著者

鬼倉 徳雄 渡辺 勝敏

出版者

一般社団法人 日本魚類学会

雑誌

魚類学雑誌 (ISSN:00215090)

巻号頁・発行日

vol.63, no.2, pp.143-148, 2016-11-05 (Released:2018-06-01)

参考文献数

28

被引用文献数

1

著者

水町 海斗 中山 透 手良村 知功 遠藤 広光

出版者

一般社団法人 日本魚類学会

雑誌

魚類学雑誌 (ISSN:00215090)

巻号頁・発行日

pp.21-027, (Released:2022-02-08)

参考文献数

34

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The parazenid genus Cyttopsis Gill, 1862 includes two valid species, C. rosea (Lowe, 1843), known from the Atlantic and Indo-west Pacific Oceans, and C. cypho (Fowler, 1934) restricted to the eastern Indian and western Pacific Oceans. Around Japan, the former species is common, whereas the latter has not been recorded to date. However, two Cyttopsis specimens [51.6 and 71.8 mm standard length (SL)] collected from Tosa Bay and Enshu-nada, Japan in 2008 and 2019, respectively, have been identified as C. cypho. In addition to previous means of distinguishing between the two species, a faint dark lateral spot posteriorly on the body (absent in C. rosea) and fewer lateral-line scales (55–64) in C. cypho (vs 73–82), the following additional diagnostic characters were found: interspace between spines on 4th and 5th abdominal scutes very narrow (C. cypho) vs. wide (C. rosea); orbit diameter 13.6–16.6% vs. 14.7–19.1% of SL; interorbital width 5.8–6.6% vs. 5.8–8.0% of SL; snout length 21.1–27.4% vs. 17.8–23.3% of SL; and mandible length 22.6–25.6% vs. 22.1–26.9% of SL. The two specimens, representing the first Japanese records of C. cypho (for which the new standard Japanese name “Ittenkagomatodai” is proposed), extend the northern range of the species from off northern Mindanao Island, Philippines (type locality).

著者

緒方 悠輝也 大衛 亮正 一井 雄太 村瀬 敦宣

出版者

一般社団法人 日本魚類学会

雑誌

魚類学雑誌 (ISSN:00215090)

巻号頁・発行日

pp.23-011, (Released:2023-06-30)

参考文献数

15

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Four collected gobiid specimens (55.3–87.6 mm in standard length) and a single photographed and released individual, from the coast of Miyazaki Prefecture, Kyushu, southern Japan, were identified as the endemic Japanese species Siphonogobius nue Shibukawa and Iwata, 1998, characterized by a simple infraorbital canal extending below the eye, and the oculoscapular canal between pore’s A' and L' lacking other pores, except for pore D. The species has been recorded to date from the Pacific coast of Honshu, northeastern Japan (between Fukushima and Shizuoka prefectures), the present specimens representing the southernmost known record of the species. A detailed description and color photograph of the Kyushu specimens is provided.

著者

邉見 由美 渡辺 萌

出版者

一般社団法人 日本魚類学会

雑誌

魚類学雑誌 (ISSN:00215090)

巻号頁・発行日

pp.21-022, (Released:2021-08-23)

参考文献数

25

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Two specimens of Callogobius tanegashimae (20.4 and 56.8 mm in standard length), collected from a muddy bottom in Wakasa Bay (bordering Fukui and Kyoto Prefectures), represent the first records of the species from the Sea of Japan. One specimen was collected with an alpheid shrimp using a yabby pump, suggesting that the goby may utilize shrimp burrows. The specimens are described in detail and their identification confirmed by reference to sequence variations on the mitochondrial DNA COI region (595 base pairs).

