First Data on spp. Presence in Shellfish in Croatia.

This study aimed to assess the presence of thermotolerant spp., as one of the most important foodborne zoonotic pathogens, in three shellfish species: mussels (), oysters () and queen scallops (). The samples were collected from nine locations in the Istrian aquatory, Croatia.

Occurrence and Seasonal Monitoring of Domoic Acid in Three Shellfish Species from the Northern Adriatic Sea.

As filter feeders, bivalves and ascidians can accumulate contaminants present in the environment and pass them on to higher food chain levels as vectors. The consumption of bivalves contaminated with the potent neurotoxin domoic acid (DA) can cause amnesic shellfish poisoning in humans. The aim of this study was to determine seasonal differences in occurrence and accumulation of this phycotoxin in European oysters ( Linnaeus, 1758) ( = 46), Queen scallops ( Linnaeus, 1758) ( = 53), and edible ascidians of the spp.

Cyclic imines in shellfish and ascidians in the northern Adriatic Sea.

The aim of this study was to determine the occurrence of the most representative cyclic imines (CIs) gymnodimine (GYM), pinnatoxin G (PnTX-G), and 13-desmethyl SPX C (SPX1) in Mediterranean mussels ( Lamarck, 1819) (n = 416), European oysters ( Linnaeus, 1758) (n = 104), Queen scallops ( Linnaeus, 1758) (n = 52) and edible ascidians of the . (n = 104) originating from nine harvesting and breeding areas in the northern part of the Adriatic Sea using ultra-performance liquid chromatography-tandem mass spectrometry (LC-MS/MS). All CI concentrations were far below the guidance level of 400 μg SPXs/kg proposed by the EU Reference Laboratory for Marine Toxins.

Metal Content in Four Shellfish Species from the Istrian Coast of Croatia.

The concentrations of As, Cd, Cu, Hg, Pb and Zn were measured in four shellfish species (oysters, mussels, scallops, warty venus) collected along the Istria Peninsula coast during autumn 2013. Mean metal levels in shellfish ranged as follows (mg/kg): As 1.69-3.