OOIR: Observatory of International Research

Papers

(The TQCC of Journal of Ichthyology is 2. The table below lists those papers that are above that threshold based on CrossRef citation counts [max. 250 papers]. The publications cover those that have been published in the past four years, i.e., from 2022-01-01 to 2026-01-01.)

Article	Citations
Spatial and Seasonal Variations in Condition, Somatic Index and Length-Weight Relationship of Capoeta banarescui (Cyprinidae) from The Çoruh River, Northeastern Anatolia, Turkey	18
Sex Inversion, Sexual Dimorphism, and Morphological Differences of Spicara flexuosa (Sparidae)	15
Preliminary Study of Age and Growth of Bluefin Tuna Thunnus thynnus (Scombridae) from Fish Farm in the East of Tunisia	13
On the Capture of Sailfins (Istiophorus platypterus (Istiophoridae)) in Waters off the West Coast of Kunashir Island (Sea of Okhotsk) in September 2023	13
Age and Growth of European Pilchard Sardina pilchardus (Clupeidae) from the Southwestern Mediterranean Sea	13
A New Cryptic Species of Piranha Serrasalmus (Serrasalmidae) from the Bolivian Amazon, Upper Madeira River System	12
Fishes of the Family Melamphaidae over the Seamounts of the Central Atlantic Ocean	12
Growth of the Whitefish Coregonus lavaretus (Salmonidae: Coregoninae) in the Ural Tributaries of the Pechora River	12
Palatability of Amino Acids Isomers for Cichlid Fishes (Cichlidae)	10
On the Origins of the Negative Impact of Invasive Pink Salmon Oncorhynchus gorbuscha on Natural Populations of Atlantic Salmon Salmo salar (Salmonidae)	10
Genus Scopeloberyx	9
Changes in Na+/K+-ATPase Activity and Biomembrane Lipid Composition in Smolts of Pink Salmon Oncorhynchus gorbuscha (Salmonidae) during Their Downstream Migration in the Indera River (White Sea Basin)	8
Molecular and Morphological Analyses Suggest Cryptic Diversity of Eel Gobies, Genus Taenioides (Gobiidae), in Coastal Waters of China	8
Factors Determining the Replenishment of Pink Salmon Oncorhynchus gorbuscha (Salmonidae) on Iturup Island	7
Otolith Abnormalities in Garfish Belone belone (Belonidae): Expanding the Scope of Otolith Deformities in Marine Fishes from the Aegean Sea	7
Aborichthys bajpaii, a New Species of Loach (Nemacheilidae) from Eastern Himalaya, India	7
Fecundity of Lampreys of the World Fauna	7
Size, Shape, Numbers and Composition of Fish Schools	7
“Freshwater Components” in the Populations of Whitespotted Char Salvelinus leucomaenis (Salmonidae) in the North of the Species Range (Kamchatka)	7
Dynamics of Population of the Great Sturgeon (Beluga) Acipenser huso (Acipenseridae) in the Sea of Azov	7
Polymorphism of Walleye Pollock Gadus chalcogrammus Mitochondrial DNA Control Region in the Asiatic Part of the Range and its Phylogeographic History	7
Species Composition, Abundance, Distribution Features and Size Characteristics of Fish of the Genus Liparis (Cottiformes: Liparidae) in the East-Siberian and Laptev Seas	6
Small but Abundant: Distribution and Biology of Arctic Staghorn Sculpin Gymnocanthus tricuspis (Cottidae) in the Kara Sea	6
New Record of An Elongate Unpatterned Moray Eel, Gymnothorax sagmacephalus (Muraenidae) from the Indian Ocean	6
First Data on the Distribution, Some Features of Ecology and Size Composition of Rock Greenling Hexagrammos lagocephalus (Hexagrammidae) in the Southwestern Bering Sea during the Winter-Spring Period	6

Are There Atlantic Species of the Genus Trachinotus (Carangidae), T. falcatus and T. ovatus, in Asian Mariculture?	5
New Morphological and Molecular Data on the Southern Ninespine Stickleback, Pungitius platygaster (Gasterosteidae) from Southern Caspian Sea Basin	5
Comparative Analysis of Biochemical and Histopathological Parameters of the Liver in Three Fish Species of the Black Sea	5
Diurnal Rhythm of Schooling Behavior of Fish	5
Morphological, Biochemical and Functional Changes in Sperm of the Siberian Sturgeon Acipenser baerii (Acipenseridae) during Its Short-Term Storage	5