著者

北村 淳一 金 銀眞 中島 淳 髙久 宏佑 諸澤 崇裕

出版者

一般社団法人 日本魚類学会

雑誌

魚類学雑誌 (ISSN:00215090)

巻号頁・発行日

vol.68, no.1, pp.23-28, 2021-04-25 (Released:2021-05-09)

参考文献数

25

被引用文献数

2

---

Habitat use of Misgurnus anguillicaudatus was surveyed at Tanushimaru, Kurume City, Fukuoka Prefecture, Kyushu Island, Japan, at winter season. The study site was composed as traditional agricultural ditches in parts of the paddy field with some parts of concrete artificial type of the canals. The spatial distribution of M. anguillicaudatus in the study area was examined in 36 square frames (1 m × 1 m) located spaced along agricultural pathway for approximately 20 m. Relationships between presence of M. anguillicaudatus and several environmental factors was analyzed using the generalized linear model (GLM). Result of the GLM analysis showed that probability of the presence of M. anguillicaudatus mainly explained by water depth and the probability increased with increasing water depth.

著者

中島 淳 鬼倉 徳雄

出版者

一般社団法人 日本魚類学会

雑誌

魚類学雑誌 (ISSN:00215090)

巻号頁・発行日

vol.56, no.2, pp.135-143, 2009 (Released:2014-03-05)

参考文献数

39

被引用文献数

2

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The natural growth and habitat selection of the green chub, Aphyocypris chinensis, an endangered species in Japan, was investigated in an agricultural waterway located in northern Kyushu Island, Japan. From April 2007 to March 2008, green chub were captured by hand net and 5 physical environmental variables measured (water temperature, water depth, water current velocity, connection to paddy field, and presence or absence of tunnel-like cover) at 10 survey sites every month. After obtaining an image of the captured fish with a digital camera, all individuals were released alive at their capture location. The standard lengths of 823 individuals were later determined from the images. Monthly changes in the standard length distribution showed that green chub had a life-span of 1 year, the spawning season occurring from mid-June to August. Multiple linear regression analysis applied to the 5 environmental variables separately in the irrigation (from June to September) and non-irrigation seasons (from October to May), showed water depth to be most significant in the former and absence of water movement in the latter. Fish occurrence patterns indicated that temporary waters were utilized as spawning sites and permanent waters for overwintering. Accordingly, continued ease of movement between temporary and permanent waters is essential for future conservation of the species.

著者

冨澤 輝樹 木島 隆 二見 邦彦 高橋 清孝 岡本 信明

出版者

一般社団法人 日本魚類学会

雑誌

魚類学雑誌 (ISSN:00215090)

巻号頁・発行日

vol.62, no.1, pp.51-57, 2015-04-25 (Released:2017-08-10)

参考文献数

28

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A genetic analysis of wild-caught tetsugyo from Yutori-numa Pond, Miyagi Prefecture, a long-finned fish of uncertain origin designated as a National Natural Monument in Japan, demonstrated that some specimens were hybrids of goldfish (Carassius auratus) and crucian carp (genus Carassius). Phylogenetic analysis of sequences from part of the D-loop region of mitochondrial and nuclear DNA of 87 Yutori-numa tetsugyo indicated that 66 belonged to the goldfish group and 21 to the Japanese crucian carp group, subsequent PCR-RFLP analysis of c-myc gene revealing three different restriction fragment digest profiles, 21 and 60 specimens possessing goldfish or Japanese crucian carp genes, respectively, and the remaining 6, both genes, indicating their hybrid origin.

著者

久保 星 福岡 太一 太田 真人 遊磨 正秀

出版者

一般社団法人 日本魚類学会

雑誌

魚類学雑誌 (ISSN:00215090)

巻号頁・発行日

pp.20-031, (Released:2021-12-30)

参考文献数

28

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Food habits of young-of-the-year (YOY) smallmouth bass (Micropterus dolomieu) were surveyed from late June to early August, 2019 in the lower Kizu River, Kyoto Prefecture, Japan, prey importance being evaluated using the Index of Relative Importance (IRI). Stomach content analyses of 83 individuals revealed that unidentified fishes (%IRI: 36.6 %) and mayflies (Baetis spp.) (%IRI: 34.6 %) were important prey items, with YOY smallmouth bass as small as 10–20 mm in standard length preying on fishes. The onset of piscivory at an early life stage, likely resulting in higher predator growth rates and lower winter mortality, may have aided the establishment of M. dolomieu in the Kizu River.

