# Italian mussel aquaculture mortality crisis

> Live situation record from CLSTR: https://clstr.news/situations/italian-mussel-aquaculture-mortality-crisis
> Updated: 2026-09-11T09:32:58.000Z. Sources: 8. Developments: 3.

Mussel farming in Italian waters is facing a severe crisis driven by rising sea temperatures and oxygen depletion. Initially, concerns were raised in Taranto regarding the mortality of mussel spat in the Mar Piccolo, with agricultural and employer associations calling for institutional monitoring to prevent irreversible damage to future harvests.

The situation escalated into a massive die-off in the northern Adriatic Sea. In regions such as Emilia-Romagna and Veneto, extreme temperatures reaching 32 degrees Celsius and algal blooms have caused production losses exceeding 90 percent in some areas. Confcooperative Agroalimentare e Pesca reported the loss of between 20,000 and 25,000 tons of mussels, with economic damages estimated at over 50 million euros. The crisis is particularly acute in the area between Gora and Porto Garibaldi, which represents over 60 percent of regional sea-grown mussel production. Due to the destruction of young mussels intended for future cycles, the impact is expected to persist into 2027, forcing local cooperatives to limit production to open-sea farms and suspend the sale of mussels with protected designation of origin grown in lagoons.

In Taranto, following a visit by Undersecretary Patrizio La Pietra, political leaders are seeking aid for affected businesses. Dario Iaia, a provincial president of Fratelli d’Italia, has requested a review of the regional ordinance prohibiting cultivation in the first basin of the Mar Piccolo, emphasizing the need for technical and scientific assessments to support the local industry.

## Timeline

### 2026-09-11: Taranto mussel farmers seek aid following mass die-offs

Following a visit by Undersecretary Patrizio La Pietra, officials are calling for aid for Taranto's mussel farmers and a review of cultivation bans in the Mar Piccolo due to heat-related die-offs.

2 sources. https://clstr.news/cluster/taranto-mussel-farmers-seek-aid-following-mass-die-offs

### 2026-09-02: Adriatic Sea mussel die-off causes massive economic damage

Extreme water temperatures and oxygen depletion in the northern Adriatic have caused a massive mussel die-off, resulting in estimated economic losses exceeding 50 million euros.

4 sources. https://clstr.news/cluster/adriatic-sea-mussel-die-off-causes-massive-economic-damage

### 2026-08-29: Mar Piccolo mussel spat mortality threatens Taranto production

Mussel spat mortality in Taranto's Mar Piccolo due to extreme heat has prompted unions to demand urgent monitoring and institutional intervention to protect future production.

3 sources. https://clstr.news/cluster/mar-piccolo-mussel-spat-mortality-threatens-taranto-production

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Cite as: Italian mussel aquaculture mortality crisis. CLSTR, https://clstr.news/situations/italian-mussel-aquaculture-mortality-crisis