Lemuru fish from the Clupeidae family in various countries have many similarities that are difficult to distinguish between one species and another. This study aims determine morphological molecular characteristics, genetic diversity, kinship of lemuru Tanjung Luar waters with countries. The feature used this was a marker for cytochrome c oxidase subunit 1 (CO1) gene. sample caught by small-sca...

Recent studies based on molecular data (18S rDNA and partial 28S rDNA) and morphology did not resolve a terminal polytomy within the Polyopisthocotylea. Here, we have used sequences from the full domain D2 of the 28S rDNA for 24 species (18 new sequences) with three phylogenetic methods, maximum parsimony, neighbour-joining and maximum likelihood, to infer the relationships among the Polyopisth...

Here, we present the ITS ribosomal DNA (rDNA) sequence data on 330 larvae of nematodes of the genus Anisakis Dujardin, 1845 collected from 26 different bony fish species from 21 sampling locations and different climatic zones. New host records are provided for Anisakis simplex (Rudolphi, 1809) sensu stricto (s.s.) and A. pegreffli Campana-Rouget et Biocca, 1955 from Anoplopoma fimbria (Pallas) ...

In most teleost fishes, the optic nerves decussate completely as they project to the mesencephalic region. Examination of the decussation pattern of 25 species from 11 different orders in Pisces revealed that each species shows a specific chiasmic type. In 11 species out of the 25, laterality of the chiasmic pattern was not determined; in half of the individuals examined, the left optic nerve r...

The occurrence of acanthocephalans of the genus Neoechinorhynchus Stiles and Hassall, 1905 in Vietnamese waters is reported for the first time. Six new species are described from seven species of marine fish of the families Belonidae, Clupeidae, Megalopidae, Mugilidae, and Sciaenidae, collected in Halong Bay of the eastern seaboard of Vietnam in 2008 and 2009. These are Neoechinorhynchus (Neoec...

It is the first time, when genetic diversity and the common kilka population structure were investigated throughout the areal. Data about the species condition at the Upper Volga basins were updated accordingly to modern condition. Physiological and ecological adaptations to northern water basins were evaluated. Significance of interaction between some loci and the most important abiotic enviro...