Dolphins Inhabiting in Black Sea and Effects of Fisheries

Balik, İsmet

doi:10.15671/hjbc.20164418127

Cited by 2 publications

(3 citation statements)

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“…The Black Sea is inhabited by only three species of cetaceans: the harbour porpoise Phocoena phocoena , the short-beaked common dolphin Delphinus delphis and the common bottlenose dolphin Tursiops truncatus, all listed on the IUCN Red List of Threatened species (as EN, VU, EN, respectively) [23,24]. One of the three subspecies of the harbour porpoise, namely the Black Sea harbour porpoise P. phocoena relicta is restricted to Marmara and the Black Sea.…”

Section: The Black Sea Cetaceansmentioning

confidence: 99%

“…Dead dolphins and porpoises were also found on the beaches around the Black Sea before the war, mostly as casualties of the fishing industry as they had visible signs of fishing nets and their flippers were often cut off by fishermen [23]. However, fishing in the Black Sea has completely ceased since the war started, the carcasses no longer have their fins cut off or any other signs of being trapped in fishing nets (figure 1 a ) leaving no doubt that countless cetacean carcasses documented by citizens of all countries surrounding the Black Sea in 2022 are the victims of war.…”

Section: The Large-scale Monitoring Of Cetacean Mortality During the ...mentioning

confidence: 99%

“…In 2019, its population was estimated at 90 970 individuals [24]. In general, the biodiversity of the Black Sea is quite limited due to the geographical isolation, low salinity, high amount of hypoxic and anoxic waters below the 100–250 m depth [23]. The population of cetaceans in the Black Sea has declined dramatically over the past hundred years as a result of massive direct killing (banned in 1966 in the USSR, Bulgaria and Romania and in 1983 in Turkey), by-catch caused by fishing industry, water pollution and habitat degradation leading to reduced prey resources [23].…”

Section: The Black Sea Cetaceansmentioning

confidence: 99%

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The use of social media in assessing the impact of war on cetaceans

Węgrzyn

Rusev²,

Tańska

et al. 2023

Biol. Lett.

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War has always brought millions of silent non-human victims but the scale of this suffering is often either unknown, neglected or difficult to quantify. Further, the complexities associated with long-term and large-scale monitoring of marine species make it difficult to assess the impacts of war and the mortality of cetaceans resulting from warfare has not been investigated. Here we propose the use of a modified form of citizen science, namely gathering the information from social media. Dolphin stranding is such a poignant incident for most people, that the probability of eyewitness posting information on social media appears high. We test this idea by collecting data on cetacean strandings along the Black Sea published on the Internet over the three months of Russia's invasion of Ukraine in 2022. We also validate this method with a small-scale scientific study on cetacean mortality during the same period of time, conducted in ‘Tuzlivski lymany’ Nature National Park in Ukraine. Our dual approach has produced similar results, indicating a dramatic increase in cetacean mortality due to war operations in the Black Sea. We advocate the future use of social media to bridge the knowledge gap on the impacts of war on animals, in particular cetaceans.

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Section: The Black Sea Cetaceansmentioning

confidence: 99%

Section: The Large-scale Monitoring Of Cetacean Mortality During the ...mentioning

confidence: 99%