研究者詳細 - 中田　和義

都市の水環境に定着した外来ザリガニが在来生態系に及ぼす影響

河川での野外実験によるモクズガニの隠れ家に関する選好性の評価査読

米澤孝康, 齋藤稔, 山城考, 浜野龍夫, 中田和義

応用生態工学 19 ( 1 ) 1 - 11 2016年

虹色素胞による青い光沢を有するメダカの体色変異体査読

塩出雄亮, 中田和義

日本水産学会誌 82 ( 4 ) 628 - 630 2016年

中田和義

用水と廃水 57 ( 7 ) 519 - 524 2015年

Validity of movie recording for quantitative abundance estimation and body size measurement of Macrobrachium shrimps 査読

M. Saito, T. Hamano, K. Nakata

Crustacean Research 44 39 - 53 2015年

記述言語：英語出版者・発行元：日本甲殻類学会

Collecting Macrobrachium shrimps for abundance estimation is challenging, especially in high gradient, boulder dominated streams. The recent advent of digital cameras could change the situation by enabling previously under-used snorkel counting to yield verifiable data. The validity and efficiency of underwater movie recording for shrimp census were tested and compared with those of underwater shrimp net collection and sweeping in a field experiment (1–4 adult shrimps/m²). Total length estimates from the video footage were compared with caliper measurements. Detection was not affected by species, sex, or shrimp density. Movie recording and shrimp net collection yielded high and constant detection probability of adult shrimps (0.955 and 0.874), in contrast to sweeping (0.097). The movie recording had higher efficiency than the other two methods. For juveniles, only shrimp net collection was valid as an abundance indicator, with a detection probability of 0.338. Accuracy of total length estimates made from the video footage did not differ between species or sex and was highly correlated with the actual measurements by digital caliper. These results confirm that in adult Macrobrachium shrimps, the movie recording is valid for body size and quantitative abundance estimation, but not in juveniles.

DOI： 10.18353/crustacea.44.0_39

外来種アメリカザリガニの駆除に用いる人工巣穴サイズ査読

その他リンク： https://jlc.jst.go.jp/DN/JLC/20017078595?from=CiNii

好適なサイズの人工巣穴を用いた外来種アメリカザリガニの駆除効果査読

牛見悠奈, 白石理佳, 中田和義

応用生態工学 18 ( 2 ) 139 - 145 2015年

牛見悠奈, 宮武優太, 筒井直昭, 坂本竜哉, 中田和義

応用生態工学 18 ( 2 ) 79 - 86 2015年

担当区分：責任著者記述言語：日本語出版者・発行元：応用生態工学会

北米産外来種のアメリカザリガニは，在来生物の捕食などを通じて，在来生態系に深刻な影響を及ぼしている。また，本種が掘る巣穴が水田漏水の原因になるなど水田管理上の問題も引き起こしている。このため，本種は緊急対策外来種と日本の侵略的外来種ワースト 100 に指定され，効率的な駆除手法の開発が求められている。そこで本研究では，水田水域や河川・湖沼等に定着したアメリカザリガニの駆除に用いる人工巣穴の適したサイズを明らかにすることを目的として，本種による人工巣穴サイズ選好性実験を実施した。灰色の直管型の塩ビ管を人工巣穴とし，内径と長さの異なる人工巣穴をアメリカザリガニに室内水槽内で選択させた。その結果，人工巣穴の内径については，全長（X, mm）と好んで選択された内径（Y, mm）の間に Y＝0.58X＋4.26 という有意な回帰式が得られた。人工巣穴の長さについては，全長の 4 倍の長さの巣穴が好んで選択された。以上の結果をもとに，アメリカザリガニの駆除に用いる体サイズ別の人工巣穴サイズを提案した。

DOI： 10.3825/ece.18.79

1872年に北海道阿寒湖で採集されたニホンザリガニ標本と出現したヒルミミズ類：八田三郎標本の観察査読

外来種アメリカザリガニの駆除に用いる篭と使用餌査読

白石理佳, 牛見悠奈, 中田和義

応用生態工学 18 ( 2 ) 115 - 125 2015年

中田和義, 永野優季, 大橋慎平, 河合俊郎, 大高明史

日本ベントス学会誌 69 ( 2 ) 90 - 94 2014年

担当区分：筆頭著者,　責任著者記述言語：英語出版者・発行元：日本ベントス学会

In Lake Akan, Hokkaido, northern Japan, the local population of the native and endangered Japanese crayfish Cambaroides japonicus (De Haan, 1841) is extinct, whereas the signal crayfish Pacifastacus leniusculus (Dana, 1852), an invasive species from North America, has become established and rapidly increased. This study provides information about specimens of C. japonicus preserved by Dr. Saburo Hatta from the lake in 1872. The six specimens (two males and four non-ovigerous females) are valuable evidence of C. japonicus formerly inhabiting Lake Akan. The body sizes of the specimens were 24.4–29.5 mm in carapace length and 55.7–67.4 mm in total length, and the estimated age of the largest specimen was ten years, indicating that Lake Akan of that time provided a suitable habitat. Twenty-two ectosymbiotic crayfish worms (Annelida, Clitellata, Branchiobdellida) were found attached to the specimens. Three branchiobdellidan species were identified: Cirrodrilus cirratus Pierantoni, 1905, C. inukaii (Yamaguchi, 1934) and C. megalodentatus (Yamaguchi, 1934). This is the first record of the latter two species from Lake Akan.

