Science Monographs, No. 39, pp. 683-735, 2009
Annotated Checklist of Deep-sea Fishes from the Pacifi c Coast off Tohoku District, Japan
Gento Shinohara
1, Yoji Narimatsu
2, Tsutomu Hattori
2, Masaki Ito
2, Yohko Takata
3and Keiichi Matsuura
41 Department of Zoology, National Museum of Nature and Science, 3 23 1 Hyakunin-cho, Shinjuku-ku, Tokyo, 169 0073 Japan
E-mail: [email protected]
2 Hachinohe Station, Tohoku National Fisheries Research Institute, Fisheries Research Agency, 25 259 Shimomekurakubo, Same-machi, Hachinohe, Aomori, 031 0841 Japan
3 Center for Molecular Biodiversity Research, National Museum of Nature and Science, 3 23 1 Hyakunin-cho, Shinjuku-ku, Tokyo, 169 0073 Japan
4 Collection Center, National Museum of Nature and Science, 3 23 1 Hyakunin-cho, Shinjuku-ku, Tokyo, 169 0073 Japan
Abstract: An inventory of deep-sea fi shes from the Pacifi c side of the Tohoku District is presented on the basis of specimens collected in the years 2005 2007 and a literature survey. A total of 496 species in 118 families are listed with collection records and/or taxonomic remarks. A new Japanese name was established for Diceratias trilobus.
Key words: deep-water fi shes, fi sh fauna, distribution, Tohoku District
Introduction
The Tohoku (meaning northeast in Japanese) District is a northern part of Honshu Island, Japan. The Pacifi c side is washed by the cold Oyashio Current from the north and warm Kuro shio Current from the south, resulting in good fi shing grounds for a scomberesocid Cololabis saira, a gadid Gadus macrocephalus and several scorpaenids (e.g., Sebastolobus macrochir). These fi shes have been well investigated, as fi sheries resouces, by the Tohoku National Fisheries Research In- stitute and Aomori, Iwate, Miyagi, Fukushima and Ibaraki Experimental Stations.
Research on the deep-sea fi sh fauna of Pacifi c side of the Tohoku District began with the work of Mead and Taylor (1953) who reported 23 species including a new species from midwaters off Miyagi and Iwate prefectures. Maruyama (1970, 1971) reported a total of 106 deep-sea species from Iwate Prefecture based on specimens deposited in the Iwate Fisheries Experimental Station.
Amaoka et al. (1983) made large scaled bottom trawl surveys and documented 109 demersal spe- cies with detailed descriptions and color photographs, including 3 new species. Shinohara et al.
(1996) made a list of 178 species collected by bottom trawls carried by the Tohoku National Fish- eries Research Institute. Balanov et al. (2009) reported 142 mesopelagic deep-sea fi shes captured by midwater trawls. In addition to these studies, many new and rare species have been reported since 1996 (e.g., Kido and Shinohara, 1997; Shinohara and Matsuura, 1998; Endo and Shinohara, 1999; Sakurai and Shinohara, 2008).
In the period from 2005 to 2008, the National Museum of Nature and Science and Tohoku
National Fisheries Institute conducted trawl surveys on the Pacifi c side of Tohoku District (off
Aomori, Iwate, Miyagi, Fukushima and Ibarki prefectures) at depths of 150 2000 m using the R/V
Wakataka-maru of the Fisheries Research Agency (FRA). The specimens and literature survey
revealed that at least 496 species (327 genera) belonging to 118 families and 28 orders occur in deep-waters of below 200 m.
Comparisons of the deep-water fi sh faunas of the Tohoku District, Suruga Bay (Shinohara and Matsuura, 1997), Tosa Bay (Shinohara et al., 2001) and the Ryukyu Islands (Shinohara et al., 2005; Shinohara and Anderson, 2007) show slightly larger number of species from the Tohoku District than Suruga Bay (483 species) and fewer than Tosa Bay (599 species) and Ryukyu Islands (644 species). The Pacifi c side of theTohoku District is unique because of high number of species of the Zoarcidae (20 species vs. 2 species in Suruga Bay, 4 species in Tosa Bay and 2 species in the Ryukyu Islands), the Agonidae (12 vs. 3, 1 and 0, respectively) and the Cottidae (9 vs. and 5, 4 and 0). On the other hand, this area can be characterized by smaller number of species of the Triglidae (5 vs. 13 in Suruga Bay, 28 in Tosa Bay and 24 in the Ryukyu Islands) and the Ophidiidae (7 vs.
