Dr. sc. Andrej Jaklin from the Center for Marine Research of the Ruđer Bošković Institute in Rovinj says that they are in excellent condition, they have grown somewhere between 3-4 cm since last year and they react normally, writes HRT.
Periscopes are on the verge of extinction
Along with them, two small periscopes kept in the Pula Aquarium were found on collectors placed nearby. According to Aleksandra Bel Dajaković, head of the professional department of Aquarium Pula, they are in strictly controlled conditions, where in reality every parameter is controlled and they take care of them every day and watch how they progress.
This noble shellfish can grow up to one and a half meters, weigh over 3 kilograms and live up to 50 years, and is of great importance to the marine ecosystem.
“It is the largest Mediterranean shellfish that filters large amounts of water daily and thus contributes to the purification of water, eliminating excess organic matter from the water.”, says Dr. sc. Andrej Jaklin.
The noble pen shells have been hit in the last 4 years by a plague of pathogens that have led them to almost extinction.
Dangers of anchors and curious tourists
In addition to searching the seabed and finding living individuals to preserve this species, various protection actions have been initiated. Protective cages are set up if it is near an anchor or there is an octopus threat.
Various education initiatives can raise public awareness in order to preserve the world of the noble pen shell – the largest shellfish in the Mediterranean.
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