Journal of Ichthyology
ISSN (Print): 0042-8752
Media registration certificate: ПИ № ФС 77 - 80520 от 23.03.2021
Founders: Russian Academy of Sciences; Severtsov Institute of Ecology and Evolution of RAS
Editor-in-Chief: Pavlov Dmitrij Sergeevich
Number of issues per year: 6
Indexation: Higher Attestation Commission list, RISC, RISC core, RSCI, White list (3rd level), Crossref
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Том 65, № 3 (2025)
Articles
MORPHOLOGICAL VARIABILITY AND SPECIES STRUCTURE OF TUBENOSE GOBIES OF GENUS PROTERORHINUS (GOBIIDAE) OF THE BLACK SEA, THEIR DIAGNOSTIC CHARACTERS, AND DISTRIBUTION PATTERNS WITHIN THE BASIN
Аннотация
On the basis of morphological studies of museum collections based on preliminary analysis of genetically identified samples, a system of species diagnostic characters and a key for identification of three Black Sea species of tubenose gobies (genus Proterorhinus) were developed. These species, the validity of which is confirmed by the data of molecular genetic analysis, are very similar in external morphology and are differentiated by a set of characters, the most important of which are the number of branched rays in the second dorsal and anal fins, the length of the base of the second dorsal and anal fins, and the distance from the anterior tip of the snout to the origin of the second dorsal and anal fins as a percentage of the standard body length. Of the three species of tubenose gobies, P. victori has the narrowest distribution range, found only in rivers and lakes of the eastern coast of the Black Sea in Georgia and Abkhazia. P. marmoratus is distributed along the entire northern coast of the Black Sea from Bulgaria in the west to Georgia in the east. The modern range of P. semilunaris includes the basins of the Danube, Dniester, Dnieper, Maritsa, and Struma rivers, and, due to invasions and accidental introduction, also the basins of the Rhine and Vistula rivers, a number of water bodies in the Crimea, and the Great Lakes system in United States; haplotypes of this species have been identified in rivers of Georgia and Abkhazia. The observed euryhalinity of species, their preference for freshwater or marine and brackish-water habitats are discussed in connection with the presumed species-specificity of breeding special features.
Journal of Ichthyology. 2025;65(3):263-279
263-279
THE MORPHOLOGICAL AND GENETIC DIVERSITY OF THE CASPIAN ANADROMOUS SHAD, ALOSA KESSLERI KESSLERI (ALOSIDAE) FROM THE AKHTUBA RIVER (LOWER VOLGA REGION) IN THE CURRENT TIME PERIOD. TO THE QUESTION OF THE INTRASPECIES STRUCTURE
Аннотация
The paper presents data on variability of morphological and population-genetic features of the Caspian anadromous shad Alosa kessleri kessleri from the Akhtuba River for three years in a row (2020-2022). Studies of the ichthyoplankton samples for the first time reveal that the spawning of the Caspian anadromous shad occurs in the middle reach of the Akhtuba River, at a distance of 180-290 km from the upper boundary of the Volga Delta. The studied species is characterized by stable values of body length and weight, sex ratio, and morphological features in the samples. A low level of its genetic variability has been established by nuclear markers of microsatellite loci and the COI gene. Nine haplotypes have been identified in the Cyt b gene, two of which differ significantly from the others. In general, the Caspian anadromous shad is characterized by high haplotype diversity in combination with low values of nucleotide diversity. The obtained results are descriptive and can be regarded as the initial stage (hypothesis development and discussion) of studying the structure of the Caspian anadromous shad in the Lower Volga Basin.
Journal of Ichthyology. 2025;65(3):280-300
280-300
FEATURES OF VARIABILITY OF SOME MORPHOLOGICAL CHARACTERISTICS IN WHITE FISH COREGONUS LAVARETUS SENSU LATO FROM WATER BODIES OF THE SOUTHERN AND ARCTIC REGIONS OF SIBERIA
Аннотация
The article presents the results of the study of morphological variability of 22 populations of whitefish Coregonus lavaretus sensu lato from Siberian water bodies and Baikal omul C. migratorius used as an outgroup. It has been shown that, despite similar ecology (river, lake), Arctic and Southern Siberian whitefish have different morphological appearances. Modern lacustrine-riverine forms of whitefishes from the water bodies of Southern Siberia are always have a tall body and have a short high caudal peduncle, while such forms from Arctic water bodies are slender bodied and have a long caudal peduncle. Southern Siberian lacustrine planktophagous whitefishes are always slender bodied, with a long caudal peduncle. Arctic lacustrine (estuary) whitefishes always have a low body and a relatively short caudal peduncle. The different patterns of body shape variability in Arctic and Southern Siberian whitefishes are more accurately explained by their short evolutionary history and hybridization with distant forms/species, rather than by formed adaptations and the influence of environmental conditions.