著者

中島 淳 中村 朋史 洲澤 譲

出版者

一般社団法人 日本魚類学会

雑誌

魚類学雑誌 (ISSN:00215090)

巻号頁・発行日

vol.58, no.2, pp.153-160, 2011 (Released:2014-03-07)

参考文献数

48

被引用文献数

2

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Examination of the morphological and genetic features of spined loach (Cobitis sp.) collected from the Oyodo River system, southern Kyushu Island, Japan, indicated that they represented a new taxon. The specimens were clearly distinguished from other known Japanese Cobitis species by their mitochondrial DNA sequences. In addition, the shape of the adult male lamina circularis differed to those of the C. sp. ‘yamato’ complex and C. biwae.

著者

井上 太之 鈴木 大 北野 忠 河野 裕美

出版者

一般社団法人 日本魚類学会

雑誌

魚類学雑誌 (ISSN:00215090)

巻号頁・発行日

pp.20-024, (Released:2021-02-03)

参考文献数

22

---

Compared with the other anguillid eel species native to Japan (Anguilla japonica and A. marmorata), very little is currently known about the Japanese populations of A. bicolor pacifica. Three specimens of the latter (652.4–879.1 mm total length), collected in an irrigation channel on Iriomote Island, southern Japan, were examined, and the phylogenetic and morphological characters of the species discussed. The stomach contents of two specimens included a number of frog remains.

著者

森田 健太郎 大熊 一正

出版者

一般社団法人 日本魚類学会

雑誌

魚類学雑誌 (ISSN:00215090)

巻号頁・発行日

vol.62, no.2, pp.189-195, 2015-11-05 (Released:2018-03-26)

参考文献数

63

被引用文献数

10

著者

岡本 誠 宮本 圭

出版者

一般社団法人 日本魚類学会

雑誌

魚類学雑誌 (ISSN:00215090)

巻号頁・発行日

pp.21-034, (Released:2022-02-08)

参考文献数

29

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In an on-going faunal study of deep regions of the East China Sea, using a Remotely-Operated Vehicle (ROV), a single specimen (57.4 mm in standard length: SL) of Epigonus elongatus Parin and Abramov, 1986 was collected at 410 m depth off the west coast of Okinawa Island, Japan. The species has been previously reported only from the type locality in the Farquhar Islands, Western Indian Ocean, the present report being the first of the species from waters adjacent to Japan. The new standard Japanese name “Kogeme-yasemutsu” is proposed for the species, which belongs to the E. pandionis group, and is characterized by the following combination of characters: dorsal-fin rays VII-I, 10; pectoral-fin rays 18–20; gill rakers 22 or 23; vertebrae 10 + 15; pyloric caeca 7–9; pored lateral-line scales 48–50 + 2; pungent opercular spine absent; maxillary mustache-like process absent; lingual teeth absent; a pair of ribs on last abdominal vertebra absent; tubercle on inner symphysis of lower jaw absent; orbital diameter 12.1–13.6% SL; lowerjaw length 13.4–15.1% SL; and body depth 16.4–18.5% SL. An in-situ ROV photograph of E. elongatus from Okinawa Island is provided. The genus Epigonus is represented in Japanese waters by six species including E. elongatus; Epigonus atherinoides (Gilbert, 1905); Epigonus ctenolepis Mochizuki and Shirakihara, 1983; Epigonus denticulatus Dieuzeide, 1950; Epigonus fragilis (Jordan and Jordan, 1922); and Epigonus pectinifer Mayer, 1974.

