Shares in Leroy Seafood Group slumped in stock market trading on Thursday. The weakening share prices come as six of the seven Oslo-listed salmon producers reported their first-quarter earnings.

Leroy shares closed Thursday down 3.9 percent to NOK 54.36 (€4.94/$5.33) as the company reported seeing a "gradual," but "significant" impact on its operations from the coronavirus crisis.

The fall came despite the company reporting first quarter earnings in positive territory that rescued parent group Austevoll from a dire quarter.