those on the sheltered algae.The proportion of Dynamena hydrothecae that contained hydranths was close to 100% in the sheltered area, but only 70% in the exposed area.It was concluded that variations in distribution and morphology could be caused by the direct or indirect effects of one or more variables, including wave action, feeding rates, and exposure to solar radiation.Experiments are required to elucidate the specific effects of these variables.

Epiphyte

Morphology

10.3989/scimar.2000.64s1135

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Citations (19)

Paleoclimate: Looking for the Importance of Antarctica

Springer eBooks (2022)

Sergio Rossi

Paleoclimatology

10.1007/978-3-030-89492-4_3

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Citations (0)

Effects of the synthetic estrogen 17-α-ethinylestradiol on Drosophila melanogaster: Dose and gender dependence

Ecotoxicology and Environmental Safety (2018)

Tiziana Francesca Bovier Sergio Rossi D.G. Mita Filomena Anna Digilio

Melanogaster

Yolk

Ethinylestradiol

Vitellogenin

Marine invertebrates

10.1016/j.ecoenv.2018.07.020

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Citations (10)

Who’s Next? Non-Indigenous Cnidarian and Ctenophoran Species Approaching to the Italian Waters

Water (2021)

Cinzia Gravili Sergio Rossi

The aims of the present paper were to review the knowledge about the Mediterranean non-indigenous species of the taxa Cnidaria and Ctenophora (CC NIS), to screen the risk of 98 species for their potential invasiveness in the Mediterranean Sea and their approach to the Italian waters. Of these, 38% are well established in the basin, 4% are known for their invasiveness, 44% are casual, 11% have a taxonomic status unresolved, and 3% are included in the category ”cryptogenic”. The biodiversity CC NIS of the Mediterranean Sea has changed considerably in the last two decades and 27 out of 98 Mediterranean CC NIS are present in the Italian waters. Fifteen CC NIS, some equipped with high invasive potential, should be regarded as good candidates to become future immigrants of the Italian waters. Anticipatory NIS forecast based on biogeographical and ecological analyses may provide a useful tool for targeted management of the CC NIS issue and for the assessment of the second descriptor of Good Environmental Status. On the other hand, conservation and management of marine ecosystem should be based on the conservation of the essential environmental conditions for the functioning of these ecosystems instead of the contamination or eradication of alien species.

Marine ecosystem

10.3390/w13081062

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Citations (7)

Emerging endocrine disruptors in two edible fish from the Persian Gulf: Occurrence, congener profile, and human health risk assessment

Marine Pollution Bulletin (2021)

Razegheh Akhbarizadeh Giacomo Russo Sergio Rossi Katarína Golianová Farid Moore

Congener

10.1016/j.marpolbul.2021.112241

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Citations (43)

Changes of energy fluxes in marine animal forests of the Anthropocene: factors shaping the future seascape

ICES Journal of Marine Science (2019)

Sergio Rossi Enrique Isla Mar Bosch-Belmar Giovanni Galli Andrea Gori

Abstract Climate change is already transforming the seascapes of our oceans by changing the energy availability and the metabolic rates of the organisms. Among the ecosystem-engineering species that structure the seascape, marine animal forests (MAFs) are the most widespread. These habitats, mainly composed of suspension feeding organisms, provide structural complexity to the sea floor, analogous to terrestrial forests. Because primary and secondary productivity is responding to different impacts, in particular to the rapid ongoing environmental changes driven by climate change, this paper presents some directions about what could happen to different MAFs depending on these fast changes. Climate change could modify the resistance or resilience of MAFs, potentially making them more sensitive to impacts from anthropic activities (i.e. fisheries and coastal management), and vice versa, direct impacts may amplify climate change constraints in MAFs. Such changes will have knock-on effects on the energy budgets of active and passive suspension feeding organisms, as well as on their phenology, larval nutritional condition, and population viability. How the future seascape will be shaped by the new energy fluxes is a crucial question that has to be urgently addressed to mitigate and adapt to the diverse impacts on natural systems.

