Top 10 most downloaded papers in 2026 (number of downloads)

1) AA2023-1 (1977)	2) AA2026-11 (858)	3) AA2026-4 (798)	4) AA2023-8 (585)	5) AA2026-17 (536)
6) AA2027-27 (532)	7) AA2026-26 (404)	8) AA2020-5 (399)	9) AA2023-21 (387)	10) AA2026-10 (363)

Aquatic Animals
ISSN: 2434-8643		Previous volumes	vol. 2019	vol. 2020	vol. 2021	vol. 2022	vol. 2023
Home			vol. 2024	vol. 2025
Latest volume	vol. 2026
Original article
Comparative study of capture methods for the red swamp crayfish (Procambarus clarkii) in wetlands
Matsuo, S., Ohba, S., Yoshikawa, N, Fujioka, Y., Maibara, S., Kasuya, T., Yamamoto, T., Hashimoto, K., Terasaki, K., Murakawa, A.
6 January 2026	AA2026-1
https://doi.org/10.34394/aquaticanimals.2026.0_AA2026-1
Original article
Cryptic diversity, erroneous species identification, sequencing errors, or shadows of nuclear mitochondrial DNA segments (NUMTs)? A case study in Panulirus lobsters
Chow, S., Borsa, P.
9 January 2026	AA2026-2
https://doi.org/10.34394/aquaticanimals.2026.0_AA2026-2
Original article
Successful reproduction in freshwater mussels within a conservation pond by the endangered bitterling Rhodeus atremius suigensis maintained for 30 years via artificial insemination
Shigemasa, K., Kanzaki, S., Takahashi, T., Sato, T., Furumoto, S., Moriuchi, K., Nakata, K.
16 January 2026	AA2026-3
https://doi.org/10.34394/aquaticanimals.2026.0_AA2026-3
Original article
Distributional record of Hydrovatus Motschulsky, 1853 (Dytiscidae) from Akita Prefecture, Japan
Uchida, D., Iwata, Y., Osafune, Y., Watanabe, K.
17 January 2026	AA2026-4
https://doi.org/10.34394/aquaticanimals.2026.0_AA2026-4
Original article
Records of the hermit crabs and their parasitic crustaceans in Sado Island
Kajimoto, A., Shinoda, H., Tsunoda, K., Kuwahara, R., Natsukawa, K., Toyota, K.
20 January 2026	AA2026-5
https://doi.org/10.34394/aquaticanimals.2026.0_AA2026-5
Original article
Molecular phylogenetic relationships of Eptatretus species in Japanese waters
Maki, S., Baba, R., Maezawa, N., Ichinoseki, S., Saruwatari, T., Sugiyama, H., Kitano, T.
30 January 2026	AA2026-6
https://doi.org/10.34394/aquaticanimals.2026.0_AA2026-6
Short paper
Searching for land hermit crabs using artificial debris as shells on Ishigakijima Island, Japan
Fukuda, K., Hamasaki, K., Murata, R., Miura, T., Dan, S.
31 January 2026	AA2026-7
https://doi.org/10.34394/aquaticanimals.2026.0_AA2026-7
Corrected article
Corrected version: Impact of the invasive signal crayfish, Pacifastacus leniusculus, on native salmonids, Oncorhynchus keta and Oncorhynchus masou, in Hokkaido, Japan
Kannno, T., Yamamoto, A., Machida, Y., Kanaiwa, M.
4 February 2026	AA2026-8
https://doi.org/10.34394/aquaticanimals.2026.0_AA2026-8
Original article
Species identification of egg masses of snailfish (Liparidae) collected from Rausu, Hokkaido, Japan, with notes on their spawning substrates and larval and juvenile morphology
Hibino, M., Kai, Y.
5 February 2026	AA2026-9
https://doi.org/10.34394/aquaticanimals.2026.0_AA2026-9
Original article
Low-cost and practical rearing method for the freshwater unionid mussel Beringiana fukuharai I. Evaluation of the soil and organic materials
Yashima, Y., Fujita, M., Nakanishi, R., Kitagawa, T.
19 February 2026	AA2026-10
https://doi.org/10.34394/aquaticanimals.2026.0_AA2026-10
Original article
Rhinogobius brunneus collected from Hachijo-jima island: first specimen-based records of the genus Rhinogobius (Teleostei: Gobiidae) in the Izu Islands, Tokyo Metropolis, Japan
Oyama, D., Saito, H., Fukatani, M., Arao, K., Suzuki, T., Senou, H.