Deep Finding of Anemonefish Amphiprion frenatus (Pomacentridae, Amphiprioninae) in Symbiosis with Sea Anemone Entacmaea quadricolor (Cnidaria, Actiniaria) on Reefs of the Spratly Archipelago (South Ch	5
Structure of Aggressive Behavior in Underyearlings of the Rainbow Trout Oncorhynchus mykiss (Salmonidae) Changes under the Influence of Diplostomum pseudospathaceum (Trematoda) Parasites	5
First Finding of Larvae of an Undescribed Species of the Genus Lyconus (Lyconidae) in the North Pacific Ocean	5
New Data on Biology of Siberian Stone Loach Barbatula toni (Nemacheilidae) in Langeri River (Sakhalin)	5
Exostoma microadiposa (Sisoridae), a New Glyptosternine Catfish from the Zayul River, South Tibet	5
Distribution, Size Composition, and Feeding of the Okhotsk Snailfish Liparis ochotensis (Liparidae) in the Waters of the Primorye (Sea of Japan)	5
Energy Metabolism and Aerobic Scope in Australoheros facetus (Teleostei: Cichlidae)	5
The Silver Batfish Monodactylus argenteus (Monodactylidae) Cleans in Larval Phase, Services Large Clients and Cleans Diseased Pufferfish	4
Can the Ovum Genome of Tetraploid Sturgeon Species (Acipenseridae) Exhibit the Functional Properties of a Diploid Genome?	4
Schooling Behavior and Feeding of Fish	4
On the Capture of Strongylura anastomella (Belonidae) in Aniva Bay (Sea of Okhotsk) and Information on Its Captures in Other Coastal Areas of Sakhalin Island	4
Amplification and Sequencing of the Complete mtDNA of the Endangered Bitterling, Acheilognathus longipinnis (Cyprinidae), using Environmental DNA from Aquarium Water	4
Life History of Two Carassius (Cyprinidae) Species in the Conditions of Sympatry	4
Length-Weight Characteristics of Some Pelagic Fishes in the High Latitudes of Atlantic Sector of the Southern Ocean	4
Comparative Characteristics of the Size Parameters of the Threaded Sculpin Gymnocanthus pistilliger (Cottidae) in Peter the Great Bay (Sea of Japan) and off the Western Coast of Kamchatka (Sea of Okho	4
Ichthyofauna of the Fresh and Brackish Waters of Russia and Adjacent Areas: Annotated List with Taxonomic Comments. 2. Order Cypriniformes, Suborders Catostomoidei, Cobitoidei and Cyprinoidei	4
Sexual Maturation of the Chub Mackerel Scomber colias (Scombridae) in the East-Central Atlantic	4
First Record of Cotton Mouth Jack, Uraspis secunda (Carangidae) from Southwestern Gulf of Mexico and Clarification of the Presence of Uraspis helvola in the Mexican Pacific	4
First Catches of Pseudaspius leptocephalus (Cyprinidae), Takifugu xanthopterus (Tetraodontidae), and Coryphaena hippurus (Coryphaenidae) in the Waters of the Sakhalin Bay (Sea of Okhotsk)	4
Problems and Prospects of Studying Schooling Behavior of Fish	4
A New Species Nemipterus (Nemipteridae) from Nha Trang Bay (Vietnam, South China Sea)	4
New Data on Adelosebastes latens (Sebastidae) from the Region of the Underwater Elevations of the Hawaiian-Emperor Seamount Chain (Northern Pacific Ocean)	4
Lampreys (Petromyzonti) and Ray-Finned Fishes (Actinopterygii) in the Editions of the Red Data Book of Russia of 1983–2021	4
Changes in the Activity of Na+/K+-ATPase and in the Lipid Composition of the Gills of Pink Salmon Oncorhynchus gorbuscha (Salmonidae) from the White Sea in the Course of Spawning Migration	4
Comparative Analysis of Natural- and Hatchery-Origin Chum Salmon Oncorhynchus keta (Salmonidae) Spawners Identified in Mixed Stock with Otolith Marking	4
Chronic Starvation-Induced Alterations in Biochemical Parameters and Hypothalamic-Pituitary-Testicular Axis in the Mozambique Tilapia Oreochromis mossambicus (Cichlidae)	4
Nomenclature of Pigmentation of the Larvae of Lanternfish (Myctophidae)	4
Taxonomy and Phylogenetic Relationships of Cyprinid Fish of Genus Hemiculter (Cyprinidae, Xenocypridinae): Sharpbellies of the Species Group Hemiculter lucidus	4
Presence of a Bisexual Gonad: Implications for Protogynous Sex Change in the White-Edged Lyretail Variola albimarginata (Serranidae)	3
The Olfactory Organ of the Barramundi Lates calcarifer (Latidae)	3
