Contents

Journal of Ichthyology

Vol. 61, No. 2, 2021

New grenadier Coelorinchus ganymedes sp. nova from the Waters of Polynesia (Macrouridae)

A. M. Prokofiev p. 175  abstract

Juvenile Individuals of Opahs (Lampridae) from the Atlantic and Pacific Oceans. Notes on the Systematics and Distribution of Opahs, Including the Description of a New Subgenus, Paralampris subgen. nov.

E. I. Kukuev p. 182  abstract

A New Potential Invader: First Record of the Pirambeba Serrasalmus geryi (Characiformes: Serrasalmidae) in the upper Paraná River floodplain, Brazil

G. C. Deprá, A. G. Oliveira, A. B. Silva, A. Frota, H. C. Proença, H. J. Message, R. B. dos Reis and R. R. Ota p. 190  abstract

Life History of Mediterranean Horse Mackerel Trachurus mediterraneus (Carangidae) from Crimea (Black Sea)

D. N. Kutsyn p. 196  abstract

Distribution and Biological Features of Grayling Thymallus thymallus (Thymallidae) in the European North-East of Russia

V. I. Ponomarev and A. B. Zakharov p. 206  abstract

Distribution, Size and Sex Composition of Gymnocanthus pistilliger (Cottidae) off the Western Coast of Kamchatka in the Summer Period and Modern State of its Resources

A. A. Matveev, A. A. Balanov and V. V. Panchenko p. 220  abstract

Age, Growth and Maturity of Red Porgy Pagrus pagrus (Sparidae) from Southeastern Brazil

P. A. S. Costa, A. C. Braga, J. M. S. Vieira, C. E. L. Ferreira, M. C. Barbosa and R. R. B. São-Clemente p. 230  abstract

Feeding of the Fish of the Seamounts of the Walvis Ridge (Southeastern Atlantic Ocean). 1. Rosefish Helicolenus mouchezi, Pelagic Armourhead Pentaceros richardsoni, and the Cape Bonnetmouth Emmelichthys nitidus on the Valdivia Seamount

A. V. Gushchin p. 243  abstract

Population Genetic Structure of Pacific Herring Clupea pallasii in the Northwestern Pacific Ocean Based on Microsatellite Analysis

D. S. Kurnosov and S. Yu. Orlova p. 250  abstract

Distribution of Ichthyoplankton in Relation to Specifics of Hydrological Regime off the Crimean coast (the Black Sea) in the Spring–Summer Season 2017

T. N. Klimova, A. A. Subbotin, I. V. Vdodovich, Yu. A. Zagorodnyaya, P. S. Podrezova and O. A. Garbazei p. 259  abstract

Implications of Physical Barriers on Longitudinal Connectivity in the Ganga River System through Morphological Assessment of Cirrhinus mrigala (Cyprinidae) Populations

A. K. Dwivedi p. 270  abstract

Effect of Hydrometeorological Conditions on Dynamics of Catches (Abundance) of the Primorye Pink Salmon Oncorhynchus gorbusha Based on Retrospective Data (Sea of Japan, Strait of Tartary)

A. V. Lysenko, T. A. Shatilina and L. A. Gayko p. 280  abstract

Electric Discharges in African Upside-Down Catfishes Synodontis (Mochokidae, Siluriformes): Peculiarities and Mechanisms of Electrogeneration

V. D. Baron and A. A. Orlov p. 293  abstract

Tissue Peculiarities of Energy Metabolism Enzyme Activity and ATP Content In Black Sea Ruff Scorpaena porcus (Scorpaenidae)

A. A. Soldatov, I. V. Golovina, E. E. Kolesnikova, I. V. Sysoeva, A. A. Sysoev, T. A. Kukhareva and E. S. Kladchenko p. 299  abstract

Short Communication

A Description of the Lanternfish larva Lampanyctus indicus (Pisces: Myctophidae) from the Western Indian Ocean

Ya. Yu. Bolshakova p. 307  abstract

First Capture of European Flounder Platichthys flesus (Pleuronectidae) in the Southwestern Part of the Kara Sea

G. V. Fuks and Yu. V. Goncharov p. 310  abstract

Records of the Light Dusky Rockfish Sebastes variabilis (Pallas) (Scorpaeniformes: Sebastiidae) and Lesser Prickleback Alectridium aurantiacum (Perciformes: Stichaeidae) in the Western Bering Sea

P. A. Saveliev and A. B. Savin p. 314  abstract

Second Finding of a Rare Species Plectranthias klausewitzi (Serranidae) from the Red Sea

A. M. Prokofiev p. 319  abstract

Similarity of Karyotype Structure in Three Mormyrus Species (Mormyridae) from the White Nile and Omo River Tributaries (Ethiopia)

S. A. Simanovsky, D. A. Medvedev, Fekadu Tefera and A. S. Golubtsov p. 323  abstract