Mystery over dead fish find

More than a tonne of dead fish were discovered floating in the River Segura in Guardamar, according to the Hydrographic Confederation of Segura (CHS).

They were discovered by members of the Friends of the Wetlands in Sourthern Alicante (AHSA) who where monitoring birds in the early hours of the morning. Around the same time last year there was a similar occurrence, which was caused by the spillage of pesticides, according to AHSA.

“The CHS should act more forcefully to prevent a recurrence of events like this that endangers the fragile recovery of the mistreated River Segura,” said Sergio Arroyo, AHSA president. The mullet and carp fish bodies have been removed and research is underway to determine the cause of their deaths.

The CHS are considering two main hypothesis.

One is that the high temperatures in recent days “decreased the oxygen in the water causing death by asphyxiation.” The second is that it may be due to the agricultural use of compost or some kind of disinfectant.

What happens is that due to the drainage of irrigated land, the levels may have become concentrated, causing mortality, according to the CHS.

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