21 February 2026	AA2026-11
https://doi.org/10.34394/aquaticanimals.2026.0_AA2026-11
Original article
Microstructure of otoliths in larval and juvenile Shishamo smelt Spirinchus lanceolatus, a cold-water fish species
Yoshida, T., Nakaya, M., Kondo, Y., Nii, H., Ataka, J., Hasegawa, R., Okada, N., Takatsu, T.
22 February 2026	AA2026-12
https://doi.org/10.34394/aquaticanimals.2026.0_AA2026-12
Data paper
Inventory and faunal characteristics of benthic animals in the Jūniko Lakes, Shirakami Mountains, northern Japan
Ohtaka, A., Kimura, N.
23 February 2026	AA2026-13
https://doi.org/10.34394/aquaticanimals.2026.0_AA2026-13
Short paper
Endangered freshwater pearl mussel Margaritifera laevis with epilithic red alga found in a small stream on the Noto Peninsula, Japan
Kishi, D.
25 February 2026	AA2026-14
https://doi.org/10.34394/aquaticanimals.2026.0_AA2026-14
Original article
First record of the fish parasitic crustacean Cinusa nippon (Isopoda: Cymothoidae) from the Seto Inland Sea
Tsunoda, K., Kashima, R., Aratani, Y., Toyota, K.
25 February 2026	AA2026-15
https://doi.org/10.34394/aquaticanimals.2026.0_AA2026-15
Short paper
Redescription of the rarely encountered starfish Ctenophoraster donghaiensis (Asteroidea: Paxillosida) from Japan
Kobayashi, I., Azuma, T., Nishi, K., Kodama, M.
6 March 2026	AA2026-16
https://doi.org/10.34394/aquaticanimals.2026.0_AA2026-16
Original article
Additional records of Luciogobius pallidus and Luciogobius cf. albus in Kochi Prefecture, Japan
Okamura, K., Yamashita, R., Matsunaga, T., Tachibana, M., Ota, K., Takahashi, H., Kai, Y., Endo, H.
7 March 2026	AA2026-17
https://doi.org/10.34394/aquaticanimals.2026.0_AA2026-17
Original article
Additional records of Synodus pacificus (Teleostei: Aulopiformes) in the western Pacific Ocean
Furuhashi, R., Motomura, H.
12 March 2026	AA2026-18
https://doi.org/10.34394/aquaticanimals.2026.0_AA2026-18
Short paper
Argulus coregoni (Crustacea: Branchiura: Argulidae) parasitic on a freshwater minnow Opsariichthys platypus (Cypriniformes: Xenocyprididae) in Gifu Prefecture, Japan
Kamite, Y., Kamite, N., Yokoi, H.
17 March 2026	AA2026-19
https://doi.org/10.34394/aquaticanimals.2026.0_AA2026-19
Original article
The clingfish Aspasma ubauo from the Oki Islands, the first record in Shimane Prefecture, Japan
Kashima, R., Tsunoda, K., Fukumoto, Y., Tamaki, S., Kai, Y., Toyota, K.
20 March 2026	AA2026-20
https://doi.org/10.34394/aquaticanimals.2026.0_AA2026-20
Short paper
On the capacity for desiccation-tolerant egg production in the ostracod Heterocypris spadix
Kakui, K., Munakata, M.
22 March 2026	AA2026-21
https://doi.org/10.34394/aquaticanimals.2026.0_AA2026-21
Short paper
First record of Ericiolumnus symbioticus Ng and Rahayu, 2020 (Crustacea: Decapoda: Brachyura: Pilumnidae) from Okinawa Island, Ryukyu Islands, southwestern Japan
Maenosono, T., Saeki, T.
27 March 2026	AA2026-22
https://doi.org/10.34394/aquaticanimals.2026.0_AA2026-22
Short paper
Specimen record of Armina papillata from the tidal flat Hachi-no-higata, Hiroshima Prefecture, Japan
Tsunoda, K., Fukumoto, Y., Toyota, K.
5 April 2026	AA2026-23
https://doi.org/10.34394/aquaticanimals.2026.0_AA2026-23
Original article
Seasonal variations in fish fauna and estuarine utilization by fish in the Onosato River estuary, Osaka Prefecture, Japan
Tsuchida, K., Inoue, H., Kajimura, M., Hirashima, K.
12 April 2026	AA2026-24
https://doi.org/10.34394/aquaticanimals.2026.0_AA2026-24
Short paper
Additional records of Tachysurus nudiceps (Sauvage, 1883) (Siluriformes: Bagridae), from the Tsurumi River, Kanagawa Prefecture, Japan
Udaka, T., Yasuhara, S.