DOI： 10.5179/benthos.69.90

Factors affecting distribution of freshwater shrimps and prawns in the Hiwasa River, southern central Japan 査読

その他リンク： https://jlc.jst.go.jp/DN/JLC/20006922885?from=CiNii

M. Saito, T. Yamashiro, T. Hamano, K. Nakata

Crustacean Research 41 27 - 46 2012年

Effect of pH and water temperature on the development of the Japanese crayfish, Cambaroides japonicus eggs in vitro 査読

H. Matsubara, A. Chiba, Y. Horie, D. Iwata, M. Shimizu, T. Kinoshita, K. Nakata

New Frontiers in Crustacean Biology, Crustaceana Monographs 15 235 - 240 2011年

長野県安曇野市に生息する特定外来生物ウチダザリガニの生息地の環境とその由来査読

熊川真二, 中田和義, 川井唯史

日本ベントス学会誌 66 ( 1 ) 26 - 32 2011年

記述言語：日本語掲載種別：研究論文（学術雑誌）出版者・発行元：JAPANESE ASSOCIATION OF BENTHOLOGY

Official documents and archives suggest that the alien crayfish Pacifastacus leniusculus (Dana, 1852) was introduced into Japan from North America on five occasions from 1926 to 1930, and populations have survived in Hokkaido, Nagano, and Shiga Prefectures. The chemical conditions and biological environment of an established habitat near their original a release point in Akashina, Azumino City, Nagano Prefecture, were surveyed on four occasions in 1998 and 1999. Water quality (pH, DO, BOD) and WT were recorded seasonally at each of eight stations, and crayfish and other aquatic macro-organisms were collected. Some predatory fishes (Oncorhynchus mykiss, Anguilla japonica, and Lepomis macrochirus) that might actively eat juveniles of P. leniusculus were recorded. Individual density of P. leniusculus was relatively low compared to its other habitats in Japan. Only 52 crayfish were collected during this study, on 19 of 32 sampling occasions (eight sites, four times each). The shape of the acumen and the species composition of ectosymbiotic crayfish worms (Annelida: Clitellata: Branchiobdellidae) can be used as tools to trace the origin of introduced of P. leniusculus in Japan. The present crayfish from Nagano Prefecture have a relatively short acumen, different from those of specimens from Shiga and Hokkaido Prefectures. Furthermore, the crayfish worm Xironogiton victoriensis occurs only on crayfish from Akashina, Nagano Prefecture. The dates of introduction of P. leniusculus in Nagano (1926, 1929) also differ from those for Hokkaido (1930) and Shiga Prefecture (1926). These findings suggest that the regional population of P. leniusculus in Nagano has a different origin than those in Shiga and Hokkaido, having originated from crayfish that were introduced independently from North America.

DOI： 10.5179/benthos.66.26

その他リンク： https://jlc.jst.go.jp/DN/JALC/00381242488?from=CiNii

EFFECTS OF HABITAT FRAGMENTATION ON THE AMPHIDROMOUS FRESHWATER SHRIMP, CARIDINA LEUCOSTICTA (DECAPODA, ATYIDAE) IN A RICE PADDY DRAINAGE CHANNEL 査読

Kazuyoshi Nakata, Kunihiko Amano, Masatoshi Denda, Junji Miwa, Tatsuo Hamano

CRUSTACEANA 83 ( 9 ) 1125 - 1133 2010年9月

担当区分：筆頭著者,　責任著者記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：BRILL ACADEMIC PUBLISHERS