Seascape

Marine ecosystem

Marine Spatial Planning

Anthropocene

Marine protected area

10.1093/icesjms/fsz147

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Citations (33)

Marine Forests Forever—A Necessary Multilateral Program for a Fair Future

Aquatic Conservation Marine and Freshwater Ecosystems (2025)

Paulo Antunes Horta Marina Nasri Sissini Alessandra Fonseca Alexander Turra Ana Cláudia Rodrigues

Marine protected area

10.1002/aqc.70037

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Citations (0)

Seasonal Dietary Shifts of the Gammarid Amphipod Gondogeneia antarctica in a Rapidly Warming Fjord of the West Antarctic Peninsula

Journal of Marine Science and Engineering (2021)

In‐Young Ahn Francyne Elias-Piera Sun‐Yong Ha Sergio Rossi Dong-U Kim

The amphipod Gondogeneia antarctica is among the most abundant benthic organisms, and a key food web species along the rapidly warming West Antarctic Peninsula (WAP). However, little is known about its trophic strategy for dealing with the extreme seasonality of Antarctic marine primary production. This study, using trophic markers, for the first time investigated seasonal dietary shifts of G. antarctica in a WAP fjord. We analyzed δ13C and δ15N in G. antarctica and its potential food sources. The isotopic signatures revealed a substantial contribution of red algae to the amphipod diet and also indicated a significant contribution of benthic diatoms. The isotope results were further supported by fatty acid (FA) analysis, which showed high similarities in FA composition (64% spring–summer, 58% fall–winter) between G. antarctica and the red algal species. G. antarctica δ13C showed a small shift seasonally (−18.9 to −21.4‰), suggesting that the main diets do not change much year-round. However, the relatively high δ15N values as for primary consumers indicated additional dietary sources such as animal parts. Interestingly, G. antarctica and its potential food sources were significantly enriched with δ15N during the fall–winter season, presumably through a degradation process, suggesting that G. antarctica consumes a substantial portion of its diets in the form of detritus. Overall, the results revealed that G. antarctica relies primarily on food sources derived from benthic primary producers throughout much of the year. Thus, G. antarctica is unlikely very affected by seasonal Antarctic primary production, and this strategy seems to have allowed them to adapt to shallow Antarctic nearshore waters.

Fjord

Primary producers

Seasonality

Peninsula

Detritus

Isotope Analysis

10.3390/jmse9121447

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Citations (9)

Transfer of seston lipids during a flagellate bloom from the surface to the benthic community in the Weddell Sea

Scientia Marina (2013)

Sergio Rossi Enrique Isla Alfredo Martínez‐García Núria Moraleda Josep María Gili

Total lipid and fatty acid concentrations were studied in a late spring-early summer flagellate-dominated bloom in the Weddell Sea.These indicators were considered a good tool for assessing the quality of organic matter settling from surface to deep-water layers (epibenthic water layers).The results showed different patterns between the early (11-15 December 2003) and the late sampling period (18-27 December 2003) at all studied depths (5 m, 50 m and near-bottom water layers).Low phytoplankton biomass (mainly flagellates) in the first half of the study corresponded to low total lipid and fatty acid concentrations.In the second sampling period a spring bloom (mainly flagellates and diatoms) was detected, increasing the total lipid and fatty acid concentrations in the water column.The amount of settling organic matter from surface waters to the near-bottom water layers was high, especially in the late sampling period.Trophic markers showed evidence of a sink of available organic matter rich in quality and quantity, especially in terms of polyunsaturated fatty acids, for benthic organisms from surface layers to bottom layers in only a few days.The importance of studying short-time cycles in order to detect organic matter availability for benthic biota in view of the pulse-like dynamics of primary production in Antarctic waters is discussed.

Seston

Flagellate

Bloom

10.3989/scimar.03835.30a

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Citations (11)