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War-Driven Dolphin Deaths Reach Record Levels in the Black Sea

Війна призвела до небачених втрат дельфінів у Чорному морі. Photo: НВ — Техно

Mass Dolphin Deaths in the Black Sea

The Black Sea is witnessing an unprecedented die-off of dolphins, directly linked to the consequences of war. Ecologist Ivan Rusev has documented the most severe period since hostilities began in 2022. The deaths are caused by acoustic trauma from explosions and sonar operations, as well as chemical poisoning from oil products and explosives. Dolphin fatalities have been observed from Novorossiysk and occupied Crimea to the Odesa region.

According to Rusev, the sea is currently experiencing a horrific synergy of dolphin killings. This period has become the most severe in terms of the number of wounded, concussed, and dead cetaceans since the start of hostilities. On Odesa beaches, particularly in Kryzhanivka, live but disoriented dolphins—such as common dolphins and Azov Sea harbor porpoises—have been found. People have tried to help these animals by pushing them into deeper waters, but this can cause fatal stress for the dolphins.

Severity of the Situation

In May, mass strandings of dolphin carcasses were recorded near Novorossiysk, confirming the gravity of the situation. Constant operation of military sonars, underwater explosions, and regular launches of Kalibr cruise missiles lead to complete disorientation of the animals. Due to oil product spills, dolphins develop toxic diseases such as:

  • fuel oil hepatitis
  • pancreatitis
  • nephritis

Studies show that examined cetaceans display signs of severe intoxication and damage to the gastrointestinal tract. Symptoms include seizures, intense pain, loss of coordination, exhaustion, dehydration, rapid shallow breathing, and critical liver and pancreas dysfunction. These findings are confirmed by blood tests and ultrasound examinations.

Additionally, the war has drastically altered the chemical composition of Black Sea waters. Continuous shelling of infrastructure releases tons of nitrogen, phosphorus, and nitrates into the sea. The water is contaminated with heavy metals, explosives, and residues of fuel and lubricants from destroyed ships, downed aircraft, missiles, and drones. The dolphin crisis in the Black Sea serves as an alarming indicator of the war's catastrophic impact on the region's ecosystem.

This situation underscores the severe environmental consequences of military actions, which could have long-lasting effects not only on marine fauna but also on the overall health of the Black Sea ecosystem. The mass dolphin deaths signal an ecological crisis that demands urgent response from international organizations and regional governments. Restoring the natural balance after the conflict could take many years, threatening biodiversity and the stability of marine ecosystems.

The ongoing conflict has not only resulted in widespread dolphin deaths but has also led to significant environmental consequences along the Black Sea coast. Recent reports highlight how the war's impact extends beyond marine life, affecting local ecosystems and communities. For a deeper understanding of this troubling trend, read about how the conflict has recently claimed four dolphins in Odessa, further illustrating the environmental toll of the war. Explore the environmental implications of these tragic events.