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genetic structure of anisakis physeteris, and its differentiation from the anisakis simplex complex (ascaridida: anisakidae).the genetic structure of anisakis physeteris from the mediterranean sea has been analysed electrophoretically at 22 enzyme loci. the samples studied, although differing in the life-stage (larvae and adults), and in the host (the fishes micromesistius poutassou and trachurus trachurus, and the sperm whale physeter macrocephalus) were genetically homogeneous. of these loci 11 (ldh, sod, np, adk-2, pgm-1, est-1, est-2, acph-1, acph-2, lap-2 and ca) were found to be monomorphic, while the other 11 ( ...19863785976
organic and inorganic arsenic and lead in fish from the south adriatic sea, italy.total, organic and inorganic arsenic and lead were measured from the muscle of different kinds of fish: skate (raje spp.), hake (merluccius merluccius) and blue whiting (micromesistius poutassou), caught in the south adriatic sea (south italy) in the period june-august 1995. the highest levels of total arsenic were found in skate (raje spp.) whose values ranged from 14.4 to 61.5 mg/kg ww, followed by blue whiting (m. poutassou) and hake (m. merluccius) that showed lower levels ranging from 8.5 t ...200011091789
molecular and epidemiological data on anisakis spp. (nematoda: anisakidae) in commercial fish caught off northern sardinia (western mediterranean sea).anisakiasis is a fish-borne zoonosis caused by third stage larvae of the nematode anisakis sp. present in fish or cephalopods. this is the first contribution to the molecular identification and epidemiology of anisakis spp. in commercial fish from the gulf of asinara (sardinia, western mediterranean sea). between april 2006 to november 2011, 777 specimens of 10 fish species (engraulis encrasicolus, merluccius merluccius, micromesistius poutassou, phycis blennoides, sardina pilchardus, sardinella ...201424630706
[anisakiasis in fresh fish sold in the north of córdoba].anisakiasis is a parasitic zoonosis caused by live larvae of the anisakidae family found located in the body cavities and in the muscular systems of osseous fish and cephalopod mollusks. humons inadvertently ingest these larvae when eating raw or undercooked infested fish. symptoms are characterized by gastrointestinal disorders. the purpose of this study is that of ascertaining the frequency of anisakid larvae parasite infestation in fresh fish marketed in northern section of the province of co ...200011217241
isolation of viral haemorrhagic septicaemia virus (vhsv) from wild marine fish species in the baltic sea, kattegat, skagerrak and the north sea.in order to analyse the occurrence of viral haemorrhagic septicaemia virus (vhsv) in the marine environment surrounding denmark, fish tissue samples were collected on four cruises with the research vessel h/s dana in 1996 and 1997. the sampling comprised 923 samples totalling 7344 fish representing 29 different species. vhsv was isolated from 24 fish samples from the baltic sea, four samples from skagerrak and three samples from the north sea. the virus-positive host species included herring clu ...199910509720
alteration of the electrophoretic pattern of myofibrillar proteins in fish mince during frozen storage.a study was made of the variations in the electrophoretic profile of myofibrillar proteins in the muscles of blue whiting (micromesistius poutassou r.), horse mackerel (trachurus trachurus l.) and mackerel (scomber scombrus l.). it was shown that all species presented different deterioration patterns during frozen storage. the fish were caught at two separate times of the year (winter and summer) and were stored frozen at -18 degrees c for 1 year. the results indicate that during frozen storage, ...19957785353
resource utilization by deep-sea sharks at the le danois bank, cantabrian sea, north-east atlantic ocean.the feeding habits of birdbeak dogfish deania calcea, velvet belly lantern shark etmopterus spinax and blackmouth catshark galeus melastomus at le danois bank, cantabrian sea, south bay of biscay were studied in relation to their bathymetric distribution. deep-sea sharks were collected during two multidisciplinary surveys carried out in october 2003 and april 2004 at the le danois bank. two different habitats were defined: (1) the top of the bank, ranging from 454 to 642 m depth and covered by f ...200920738618
