Freshwater Pearl – EUROPA 2021 -Latvia
The stamp featuring the freshwater pearl mussel has a face value of € 1.00, which corresponds to the postage of letter-post items in the weight class up to 20 grams within Latvia, while the face value of the stamp depicting the black stork is € 1.27, covering the postage of letter-post items in the weight class from 21 to 100 grams within Latvia. The print run of each individual stamp is 50,000 copies.
The release of the stamps is accompanied by the issue of a special cover with a print run of 1,000 copies. The stamp and the cover have been designed by the artist Ģirts Grīva.
The freshwater pearl mussel (Margaritifera margaritifera) is a very rare and endangered mussel in the whole of Europe that inhabits only clean rivers. The survival of the species is threatened by river pollution and disruption of streams. In Latvia the freshwater pearl mussel has survived in the places where there are many forests in the area of the river basin.
The black stork (Ciconia nigra) is one of the two stork species found in Latvia, which inhabits quiet forests and nests in large, old trees. The number of nesting pairs in Latvia has dropped by half since the end of the 20th century, and the reasons for this drop are over-intensive forestry activities and the shortage of stork food sources – fish and frogs – during the nesting season.