Journal of Ichthyology. 2025;65(3):301-314
301-314
FIRST RECORD OF THE ROCK GREENLING HEXAGRAMMOS LAGOCEPHALUS (HEXAGRAMMIDAE) IN THE NORTHERN SEA OF OKHOTSK
Аннотация
The rock greenling Hexagrammos lagocephalus (Pallas, 1810) was caught for the first time in the Taui Bay of the northern Sea of Okhotsk. It became the fifth species of the Hexagrammidae to be recorded from this area. A brief description of the morphological characters and coloration of the caught specimen is given. The distribution of the rock greenling in the Sea of Okhotsk is discussed. The rarity of catches of this species off the coast of northwestern Kamchatka is probably a result from the absence of suitable rocky habitats with dense kelp forests.
Journal of Ichthyology. 2025;65(3):315-320
315-320
ADDITIONS TO THE OCCURRENCE OF TWO RARE SPECIES OF ROCKFISH OF THE GENUS SEBASTES (SEBASTIDAE) IN PACIFIC WATERS OFF THE KURIL ISLANDS
Аннотация
New data are presented on the occurrence of the northern rockfish Sebastes polyspinis and angry rockfish S. iracundus off the Kuril Islands. It is shown that these species are very rare in Pacific waters off the Middle Kuril Islands. The catches of northern rockfish in this area indicate a southward expansion of its geographic distribution within the Northwestern Pacific. The northern periphery of the range of angry rockfish (47°-49°N) is presumably not a sterile eviction zone, and the full life cycle of its individuals can occur there.
Journal of Ichthyology. 2025;65(3):321-327
321-327
ON PELAGIC FISHES CAPTURED IN OCEANIC WATERS OF THE NORTHERN PART OF THE CENTRAL ATLANTIC OCEAN IN AUTUMN 2019 (RESULTS OF THE 44-45th RESEARCH CRUISES OF THE R/V AKADEMIK NIKOLAJ STRAKHOV)
Аннотация
Data on catches in open waters of the northern tropical part of the Central Atlantic are presented for 16 species of fish from eight families. New findings of the flying fishes Cheilopogon furcatus, C. nigricans and Prognichthys occidentalis, halfbeaks Oxyporhamphus micropterus similis and Hemiramphus balao in the study area allow us to somewhat update current ideas about the distribution of these species. Our collections show a sharp dominance in numbers of four-winged flying fishes (subfamily Cypselurinae) over two-winged flying fish (subfamily Exocoetinae), which dominated the study area in previous years. In addition, within the subfamily Cypselurinae, the nerito-oceanic species Hirundichthys affinis, C. nigricans and P. occidentalis, which were previously absent or rare in the study area, began to quantitatively predominate over the oceanic species H. speculiger, C. exsiliens and P. glaphyrae. We attribute all these changes to invasion of large quantities of sargasso seaweeds (genus Sargassum) in the study area, which apparently facilitated colonization of open ocean waters by previously rare species. Large quantities of sargasso weeds may also lead in the future to the increasingly frequent appearance in the open waters of the tropical Atlantic of coastal species characteristic of flotsam, such as Lobotes surinamensis, Caranx crysos and H. balao.
Journal of Ichthyology. 2025;65(3):328-342
328-342
SOME ASPECTS OF THE ECOLOGY, MORPHOLOGY AND ORIGIN OF THE POACHER PODOTHECUS HAMLINI (AGONIDAE) IN THE NORTHERN PART OF THE SEA OF JAPAN
Аннотация
The results of the study of bathymetric and spatial distribution of the green poacher Podothecus hamlini Jordan et Gilbert, 1898 in the Russian waters of the Sea of Japan based on bottom trawl surveys are presented. The locations of its catches outside of the Russian zone are given. Occurring almost in all parts of the shelf and upper part of the continental slope of the northern part of the Sea of Japan, the species formed aggregations throughout the year in the western part of Peter the Great Bay. The bathymetric and temperature ranges in which P. hamlini catches were recorded were quite wide and changed depending on the season. Variability in the number of rays in fins was shown, and cases of teratological changes were noted. A hypothesis is proposed that P. hamlini as an independent species formed relatively recently, during the isolation of the Sea of Japan.