pfaas in fish and other seafood products from icelandic waters.perfluorinatedalkyl acids (pfaas) are of growing concern due to possible health effects on humans. exposure assessments indicate that fish consumption is one of the major sources of perfluorooctane sulfonate (pfos) exposure to humans, one of the major pfass, whereas concerns of overestimation of this exposure source have been raised. therefore, pfaas concentrations in fish from the north atlantic (icelandic fishing grounds) in the flesh of different fish species were investigated along with more ...201424782899
detection of arsenic-containing hydrocarbons in a range of commercial fish oils by gc-icpms analysis.the present study describes the use of a simple solid-phase extraction procedure for the extraction of arsenic-containing hydrocarbons from fish oil followed by analysis using gas chromatography (gc) coupled to inductively coupled plasma mass spectrometry (icpms). the procedure permitted the analysis of a small sample amount, and the method was applied on a range of different commercial fish oils, including oils of anchovy (engraulis ringens), atlantic herring (clupea harengus), sand eel (ammody ...201323620370
parasites as biological tags in marine fisheries research: european atlantic waters.studies of the use of parasites as biological tags for stock identification and to follow migrations of marine fish, mammals and invertebrates in european atlantic waters are critically reviewed and evaluated. the region covered includes the north, baltic, barents and white seas plus icelandic waters, but excludes the mediterranean and black seas. each fish species or ecological group of species is treated separately. more parasite tag studies have been carried out on atlantic herring clupea har ...201524722002
feeding ecology of northeast atlantic mackerel, norwegian spring-spawning herring and blue whiting in the norwegian sea.the norwegian spring-spawning (nss) herring (clupea harengus), blue whiting (micromesistius poutassou) and northeast atlantic (nea) mackerel (scomber scombrus) are extremely abundant pelagic planktivores that feed in the norwegian sea (ns) during spring and summer. this study investigated the feeding ecology and diet composition of these commercially important fish stocks on the basis of biological data, including an extensive set of stomach samples in combination with hydrographical data, zoopl ...201626895485
molecular epidemiology and risk factors for anisakis simplex s.l. infection in blue whiting (micromesistius poutassou) in a confluence zone of the atlantic and mediterranean: differences between a. simplex s.s. and a. pegreffii.our study determined parameters of parasitization of anisakis simplex s.l. in micromesistius poutassou in a confluence zone of the atlantic and mediterranean, with a total prevalence of 82%. also, in the three seasons analyzed, high prevalence's values were found, reaching 100% in spring; however mean intensity and abundance values were higher in winter. the use of molecular techniques to differentiate between anisakis genotypes of the larvae characterized allowed obtaining values of 99.7% anisa ...201627289194
mitochondrial dna of anisakis simplex s.s. as a potential tool for differentiating populations.anisakis simplex s.s. specimens from gadus morhua, gadus ogac, reinhardtius hippoglossoides, clupea harengus, micromesistius poutassou, pleurogrammus monopterygius, and oncorhynchus nerka, caught in the north atlantic and pacific, were examined. identity of the parasite species was confirmed using a molecular key. all specimens were used for amplifying a part of the non-coding sequence of the at-rich region, flanked by the nad6-nad4l-trnw-trne-rrns-trns2, and trnn-trny-nad1 genes. this part of t ...200919530887
polycyclic aromatic hydrocarbons in marine organisms from the gulf of naples, tyrrhenian sea.polycyclic aromatic hydrocarbons (pahs) were determined by an hplc method with fluorescence detection in bivalves (mitylus galloprovincialis), cephalopods (todarodes sagittatus), crustaceans (aristeus antennatus), and fish (mullus surmeletus, scomber scombrus, micromesistius poutassou, and merluccius merluccius) caught in the gulf of naples (tyrrhenian sea, italy). anthracene, fluoranthene, pyrene, benz(a)anthracene, chrysene, benzo(b)fluoranthene, and benzo(k)fluoranthene were detected, at diff ...200717288448
polycyclic aromatic hydrocarbons in marine organisms from the adriatic sea, italy.polycyclic aromatic hydrocarbons (pahs) were analyzed in bivalves (mitylus galloprovincialis), cephalopods (todarodes sagittatus), crustaceans (nephrops norvegicus) and fish (mullus barbatus, scomber scombrus, micromesistius poutassou, merluccius merluccius) in several pools coming from the central adriatic sea. these marine organisms were selected because of their multitude, wide distribution and common use in the italian diet, they were sampled and analyzed during the year 2004. acenaphthene, ...200716962639
