The rationale applied for monitoring and managing fisheries is based on the implicit assumption that yield and stocks status is essentially determined by fisheries. Moreover, the fisheries yield is quantified and analyzed in terms of landings with respect to official management area of registration of vessels. In this way, the real area of activity of each fleet is not considered and this prevent an effective spatial analysis of the factors affecting fisheries yield and stocks status. This paper firstly presents a VMS-based reconstruction of the fishing effort and of the area of activity of the Italian trawlers in the Mediterranean Sea. The fishing area of each fleet is then used as a spatial reference to estimate primary productivity rate and gross primary production and to investigate, by using General Additive Models, the effects of trawling effort, primary production and time on fisheries yield, fisheries productivity and overexploitation rate for some key demersal species. The results evidence that the usage of satellite-based information of fishing activities and of primary production, when combined at the real spatial scale of fishing activities, could effectively improve our ability to analyze the response of the ecosystems to these driving forces and allow capturing the main trends of yield, productivity and overexploitation rate of demersal stocks.

Russo, T., Carpentieri, P., D’Andrea, L., De Angelis, P., Fiorentino, F., Franceschini, S., et al. (2019). Trends in Effort and Yield of Trawl Fisheries: A Case Study From the Mediterranean Sea. FRONTIERS IN MARINE SCIENCE, 6 [10.3389/fmars.2019.00153].

Trends in Effort and Yield of Trawl Fisheries: A Case Study From the Mediterranean Sea

Russo, Tommaso;D’Andrea, Lorenzo;De Angelis, Paola;Franceschini, Simone;Parisi, Antonio;Scardi, Michele;Cataudella, Stefano
2019-01-01

Abstract

The rationale applied for monitoring and managing fisheries is based on the implicit assumption that yield and stocks status is essentially determined by fisheries. Moreover, the fisheries yield is quantified and analyzed in terms of landings with respect to official management area of registration of vessels. In this way, the real area of activity of each fleet is not considered and this prevent an effective spatial analysis of the factors affecting fisheries yield and stocks status. This paper firstly presents a VMS-based reconstruction of the fishing effort and of the area of activity of the Italian trawlers in the Mediterranean Sea. The fishing area of each fleet is then used as a spatial reference to estimate primary productivity rate and gross primary production and to investigate, by using General Additive Models, the effects of trawling effort, primary production and time on fisheries yield, fisheries productivity and overexploitation rate for some key demersal species. The results evidence that the usage of satellite-based information of fishing activities and of primary production, when combined at the real spatial scale of fishing activities, could effectively improve our ability to analyze the response of the ecosystems to these driving forces and allow capturing the main trends of yield, productivity and overexploitation rate of demersal stocks.
2019
Pubblicato
Rilevanza internazionale
Articolo
Esperti anonimi
Settore BIO/07 - ECOLOGIA
Settore SECS-S/03 - STATISTICA ECONOMICA
English
Con Impact Factor ISI
fisheries, spatial management, effort, VMS, primary production, mortality, sustainability, stocks
Russo, T., Carpentieri, P., D’Andrea, L., De Angelis, P., Fiorentino, F., Franceschini, S., et al. (2019). Trends in Effort and Yield of Trawl Fisheries: A Case Study From the Mediterranean Sea. FRONTIERS IN MARINE SCIENCE, 6 [10.3389/fmars.2019.00153].
Russo, T; Carpentieri, P; D’Andrea, L; De Angelis, P; Fiorentino, F; Franceschini, S; Garofalo, G; Labanchi, L; Parisi, A; Scardi, M; Cataudella, S
Articolo su rivista
File in questo prodotto:
File Dimensione Formato  
2019-Russo_et_al.,FMARS_GAM.pdf

accesso aperto

Tipologia: Versione Editoriale (PDF)
Licenza: Creative commons
Dimensione 4.38 MB
Formato Adobe PDF
4.38 MB Adobe PDF Visualizza/Apri

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2108/211719
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 39
  • ???jsp.display-item.citation.isi??? 34
social impact