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Search Results (3)

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Keywords = Mediterranean parrotfish

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17 pages, 1490 KiB  
Article
An Economic View on the Effects of Invasive Rabbitfishes Based on Fishers’ Perspectives: The Case of the Parrotfish Métier in the South Ionian Sea
by Angelos Liontakis and Vassiliki Vassilopoulou
Fishes 2023, 8(9), 447; https://doi.org/10.3390/fishes8090447 - 4 Sep 2023
Cited by 1 | Viewed by 2059
Abstract
The effect of thermophilic species invasion in the eastern Mediterranean is well-noted in the literature. During the last decade in western Greek waters, small-scale fisheries (SSF) catches exhibit increased relative contribution of rabbitfishes, which have originated from the Red Sea and inhabited the [...] Read more.
The effect of thermophilic species invasion in the eastern Mediterranean is well-noted in the literature. During the last decade in western Greek waters, small-scale fisheries (SSF) catches exhibit increased relative contribution of rabbitfishes, which have originated from the Red Sea and inhabited the country’s southeastern part since the Second World War. This study has used quantitative and qualitative information to assess the short-term economic effect of the rabbitfishes’ expansion in the SSF métier targeting the indigenous thermophilic parrotfish in the South Ionian Sea. The short-term micro-level negative economic effects of the rabbitfishes’ invasion and the corresponding adverse effects on fishers’ economic wealth have been estimated. The results indicate attitudinal differences among fishers, although their local ecological knowledge may enable them to avoid rabbitfishes’ hot spots and mitigate the respective economic losses, that particularly for smaller SSF vessels already seem to be quite important. As climate warming may further facilitate the expansion of rabbitfishes, outcompeting parrotfish, the latter métier may eventually become economically unsustainable. Fine-scale analysis at the métier level enables addressing the specificities of social-ecological systems and can contribute to informed and more effective decision making related to SSF, which is an important building block of Mediterranean coastal communities. Full article
(This article belongs to the Special Issue The Great Reset in Fisheries Management: Fisheries under Contrasting Environmental and Human-Induced Effects)
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15 pages, 2314 KiB  
Article
From Plates to Baits: Using a Remote Video Foraging System to Study the Impact of Foraging on Fouling Non-Indigenous Species
by Sahar Chebaane, João Canning-Clode, Patrício Ramalhosa, Janina Belz, Nuno Castro, Inês Órfão, Juan Sempere-Valverde, Aschwin Hillebrand Engelen, Miguel Pessanha Pais and João Gama Monteiro
J. Mar. Sci. Eng. 2022, 10(5), 611; https://doi.org/10.3390/jmse10050611 - 30 Apr 2022
Cited by 13 | Viewed by 4389
Abstract
Marinas are a gateway for the introduction and establishment of non-indigenous species (NIS). In these habitats, competition and predation are crucial determinants for NIS establishment and invasiveness. However, fish trophic preferences and biotic effects inside marinas are poorly known. This study proposes a [...] Read more.
Marinas are a gateway for the introduction and establishment of non-indigenous species (NIS). In these habitats, competition and predation are crucial determinants for NIS establishment and invasiveness. However, fish trophic preferences and biotic effects inside marinas are poorly known. This study proposes a novel method that combines the deployment of settlement plates to recruit different assemblages, followed by their use as bait in remote underwater video systems. This combined approach, addressed as a remote video foraging system (RVFS), can record fish foraging behaviour, including feeding choices and their impacts on fouling assemblage composition. An experimental RVFS trial carried out in a marina of Madeira Island, Portugal (NE Atlantic), identified the Mediterranean parrotfish, Sparisoma cretense, as the most important fouling grazer in the area. S. cretense behaved as a generalist and increased the heterogeneity of fouling assemblages, which can hamper NIS dominance of the fouling and reduce the pressure of propagules from the marina to the natural environment. The RVFS tool was useful to understand the trophic links between foragers and fouling and has the potential to provide relevant information for the management of NIS introductions, establishment and spread. Full article
(This article belongs to the Special Issue Marine Biological Invasions: Experimental Approaches)
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14 pages, 2778 KiB  
Article
Northward Spread of the Parrotfish Sparisoma cretense (Teleostei: Scaridae) in the Mediterranean Sea: An Update on Current Distribution with Two New Records from Sardinia
by Giuseppe Esposito, Marino Prearo, Vasco Menconi, Davide Mugetti, Domenico Meloni, Mattia Tomasoni, Elisabetta Pizzul, Pierluigi Piras, Monia Renzi, Dario Gaspa and Paolo Pastorino
J. Mar. Sci. Eng. 2021, 9(5), 536; https://doi.org/10.3390/jmse9050536 - 17 May 2021
Cited by 8 | Viewed by 5372
Abstract
The parrotfish Sparisoma cretense, a marine species native to the eastern and southern coastal areas of the Mediterranean, has extended its distribution northward. Here, we provide an update on its distribution based on currently published data and two new records from the [...] Read more.
The parrotfish Sparisoma cretense, a marine species native to the eastern and southern coastal areas of the Mediterranean, has extended its distribution northward. Here, we provide an update on its distribution based on currently published data and two new records from the coastline of Sardinia, Italy (central-western Mediterranean). The survey methods were scuba diving and spearfishing: one specimen of S. cretense was caught along the Argentiera coastline (northwest Mediterranean) and the others were photographed in the Gulf of Orosei, Osalla Bay (central-eastern Mediterranean). A literature update, together with new records, documents the distribution of this species in the northernmost areas of the Mediterranean. Probably a result of global warming, the ongoing northward expansion of S. cretense highlights the need for sampling campaigns to obtain timely updates on population and distribution of this thermophilic species. Full article
(This article belongs to the Special Issue Marine Bio-Invasions)
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