endoparasites of the blue whiting, micromesistius poutassou from north-west spain.the communities of metazoan endoparasites of blue whiting, micromesistius poutassou, in waters of north-west spain were analysed and a geographical comparison made with other localities. four hundred blue whiting collected in july 1999 and september 2000 were examined for parasites, excluding the head and gills. six species were found: anisakis simplex s.l. (l3), a. physeteris (l3), hysterothylacium aduncum (l2 and l3), stephanostomum lophii (metacercaria), s. pristis (adult), and prosorhynchus ...200515831108
low detection efficiency of candling as a commonly recommended inspection method for nematode larvae in the flesh of pelagic fish.the third-stage larvae of the parasitic nematode anisakis simplex commonly occur in most commercially important fish species from the north atlantic. in this study, the occurrence and site distribution of anisakis larvae in various size groups of norwegian spring spawning herring (clupea harengus), blue whiting (micromesistius poutassou), and mackerel (scomber scombrus) from the northeast atlantic was investigated. although most of the larvae were found in the abdominal cavity, the small proport ...200515830678
in vitro development of the fish parasite hysterothylacium aduncum from the third larval stage recovered from a host to the third larval stage hatched from the egg.anisakids are parasitic nematodes of fish worldwide, producing economic and human health concerns. it is thus important to ascertain their in vitro life cycle in laboratory studies. here we describe the in vitro development of third-stage larvae (l3) of hysterothylacium aduncum isolated from blue whiting micromesistius poutassou, to the hatching of l3 from eggs obtained from h. aduncum worms grown in glit medium (a modified mixture of yaeger's lit [liver infusion tryptose] and grace's media) at ...200415038450
larval anisakids parasitizing the blue whiting, micromesistius poutassou, from motril bay in the mediterranean region of southern spain.a total of 301 blue whiting, micromesistius poutassou risso, 1826, ranging in length from 17 to 28 cm, from motril bay (mediterranean coast, south spain) were examined for anisakid nematodes, as these fish are common items in the spanish mediterranean diet. three anisakid species were morphologically identified with a total prevalence of 10.63%. anisakis simplex s.l. rudolphi, 1809 had a prevalence value of 6.65%, compared with 2.66% for a. physeteris baylis, 1923 and 2.33% for hysterothylacium ...200011138027
distribution of anisakis simplex in fish caught in the ligurian sea.a total of 822 individuals of 5 fish species were sampled in the western coastal area of the mediterranean sea and examined for the presence of anisakis simplex larvae in the body cavity, muscle, and viscera. a. simplex mean intensity (mi) and prevalence (pr) values were very high in the common scad (trachurus trachurus; pr 80-100%, mi 19.3-36.8) and the blue scad (t. picturatus; pr 80-100%, mi 18.2-70.7), moderate in the blue whiting (micromesistius poutassou), and low in the red mullet (mullus ...200010935904
identification of gadoid species in fish meat by polymerase chain reaction (pcr) on genomic dna.identification of fish species is significant due to the increasing interest of consumers in the meat of sea fish. methods focusing on fish species identification help to reveal fraudulent substitution among economically important gadoid species in commercial seafood products. the objective of this work was to develop a conventional pcr method for the differentiation of the following gadoid fish species in fish products: alaska pollack ( theragra chalcogramma), blue whiting ( micromesistius pout ...200818454544
risk analysis of human anisakidosis through the consumption of the blue whiting, micromesistius poutassou, sold at spanish supermarkets.european legislation directed at the catering industry concerning the prevention of anisakidosis proposes efficient measures to avoid human infestation, but this legislation does not directly address the consumer at the household level. assessing the anisakidosis risk for consumers who buy fresh fish at supermarkets in spain, 284 blue whiting, micromesistius poutassou, specimens, originating from two fishing zones and seasons of capture, sold at five nationwide spanish supermarket chains, were e ...201223035727
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