328:. In both cases, it breeds at depth, usually below around 300 metres (980 ft) in the former, and below about 250 metres (820 ft) in the latter case. It likely utilizes lipid stores to breed, instead of recently consumed food. After reproducing, the adults die; first the males, and then the females. Copepodite stages I through V develop in the surface waters (stages II through IV are found in the top 250 metres (820 ft) throughout the year in waters off Japan, for example) late during the phytoplankton bloom. Stage V copepodites enter diapause at depths of below 250 metres (820 ft) during late summer. At Station P, the number of copepodites in diapause remains about the same until September, when numbers decrease due to mortality and development into adults. This contrasts to the Strait of Georgia, where diapause is from July to January, and maturation occurs during January and February.
37:
287:, there is red-orange colouration along both of the first antennae, vertical stripes of colour along the sides of the thorax, and on the caudal rami. The II bristle is about 0.28 millimetres (0.011 in) in diameter 0.5 millimetres (0.020 in) from its base, and is over three times the length of the urosome when the former is in its entirety.
278:
deposited in females lacks any coils. In males, the ratio of cephalosome length to prosome length is usually between 0.55 and 0.56. The first antenna extends beyond the caudal rami by multiple segments. In stage V copepodites, the colouration and the second from medial caudal seta (or II bristle) can
257:
is considered a large copepod, with females generally ranging from about 4 to 6.3 millimetres (0.16 to 0.25 in) in length. The males are usually between about 4.2 and 5 millimetres (0.17 and 0.20 in) in length. Stage V copepodites usually are more than 4.3 millimetres (0.17 in) in
339:
is, as a whole, omnivorous, although there are regional variations. In the Strait of
Georgia, for example, this copepod is mainly herbivorous, whereas in the ocean, omnivory is more prevalent; this affects the composition of lipids, with oceanic samples having (likely as an adaptation to lower
521:
Miller, Charles B.; Frost, Bruce W.; Batchelder, Harold P.; Clemons, Martha J.; Conway, Richard E. (1984). "Life histories of large, grazing copepods in a subarctic ocean gyre:
821:
847:
937:
808:
834:
942:
860:
932:
325:
899:
395:
221:
was originally described by
Marukawa in 1921. It was eventually moved by Janet Bradford and John Jillett in 1974 from the genus
839:
423:, a new species of Calanidae (Copepoda: Calanoida) from the subarctic Pacific Ocean, with a comparative redescription of
782:
36:
852:
457:
Batten, Sonia D.; Welch, David W.; Jonas, Tanya (2003). "Latitudinal differences in the duration of development of
235:
198:
737:
239:
was split out of this species in 1988, where it is considered by
Charles B. Miller to have been placed as
787:
131:
904:
769:
383:
341:
193:
602:"Temporal variation in body composition and lipid storage of the overwintering, subarctic copepod
927:
891:
153:
31:
826:
641:(Crustacea: Copepoda) in the Oyashio region, with notes on regional variations in body sizes".
873:
795:
321:
774:
878:
718:
685:
650:
617:
582:
542:
470:
436:
492:
324:, it breeds between December and April, whereas it breeds between July and February at
240:
207:
921:
546:
474:
440:
275:
800:
300:
705:
Chapman, Peter M. (1981). "Evidence for dissolved glucose uptake from seawater by
303:, the northern Pacific, and off California. It is also found in the Arctic Ocean.
267:
886:
360:
203:
760:
654:
229:
108:
356:
98:
88:
68:
48:
754:
600:
Evanson, M; Bornhold, EA; Goldblatt, RH; Harrison, PJ; Lewis, AG (2000).
813:
622:
601:
586:
352:
271:
223:
189:
78:
690:
669:
637:
Kobari, T. (2001). "Ontogenetic vertical migration and life cycle of
493:"Diversity and Geographic Distribution of Marine Planktonic Copepods"
345:
58:
731:
722:
670:"Interannual variability in fatty acid composition of the copepod
565:
Conover, R. J. (1988). "Comparative life histories in the genera
865:
355:
directly from seawater from its dermal glands and midgut, which
348:
735:
491:
Razouls C.; de Bovée F.; Kouwenberg J.; Desreumaux N. (2018).