Ichthyoplankton in the Southwestern Kara Sea	3
First Record of Cookeolus japonicus (Priacanthidae) and Range Extension of Gephyroberyx darwinii (Trachichthyidae) in the Gulf of Mexico	3
Caspian Lamprey Caspiomyzon wagneri (Petromyzontidae): A Review of Historical and Modern Data	3
Morphological Variability of Far Eastern Redfins of the Genus Pseudaspius (Leuciscidae)	3
Mechanisms of Schooling Behavior of Fish	3
Biological Characteristics and State of the Least Cisco Coregonus sardinella (Salmonidae) Fishery in the Yana River of the Republic of Sakha (Yakutia)	3
A New Hotspot of Salmonid Adaptive Radiation Revealed: Multiple Diversifications of Salvelinus malma (Salmonidae) Sharing Freshwater Habitats in Kamchatka	3
Biological Parameters of Trachurus mediterraneus (Carangidae) off the Coast near Southwestern Crimea during the Period from 2020 to 2022	3
The Problems of DNA-Barcoding the Shads of Genus Alosa (Alosidae) of the Ponto-Caspian Basin	3
Comparative Morphology of the Zona Radiata in Oocytes of Korean Bitterlings from the Genera Rhodeus, and Acheilognathus (Cyprinidae)	3
The Finding of the Second Canestrini’s Organ in Loach Species (Cobitidae) Characterized by a Single Lamina Circularis on the First Branched Ray of the Pectoral Fin in the Mature Males. An Atavism or a	3
Origin, Phylogeny, and Taxonomy of Lenoks of the Genus Brachymystax (Salmonidae): Available Data, Their Interpretation, and Unresolved Problems	3
Reproductive Biology of Male Blackhand Paradise Fish Polynemus melanochir (Polynemidae) from Southwestern Vietnam	3
Vertebral Column Variation of Mudskippers (Gobiidae: Oxudercinae): Early Stages of Water-to-land Transition	3
Features of Inner Ear Morphology of Gibel Carp Carassius gibelio (Cyprinidae)	3

Distribution, Size Composition and Feeding of the Barred Snailfish Crystallias matsushimae (Liparidae) in the Russian Zone of the Sea of Japan	3
Morphological and DNA Barcoding Evidence Confirms the Presence of Semaprochilodus taeniurus (Prochilodontidae) in the Peruvian Amazon Basin	3
Features of Biology of Tonlesapia tsukawakii (Actinopterygii, Callionymidae) in the Mekong Delta, Vietnam	3
Erratum to: Effect of Transient Thyrotoxicosis and Hypothyroidism on the Rheoreaction of Zebrafish Danio rerio (Danionidae)	3
Ontogeny of Larval Pearl-Spotted Killifish Paraphanius mento (Aphaniidae) Distributed in the Nemrut Crater Lake (Eastern Turkiye): A Histological and Microscopic Perspective	3
A Preliminary Study on the Morphometric Features of the European Eel, Anguilla anguilla (Anguillidae) in Gediz Lagoon (Izmir Bay, the Aegean Sea): Special Emphasis to Sexual Dimorphism	3
Effect of Temperature on Spontaneous Locomotor Activity of the Saddler Bichir Polypterus endlicherii (Polypteridae)	3
European River Lamprey Lampetra fluviatilis (Petromyzontidae) of the Pskov Lakeland: Current State of Isolated Populations	3
Peripheral Blood Leukocyte Composition of the Atka Mackerel Pleurogrammus monopterygius (Hexagrammidae) and Chum Salmon Oncorhynchus keta (Salmonidae) from the Bering Sea	3
Discriminant Geographic Variation of Saccular Otolith Shape and Size in the Common Pandora, Pagellus erythrinus (Sparidae) across the Gulf of Gabes, Tunisia	3
Seasonal Distribution and Size Composition of Great Sculpin Myoxocephalus polyacanthocephalus (Cottidae) in Russian Waters of the Sea of Japan	3
Morphometric Analyses of the Angular Roughshark, Oxynotus centrina (Oxynotidae), with Biological Notes on Specimens from the Sea of Marmara	3
Survival and Level of Thyroid Hormones and Ions in Armored Catfish (Loricariidae) at Increasing Water Salinity	3
Age, Growth, Maturation, and Mortality of Grass Goby Zosterisessor ophiocephalus (Gobiidae) of the Karkinitsky Gulf, the Black Sea	3
Dynamics of the Timing of Mass Spawning for Saffron Cod Eleginus gracilis (Gadidae) in the Amur Bay, Sea of Japan	3
Percentage of Leukocytes in Peripheral Blood, Head Kidney, and Spleen of the Abramis brama (Cyprinidae) Bream of the Upper Volga Reservoirs	3
