New records of scleractinian cold-water coral (CWC) assemblages in the southern Tyrrhenian Sea (western Mediterranean Sea): Human impacts and conservation prospects

Angiolillo, Michela; Mesa, Gabriele La; Giusti, Michela; Salvati, Eva; Lorenzo, Bianca Di; Rossi, Lorenzo; Canese, Simonepietro; Tunesi, Leonardo

doi:10.1016/j.pocean.2021.102656

Cited by 21 publications

(9 citation statements)

References 103 publications

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“…Furthermore, organogenic detritus composed of animal debris enriches the carbonate sandy bottom sediments of the Aegadian archipelago, likely stemming from the erosion of coralligenous reefs and marine cave communities. Recent work described deep and cold-water coral assemblages in seamounts and banks surrounding the Aegetes islands between 240 and 300 m depth (Bo et al, 2014;Angiolillo et al, 2021). Although this previous work reported Porifera and Cnidaria as the most frequent taxa, our study did not find them.…”

Section: Ram Assemblage and Relationship With Surrounding Habitatscontrasting

confidence: 89%

“…Although this previous work reported Porifera and Cnidaria as the most frequent taxa, our study did not find them. Angiolillo et al (2021) highlighted the importance of hard bottoms (sparse boulders and wrecks) for the richness and diversity of the megabenthic assemblages, resulting in high ecological value and conservation interest for the whole area.…”

Section: Ram Assemblage and Relationship With Surrounding Habitatsmentioning

confidence: 99%

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First Report on the Benthic Invertebrate Community Associated With a Bronze Naval Ram From the First Punic War: A Proxy of Marine Biodiversity

et al. 2021

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Historical traces of organisms on the seafloor, such as shells and tubes, constitute the ecological memory of ancient benthic assemblages and serve as an important resource for understanding the assembly of modern communities. Archeological shipwrecks are particularly interesting submerged substrata for both their archeological and biological implications. For the first time, we studied the species composition and life-history traits of dominant organisms in the benthic assemblage on a bronze Carthaginian naval ram, which sank more than two thousand years ago in the Southern Tyrrhenian Sea. By comparing the species composition of the ram assemblage with those of the surrounding habitats, we inferred possible colonization patterns for the ram and discussed the informative role of the shipwreck as a proxy of marine biodiversity. The ram assemblage was rich in species, including both sessile (bryozoans, serpulid polychaetes, and few bivalves) and motile (gastropods) species. Sexual reproduction with free-spawning fertilization and long-duration larvae characterized most species. The long submersion time of the ram, together with the reproductive strategies, growth forms, and motility of the dominant species were key factors shaping the community of the ram. The ram itself offers an archeological artifact of inestimable value, but our analysis revealed it to be an effective collector of fauna from the surrounding seabed. The ram community hosted species from a range of nearby natural habitats (mostly coralligenous, detritic bottoms, and zoosteracean meadows) and thus served as a proxy for marine biodiversity on the surrounding seabed. We conclude that the presence of many species on the ram that commonly occur in adjacent habitats of great environmental value was informative and highlight the important marine biodiversity in the area of the Aegadian archipelago.

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Section: Ram Assemblage and Relationship With Surrounding Habitatscontrasting

confidence: 89%

Section: Ram Assemblage and Relationship With Surrounding Habitatsmentioning

confidence: 99%

First Report on the Benthic Invertebrate Community Associated With a Bronze Naval Ram From the First Punic War: A Proxy of Marine Biodiversity

et al. 2021

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“…The occurrence of lost or discarded fishing gear as a major component of the seabed litter has been documented for many Mediterranean and Atlantic seamounts and banks (Pham et al, 2014;Vieira et al, 2015;Würtz & Rovere, 2015;Bo et al, 2020). The most evident impact of ALDGF (particularly lines and ropes) on seabed communities is caused by the entanglement of rocky outcrops, biogenic structures and sessile benthic species (Angiolillo et al, 2015(Angiolillo et al, , 2021Bo et al, 2020). As suggested by Bo et al (2020), the chance of gear entanglement could be particularly high on rugged rocky reefs, with high relief and rich in arborescent species.…”

