Improving taxonomic classification of marine zooplankton by molecular approach: registration of taxonomically verified 18S and 28S rRNA gene sequences

Authors: Tsuyoshi Watanabe, Junya Hirai, Sirje Sildever, Kazuaki Tadokoro, Kiyotaka Hidaka, Iwao Tanita, Koh Nishiuchi, Naoki Iguchi, Hiromi Kasai, Noriko Nishi, Seiji Katakura, Yukiko Taniuchi, Taketoshi Kodama, Satokuni Tashiro, Misato Nakae, Yuji Okazaki, Satoshi Kitajima, Sayaka Sogawa, Toru Hasegawa, Tomonori Azumaya, Yutaka Hiroe, Daisuke Ambe, Takashi Setou, Daiki Ito, Akira Kusaka, Takeshi Okunishi, Takahiro Tanaka, Akira Kuwata, Daisuke Hasegawa, Shigeho Kakehi, Yugo Shimizu, Satoshi Nagai

Source: PeerJ, Vol 11, p e15427 (2023)

Subject Terms: Japan, Marine biology, Metabarcoding, Pacific Ocean, Plankton, Species identification, Medicine, Biology (General), QH301-705.5

File Description: electronic resource

Relation: https://peerj.com/articles/15427.pdf; https://peerj.com/articles/15427/; https://doaj.org/toc/2167-8359

Access URL: https://doaj.org/article/b6fb859dde474a60b4fd7d2a77c3547f

Temporal and regional variabilities in the attenuation of sinking particulate organic carbon in the Kuroshio region

Authors: Hideki Fukuda, Kiyotaka Hidaka, Takashi Setou, Akira Kusaka, Daisuke Ambe, Hiroaki Saito

Source: Frontiers in Marine Science, Vol 9 (2022)

Subject Terms: ocean carbon cycling, biological pump, sinking POC flux, sediment trap, slope of particle size distribution, Kuroshio, Science, General. Including nature conservation, geographical distribution, QH1-199.5

File Description: electronic resource

Relation: https://www.frontiersin.org/articles/10.3389/fmars.2022.875362/full; https://doaj.org/toc/2296-7745

Access URL: https://doaj.org/article/77d2d89d6c2e4613bb2173570eb4699b

Evaluation of metagenetic community analysis of planktonic copepods using Illumina MiSeq: Comparisons with morphological classification and metagenetic analysis using Roche 454.

Authors: Junya Hirai, Satoshi Nagai, Kiyotaka Hidaka

Source: PLoS ONE, Vol 12, Iss 7, p e0181452 (2017)

Subject Terms: Medicine, Science

File Description: electronic resource

Relation: https://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0181452&type=printable; https://doaj.org/toc/1932-6203

Access URL: https://doaj.org/article/ae3653fc75234e439f69feda22872b36

Empirical prediction model for egg production rate of a planktonic copepod, Calanus sinicus, estimated from reproductive index using formalin-preserved samples in Sagami Bay, Japan.

Authors: Shinji Shimode, Takafumi Yamaguchi, Kiyotaka Hidaka

Source: Plankton & Benthos Research; 2022, Vol. 17 Issue 3, p301-311, 11p

Subject Terms: CALANUS, PREDICTION models, WATER temperature, CONTINENTAL shelf, TEMPERATURE effect

Geographic Terms: JAPAN

Paracalanus orientalis n. sp. (Copepoda, Calanoida), formerly referred to as P. parvus in Japanese coastal waters.

Authors: HIROSHI UEDA, HIROSHI ITOH, JUNYA HIRAI, KIYOTAKA HIDAKA

Source: Plankton & Benthos Research; 2022, Vol. 17 Issue 2, p221-230, 10p

Spatial and Seasonal Variations of Stable Isotope Ratios of Particulate Organic Carbon and Nitrogen in the Surface Water of the Kuroshio.

Authors: Taketoshi Kodama¹ takekodama@affrc.go.jp, Atsushi Nishimoto², Sachiko Horii³, Daiki Ito¹, Tamaha Yamaguchi¹, Kiyotaka Hidaka¹, Takashi Setou¹, Tsuneo Ono¹

Source: Journal of Geophysical Research. Oceans. Apr2021, Vol. 126 Issue 4, p1-20. 20p.

Subject Terms: *Particulate matter, *Marine pollution, *Carbon content of seawater, Stable isotopes, Nitrogen content of sewage, Kuroshio

Possible aplanochytrid (Labyrinthulea) prey detected using 18S metagenetic diet analysis in the key copepod species Calanus sinicus in the coastal waters of the subtropical western North Pacific.

Authors: JUNYA HIRAI, YOKO HAMAMOTO, DAISKE HONDA, KIYOTAKA HIDAKA

Source: Plankton & Benthos Research; 2018, Vol. 13 Issue 2, p75-82, 8p

Subject Terms: PROTISTA, PREDATION, CALANUS, TERRITORIAL waters

Geographic Terms: NORTH Pacific Ocean

Spatio-temporal structure of the jellyfish community in the transition zone of cold and warm currents in the northwest Pacific.

Authors: HIROXI MORITA, MASAYA TOYOKAWA, KIYOTAKA HIDAKA, ATSUSHI NISHIMOTO, HIROYA SUGISAKI, TOMOHIKO KIKUCHI

Source: Plankton & Benthos Research; 2017, Vol. 12 Issue 4, p266-284, 19p

Subject Terms: SCYPHOZOA, MARINE species diversity, MARINE biomass, MARINE biodiversity, MARINE plankton

Occurrence of the Paracalanus parvus species complex in offshore waters south of Japan and their genetic and morphological identification to species.

Authors: KIYOTAKA HIDAKA¹ khidaka@affrc.go.jp, HIROSHI ITOH², JUNYA HIRAI¹, ATSUSHI TSUDA³

Source: Plankton & Benthos Research. 2016, Vol. 11 Issue 4, p131-143. 13p.

Subject Terms: *COPEPODA, *GENETICS, *SPECIES, *WATER, KUROSHIO

Geographic Terms: JAPAN

Sapphirinid copepods as predators of doliolids: Their role in doliolid mortality and sinking flux.

Authors: Kazutaka Takahashi, Tadafumi Ichikawa, Hiroaki Saito, Shigeho Kakehi, Yasunori Sugimoto, Kiyotaka Hidaka, Koji Hamasaki

Source: Limnology & Oceanography; Nov2013, Vol. 58 Issue 6, p1972-1984, 13p