Speak of the devil ray (Mobula mobular) fishery in Gaza

Abudaya, Mohammed; Ulman, Aylin; Salah, Jehad; Fernando, Daniel; Wor, Catarina; Sciara, Giuseppe Notarbartolo di

doi:10.1007/s11160-017-9491-0

Cited by 13 publications

(19 citation statements)

References 19 publications

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“…The devil ray (M. mobular) was reported mainly in the Tyrrhenian (GSA 9, 10 and 11) (Notarbartolo di Sciara et al, 2015), Adriatic (Fortuna et al, 2014), northern Ionian waters (GSA 17,18 and 19), around Balearic Islands (GSA 5), Tunisia coasts (GSA 13 and 14) (Bradaï & Capapé, 2001) and in the Levantine basin (Gaza Strip, see above; Fig. 3F) (Abudaya et al, 2017).…”

Section: Resultsmentioning

confidence: 95%

“…1B). The highest occurrence of M. mobular records is ascribed to two specific events in March 2006 and February 2013, in which 279 and 299 specimens were landed in Gaza Strip (Levantine Sea) by a local purse seine, called "shinshula", and then slaughtered on the beach and used as food (Abudaya et al, 2017). Remarkably, it seems that the local fishery directly targeting Mobula has been operating in the area throughout the years, passing unnoticed until those events were reported (Cebrian, pers.…”

Section: Resultsmentioning

confidence: 99%

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MEDLEM database, a data collection on large Elasmobranchs in the Mediterranean and Black seas

Mancusi¹,

Baino²,

Fortuna

et al. 2020

Medit. Mar. Sci.

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The Mediterranean Large Elasmobranchs Monitoring (MEDLEM) database contains over 3000 records (more than 4000 individuals) of large elasmobranch species from 20 different countries around the Mediterranean and Black seas, observed from 1666 to 2017. The main species included in the archive are the devil fish (1 813 individuals), the basking shark (939 individuals), the blue shark (585 individuals) and the great white shark (337 individuals).In the last decades other species such as the shortfin mako (166 individuals), the spiny butterfly ray (138) and the thresher shark (174 individuals) were reported with an increasing frequency. This was possibly due to an increased public awareness on the conservation status of sharks, and a consequent development of new monitoring programmes. MEDLEM does not have a homogeneous reporting coverage throughout the Mediterranean and Black seas and it should be considered as a database of observed species presence. Scientific monitoring efforts in the south-eastern Mediterranean and Black seas are generally lower than in the northern sectors and the absence in our database of some species does not imply their actual absence in these regions. Some considerations are made on the frequency and spatial distribution of records, size structure of the observed individuals for selected species, general area coverage and species involved as by-catch by fishing gear.

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Section: Resultsmentioning

confidence: 95%

Section: Resultsmentioning

confidence: 99%

MEDLEM database, a data collection on large Elasmobranchs in the Mediterranean and Black seas

Mancusi¹,

Baino²,

Fortuna

et al. 2020

Medit. Mar. Sci.

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“…These species may reach up to 7 m of disk width, inhabit different oceans and are filter-feeders [136]. Several species are known to aggregate for feeding, mating or visiting cleaning stations, often close to the water surface and in shallow waters [132, 133, 139, 159, 162, 163]. Manta rays have been heavily fished (Fig 6A) as bycatch or target species, in the last case mainly for their gill plates and branchial filaments, traded at high prices as medicinal products in some Asian communities [132, 133, 164].…”

Section: Introductionmentioning

confidence: 99%

From sea monsters to charismatic megafauna: Changes in perception and use of large marine animals

