OR overheating of oceans It facilitates the spread of invaders and spatial species, causing serious impact on marine biodiversity and fishing, especially on the Mediterranean Sea. These conclusions come from the latest report by the European Union’s Copernicus Marine service on the state of the oceans.
According to the report, from May 2022 to early 2023, Mediterranean He has experienced the longest wave of the heat of the last four decades. Temperatures on the surface of the sea reached up to 4.3 ° C above normal levels.
Experts analyzed the consequences of this heat in two types of populations: of crab blue of the Atlantic and the bearded firefighter (Hermodified Carunculata), in the Delta of Pados in northern Italy and around the coast of Sicily.
In the Padu Delta, the growth of the population of blue crab, which feeds on molluscs, led to a 75% -100% -100% reduction in mussel production in some areas in 2023. The rise in temperature favored rapid reproduction, creating risks to local ecosystems.
The bearded fireplace, although endemic in the Mediterranean with a length of up to 70 cm and life expectancy of 9 years, also multiplied due to the increase in water temperature. The worm, which has poisonous hair, negatively affects traditional fishing in Sicily, destroying baits, cutting lines and causing damage to fishing fish, thereby reducing their commercial value.
The authors of the report warn that this worm threatens both marine biodiversity and the economic stability of fishing communities. They emphasize the need for management strategies that will limit the proliferation of the species.
In addition, the Copernicus Marine 2025 report also highlights other major problems, such as ocean acidification, plastic waste pollution and the reduction of marine ice.
As Pierre Baurel, General Manager of Mercator Ocean International, said, during the presentation of the report via teleconference, “Each part of the ocean is influenced by triple planetary crisis: climate change, loss of biodiversity and pollution”.
Source: Skai
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