11, 16 and 18).
Materials and Methods
Fishes were collected by the R/V Wakataka-maru using otter trawl nets and dredges. The col- lection localities are shown in Fig. 1 and Table 1. All specimens are deposited in the National Museum of Nature and Science, Tokyo (NSMT).
Systematic arrangement of taxa follows Nelson (1994). Author(s) and year of each scientifi c name follows the Catalog of Fishes on the website of the California Academy of Sciences, USA (http://research.calacademy.org/research/Ichthyology/catalog/fi shcatsearch.html). Number of specimens is indicated in parentheses following each station number.
We examined the following literature sources for deep-sea fi shes occurring below 200 m;
Keys to the Fishes and Fish-like Animals of Japan (Okada and Matsubara, 1938); Fish Morphol- ogy and Hierarchy (Matsubara, 1955); Fishes from the North-eastern Sea of Japan and the Okhotsk Sea off Hokkaido (Amaoka et al., 1983); The Fishes of the Japanese Archipelago, 2nd edition (Masuda et al., 1988); The Fishes of Northern Japan (Amaoka et al., 1995); Fishes of Japan with Pictorial Keys to the Species, 2nd edition (Nakabo, 2000a); Sea Fishes of Japan, 3rd edition (Oka- mura and Amaoka, 2001); Fishes of Japan with Pictorial Keys to the Species, English edition (Nakabo, 2002a); Field Guide of the Fishes from the Tohoku District, North-eastern Waters of Japan (Kitagawa et al., 2008) . In addition to these major sources, revisional papers for individual taxonomic groups were examined (e.g., Okamura, 1970; Kawaguchi and Shimizu, 1978; Toyoshi- ma, 1985). In the literature survey, we recorded localities given with signifi cant accuracy (e.g., off Miyagi Prefecture, off Kinkazan) and excluded vague ones such as “northern Japan.” Our research area ranges from the Pacifi c side off Aomori Prefecture to Ibaraki Prefecture (Fig. 1) including Kashima-nada Sea.
Species List
Order Myxiniformes Family Myxinidae
Myxine garmani Jordan and Snyder, 1901 [Japanese name: Hosonutaunagi]
Myxine garmani: Funabashi, 1998; Shiogaki et al., 2004; Kitagawa et al., 2008.
WA-05-GH380D (2), WA-06-G410 (2).
Eptatretus atami (Dean, 1904) [Japanese name: Kuronutaunagi]
Paramyxine atami: Funabashi, 1998; Iwata, 2000.
Eptatretus okinoseanus (Dean, 1904) [Japanese name: Murasakinutaunagi] (Fig. 2A)
Fig. 1. Study area (shaded rectangle) and the R/V Watakata-maru sampling stations (solid circles) in the Tohoku District, Japan. A H show the yearly survey areas of the R/V Wakataka-maru.
Fig. 2. Rare fi shes collected by the R/V Wakataka-maru during 2005 2007. A, Eptatretus okinoseanus (Myxinidae), NSMT-P 77900, 83 cm total length (TL), inset shows a gill aperture and slime pores; B, Somniosus pacifi cus (Dalatiidae), NSMT-P 78207, ca. 150 cm TL; C, Gigantactis vanhoeffeni (Gigantactidae) and escal bulb, NSMT-P 79567, 31.5 cm standard length.