著者

松沼 瑞樹 本村 浩之

出版者

一般社団法人 日本魚類学会

雑誌

魚類学雑誌 (ISSN:00215090)

巻号頁・発行日

pp.23-016, (Released:2023-07-21)

参考文献数

14

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Two species of lefteye flounder (Bothidae), Engyprosopon mozambiquense Hensley, 2003 and Engyprosopon parvipectorale Amaoka and Ho, 2018, are newly recorded from Japan based on five specimens (one male and four females) and a single male specimen, respectively, from Nakagusuku Bay, Okinawa Island, Ryukyu Islands. The two species resemble each other in sharing the following combination of characters: extremely narrow interorbital space; large mouth (posterior margin of ocular side upper jaw extending beyond anterior margin of lower eye); inner margin of gill rakers with serrae; and a pair of dark blotches on caudal fin absent. However, the present male specimen of E. mozambiquense differed from male specimens of E. parvipectorale from Taiwan and Japan in having a greater interorbital width, 11.5 in head length (vs. 23.1–67.7 in male E. parvipectorale), a rostral spine on the ocular side of the snout (vs. absent), and three dark blotches on the ventral surface of the ocular side lower jaw (vs. uniformly black). The present female specimens of E. mozambiquense were characterized by having small teeth on both jaws (vs. anterior teeth on the upper jaw, and all teeth on the lower jaw large and canine-like in both male and female E. parvipectorale). The two species are also similar to the Japanese endemic congener, Engyprosopon kushimotoense Amaoka, Kaga and Misaki, 2008 (known only from the male holotype from Wakayama Prefecture), and Engyprosopon longipelvis Amaoka, 1969 (known from southern Japan) in having gill rakers with serrae and a narrow interorbital space. However, E. kushimotoense and E. longipelvis differ from the former in having 43 and 37–42 lateral-line scales, respectively (vs. 49–52 in E. parvipectorale and 46–52 in E. mozambiquense). The new standard Japanese names “Yorime-darumagarei” and “Kiba-yorime-darumagarei” are proposed here for E. mozambiquense and E. parvipectorale, respectively.

著者

三澤 遼 鈴木 勇人 甲斐 嘉晃

出版者

一般社団法人 日本魚類学会

雑誌

魚類学雑誌 (ISSN:00215090)

巻号頁・発行日

pp.21-036, (Released:2022-02-08)

参考文献数

20

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The rarely collected ceratioid anglerfish family Caulophrynidae, including the genera Caulophryne Goode and Bean, 1896 and Robia Pietsch, 1979, is widely distributed from the surface to the bathypelagic zone in the Pacific, Atlantic and Indian oceans. Valid Caulophryne species, characterized by the absence of an expanded escal bulb, presence of only 2 pectoral radials, extremely long dorsal- and anal-fin rays, 8 caudal-fin rays, neuromasts of the acoustic-lateralis system located at the tips of elongate filaments, an illicial length less than 130% of standard length (SL), 14–22 dorsal-fin rays, and 12–19 anal-fin rays, include Caulophryne jordani Goode and Bean, 1896 and Caulophryne pelagica (Brauer, 1902) from all three oceans, Caulophryne polynema Regan, 1930 from the Atlantic and eastern Pacific, and Caulophryne bacescui Mihai-Bardan, 1982 from the eastern Pacific. A single female specimen of C. polynema, collected over a bottom depth of 658–663 m off Iwate Pref., Pacific coast of northern Japan, on 9 October 2020, was distinguished from other congeners by the following combination of characters: illicium length 17.3% SL, with about 50 translucent filaments along its entirety; 19 dorsal- and 17 anal-fin rays. In addition, a parasitic male with degenerated dorsal, anal and pectoral fins, and eyes was found on the specimen. The specimen represents the first record of Caulophryne polynema from the western North Pacific, including Japanese waters, and northernmost record of the species in the Pacific Ocean. The new standard Japanese name “Fusafusa-hirenaga-chochin-anko” is proposed for the species.