18 April 2026	AA2026-25
https://doi.org/10.34394/aquaticanimals.2026.0_AA2026-25
Original article
Distribution records of two species of the ghost shrimps genus Neocallichirus (Malacostraca: Decapoda: Callichiridae) from Honshu and/or Shikoku districts, central to western Japan, with notes on the current statuses of populations
Yamashita, R., Kyotani, S.
19 April 2026	AA2026-26
https://doi.org/10.34394/aquaticanimals.2026.0_AA2026-26
Original article
First records of Potamalpheops yamakawai Yamashita, Komai & Koreeda, 2024 from four prefectures along the Pacific coast of Japan, with notes on its habitats
Kyotani, S., Yamakawa, U., Takiyama, N., Yamashita, R.
23 April 2026	AA2026-27
https://doi.org/10.34394/aquaticanimals.2026.0_AA2026-27
Short paper
New distribution records of two water scavenger beetles (Coleoptera, Hydrophilidae) from Rebun Island, Hokkaido, Japan
Kato, A.
1 May 2026	AA2026-28
https://doi.org/10.34394/aquaticanimals.2026.0_AA2026-28
Short paper
Records of Acheilognathus cyanostigma collected from the Monobe and Watari River systems in Kochi Prefecture based on specimens deposited in the Lake Biwa Museum
Taniguchi, R., Ota, K., Kanamitsu, J., Takeyama, T.
4 May 2026	AA2026-29
https://doi.org/10.34394/aquaticanimals.2026.0_AA2026-29
Original article
Additional records of the coastal tank goby, Glossogobius laticeps (Gobiidae: Gobiinae), in East Asia, including its northernmost occurrence
Kurihara, T., Ogata, Y., Saito, H.
4 May 2026	AA2026-30
https://doi.org/10.34394/aquaticanimals.2026.0_AA2026-30
Short paper
Nucleotide sequence analysis of the entire mitochondrial DNA control region reveals very low level of genetic differentiation in Pacific saury (Cololabis saira)
Chow, S., Yanagimoto, T., Suyama, S.
9 May 2026	AA2026-31
https://doi.org/10.34394/aquaticanimals.2026.0_AA2026-31
Original article
Parturition in captivity of the viviparous surfperch Ditrema temminckii temminckii from Uwajima, Ehime Prefecture, Japan
Takagi, M., Miura, T.
13 May 2026	AA2026-32
https://doi.org/10.34394/aquaticanimals.2026.0_AA2026-32
Original article
Potential mainland source areas of the amphidromous goby Rhinogobius brunneus colonizing Hachijo-jima Island, Japan, inferred from backward particle tracking
Kunimatsu, S.
14 May 2026	AA2026-33
https://doi.org/10.34394/aquaticanimals.2026.0_AA2026-33
Original article
Fish occurrence patterns and habitat characteristics of rivers discharging into Lake Hinuma, a Ramsar‑designated brackish lake in eastern Japan
Kimura, M., Omori, K., Oguma, S., Kashiwara, S., Yamazaki, K., Kaneko, S., Morosawa, T., Kanou, K.
15 May 2026	AA2026-34
https://doi.org/10.34394/aquaticanimals.2026.0_AA2026-34
Original article
Preliminary study of the species diversity of Astrabe, Clariger, Inu and Luciogobius (Gobiidae) of the coast of Joban Region, eastern Japan
Saito, H., Ojikawa, T., Munakata, K., Nakazawa, S., Oyama, D., Wada, H.
17 May 2026	AA2026-35
https://doi.org/10.34394/aquaticanimals.2026.0_AA2026-35
Notes and News
Notes on reproductive ecology of Hemibarbus labeo (Pallas, 1776)
Hirose, Y.
21 May 2026	AA2026-36
https://doi.org/10.34394/aquaticanimals.2026.0_AA2026-36
Review
Polychelid lobsters (Crustacea, Decapoda, Polychelida)
Konishi, K., Yanagimoto, T.
23 May 2026	AA2026-37
https://doi.org/10.34394/aquaticanimals.2026.0_AA2026-37
Short paper
First record of Allodessus megacephalus (Gschwendtner, 1931) from Saitama Prefecture and the most inland location in Japan
Sato, H., Uchida, D., Iwata, Y.