Station no. Position in Position out Depths (m) Date WA-05-E480 38˚22.63´N, 142˚05.28´E 38˚20.91´N, 142˚05.97´E 482 483 25 Oct. 2005 WA-05-E650 38˚22.99´N, 142˚10.65´E 38˚20.92´N, 142˚10.57´E 657 658 26 Oct. 2005
WA-05-EF450 No data 38˚02.23´N, 142˚04.86´E 454 18 Nov. 2005
WA-05-G280 36˚55.42´N, 141˚24.87´E 38˚20.93´N, 141˚24.16´E 277 279 29 Oct. 2005 WA-05-G750 36˚46.15´N, 141˚35.35´E 38˚20.95´N, 141˚34.74´E 750 750 10 Nov. 2005 WA-05-G900 36˚49.86´N, 141˚40.98´E 38˚20.96´N, 141˚40.53´E 901 901 10 Nov. 2005
WA-05-GH380D* 36˚38.97´N, 141˚14.25´E No data 378 12 Nov. 2005
WA-05-H150 36˚29.89´N, 140˚57.04´E 38˚20.94´N, 140˚58.14´E 154 156 30 Oct. 2005 WA-06-D650 39˚02.41´N, 142˚14.75´E 39˚03.56´N, 142˚14.91´E 646 663 18 Oct. 2006 WA-06-E150 38˚20.03´N, 141˚44.46´E 38˚18.24´N, 141˚44.07´E 154 151 5 Nov. 2006 WA-06-E210 38˚22.23´N, 141˚51.30´E 38˚23.99´N, 141˚51.55´E 209 212 5 Nov. 2006 WA-06-E250 38˚23.27´N, 141˚53.89´E 38˚21.62´N, 141˚54.09´E 242 244 5 Nov. 2006 WA-06-E280 38˚21.75´N, 141˚56.42´E 38˚23.59´N, 141˚56.59´E 275 275 4 Nov. 2006 WA-06-E310 38˚23.15´N, 141˚58.17´E 38˚21.48´N, 141˚58.44´E 305 309 4 Nov. 2006 WA-06-E350 38˚22.22´N, 142˚00.67´E 38˚23.99´N, 142˚00.29´E 349 350 4 Nov. 2006 WA-06-E380 38˚23.40´N, 142˚01.57´E 38˚21.94´N, 142˚02.33´E 377 382 4 Nov. 2006 WA-06-E410 38˚23.67´N, 142˚02.55´E 38˚22.14´N, 142˚03.27´E 406 409 3 Nov. 2006 WA-06-E425 38˚24.23´N, 142˚02.95´E 38˚24.92´N, 142˚02.74´E 423 423 4 Nov. 2006 WA-06-E450 38˚23.51´N, 142˚03.99´E 38˚25.24´N, 142˚03.61´E 448 451 3 Nov. 2006 WA-06-E510 38˚22.63´N, 142˚06.29´E 38˚23.89´N, 142˚05.73´E 514 506 3 Nov. 2006 WA-06-F280 37˚35.71´N, 141˚41.02´E 37˚37.51´N, 141˚40.90´E 277 284 29 Oct. 2006 WA-06-F310 37˚36.77´N, 141˚43.66´E 37˚36.08´N, 141˚43.61´E 313 309 29 Oct. 2006 WA-06-F380 37˚38.47´N, 141˚50.54´E 37˚40.07´N, 141˚50.61´E 386 379 30 Oct. 2006 WA-06-F410 37˚42.96´N, 141˚53.93´E 37˚44.58´N, 141˚53.56´E 411 411 30 Oct. 2006 WA-06-F425 37˚44.01´N, 141˚54.82´E 37˚42.28´N, 141˚55.05´E 425 424 30 Oct. 2006 WA-06-F480 37˚41.70´N, 141˚58.98´E 37˚39.88´N, 141˚59.02´E 483 478 31 Oct. 2006 WA-06-F510 37˚38.58´N, 142˚01.11´E 37˚39.78´N, 142˚01.38´E 503 511 31 Oct. 2006 WA-06-F550 37˚42.06´N, 142˚04.07´E 37˚40.91´N, 142˚04.73´E 546 551 31 Oct. 2006 WA-06-F650 37˚42.87´N, 142˚09.65´E 37˚43.98´N, 142˚09.05´E 654 651 31 Oct. 2006 WA-06-F750 37˚47.30´N, 142˚12.20´E 37˚48.09´N, 142˚11.96´E 749 747 1 Nov. 2006 WA-06-F900 37˚46.22´N, 142˚18.93´E 37˚45.73´N, 142˚19.10´E 904 909 1 Nov. 2006 WA-06-F1500 37˚36.29´N, 142˚33.59´E 37˚35.99´N, 142˚33.50´E 1515 1513 1 Nov. 2006 WA-06-FG425 37˚17.80´N, 