著者

下光 利明 柳本 卓 岡本 誠

出版者

一般社団法人 日本魚類学会

雑誌

魚類学雑誌 (ISSN:00215090)

巻号頁・発行日

pp.20-039, (Released:2021-02-26)

参考文献数

29

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A single yellowtail specimen (514.0 mm standard length), collected in the open ocean of the central North Pacific (31˚38.3'N, 163˚24.5'W), was identified as Seriola aureovittata Temminck and Schlegel, 1845, following morphological observations and genetic analysis. Commonly believed to be distributed in coastal areas off East Asia, the species may occupy a wide range of habitat in the western and central North Pacific (supported also by previous fisheries records). Seriola dorsalis (Gill, 1863), a very similar congener, is distributed in the eastern North Pacific, the two species being considered separated by the East Pacific Barrier.

著者

明仁 藍澤 正宏 池田 祐二 岸田 宗範 林 公義 中山 耕至 中坊 徹次

出版者

一般社団法人 日本魚類学会

雑誌

魚類学雑誌 (ISSN:00215090)

巻号頁・発行日

vol.66, no.1, pp.53-62, 2019-04-25 (Released:2019-04-25)

参考文献数

32

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Hybrids of Rhinogobius biwaensis and Rhinogobius sp. BF were identified in the ponds of Sento Imperial Palace, Kyoto City, Japan, from microsatellite and mitochondrial DNA markers. Mitochondrial DNA analysis indicated that five of seven Rhinogobius specimens had R. biwaensis haplotypes, the remaining specimens having those of Rhinogobius sp. BF. In DAPC and STRUCTURE analyses based on microsatellite data, all specimens examined showed intermediate status between R. biwaensis and Rhinogobius sp. BF, the two species being considered to have formed a hybrid swarm in the ponds because genetically pure individuals of either were not found. This is the first report of recent hybridization under field conditions in Rhinogobius fishes from Japan, confirmed by nuclear and mitochondrial DNA data. Hybrid Rhinogobius specimens from the ponds had 5–17 predorsal scales, an intermediate range between those of non-hybrid R. biwaensis (0–6) and Rhinogobius sp. BF (11–20). However, in appearance they were more similar to R. biwaensis than Rhinogobius sp. BF, having bluish-white distal coloring anteriorly on the first and second dorsal fins, a reduced reddish longitudinal band on the anal fin, and lacking yellowish dorsal and posterior margins on the caudal fin. However, they differed from R. biwaensis in having a narrower white posterior caudal fin margin. Further morphological differentiation of the hybrid specimens was not apparent.

著者

三澤 遼 木村 克也 水町 海斗 服部 努 成松 庸二 鈴木 勇人 森川 英祐 時岡 駿 永尾 次郎 柴田 泰宙 遠藤 広光 田城 文人 甲斐 嘉晃

出版者

一般社団法人 日本魚類学会

雑誌

魚類学雑誌 (ISSN:00215090)

巻号頁・発行日

pp.20-023, (Released:2020-10-02)

参考文献数

192

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New distributional records of forty-five fish species off the Pacific coast of Tohoku District, northern Japan are reported, based on specimens trawled by the R/V Wakataka-maru (Japan Fisheries Research and Education Agency) during surveys in autumn of each year from 1995 to 2019. The records include northern distribution range extensions of 19 species, distribution gaps filled for 17 species, and northern and southern limits along the Pacific coast of Japan for eight and one species, respectively. Twenty-seven species were recorded off Tohoku District for the first time. In addition, taxonomic notes for each species, including some meristic and morphometric data from the collected specimens, are also provided.

著者

三澤 遼 鈴木 勇人 甲斐 嘉晃

出版者

一般社団法人 日本魚類学会

雑誌

魚類学雑誌 (ISSN:00215090)

巻号頁・発行日

pp.23-006, (Released:2023-07-10)

