Modelling dynamic effects of fishery on odontocetes through a food-web modelling approach in the Gulf of Taranto (Northern Ionian Sea) DOI
Daniela Cascione, Roberto Carlucci,

Giulia Cipriano

et al.

2022 IEEE International Workshop on Metrology for the Sea; Learning to Measure Sea Health Parameters (MetroSea), Journal Year: 2022, Volume and Issue: unknown, P. 308 - 313

Published: Oct. 3, 2022

This study is the first attempt at applying Ecosim modelling approach to explore temporal effects of fishing effort (FE) changes on odontocetes in food web Gulf Taranto. The implementation was performed existent Ecopath model realized for an area covering 7745 km 2 Go $T$ . described by 58 functional groups and 5 gears, focusing attention four odontocetes: Stenella coeruleoalba, Tursiops truncatus, Grampus griseus, Physeter macrocephalus. A total 67 time series based biomass (35) catches (32) were used fit during calibration step, adopting both automated stepwise manual fitting procedure. best selected run two decades forward projecting simulations (2018–2035) predict odontocetes, setting three different scenarios 1) constant FE as 2018 (baseline); 2) FE+25% between 2019 2023; 3) -25% 2023. T. truncatus showed increase 30.4% endpoint baseline scenario, it only species showing relevant differences scenarios, with a decrease 3.8% 4.3% FE-25 xmlns:xlink="http://www.w3.org/1999/xlink">% , respectively, compared baseline. S. G. P. macrocephalus did not show any notable difference simulations. scenario analysis underlines how cetacean abundances could be influenced fisheries through indirect prey controls determined patterns trophic interactions levels intensity. Although improvement strategy representation environmental data should carried out, this can considered set future addressed conservation measures cetaceans.

Language: Английский

Investigating fishery and climate change effects on the conservation status of odontocetes in the Northern Ionian Sea (Central Mediterranean Sea) DOI Creative Commons
Pasquale Ricci, Natalia Serpetti, Daniela Cascione

et al.

Ecological Modelling, Journal Year: 2023, Volume and Issue: 485, P. 110500 - 110500

Published: Sept. 11, 2023

A modelling approach applied to the study of ecosystems from a management and conservation point view allows their complexity be investigated represents tool for meeting sustainability goals, part 2030 Agenda Sustainable Development. Tying into Development Goals (SDGs) 13 14, human activities fisheries climate change represent two pivotal drivers marine environment, acting on keystone predators, such as odontocetes. calibrated time-dynamic model (Ecopath with Ecosim) was developed investigate effects odontocetes main prey in Northern Ionian Sea (Central Mediterranean Sea), according changes trawl fishery primary productivity. In particular, food web Gulf Taranto (GoT) is described by 51 functional groups (FGs), four (striped, common bottlenose, Risso's dolphin sperm whale) represented single FG, 5 fishing fleets. The calibration Ecosim carried out during period 2009–2018 using combination automatic manual fitting procedures. Changes trawling effort (increases, reductions bans) production were tested until 2040 detect effect biomass prey. cumulative assessed an Interaction Effect Index. Fishery showed negligible all odontocetes, exception bottlenose which respond negative way increase effort. reduction top-predators due seems lead predation pressure meso‑consumers, thus basal Similarly, bottom-up increased tends diluted towards top trophic network, slight interaction pattern mediate variety different outcomes application index could contribute disentangling web, providing information address analysis required SDG 14 targets.

Language: Английский

Citations

4
Adding to the mix – Challenges of mixed‐fisheries management in the North Sea under climate change and technical interactions DOI Creative Commons

Bernhard Kühn,

Alexander Kempf, Thomas Brunel

et al.

Fisheries Management and Ecology, Journal Year: 2023, Volume and Issue: 30(4), P. 360 - 377

Published: April 19, 2023

Abstract Technical interactions (multiple fleets fishing multiple species with various gears, as either target or bycatch), bycatch regulations through a landing obligation, and biological economic effects of climate change, affecting fisheries yield profits, provide challenge for demersal mixed the North Sea. A multi‐stock, multi‐fleet, bioeconomic model was used to understand management options under these combined influences. Scenarios considered change on recruitment three main gadoid stocks (cod – Gadus morhua , saithe Pollachius virens whiting Merlangius merlangus ), possible future developments fuel fish prices, strict implementation obligation. The latter leads decreased profits in short term due increased choke effects, mainly Sea cod, being influenced by climate‐induced productivity changes. Allowing above F MSY but within sustainable limits, limiting year‐to‐year quota changes, could help buffer initial losses at expense mid‐ long‐term. Economic performance individual linked their target's stock status, cost structure, prices. results highlight need consider both consequences fisheries.