141˚46.21´E 37˚19.53´N, 141˚46.55´E 426 425 10 Nov. 2006 WA-06-FG450 37˚18.81´N, 141˚47.19´E 37˚20.50´N, 141˚47.50´E 449 444 10 Nov. 2006 WA-06-FG510 37˚16.53´N, 141˚49.98´E 37˚17.61´N, 141˚50.23´E 511 512 10 Nov. 2006 WA-06-G310 36˚56.22´N, 141˚26.93´E 36˚54.75´N, 141˚26.52´E 301 315 26 Oct. 2006 WA-06-G380 36˚53.36´N, 141˚27.44´E 36˚54.52´N, 141˚28.91´E 384 377 27 Oct. 2006 WA-06-G410 36˚56.57´N, 141˚33.19´E 36˚58.05´N, 141˚34.42´E 414 411 27 Oct. 2006 WA-06-G425 36˚53.19´N, 141˚29.24´E 36˚52.05´N, 141˚27.59´E 428 420 27 Oct. 2006 WA-06-G480 36˚51.23´N, 141˚29.16´E 36˚50.01´N, 141˚27.74´E 481 483 28 Oct. 2006 WA-06-G510 36˚51.37´N, 141˚30.11´E 36˚52.13´N, 141˚31.16´E 508 508 28 Oct. 2006 WA-06-G650 36˚50.20´N, 141˚34.27´E 36˚50.92´N, 141˚35.18´E 648 648 28 Oct. 2006 WA-06-G900 36˚50.21´N, 141˚41.32´E 36˚49.44´N, 141˚40.73´E 907 910 11 Nov. 2006 WA-06-G1200 36˚51.80´N, 141˚47.99´E 36˚51.33´N, 141˚47.57´E 1207 1200 11 Nov. 2006 WA-06-GH280 36˚41.45´N, 141˚12.31´E 36˚39.99´N, 141˚10.98´E 278 278 17 Nov. 2006 WA-06-GH380 36˚40.37´N, 141˚15.64´E 36˚38.90´N, 141˚14.50´E 377 381 16 Nov. 2006 WA-06-H250 36˚31.39´N, 140˚59.89´E 36˚29.80´N, 140˚58.80´E 243 246 12 Nov. 2006 WA-06-H280 36˚30.79´N, 141˚00.21´E 36˚29.36´N, 140˚59.13´E 282 279 13 Nov. 2006 WA-06-H380 36˚30.10´N, 141˚01.76´E 36˚28.69´N, 141˚00.57´E 385 378 12 Nov. 2006 WA-06-H410 36˚30.94´N, 141˚03.10´E 36˚32.34´N, 141˚04.30´E 413 407 13 Nov. 2006 WA-06-H510 36˚30.28´N, 141˚04.92´E 36˚31.12´N, 141˚05.89´E 508 510 14 Nov. 2006 WA-06-H550 36˚31.77´N, 141˚08.69´E 36˚32.62´N, 141˚09.78´E 561 557 14 Nov. 2006 WA-06-H1500 36˚36.11´N, 141˚36.14´E 36˚35.88´N, 141˚36.05´E 1478 1475 15 Nov. 2006 WA-07-E150 38˚18.46´N, 141˚44.08´E 38˚20.01´N, 141˚44.53´E 150 154 23 Oct. 2007 WA-07-E210 38˚21.78´N, 141˚51.15´E 38˚23.31´N, 141˚51.39´E 207 210 23 Oct. 2007 Table 1. Trawl and dredge(*) stations of the R/V Wakataka-maru in 2005 2007.
Eptatretus okinoseanus: Funabashi, 1998.
WA-06-G510 (1).
Order Chimaeriformes Family Chimaeridae
Chimaera phantasma Jordan and Snyder, 1900 [Japanese name: Ginzame]
Chimaera phantasma: Funabashi, 1998; Kitagawa et al., 2008.
WA-07-E650 (2).
Hydrolagus barbouri (Garman, 1908) [Japanese name: Kokonohoshiginzame]
Chimaera barbouri: Okada and Matsubara, 1938.
Bathyalopex barbouri: Matsubara, 1955.
Hydrolagus barbouri: Shiogaki, 1982; Shirai, 1983; Asahida, 1992; Funabashi, 1998; Shioga- ki et al., 2004; Kitagawa et al., 2008.
WA-06-FG450 (1).
Hydrolagus purpurescens (Gilbert, 1905) [Japanese name: Murasakiginzame]
Hydrolagus purpurescens: Shirai, 1983; Nakabo, 2000b, 2002b.