Journal of Ichthyology. 2025;65(3):343-354
343-354
DEGRADATION OF SKELETAL MUSCLE PROTEINS IN PINK SALMON ONCORHYNCHUS GORBUSCHA (SALMONIDAE) DURING SPAWNING MIGRATION
Аннотация
In fish, skeletal muscle serves as a depot of plastic and energy substrates, which are actively consumed to maintain their viability during spawning migration and spawning. The content of water-soluble protein and its oxidized (carbonylated) fraction, as well as the activity of protein hydrolyzing enzymes (intracellular proteases) in skeletal muscle of pink salmon Oncorhynchus gorbuscha producers during the spawning migration from the White Sea to the Indera River were characterized. At the beginning of the sea-to-river migration, skeletal muscle of female pink salmon showed a significant increase in cathepsin D activity, which plays a major role in muscle protein degradation, without significant quantitative changes in the soluble protein fraction. However, an accumulation of carbonylated proteins, markers of oxidative stress, was observed during the spawning migration of pink salmon. It should be emphasized that the changes described are only characteristic of the white skeletal muscle and no changes were detected in the red muscle (which provides a long swimming effort due to aerobic metabolism) during the spawning migration.
Journal of Ichthyology. 2025;65(3):355-363
355-363
MORPHOFUNCTIONAL CHARACTERISTICS OF THE BLOOD ERYTHRON OF THE GOLDEN GREY MULLET CHELON AURATUS (MUGILIDAE) AT THE EARLY STAGES OF ONTOGENESIS
Аннотация
The hematological characteristics of the circulating blood of the golden grey mullet Chelon auratus (Risso, 1810) in the first 3 years of life were studied. The material was obtained simultaneously in March-April at the mullet fish farm (settlement of Belenkoe, Odessa oblast). It was found that in the first year of the life of the golden mullet, an active production of circulating erythrocyte mass occurs. The level of polychromatophilic normoblasts, reflecting the rate of erythropoietic processes in hematopoietic tissue, reaches maximum values in the peripheral bloodstream of fingerlings. Intracellular hemoglobin synthesis occurs at a lower rate. This is accompanied by the appearance of hypochromic erythrocytes in the blood. The value of the mean cellular hemoglobin content (MCH) is at a minimum level of 28.9±0.8 pg (in third-year fish, 37.1±0.8 pg). The blood of fry and yearlings is dominated by large red blood cells (96.9±4.1 mm3) with high values of the nuclear cytoplasmic ratio (NCR): 0.121±0.011. The NCR index decreases by the second year of life as the MCH increases (R2=0.851). In the blood of yearlings, there is a high content of erythrocyte abnormalities (up to 14% of erythroid cells): dacryocytes, cells with invagination of the nucleus, erythrocyte shadows. The presence of dacryocytes in the blood of this age group reflects the development of hypoxia. It follows from the presented results that the first year in the life cycle of the golden grey mullet is the most critical. This should be taken into account when breeding this species in fish farms.
Journal of Ichthyology. 2025;65(3):364-371
364-371
TASTE RESPONSES OF CARP FISHES (CYPRINIDAE) TO CARBOXYLIC ACIDS. 2. FEEDING BEHAVIOR
Аннотация
The feeding behavior of the dace Leuciscus leuciscus, roach Rutilus rutilus, and common carp Cyprinus carpio was studied using orosensory testing with agar pellets containing carboxylic acids and some other substances (10-1 M). We found that feeding behavior is characterized by species-specific features and features common to these fishes. Dace and common carp in about 10% of experiments reject pellets for repeated grasps, the number of which reaches eight and six, respectively. Roach is more likely to manipulate and make repeated grasps of pellets in > 45% of experiments, the maximum number of grasps being 14. The number of repeated grasps does not correlate with the palatability of pellets and does not affect the total duration of their retention in the mouth, which in dace, roach, and common carp does not exceed 1 s in 20, 30, and 60% of experiments, respectively, and positively correlates with the palatability of pellets. The maximum total duration of pellet handling reaches 55 s in dace, 109 s in roach, and 53 s in common carp. When consuming pellets, fish manipulate them many times longer than when not consuming: up to 13 times in dace, 12-15 times in common carp, and up to 20-30 times in roach. Differences in manipulation activity are less pronounced, no more than 1.5-2.0 times. Fish show stereotypic reactions when testing pellets of any taste quality, the differences between stereotypes are stronger the higher the taste attractiveness of pellets. The relationship between the manifestation of behavior during orosensory food testing and peculiarities of fish biology is discussed.
Journal of Ichthyology. 2025;65(3):372-390
372-390