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Analysis of institutional authors

Rodilla, MAuthorPastor, JAuthorBelda, EjAuthor

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October 28, 2024
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Evaluating dolphin damage in trammel net fisheries in the Valencia region: Insights to improve management

Publicated to:Regional Studies In Marine Science. 65 103075- - 2023-12-10 65(), DOI: 10.1016/j.rsma.2023.103075

Authors: Feliu-Tena, Blanca; Rodilla, M; Pastor, J; Abalo-Morla, Sara; Bou-Cabo, M; Belda, Eduardo J

Affiliations

CSIC, Inst Espanol Oceanog IEO, C El Varadero 1 - Author
CSIC, Inst Espanol Oceanog IEO, Subida Radio Faro 50-52 - Author
Univ Politecn Valencia, Inst Invest Gestio Integrada Zones Costaneres IGIC, E-46730 Gandia - Author
UPV Univ Politecn Valencia, IGIC, C Paranimf 1, Gandia 46730 - Author
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Abstract

Interactions between dolphins and trammel net fisheries have been described in the Mediterranean Sea as having negative consequences for both cetaceans and fishers. There is a need for studies that evaluate the economic costs caused by dolphins feeding from entangled fishes in trammel nets since most cetacean species involved in these interactions are endangered. This study aims to evaluate the economic impact of the interaction between dolphins and trammel nets fisheries in the coastal waters of the Valencian region in the western Mediterranean Sea. We conducted at-port visual inspections of nets from April 2018 to March 2019, which included 1,849 fishing operations with trammel nets, and we recorded damages to the net and catch and the value of the fishery. Thirty-two interactions were detected during the year of the study. The only observed species interacting was the common bottlenose dolphin. No bycatch of dolphins was reported. The interactions have been impacted seasonally and most of them took place in February and March. There were no significant differences in catch when comparing sets with and without depredation or damage in nets due to depredation by dolphins. Also on average, no differences were found in the value of the catch when comparing sets with or without damage caused by dolphins. The main cost to the fisher was the cost of repairing the nets. The estimated financial loss per vessel and year was euro556 (95%CI: euro303- euro809). This represents less than 1% of the total yearly income of each vessel in our area. We suggest implementing tools to economically compensate artisanal vessels for any damage caused by dolphins in order to avoid increasing the hostile feeling of fishers towards dolphins and to apply conservation measures to protect this cetacean species.& COPY; 2023 The Author(s). Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).

Keywords

Acoustic pingersArchipelagoArtisanal fisheriesBottle-nosed dolphinsConservationDepredationDeterrentsDolphinsEconomic lossFisheries interactionsImpactMediterranean seaSmall cetaceansTursiops-truncatus

Quality index

Bibliometric impact. Analysis of the contribution and dissemination channel

The work has been published in the journal Regional Studies In Marine Science due to its progression and the good impact it has achieved in recent years, according to the agency WoS (JCR), it has become a reference in its field. In the year of publication of the work, 2023, it was in position 36/119, thus managing to position itself as a Q2 (Segundo Cuartil), in the category Marine & Freshwater Biology. Notably, the journal is positioned en el Cuartil Q2 para la agencia Scopus (SJR) en la categoría Animal Science and Zoology.

From a relative perspective, and based on the normalized impact indicator calculated from World Citations provided by WoS (ESI, Clarivate), it yields a value for the citation normalization relative to the expected citation rate of: 1.19. This indicates that, compared to works in the same discipline and in the same year of publication, it ranks as a work cited above average. (source consulted: ESI Nov 14, 2024)

This information is reinforced by other indicators of the same type, which, although dynamic over time and dependent on the set of average global citations at the time of their calculation, consistently position the work at some point among the top 50% most cited in its field:

  • Weighted Average of Normalized Impact by the Scopus agency: 1.29 (source consulted: FECYT Feb 2024)
  • Field Citation Ratio (FCR) from Dimensions: 2.11 (source consulted: Dimensions Oct 2025)

Specifically, and according to different indexing agencies, this work has accumulated citations as of 2025-10-22, the following number of citations:

  • WoS: 5
  • Scopus: 4

Impact and social visibility

From the perspective of influence or social adoption, and based on metrics associated with mentions and interactions provided by agencies specializing in calculating the so-called "Alternative or Social Metrics," we can highlight as of 2025-10-22:

  • The use, from an academic perspective evidenced by the Altmetric agency indicator referring to aggregations made by the personal bibliographic manager Mendeley, gives us a total of: 17.
  • The use of this contribution in bookmarks, code forks, additions to favorite lists for recurrent reading, as well as general views, indicates that someone is using the publication as a basis for their current work. This may be a notable indicator of future more formal and academic citations. This claim is supported by the result of the "Capture" indicator, which yields a total of: 17 (PlumX).

With a more dissemination-oriented intent and targeting more general audiences, we can observe other more global scores such as:

  • The Total Score from Altmetric: 1.
  • The number of mentions on the social network X (formerly Twitter): 1 (Altmetric).

Leadership analysis of institutional authors

There is a significant leadership presence as some of the institution’s authors appear as the first or last signer, detailed as follows: First Author (Feliu-Tena, B) and Last Author (Belda Perez, Eduardo Jorge).

the author responsible for correspondence tasks has been Feliu-Tena, B.