Mazzoldi

Bearzi²,

Brito

et al. 2019

PLoS ONE

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Marine megafauna has always elicited contrasting feelings. In the past, large marine animals were often depicted as fantastic mythological creatures and dangerous monsters, while also arousing human curiosity. Marine megafauna has been a valuable resource to exploit, leading to the collapse of populations and local extinctions. In addition, some species have been perceived as competitors of fishers for marine resources and were often actively culled. Since the 1970s, there has been a change in the perception and use of megafauna. The growth of marine tourism, increasingly oriented towards the observation of wildlife, has driven a shift from extractive to non-extractive use, supporting the conservation of at least some species of marine megafauna. In this paper, we review and compare the changes in the perception and use of three megafaunal groups, cetaceans, elasmobranchs and groupers, with a special focus on European cultures. We highlight the main drivers and the timing of these changes, compare different taxonomic groups and species, and highlight the implications for management and conservation. One of the main drivers of the shift in perception, shared by all the three groups of megafauna, has been a general increase in curiosity towards wildlife, stimulated inter alia by documentaries (from the early 1970s onwards), and also promoted by easy access to scuba diving. At the same time, environmental campaigns have been developed to raise public awareness regarding marine wildlife, especially cetaceans, a process greatly facilitated by the rise of Internet and the World Wide Web. Currently, all the three groups (cetaceans, elasmobranchs and groupers) may represent valuable resources for ecotourism. Strikingly, the economic value of live specimens may exceed their value for human consumption. A further change in perception involving all the three groups is related to a growing understanding and appreciation of their key ecological role. The shift from extractive to non-extractive use has the potential for promoting species conservation and local economic growth. However, the change in use may not benefit the original stakeholders (e.g. fishers or whalers) and there may therefore be a case for providing compensation for disadvantaged stakeholders. Moreover, it is increasingly clear that even non-extractive use may have a negative impact on marine megafauna, therefore regulations are needed.

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“…Mobula mobular is aplacental viviparous (one or two embryos). Feeds on small planktonic fish and crustaceans filtered through its gill plates (Abudaya et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

“…There has been a marked increase in the number of published studies on mobulids since 1990, particularly for the genus Manta, although the genus Mobula remains poorly understood (Couturier et al, 2012). Literature reports works on this Myliobatidae in Mediterranean: Notarbartolo-di-Sciara, 1987; Bustamante et al, 2016 on systematics; Bradai & Capapé, 2001;Celona, 2004;Correia et al, 2008;Scacco et al, 2009;Bello et al, 2012;Holcer et al, 2012;Yaglioglu et al, 2013;Fortuna et al, 2014;Baºusta & Özbek, 2017;Abudaya et al, 2017 on occurrence and fisheries, Canese et al, 2011;Couturier et al, 2012;Notarbartolo di Sciara et al, 2015;Duffy & Tindale, 2018; Sakalli, 2017 on ecobiology and behaviour of M. mobular. For Algerian waters works are limited to old descriptions of Pellegrin, 1901;Dieuzeide et al, 1953also McEachran & Capape.1984Fisher et al, 1987and works of Hemida et al, 2002on Mobula mobular and Hemida et al, 2016 on Mobula japanica in central Algerian waters so our observation is reporting the presence of this Myliobatidae in that part of the Mediterranean not observed for more than 30 years.…”

Section: Introductionmentioning

confidence: 99%

New Record of Giant Devil Ray (Chondrichthyes: Myliobatidae) From Oran Bay (Western Mediterranean Sea)

Hussein¹,

Talet²

2019

Indonesian Fisheries Research Journal

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The present paper reports a new record of Giant devil ray Mobula mobular (Bonnaterre, 1788) from western Algerian waters that is encountered for the first time in that coast since its first description in 1901 and last observation in late 80’s. This elasmobranch is categorized as endangered on the IUCN Red List (Endangered A2d ver 3.1) and is likely to be the rarest of the nine species of Mobula genus. Occasionally it is captured in Mediterranean Sea by purse seines, bottom and pelagic trawls, pelagic nets, bottom longlines, drifters and harpoons. The specimen stranded in “la Madrague Beach” in Western Algerian coasts. Its disc length was measuring 108.96 cm and disc width was 226.02 cm. This Myliobatidae is rarely seen with daily landed fish at Oran fishery. Up to date no explicit reason can be given for the strand of M. mobular but ghost fishing and important maritime traffic stay the most plausible cause of this incident.

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Speak of the devil ray (Mobula mobular) fishery in Gaza

Cited by 13 publications

References 19 publications

MEDLEM database, a data collection on large Elasmobranchs in the Mediterranean and Black seas

MEDLEM database, a data collection on large Elasmobranchs in the Mediterranean and Black seas

From sea monsters to charismatic megafauna: Changes in perception and use of large marine animals

New Record of Giant Devil Ray (Chondrichthyes: Myliobatidae) From Oran Bay (Western Mediterranean Sea)

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