Agricultural channels can be important habitats for aquatic species inhabiting agricultural areas. However, water supply in agricultural channels can vary substantially with types of agriculture and irrigation/drainage system, and thereby affect the viability of local populations of aquatic species. In this study, we focused on the amphidromous freshwater atyid shrimp Caridina leucosticta. To clarify whether C. leucosticta utilizes agricultural channels as a habitat in relation to fluctuations in the water supply, we conducted a series of field surveys on the distribution of this shrimp in a rice paddy drainage channel (spring-fed channel) around the Furu River, central Japan, during July and December 2008. Large numbers of C. leucosticta had migrated into that drainage channel. Water from the adjacent rice paddies had disappeared by October, because irrigation was stopped, but the water level in the drainage channel was maintained by a supply of spring water. By mid-November the supply of spring water had almost disappeared, then the channel nearly dried up, and many shrimps were concentrated in an isolated water pool in the channel. Thus, habitat fragmentation of C. leucosticta occurred in terms of water (dis-)continuity. This water pool dried up completely by mid-December. We found many dead individuals of C. leucosticta in the dried-up area of the channel. These rest Its indicate that agricultural channels can be an important temporal habitat for amphidromous freshwater shrimps, but that the drying-up of the channels can lethally affect migrating atyid shrimps.

DOI： 10.1163/001121610X521190

Web of Science

First record of the North American invasive crayfish Pacifastacus leniusculus from the Kanto region, Tone River basin, central Japan: A range expansion to a warm water area 査読国際誌

Kazuyoshi Nakata, Norio Hayashi, Masumi Ozaki, Akifumi Ohtaka, Junji Miwa

Plankton and Benthos Research 5 ( 4 ) 165 - 168 2010年

担当区分：筆頭著者,　責任著者記述言語：英語掲載種別：研究論文（学術雑誌）

The North American invasive signal crayfish Pacifastacus leniusculus was designated as an 'Invasive Alien Species' by the Ministry of the Environment of Japan and by the Ministry of Agriculture, Forestry and Fisheries of Japan on 1 February 2006. We report the first record of P. leniusculus from the Kanto region (Chiba Prefecture), central Japan. Adult specimens of P. leniusculus were collected from the Tone River basin between September 2009 and January 2010. Ectosymbiotic crayfish worms (Annelida, Clitellata, Branchiobdellidae) were found on the crayfish and all specimens were identified as Sathodrilus attenuatus, which outside of its home range in North America occurs only in the Hokkaido and Fukushima Prefecture populations of P. leniusculus
thus suggesting that P. leniusculus in the Tone River basin was introduced from Hokkaido or Fukushima Prefecture. Signal crayfish is considered a cool water species and has been reported mostly in Hokkaido, northern Japan, but our findings strongly indicate that P. leniusculus has become established in a warm water area in central Japan, where the maximum water temperature is above 30°C in summer. These results indicate that P. leniusculus can inhabit warm water areas as well as cool areas and would be able to extend its distribution over a wide range in Japan. © The Japanese Association of Benthology.

DOI： 10.3800/pbr.5.165

Scopus

河川−農業水路ネットワークにおける両側回遊型甲殻類の個体群存続可能性評価手法の開発査読

中田和義, 傳田正利, 三輪準二, 天野邦彦, 浜野龍夫

河川技術論文集 16 465 - 470 2010年

環境整備目標設定のための過去・現在の水域生息空間ネットワークの比較査読

傳田正利, 天野邦彦, 中田和義

河川技術論文集 15 25 - 30 2009年

両側回遊型甲殻類の生態に着目した生息空間連続性評価手法の開発査読

中田和義, 中西哲, 傳田正利, 天野邦彦, 小林草平, 藤原正季, 浜野龍夫

河川技術論文集 15 31 - 36 2009年

Factors affecting the interval between clutches in the hermit crab Pagurus nigrivittatus 査読国際誌

Satoshi Wada, Takashi Oba, Kazuyoshi Nakata, Atsushi Ito

MARINE BIOLOGY 154 ( 3 ) 501 - 507 2008年5月

記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：SPRINGER HEIDELBERG

Interval between reproductive events is an important factor for iteroparous animals because it determines the number of clutches throughout life. This study examined whether female size, clutch size, shell size and prenuptial molting affected the clutch interval in the hermit crab Pagurus nigrivittatus. Precopulatory guarding pairs of P. nigrivittatus were sampled in the field and kept in the laboratory until the female extruded eggs. The clutch interval of each female was assessed as one of two types of relatively "short" and "long" intervals by checking whether the guarded female had eggs and/or egg cases from the preceding brood or not when the guarding pair was collected. The clutch interval was longer in females with prenuptial molting than those without molting and these females usually grew larger at the prenuptial molt. This suggests that female P. nigrivittatus with a long interval might allocate energy into growth at the expense of the number of clutches during the current reproductive season. The allocation to growth is theoretically predicted to decrease with female size. Gastropod shell size is also known to affect the reproductive activity in hermit crabs. However, female size did not significantly affect the clutch interval in P. nigrivittatus, and the effect of gastropod shell size on clutch interval was not consistent with previous empirical studies. These results may be caused by differences in the gastropod species of shell occupied by the females of P. nigrivittatus.

DOI： 10.1007/s00227-008-0944-9

Web of Science