28 May 2026	AA2026-38
https://doi.org/10.34394/aquaticanimals.2026.0_AA2026-38
Original article
Fourteen species of subtidal crabs (Crustacea: Decapoda) from Suruga Bay, the Pacific coast of Japanese mainland, including seven species extending the distributional range northwards to Suruga Bay
Takeda, M., Takakura, H.
4 June 2026	AA2026-39
https://doi.org/10.34394/aquaticanimals.2026.0_AA2026-39
Short paper
First record of Athelges pileus (Crustacea: Isopoda) from the Seto Inland Sea
Tsunoda, K., Toyota, K., Shinoda, H.
6 June 2026	AA2026-40
https://doi.org/10.34394/aquaticanimals.2026.0_AA2026-40
Original article
Record of Beringiana fukuharai Sano, Hattori and Kondo, 2020 in the Sagamigawa River basin
Itoh, T., Narita, M., Senzaki, M., Kakino, W.
12 June 2026	AA2026-41
https://doi.org/10.34394/aquaticanimals.2026.0_AA2026-41
Original article
First specimen-based record of Acheilognathus cyanostigma in Saba River system, Yamaguchi Prefecture, Japan
Taniguchi, R., Nitta, M., Ota, K., Hatama, T.
15 June 2026	AA2026-42
https://doi.org/10.34394/aquaticanimals.2026.0_AA2026-42
Short paper
Low-salinity tolerance in early life history stages of the porcellanid crab Petrolisthes japonicus: implications for larval dispersal strategy
Zama, K., Hamasaki, K., Dan, S.
15 June 2026	AA2026-43
https://doi.org/10.34394/aquaticanimals.2026.0_AA2026-43
Original article
Freshwater fish fauna in the alluvial fan section of the Koishiwara River before and after the heavy rainfall in July 2023: Focusing on the use of natural and artificial embayments
Onikura, N., Nakano, K., Mizutani, H., Koyama, A., Matono, N.
18 June 2026	AA2026-44
https://doi.org/10.34394/aquaticanimals.2026.0_AA2026-44
Original article
Individual larval culture method and optimal Chaetoceros concentrations for veligers of the cone snails Conus fulmen and Conus pulicarius
Suzuki, S., Ueda, Y., Ogama, F., Sanda, T., Dan, S., Hamasaki, K.
19 June 2026	AA2026-45
https://doi.org/10.34394/aquaticanimals.2026.0_AA2026-45
Original article
First record of Salmoneus aduncus Komai, 2022 (Crustacea: Decapoda: Alpheidae) collected from off Ehime Prefecture, Japan
Sato, T., Kyotani, S., Toyota, K.
20 June 2026	AA2026-46
https://doi.org/10.34394/aquaticanimals.2026.0_AA2026-46
Original article
New occurrence records of the hybrid of Sinohyriopsis cumingii (I. Lea, 1852) and Sinohyriopsis schlegelii (Martens, 1861) (Bivalvia: Unionida: Unionidae) in Okayama Prefecture, western Japan
Moriuchi, K., Fukuda, H., Ham, S-N., Azuma, T., Aoe, H., Sasada, N., Taniguchi, R., Nakata, K.
27 June 2026	AA2026-47
https://doi.org/10.34394/aquaticanimals.2026.0_AA2026-47
Original article
Effects of temperature on survival and growth of veliger larvae of the cone snails Conus fulmen and Conus pulicarius under laboratory conditions
Ueda, Y., Suzuki, S., Ogama, F., Sanda, T., Dan, S., Hamasaki, K.
29 June 2026	AA2026-48
https://doi.org/10.34394/aquaticanimals.2026.0_AA2026-48
Notes and News
External spinal deformities in aquarium-reared grass carp Ctenopharyngodon idella (Cuvier & Valenciennes, 1844) from Kerala, India: an opportunistic observation
Morris, S., Morris, S., Sarlin, P. S., Morris, S., Joseph, P.
1 July 2026	AA2026-49
https://doi.org/10.34394/aquaticanimals.2026.0_AA2026-49
Original article
Host records of the cymothoid isopod Nerocila japonica from commercial fishes: new host records and an expanded host range
Tsunoda, K., Aratani, Y., Kondo, Y.
2 July 2026	AA2026-50
https://doi.org/10.34394/aquaticanimals.2026.0_AA2026-50
Original article
Low-temperature tolerance of five cone snail species (Gastropoda: Neogastropoda: Conidae) under laboratory conditions
Ogama, F., Otani, A., Sanda, T., Dan, S., Hamasaki, K.
4 July 2026	AA2026-51
https://doi.org/10.34394/aquaticanimals.2026.0_AA2026-51