Section: Discussionmentioning

confidence: 99%

“…Current knowledge of the nearly 250 seamounts found in the Mediterranean basin is extremely limited, especially in terms of biological characterization (Würtz & Rovere, 2015). Some investigations carried out in recent years to explore the seamount system (the Aceste-Tiberio and Scuso Seamounts) located off the northeastern coasts of Sicily reported the occurrence of vulnerable ecosystems largely impacted by litter and lost fishing gear (Freiwald et al, 2011;Aguilar et al, 2013;Angiolillo et al, 2015Angiolillo et al, , 2021. In the Aceste Seamount, Aguilar et al (2013) recorded some valuable benthic assemblages, such as coral gardens of alcyionacea (Ellisella flagellum, Callogorgia verticillata, Paramuricea spp., Eunicella spp.…”

Section: Introductionmentioning

confidence: 99%

Insights on the fish assemblages of seamounts and banks in the southern Tyrrhenian Sea (western Mediterranean Sea): implications for the conservation of deep-sea environments

et al. 2021

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Fish assemblages inhabiting a complex of south Tyrrhenian seamounts and banks were characterized using a remotely operated vehicle (ROV). Fish distribution was assessed through surveying 15 ROV transects. Video segments of each transect were split into two bathymetric ranges, above and below 200 m depth. In total 28 fish taxa belonging to 22 families were recorded. The number of species observed at the Marettimo Banks and the Aceste Seamount was higher compared with the Tiberio and Scuso Seamounts. The number of species recorded in the shallow part (<200 m depth) of the Marettimo Banks and the Aceste Seamount was higher than in the deeper zone (>200 m). Assemblages were numerically dominated by Anthias anthias, Callanthias ruber and Helicolenus dactylopterus. The occurrence of some elasmobranchs of conservation concern, such as Squatina aculeata, Hexanchus griseus, Squalus blainville and Galeus melastomus, was noteworthy. Differences in fish assemblage composition were observed between the Aceste Seamount and the other sites and especially between the two bathymetric ranges. The fish distribution pattern showed significant relationships with bottom slope and some substrate types. A large occurrence of lost fishing gear characterized the sites closest to the coast (the Marettimo Banks and the Scuso Seamount), providing, along with scanty observations of commercially important fishes, evidence of heavy fishing activities. The adoption of conservation and management actions in the investigated seamounts and banks, such as their inclusion in the Natura 2000 network, would be very helpful to protect some threatened elasmobranchs and restore valuable deep-sea habitats.

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“…To verify the superiority of the combined model over the component neural networks (SVM, BP, WAVENN, and ELM), seven indexes, namely, MAPE [41], PICP [42], MPIW [43], CWC [44], ACE [45], MPICD [46], and NMPICD (min-max) [36] are selected for the comprehensive evaluation.…”

Section: Experiments Imentioning

confidence: 99%

A Novel Wind Speed Interval Prediction System Based on Neural Network and Multi-objective Grasshopper Optimization

Tian

Wang

2022

International Transactions on Electrical Energy Systems

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As a clean energy source, the role of wind power in the energy mix is becoming increasingly important. Reliable and high-quality wind speed prediction results are key to wind energy utilization. The traditional point prediction method cannot effectively analyze the uncertainty of wind speed, and the interval prediction model can provide the possible variation range of wind speed under a certain confidence probability and supply more uncertain information to decision makers. However, the previous interval prediction models generally ignore the random characteristics of capturing wind speed and the importance of objective selection of prediction submodels, leading to poor prediction results. To address these problems, a combined model based on data preprocessing, multi-neural network models, multi-objective optimization, and an improved interval prediction method is proposed. The model is applied to five wind speed forecasting examples in Dalian to test the prediction accuracy, multi-step prediction ability, and universality and generalization ability of the model. The experimental results show that the model proposed in this study is satisfactory for various performance evaluation indexes, has high stability and accuracy, and all the solutions obtained by the model are Pareto optimal solutions. Thus, it provides a reliable reference for the effective utilization of wind energy.

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New records of scleractinian cold-water coral (CWC) assemblages in the southern Tyrrhenian Sea (western Mediterranean Sea): Human impacts and conservation prospects

Cited by 21 publications

References 103 publications

First Report on the Benthic Invertebrate Community Associated With a Bronze Naval Ram From the First Punic War: A Proxy of Marine Biodiversity

First Report on the Benthic Invertebrate Community Associated With a Bronze Naval Ram From the First Punic War: A Proxy of Marine Biodiversity

Insights on the fish assemblages of seamounts and banks in the southern Tyrrhenian Sea (western Mediterranean Sea): implications for the conservation of deep-sea environments

A Novel Wind Speed Interval Prediction System Based on Neural Network and Multi-objective Grasshopper Optimization

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