Language: Английский

Citations

2
Modeling the impact of floating offshore wind turbines on marine food webs in the Gulf of Lion, France DOI Creative Commons

Mathieu Adgé,

Jérémy Lobry, Anne Tessier

et al.

Frontiers in Marine Science, Journal Year: 2024, Volume and Issue: 11

Published: May 15, 2024

To achieve its energy transition, the French government is planning to install floating wind farms in Mediterranean Sea Gulf of Lion. In order study effects such installations on ecosystem, A trophic model was developed evolution biomass and ecological network indicators (ENA). Four scenarios were designed simulate 1/the “reef effect” caused by new hard substrate created farm structure, 2/the association reef effect with reserve closure fishing, 3/the impact regular harvesting sessile organisms from fishermen and, 4/the transfer these seafloor. Our suggests changes ecosystem structure functioning after introduction a farm, where low level groups became more important web, maturity decreased, overall activity diversity increased. The some pelagic demersal Overall, large platforms will transform local enhancing production which likely provide benefits fisheries focused higher groups.

Language: Английский

Citations

0
Atlantis end-to-end modeling to explore ecosystem dynamics in the Strait of Sicily, Central Mediterranean Sea. DOI Creative Commons
Matteo Sinerchia, Fabio Fiorentino, Francesco Colloca

et al.

Environmental Modelling & Software, Journal Year: 2024, Volume and Issue: 183, P. 106237 - 106237

Published: Oct. 2, 2024

Language: Английский

Citations

0
Spatiotemporal fishing effort simulations and restriction scenarios in Thermaikos Gulf, Greece (northeastern Mediterranean Sea) DOI Open Access
Donna Dimarchopoulou, Ioannis Keramidas, Konstantinos Tsagarakis

et al.

Ocean & Coastal Management, Journal Year: 2023, Volume and Issue: 247, P. 106914 - 106914

Published: Nov. 7, 2023

Language: Английский

Citations

1
Computing ecosystem risk hotspots: A mediterranean case study DOI Creative Commons
Gianpaolo Coro,

Laura Pavirani,

Anton Ellenbroek

et al.

Ecological Informatics, Journal Year: 2024, Volume and Issue: 85, P. 102918 - 102918

Published: Dec. 3, 2024

Language: Английский

Citations

0
Modelling dynamic effects of fishery on odontocetes through a food-web modelling approach in the Gulf of Taranto (Northern Ionian Sea) DOI
Daniela Cascione, Roberto Carlucci,

Giulia Cipriano

et al.

2022 IEEE International Workshop on Metrology for the Sea; Learning to Measure Sea Health Parameters (MetroSea), Journal Year: 2022, Volume and Issue: unknown, P. 308 - 313

Published: Oct. 3, 2022

This study is the first attempt at applying Ecosim modelling approach to explore temporal effects of fishing effort (FE) changes on odontocetes in food web Gulf Taranto. The implementation was performed existent Ecopath model realized for an area covering 7745 km 2 Go $T$ . described by 58 functional groups and 5 gears, focusing attention four odontocetes: Stenella coeruleoalba, Tursiops truncatus, Grampus griseus, Physeter macrocephalus. A total 67 time series based biomass (35) catches (32) were used fit during calibration step, adopting both automated stepwise manual fitting procedure. best selected run two decades forward projecting simulations (2018–2035) predict odontocetes, setting three different scenarios 1) constant FE as 2018 (baseline); 2) FE+25% between 2019 2023; 3) -25% 2023. T. truncatus showed increase 30.4% endpoint baseline scenario, it only species showing relevant differences scenarios, with a decrease 3.8% 4.3% FE-25 xmlns:xlink="http://www.w3.org/1999/xlink">% , respectively, compared baseline. S. G. P. macrocephalus did not show any notable difference simulations. scenario analysis underlines how cetacean abundances could be influenced fisheries through indirect prey controls determined patterns trophic interactions levels intensity. Although improvement strategy representation environmental data should carried out, this can considered set future addressed conservation measures cetaceans.

Language: Английский

Citations

1