Morphology of the Buccal and Opercular Sealing Apparatus in Mudskippers (Gobiidae: Oxudercinae)	3
Free Cartilages of the Zebrafish Danio rerio (Danionidae) Caudal Fin Endoskeleton	3
Assessment of the Reproduction Efficiency of the Atlantic salmon Salmo salar (Salmonidae) in the Kola River (Kola Peninsula) Based on Data on the Density of Juveniles	3
Evolutionary and Ecological Aspects of the Population Structure Formation of Sockeye Salmon Oncorhynchus nerka (Salmonidae) in Western Kamchatka	3
Neotype Designation for Coregonus fluviatilis (Salmonidae: Coregoninae) from the Only Known Museum Specimen	3
Ichthyofauna of the Fresh and Brackish Waters of Russia and Adjacent Areas: Annotated List with Taxonomic Comments. 1. Families Petromyzontidae–Pristigasteridae	3
Reproductive Biology, Captive Breeding and Larval Development of the Threatened Deocata Pipefish Microphis deocata (Syngnathidae)	3
Thyroid Hormones in the Diversification of Pigment Patterns in Teleosts	3
Mass Occurrence of Walleye Pollock Gadus chalcogrammus (Gadidae) in the Surface Layer of the Oyashio Basin (Western North Pacific): Possible Benefit from Abundant Copepods	3
Species Diversity, Diagnostic Characters, and Distribution of the Tubenose Gobies of Genus Proterorhinus (Gobiidae). I. A New Species of the Tubenose Goby from the Water Bodies of the Eastern Coast of	2
Comparative Analysis of the Morphological Diversity Structure of Altai Osmans of the Genus Oreoleuciscus (Cyprinidae) in the Riverine Populations of Three Mongolian Water Systems	2
First Record of Margrethia valentinae (Gonostomatidae) in the Western South Atlantic, with Remarks on the Taxonomy and Distribution of the Genus Margrethia	2
Predictions about the Pink Salmon Oncorhynchus gorbuscha (Salmonidae) Catches on Iturup Island	2
Protandrous Hermaphroditism in Hilsa Shad, Tenualosa ilisha (Dorosomatidae), Confirmed by Histological Data	2
Biochemical Differentiation in Embryos and Larvae of the Atlantic Salmon Salmo salar (Salmonidae) and its Possible Relationship with Migration Polymorphism	2
Synchrotron Microtomographic Osteology of the Chinese Subterranean Catfish: Description and Systematic Analysis	2
Gonadal and Germ Cells Morphology of Nuchequula gerreoides and Eubleekeria splendens (Leiognathidae) from the Pranburi River Estuary of Thailand	2
Annual Reproductive Cycles and Fecundity of Four-Eyed Sleeper Bostrychus sinensis (Butidae) in a Mangrove Forest National Park from Northern Vietnam	2
Biological Characteristics of Simushir Snailfish Polypera simushirae (Liparidae) from the Pacific Waters of the Northern Kuril Islands in Autumn	2
Temperature Preference and Locomotor Activity in a Thermogradient Field of the European Bitterling Rhodeus amarus (Acheilognathidae)	2
Reproductive Characteristics of Reciprocal Hybrids of Sturgeon Species with Different Ploidy Levels: Sterlet Acipenser ruthenus and Kaluga A. dauricus (Acipenseridae)	2
Genetic Variability and Relationships of the Threaded Sculpin Gymnocanthus pistilliger (Cottidae)	2
Activity of Enzymes of Energy and Carbohydrate Metabolism in the Organs of Pink Salmon Oncorhynchus gorbuscha (Salmonidae) during Spawning Migration	2
Erratum to: A New Species of Golden Loach (genus Sabanejewia, Cobitidae) from the Sea of Azov Basin	2
Growth, Gametogenesis, and Patterns Forming the Diversity of Life Cycle Strategies in Whitespotted Char Salvelinus leucomaenis (Salmonidae) in the Kol River Basin (Western Kamchatka)	2
Biological Characteristics of the Invasive Gambusia holbrooki in the Wetland, the Lake Van Basin, Turkey	2
Spatial Differentiation of Whitespotted Char × Dolly Varden Hybrids (Salvelinus leucomaenis × S. malma, Salmonidae) and Their Parental Char Species in the Utkholok River (Northwestern Kamchatka). Spec	2
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	2
New Distributional Record for the Two Gobies (Gobiidae) from the North-Eastern Arabian Sea, Indian Ocean	2