Station no. Position in Position out Depths (m) Date
WA-07-E250 38˚23.16´N, 141˚53.88´E 38˚21.31´N, 141˚54.13´E 241 244 23 Oct. 2007 WA-07-E280 38˚21.53´N, 141˚56.38´E 38˚23.37´N, 141˚56.79´E 275 280 23 Oct. 2007 WA-07-E350 38˚20.39´N, 142˚01.67´E 38˚21.97´N, 142˚00.96´E 351 351 24 Oct. 2007 WA-07-E380 38˚23.48´N, 142˚01.58´E 38˚21.99´N, 142˚02.41´E 377 382 30 Oct. 2007 WA-07-E410 38˚22.13´N, 142˚03.32´E 38˚23.78´N, 142˚02.55´E 408 406 24 Oct. 2007 WA-07-E425 38˚24.21´N, 142˚02.98´E 38˚25.89´N, 142˚02.62´E 422 424 5 Nov. 2007 WA-07-E510 38˚23.82´N, 142˚05.78´E 38˚22.73´N, 142˚06.10´E 506 506 25 Oct. 2007 WA-07-E550 38˚22.71´N, 142˚07.40´E 38˚23.88´N, 142˚07.23´E 549 549 25 Oct. 2007 WA-07-E650 38˚23.16´N, 142˚10.67´E 38˚22.13´N, 142˚10.59´E 656 656 25 Oct. 2007 WA-07-E750 38˚22.24´N, 142˚13.95´E 38˚23.09´N, 142˚14.38´E 753 754 25 Oct. 2007 WA-07-E900 38˚30.03´N, 142˚21.73´E 38˚29.50´N, 142˚21.53´E 900 896 26 Oct. 2007 WA-07-E1200 38˚23.52´N, 142˚31.76´E 38˚24.05´N, 142˚31.78´E 1198 1204 26 Oct. 2007 WA-07-E1500 38˚32.20´N, 142˚48.04´E 38˚34.72´N, 142˚48.02´E 1499 1502 26 Oct. 2007 WA-07-F150 37˚35.30´N, 141˚33.25´E 37˚36.85´N, 141˚33.92´E 153 163 29 Oct. 2007 WA-07-F210 37˚36.90´N, 141˚35.85´E 37˚38.55´N, 141˚36.09´E 213 211 29 Oct. 2007 WA-07-F280 37˚35.67´N, 141˚40.99´E 37˚37.51´N, 141˚40.75´E 277 282 29 Oct. 2007 WA-07-F350 37˚37.44´N, 141˚47.36´E 37˚39.11´N, 141˚47.31´E 356 352 30 Oct. 2007 WA-07-F380 37˚38.33´N, 141˚50.53´E 37˚39.97´N, 141˚50.59´E 388 380 30 Oct. 2007 WA-07-F410 37˚42.93´N, 141˚53.94´E 37˚44.62´N, 141˚53.59´E 412 411 30 Oct. 2007 WA-07-F480 37˚40.17´N, 141˚59.00´E 37˚41.74´N, 141˚59.00´E 480 485 4 Nov. 2007 WA-07-F510 37˚38.29´N, 142˚01.09´E 37˚39.42´N, 142˚01.18´E 506 508 4 Nov. 2007 WA-07-G150 36˚59.63´N, 141˚17.40´E 37˚00.51´N, 141˚17.66´E 151 151 2 Nov. 2007 WA-07-G210 36˚57.00´N, 141˚22.68´E 36˚58.29´N, 141˚23.75´E 210 209 2 Nov. 2007 WA-07-G380 36˚53.31´N, 141˚27.37´E 36˚54.47´N, 141˚28.80´E 385 376 2 Nov. 2007 WA-07-G350 36˚56.31´N, 141˚30.90´E 36˚57.49´N, 141˚31.27´E 371 358 3 Nov. 2007 WA-07-G900 36˚49.88´N, 141˚40.96´E 36˚49.44´N, 141˚40.49´E 903 894 31 Oct. 2007 WA-07-G1200 36˚51.78´N, 141˚47.86´E 36˚51.42´N, 141˚47.57´E 1202 1202 31 Oct. 2007 WA-07-G1500 36˚51.10´N, 141˚51.14´E 36˚51.37´N, 141˚51.58´E 1514 1513 31 Oct. 2007 WA-07-H750 36˚34.13´N, 141˚21.16´E 36˚33.70´N, 141˚20.27´E 756 747 1 Nov. 2007 WA-07-H900 36˚30.91´N, 141˚21.09´E 36˚30.55´N, 141˚20.51´E 901 899 1 Nov. 2007 WA-07-H1500 36˚35.82´N, 141˚36.04´E 36˚36.14´N, 141˚35.86´E 1473 1433 1 Nov. 2007 Table 1. (Continued)