scholarly journals First Record ofAnisakis simplexThird-Stage Larvae (Nematoda, Anisakidae) in European HakeMerluccius merluccius lessepsianusin Egyptian Water

2016 ◽  
Vol 2016 ◽  
pp. 1-8 ◽  
Author(s):  
Yasmin Abou-Rahma ◽  
Rewaida Abdel-Gaber ◽  
Amira Kamal Ahmed
Keyword(s):  
Red Sea ◽  
Positive Relationship ◽  
First Record ◽  
Type I ◽  
Merluccius Merluccius ◽  
Molecular Analyses ◽  
Fish Samples ◽  
Third Stage ◽  
European Hake ◽  
Anisakid Larvae

The prevalence of infection and the identification of anisakid larvae in European hakeMerluccius merluccius lessepsianusfrom Hurghada City, Red Sea Governorate, Egypt, were investigated. Fish samples were collected during the period of February and November 2014. Twenty-two (36.66%) out of sixty examined fish specimens were found to be naturally infected withAnisakistype I larvae mostly found as encapsulated larvae in visceral organs. There was a positive relationship between host length/weight and prevalence of infection. Based on morphological, morphometric, and molecular analyses, these nematodes were identified as third-stage larvae ofAnisakis simplex. The present study was considered as the first report of anisakid larvae from European hake in the Egyptian water.

scholarly journals Occurrence of nematodes of the genus Anisakis in Mediterranean and Atlantic fish marketed in Sardinia

2017 ◽  
Vol 6 (1) ◽  
Author(s):  
Daniele Casti ◽  
Christian Scarano ◽  
Maria Cristina Piras ◽  
Paolo Merella ◽  
Sonia Muglia ◽  
...  
Keyword(s):  
Visual Inspection ◽  
Sensu Stricto ◽  
Body Cavity ◽  
The Body ◽  
Type I ◽  
Merluccius Merluccius ◽  
Commercial Fish ◽  
Scomber Colias ◽  
Third Stage ◽  
The Mean

Anisakiasis is a gastrointestinal fishborne zoonosis caused by the ingestion of third stage larvae of the genus <em>Anisakis</em>. Between January and December 2013, 1112 specimens of four commercial fish species (<em>Engraulis encrasicolus, Merluccius merluccius, Scomber colias</em> and <em>Trachurus mediterraneus</em>) marketed in Sardinia (Italy) were examined for <em>Anisakis</em> sp. The overall prevalence of <em>Anisakis</em> spp larvae was 39.9%, all morphologically identified as Type I. <em>Scomber colias</em> showed the highest prevalence (100%), followed by <em>M. merluccius</em> (Atlantic 91.0%, Mediterranean 71.2%), <em>T. mediterraneus</em> (32.7%) and <em>E. encrasicolus</em> (25.9%). All the larvae found in Mediterranean hosts were genetically identified as <em>Anisakis pegreffii</em>, whereas 90.0% of the larvae found in the Atlantic <em>M. merluccius</em> belonged to <em>Anisakis simplex sensu stricto</em> and 10.0% to <em>A. pegreffii</em>. The mean abundance of <em>Anisakis</em> sp. larvae was positively correlated with fish size in <em>E. encrasicolus</em>, Atlantic <em>M. merluccius</em> and local <em>M. merluccius</em>. The prevalence of infection was greater in the body cavity (37.9%) than in the edible muscle (9.4%). However, 1.8% of the examined fish were infected exclusively in the muscle. Therefore, the risk associated to the consumption of raw or undercooked fishery products poses the need of measures such as visual inspection and preventive treatments to guarantee consumers’ health.

First record of the soil cyanobacterium Nodosilinea epilithica (Synechococcales, Cyanobacteria) in Russia

2016 ◽  
Vol 50 ◽  
pp. 125-141
Author(s):  
A. D. Temraleeva ◽  
S. A. Dronova
Keyword(s):  
Chestnut Soil ◽  
First Record ◽  
Molecular Analyses ◽  
Dry Steppes ◽  
Cyanobacterial Culture ◽  
Volgograd Region ◽  
First Time

Nodosilinea epilithica Perkerson et Casamatta is reported for the first time for Russia. The sample was isolated from a typical chestnut soil in the zone of dry steppes (Volgograd Region) and its identity was confirmed by morphological and molecular analyses. The specific feature of the studied strain is its ability to form nodules at normal (60–75 μmol photons ∙ m-2 ∙ sec-1) light. The number of nodules is supposed to be related to the age of a cyanobacterial culture.