参考文献数

28

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The ceratoid anglerfish genus Dolopichthys Garman, 1899, distributed in the bathypelagic zone of all three major oceans, is characterized by the following combination of characters: females with well-developed sphenotic spines; body relatively long and slender, not globular; pectoral-fin lobe short, shorter than the longest pectoral-fin rays; skin naked and entirely smooth; lower jaw with a well-developed symphysial spine; pterygiophore emerging on the snout from between the frontal bones; caudal peduncle depth less than 20% of standard length (SL); quadrate spine well developed; frontal bones long and straight; hyomandibula with a double head. The genus includes seven valid species, Dolopichthys allector Garman, 1899, Dolopichthys danae Regan, 1926, Dolopichthys longicornis Parr, 1927, Dolopichthys jubatus Regan and Trewavas, 1932, Dolopichthys pullatus Regan and Trewavas, 1932, Dolopichthys dinema Pietsch, 1972, and Dolopichthys karsteni Leipertz and Pietsch, 1987, with only D. longicornis being known from Japanese waters to date. A single female specimen (88.6 mm SL) of the rare species D. danae, was collected at a bottom depth of 902–917 m off Iwate Pref., Pacific coast of northern Japan, on 12 October 2022. The specimen was distinguished from other congeners by a longer illicium (length 70% SL), dorsal midline of the escal bulb with two darkly pigmented, distally bifurcating papillae, vomer without teeth, and lower jaw with ca. 150 teeth. Dolopichthys danae was previously known from six specimens only, all from the North Atlantic (south of 40˚N), the present specimen therefore representing the seventhknown specimen and first record of the species from the Indo-Pacific, including Japanese waters. The new standard Japanese name “Enaga-mimizuku-rakuda-anko” is proposed for the species.

著者

和田 英敏 瀬能 宏 星野 修

出版者

一般社団法人 日本魚類学会

雑誌

魚類学雑誌 (ISSN:00215090)

巻号頁・発行日

pp.21-030, (Released:2021-12-02)

参考文献数

40

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During an ichthyofaunal survey of Sagami Bay (Japan) and surrounding waters, a single hawkfish specimen (55.7 mm standard length: SL) was collected from Izu-oshima Island, Izu Islands by handnet at a depth of 35 m on 7 December 2011. The specimen was subsequently identified as Cirrhitichthys guichenoti (Sauvage, 1880), having the following combination of characters: dorsal-fin rays X, 13; anal-fin rays III, 7; pectoral-fin rays 16, uppermost and lower six rays unbranched; lateral-line scales 52; horizontal scale rows between base of middle dorsal-fin spinous portion and lateral line 4; gill rakers 5 + 12; greatest body depth 31.1% of SL; snout length 35.6% of head length; enlarged canine teeth on front of upper jaw and central part of lower jaw; and lateral surface of body white with large brownish-red blotches when fresh. This species has been previously recorded from Indonesia, Mauritius, Réunion, Madagascar, Comoros and South Africa, the present specimen from Izu-oshima Island representing the first specimen-based record from the northern hemisphere and northernmost record for the species. Seventeen underwater observations (photographic and visual) from 8 November 2011 to 25 May 2021 of juvenile and adult (ca. 35–100 mm in total length) C. guichenoti, documented from Izu Peninsula, Izu-oshima Island, and Chichi-jima Islands, Ogasawara Islands, and encompassing both the coldest and hottest seasons, suggest that the population is established and reproducing in Japanese waters. The new standard Japanese name “Kiringombe” is proposed for the species, based on the present specimen.

著者

畑 瑛之郎 金井 聖弥 本村 浩之

出版者

一般社団法人 日本魚類学会

雑誌

魚類学雑誌 (ISSN:00215090)

巻号頁・発行日

pp.23-026, (Released:2024-01-10)

参考文献数

29

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A single specimen (636.0 mm disc width) of the Pink Whipray Pateobatis fai (Jordan and Seale, 1906) (Dasyatidae) was collected off the south coast of the Satsuma Peninsula, Kagoshima Prefecture, Kyushu, Japan. Although the tail had been removed after capture, the specimen was subsequently identified based on disc morphology and molecular analysis. In Japanese waters, the species has previously been recorded only from Chichi Island (Ogasawara Islands), Okinawa Island (Okinawa Islands), and Iriomote Island (Yaeyama Islands), The present specimen, described here in detail, therefore representing the first record of P. fai from the Japanese mainland, and the northernmost record for the species.