The occurrence of anisakid nematode larvae in Baltic cod (Gadus morhua callarias L.) and the dynamics of their invasion

Grabda, Jadwiga

doi:10.3750/aip1976.06.1.01

Cited by 18 publications

(17 citation statements)

References 1 publication

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“…Increase of anisakids infection level with age or length of the host, as well as decrease of infection in higher length classes, have been reported for several host species (Abaunza et al, 1995;Adroher et al;1996;Cruz et al, 2005;Fernández et al, 2005;Grabda, 1976;Manfredi et al, 2000;Valero et al, 2000). In the present work, the significant correlations obtained between host length and Anisakis sp.…”

Section: Discussionmentioning

confidence: 67%

Distribution of larval anisakids in blue whiting off Portuguese fish market

2007

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SummarySpecimens of Micromesistius poutassou (n=238) obtained in a fish market of Oporto, Portugal, were examined for the presence of larval anisakids. Anisakis sp. L 3 larvae (prevalence = 77.7 %; mean intensity = 5.8; mean abundance = 4.5) and Hysterothylacium sp. L 3 larvae (prevalence = 5 %; mean intensity = 4.1; mean abundance = 0.2) were found in body cavity, mesenteries, liver and muscles. The Anisakis sp. intensity and abundance were significantly related to the host body length. The percentage of Anisakis sp. in muscle was inversely related to the host length.

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Section: Discussionmentioning

confidence: 67%

Distribution of larval anisakids in blue whiting off Portuguese fish market

2007

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“…The Anisakis simplex larvae belong to this group of nematodes. The first identified Anisakis-caused case was noted in 1955 in Holland, and from then on, the anisakidosis was recorded both in Holland and other European countries; the population of Japan, habitually consuming raw fish, is particularly vulnerable to the disease (Grabda 1976). Kennedy (1997) suggested that if the use of parasites as indicators of pollution can be justified, the fish host species must be abundant and easily accessible, and the species of parasite, despite their overdispersed distribution, must show a high prevalence and abundance in the fish population.…”

Section: Introductionmentioning

confidence: 98%

Accumulation of some heavy metals in Hysterothylacium aduncum (Nematoda) and its host sea bream, Sparus aurata (Sparidae) from North-Eastern Mediterranean Sea (Iskenderun Bay)

Dural

Genc

Sangün

et al. 2010

Environ Monit Assess

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The sea bream's nematode and Sparus aurata, sampled from the Iskenderun Bay, Mediterranean, in March 2008 were analyzed by inductively coupled plasma-atomic emission spectrometry for their some heavy metal (Cd, Cr, Cu, Fe, Hg, Mn, Mg, Pb, and Zn) levels. The metal concentrations of the parasites were compared to different organs (liver, muscle, gill, intestine, and skin) of the fish hosts. There were significant differences in Cd, Cr, Cu, Fe, Mn, Zn, Hg, Mg, and Pb concentrations in tissues of fish and its parasite. The parasite Cd, Cu, and Pb concentration was higher than the other tissues. Furthermore, significant differences were detected in the heavy metal accumulations between the parasitized and unparasitized fish tissues in Cd, Cu, Hg, and Pb concentrations. The Cd, Hg, and Pb concentrations were found in fish muscle at mean concentrations over the permissible limits proposed by the Food and Agriculture Organization.

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“…Previous investigations on salmon caught in the Atlantic documented that a number of marine parasite species, such as Anisakis simplex, are prevalent (Beverley-Burton & Pippy 1978, Margolis & Arthur 1979, Murphy et al 2010, and it is noteworthy that this was absent in the Baltic salmon. This indicates that Baltic salmon do not leave the Baltic, because the A. simplex life cycle is restricted to more marine areas and not completed in the Baltic proper (Grabda 1974(Grabda , 1976. Migrating North Sea herring (springspawning Rügen herring) entering the Baltic from the North Sea during autumn in order to spawn along the German and Polish coastlines (Grabda 1974, 1976, Mehrdana et al 2014) are infected with A. simplex, and the nematode can be transferred to local predatory fish, such as cod, feeding on this herring stock.…”

Section: Discussionmentioning

confidence: 99%

“…This indicates that Baltic salmon do not leave the Baltic, because the A. simplex life cycle is restricted to more marine areas and not completed in the Baltic proper (Grabda 1974(Grabda , 1976. Migrating North Sea herring (springspawning Rügen herring) entering the Baltic from the North Sea during autumn in order to spawn along the German and Polish coastlines (Grabda 1974, 1976, Mehrdana et al 2014) are infected with A. simplex, and the nematode can be transferred to local predatory fish, such as cod, feeding on this herring stock. However, the absence of this nematode in the present study indicates that Baltic salmon do not feed on long-range migrating North Sea herring in the western Baltic, and the absence of characteristic marine trematodes such as Lecithaster gibbosus and Derogenes varicus, which are known from salmon in the Atlantic (Dogiel & Petruschevski 1934), further reflects the local migration of Baltic salmon within the Baltic Sea.…”

Section: Discussionmentioning

confidence: 99%

Endoparasitic helminths in Baltic salmon Salmo salar: ecological implications

Setyawan¹,

Zuo²,

Kania³

et al. 2019

Dis. Aquat. Org.

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Parasites in fish are ecological indicators, as they reflect the host's migration routes, feeding behavior and immune status. We performed a parasitological investigation of sea-running Baltic salmon to study the use of parasites as indicators for this fish stock. The host -a strain of Atlantic salmon Salmo salar -has been isolated for several millennia in the semi-enclosed brackish Baltic Sea, with limited migration to and from the North Sea. Twenty-four salmon (total body weight: 4.2−14.2 kg; total body length: 80−105 cm) were caught by spoon bait in the southern Baltic Sea during feeding migrations, necropsied shortly afterwards and internal organs subjected to parasitological investigation focusing on endoparasitic helminths. The pyloric region was heavily parasitized by the cestode Eubothrium crassum (100% prevalence; intensity: 97−273 parasites per infected fish), reflecting a diet of smaller pelagic fishes. The stomach contained the hemiurid digeneans Brachyphallus crenatus (95.8% prevalence; intensity: 8−151) and Hemiurus luehei (58.3% prevalence; intensity: 2−13), indicating a diet of clupeids. Schistocephalus solidus (25% prevalence; intensity: 1−2), liberated from ingested sticklebacks, the acanthocephalan Echinorhynchus truttae (54% prevalence; intensity: 1−13) and the adult nematode Hysterothylacium aduncum (29% prevalence; intensity: 1−13) were found in the intestine. The liver was parasitized by third-stage nematode larvae of Contracaecum osculatum (45.8% prevalence; intensity: 1−4), but these were growth-stunted and encapsulated. The parasite fauna differs markedly from salmon in North Atlantic waters, and the lack of purely marine parasite species indicates that the Baltic salmon has remained in the Baltic Sea during its life history.

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The occurrence of anisakid nematode larvae in Baltic cod (Gadus morhua callarias L.) and the dynamics of their invasion

Cited by 18 publications

References 1 publication

Distribution of larval anisakids in blue whiting off Portuguese fish market

Distribution of larval anisakids in blue whiting off Portuguese fish market

Accumulation of some heavy metals in Hysterothylacium aduncum (Nematoda) and its host sea bream, Sparus aurata (Sparidae) from North-Eastern Mediterranean Sea (Iskenderun Bay)

Endoparasitic helminths in Baltic salmon Salmo salar: ecological implications

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