European hake (Merluccius merluccius, Linnaeus 1758) spillover analysis using VMS and landings data in a no-take zone in the northern Catalan coast (NW Mediterranean)

2021 ◽  
Vol 237 ◽  
pp. 105870 ◽  
Author(s):  
Joan Sala-Coromina ◽  
Jose Antonio García ◽  
Paloma Martín ◽  
Ulla Fernandez-Arcaya ◽  
Laura Recasens
Keyword(s):  
Merluccius Merluccius ◽  
Catalan Coast ◽  
Nw Mediterranean ◽  
European Hake

First record of the Cyrtodactylus brevipalmatus group (Squamata: Gekkonidae) from Vietnam with description of a new species

Zootaxa ◽  
2021 ◽  
Vol 4969 (3) ◽  
pp. 492-510
Author(s):  
DZUNG TRUNG LE ◽  
SALY SITTHIVONG ◽  
TUNG THANH TRAN ◽  
L. LEE GRISMER ◽  
TRUONG QUANG NGUYEN ◽  
...  
Keyword(s):  
New Species ◽  
First Record ◽  
Molecular Data ◽  
Species Group ◽  
Molecular Analyses ◽  
Hind Limbs ◽  
Morphological And Molecular Data ◽  
Dorsal Pattern ◽  
A New Species ◽  
Dorsal Tubercle

A new species of the genus Cyrtodactylus is described from Dien Bien Province, northwestern Vietnam based on morphological and molecular data. Cyrtodactylus ngati sp. nov. can be distinguished from remaining congeners by the following combination of characters: maximum SVL 69.3 mm; dorsal pattern consisting of six dark irregular transverse bands between limb insertions; inter-supranasals one; dorsal tubercles present on occiput, body, hind limbs and on first half of tail; 17–22 irregular dorsal tubercle rows at midbody; lateral folds clearly defined, with interspersed tubercles; 32–38 ventral scales between ventrolateral folds; 13 precloacal pores separated by a diastema of 5/5 poreless scales from a series of 7/7 femoral pores in enlarged femoral scales; precloacal and femoral pores absent in females; 1–3 postcloacal tubercles on each side; transversely enlarged median subcaudal scales absent. In the molecular analyses, the new species is shown to be the sister taxon to C. interdigitalis from Thailand. This is the 47th species of the genus Cyrtodactylus and the first member of the C. brevipalmatus species group recorded from Vietnam. 

Behavior and Viability of Third-Stage Larvae of Terranova sp. (Type HA) and Anisakis simplex (Type I) Under Coolant Conditions

1984 ◽  
Vol 47 (1) ◽  
pp. 49-52 ◽  
Author(s):  
THOMAS L. DEARDORFF ◽  
RICHARD B. RAYBOURNE ◽  
ROBERT S. DESOWITZ
Keyword(s):  
Marine Fishes ◽  
Anisakis Simplex ◽  
Western Pacific ◽  
Type I ◽  
Fish Tissues ◽  
Cold Temperatures ◽  
Fish Products ◽  
Third Stage ◽  
Raw Fish ◽  
The Western Pacific

This study reports effects of storage at cold temperatures on behavior and survival of third-stage larvae of Terranova sp. (type HA) and Anisakis simplex (type I) in marine fishes. Snappers, caught near the Hawaiian Islands, were examined to determine whether type HA and type I larvae could migrate from the viscera of ungutted fishes into edible musculature when maintained at 12, 8, and 0°C. Our data are suggestive that both type HA and type I larvae possess the ability to migrate. Temperatures of 12, 8, and 0°C had no noticable adverse affect on viability of both larval types within fish tissues; however, both larval types were extremely sensitive to temperatures below freezing. Death of both larval types encysted within Hawaiian snappers occurred by day 4 at −5°C and within 24 h at −10, −15, and −20°C. Other type I larvae, collected from fishes (Sebastes spp.) imported to Hawaii from the western Pacific, survived for slightly longer periods at −5, −10, −15, and −20°C when compared with type I larvae from Hawaiian fishes. Subjecting Hawaiian snappers to at least −20°C for 1 d and imported rockfishes to at least −20°C for 5 d is recommended to inactivate the living anisakines before ingesting any raw fish products.

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