C7 – Active defense of A. naccarii spawning sites – IN PROGRESS


The activity was regularly ongoing until 31/10/2020. All the planned campaigns and containment activities were carried out. Hundreds of reports / cards compiled by the men of the task force have been collected which have proved invaluable in reporting sturgeon in the scrub period.


The defense activity of the A.naccarii breeding site continues regularly through the fight against poaching and the capture of Torpedo through continuous electro-fishing campaigns.


In the period June 2017 – August 2018 an additional 115 patrols were built, at the rate of around 8 patrol trips per month, almost 2 per week. Among the aspects of greater relevance that emerged thanks to the patrols, we note: the interception, on 4 occasions, of random catches of adult sturgeons, then promptly released, by recreational fishermen fishing in the patrol section; the recovery of the corpse of a young sturgeon.

Recovery of two sturgeon adults who died: one equipped with a microchip, belonging to the stock of sturgeons released as part of the Life Con.Flu.Po project, the second instead without a microchip.

The outcomes of the patrols also offer updated information on the state of the environment and the presence of other animals.

In the same period June 2017 – August 2018, the torpedo containment campaigns continued, carried out by the task force volunteers, led by GRAIA staff. A total of 12 wels catfish containment campaigns were carried out, with an average yield per campaign of approximately 104 kg of wels catfish biomass removed from the river at the exit.


The action, which began in April 2017, targets A. naccarii (endangered, Annex 2 Habitat Directive). The strategic objective is the protection of the only breeding site known at European level of A. naccarii, threatened by poaching and by the presence of invasive species (such as Silurus glanis). The action will also be functional to protect the reintroduction of Huso huso into the river when it begins.

The management will take into account the needs related to the seasonality and periodicity of the threats. In order to discourage poaching, weekly patrols will be organized throughout the year. These patrols will be more intense in spring and summer (around the spawning area) and will not follow any predictable work schedule in order to maximize their effectiveness.

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