Annotated List of Ichthyofauna of Inland and Coastal Waters of Sakhalin Island. 5. Families Cyclopteridae—Liparidae	2
Components of Blood and Blood Cytochemical and Biochemical Characteristics of Three Cartilaginous Fish Species in Orders Orectolobiformes and Myliobatiformes	2
The First Capture of the Whiting Merlangius merlangus (Gadidae) in the Dvina Bay of the White Sea	2
Reproductive Condition in the Caspian Anadromous Shad Alosa kessleri kessleri (Alosidae) during Spawning Migration in the Volga River	2
Internal Structure of a Fish School	2
Diet Composition of Skates of the Barents Sea in 2004–2021	2
Lipid Profile of the Muscle Tissue of Some Mesopelagic Fish Species of the Families Stomiidae and Myctophidae from Different Depths of the Irminger Sea, North Atlantic	2
Spine Anomalies and Vertebral Phenotypes in the Underyearlings of Roach Rutilus rutilus (Cyprinidae) after Separate and Combined Exposure to a Magnetic Field and Metrifonate on Embryos	2
Direct Ageing and Growth using Dorsal Fin Spines of Bluefin Tuna Thunnus thynnus (Scombridae) Reared in Sea Cages and a Comparison with Wild Populations	2
Comparative Analysis of Morphological Diversification in Large African Barbs of the Genus Barbus (Labeobarbus auctorum, Cyprinidae) and Altai Osmans of the Genus Oreoleuciscus (Leuciscidae)	2
The Ratio of Leukocytes in Peripheral Blood and Immunocompetent Organs of Chars of the Genus Salvelinus (Salmonidae) in the Lake Kronotskoe Basin	2
Ontogenetic Effects and Morphological Consequences of the Goitrogen Treatment on the Caudal Fin Skeleton of Zebrafish Danio rerio (Danionidae)	2
Erratum to: An Oldest Record of the Shark Cosmopolitodus planus (Lamnidae) from the Lower Miocene of the Sakhalin, Russia	2
Qualitative Assessment of Status of Fishery Stocks of Black-Spined Herring Alosa kessleri kessleri Alosidae in Volga River Delta with LBI Method	2
Distribution and Some Aspects of Biology of Hozukius guyotensis (Sebastidae) in the Area of the Emperor Seamount Chain	2
Development of Single Nucleotide Polymorphism Markers for the Autotetraploid Scaphirhynchus Sturgeons (Acipenseriformes)	2
Life History of European Bitterling Rhodeus amarus (Acheilognathidae) in Two Ponds of Central Russia. 1. Ontogenetic Stages and Reproductive Cycle	2
Genetic Diversity and Population Structure of Cultured and Wild Barramundi Lates calcarifer (Latidae) in Taiwan	2
Erratum to: Modeling for Scenarios for Stock Recovery of Russian Sturgeon Acipenser gueldenstaedtii in the Sea of Azov in the Absence of Natural Reproduction	2
Mitogenome Characterization of a Vulnerable Gastromyzontid Fish, Beaufortia pingi (Gastromyzontidae): Genome Description and Phylogenetic Considerations	2
A New Species of Propimelodus (Pimelodidae) from the Upper Madeira System, Amazon Basin	2
New Species of the Damselfish Genus Chromis (Pomacentridae) from Vietnam	2
Distribution, Ecology and Size Composition of the White-Blotched Skate Bathyraja maculata (Arhynchobatidae) in the Northeastern Sea of Okhotsk during the Hydrological Summer	2
A New Species of Piranha (Serrasalmus, Serrasalmidae) from the Upper Madeira River System, Amazon Basin, Bolivia	2
The Role of Respawning Individuals in the Reproduction of Atlantic Salmon Salmo salar (Salmonidae). Mathematical Simulation	2
Distribution and Size Composition of the Snowy Sculpin Myoxocephalus brandtii (Cottidae) Near the Mainland Coast of the Northern Sea of Japan	2
Protective Function of a Fish School	2
Sound Producing in the Three-Spot Gourami Trichopodus trichopterus (Osphronemidae) during Feeding	2
The First Capture of the Prussian Carp Carassius gibelio (Cyprinidae) In Avacha Bay, Kamchatka	2
Triplophysa shannanensis, a New Species of Tibetan Stone Loach (Nemacheilidae) from the Yarlung Tsangpo-Brahmaputra River, Tibet	2
Ichthyoplankton of the Neritic Zone of the Eastern Part of the Sea of Okhotsk in June 2018	2
Development of Microsatellite Markers for Schizothorax macropogon (Cyprinidae)	2