Popular fish species disappear from Turkey’s Marmara and Black Seas

Popular fish species disappear from Turkey’s Marmara and Black Seas

Popular fish species disappear from Turkey’s Marmara and Black Seas

Bluefin tuna. Image from Pxhere, CC0.

Bluefin tuna, swordfish and Atlantic mackerel are among the fish species considered commercially extinct or extirpated on the Turkish side of the Marmara and Black Seas.

A new study by researchers with the Sea Around Us initiative at the University of British Columbia, Mersea Marine Conservation Consulting, Turkey’s Central Fisheries Research Institute and the Institute of Marine Sciences and Management at the University of Istanbul, found that 17 fish species have been extirpated and 17 are commercially extinct in Turkey’s Black Sea, while 19 have been extirpated and 22 went commercially extinct in the Sea of Marmara.

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Popular seafood species in sharp decline around the world

Popular seafood species in sharp decline around the world

Popular seafood species in sharp decline around the world

Octopus at a fish market in Indonesia. Photo by Deng Palomares.

Fish market favourites such as orange roughy, common octopus and pink conch are among the species of fish and invertebrates in rapid decline around the world, according to new research.

In the first study of its kind, researchers from the Sea Around Us initiative at UBC, the GEOMAR Helmholtz Centre for Ocean Research Kiel and the University of Western Australia assessed the biomass —the weight of a given population in the water— of more than 1,300 fish and invertebrate populations. They discovered global declines, some severe, of many popularly consumed species.

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Declining trend in fisheries catches threatens food security in African coastal communities

Declining trend in fisheries catches threatens food security in African coastal communities

Declining trend in fisheries catches threatens food security in African coastal communities

Ghanaian fisherman. Photo from Pikist.

Fish catches in Africa have reached a peak and, in many cases, have moved into a declining trend that threatens the food security and economic development of coastal areas.

A new study by researchers at the University of Western Australia, the University of British Columbia and Ecotrust Canada analyzed fishery yields in the seven Large Marine Ecosystems or LMEs that surround the African continent and found that most fisheries in the region rely on overfished resources.

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Putting the spotlight on Southern Mediterranean, Arabian Peninsula fisheries

Putting the spotlight on Southern Mediterranean, Arabian Peninsula fisheries

Putting the spotlight on Southern Mediterranean, Arabian Peninsula fisheries

Myriam Khalfallah during her PhD defence on March 26, 2020.

In the midst of the covid-19 pandemic, Myriam Khalfallah defended her PhD dissertation titled Data-poor Fisheries: Case studies from the Southern Mediterranean and the Arabian peninsula.

Despite having to present from her living room via a videoconferencing system to comply with the physical distancing measures imposed by the B.C. health authorities, Khalfallah obtained unanimous approval for her thesis.

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