668:
El-Sabaawi, R; Dower, JF; Kainz, M; Mazumder, A (2009).
606:
in the Strait of
Georgia, British Columbia (Canada)"
744:
359:were thought to be incapable of due to their rigid
210:, until it was split in 1988 by Charles B. Miller.
486:
484:
516:
514:
512:
510:
452:
450:
573:in high latitudes of the Northern Hemisphere".
192:found in the Pacific and Arctic Oceans. It was
560:
558:
556:
8:
414:
412:
674:in the Strait of Georgia, British Columbia"
732:
20:
689:
621:
274:length ratio is generally over 0.44. The
279:be used to distinguish this species and
266:, have convex first urosomal tagma. The
377:
375:
371:
7:
382:Walter TC, Boxshall G, eds. (2023).
14:
938:Crustaceans of the Pacific Ocean
475:10.1046/j.1365-2419.2003.00233.x
396:World Register of Marine Species
35:
678:Marine Ecology Progress Series
610:Marine Ecology Progress Series
316:The timing of reproduction in
1:
943:Crustaceans described in 1921
340:concentrations of food) more
643:Journal of Plankton Research
547:10.1016/0079-6611(84)90009-0
441:10.1016/0079-6611(88)90042-0
419:Miller, Charles B. (1988). "
227:to its current placement in
711:Canadian Journal of Zoology
533:in the Northeast Pacific".
495:. Sorbonne Université, CNRS
312:Life cycle and reproduction
202:was formerly considered as
959:
392:World of Copepods database
262:, contrasting to those of
933:Fauna of the Arctic Ocean
709:(Arthropoda, Copepoda)".
159:
152:
137:
130:
32:Scientific classification
30:
23:
535:Progress in Oceanography
429:Progress in Oceanography
196:in 1921 H. by Marukawa.
171:Calanus tonsus plumchrus
655:10.1093/plankt/23.3.287
351:. It is able to uptake
258:length. The females of
463:Fisheries Oceanography
214:Taxonomy and etymology
188:is a large species of
421:Neocalanus flemingeri
16:Species of crustacean
775:Neocalanus_plumchrus
746:Neocalanus plumchrus
707:Neocalanus plumchrus
672:Neocalanus plumchrus
639:Neocalanus plumchrus
604:Neocalanus plumchrus
527:Neocalanus cristatus
523:Neocalanus plumchrus
459:Neocalanus plumchrus
425:Neocalanus plumchrus
386:Neocalanus plumchrus
342:monounsaturated fats
337:Neocalanus plumchrus
320:is variable; in the
255:Neocalanus plumchrus
219:Neocalanus plumchrus
185:Neocalanus plumchrus
141:Neocalanus plumchrus
25:Neocalanus plumchrus
623:10.3354/meps192239
587:10.1007/BF00026299
427:(Marukawa) 1921".
915:
914:
874:Open Tree of Life
738:Taxon identifiers
691:10.3354/meps07915
388:(Marukawa, 1921)"
322:Strait of Georgia
181:
180:
175:
167:
163:Calanus plumchrus
123:N. plumchrus
950:
908:
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717:(8): 1618–1621.
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531:Eucalanus bungii
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299:is found in the
295:In the Pacific,
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147:(Marukawa, 1921)
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723:10.1139/z81-223
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649:(3): 287–302.
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592:
581:(1): 127–142.
552:
541:(2): 201–243.
506:
480:
469:(3): 201–208.
461:copepodites".
446:
435:(4): 223–273.
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344:with 20 or 22
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233:. The species
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206:, likely as a
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166:Marukawa, 1921
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575:Hydrobiologia
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281:N. flemingeri
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276:spermatophore
273:
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264:N. flemingeri
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236:N. flemingeri
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199:N. flemingeri
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132:Binomial name
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497:. Retrieved
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428:
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399:. Retrieved
391:
385:
336:
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318:N. plumchrus
317:
315:
301:Sea of Japan
297:N. plumchrus
296:
294:
291:Distribution
285:N. plumchrus
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260:N. plumchrus
259:
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174:Fulton, 1968
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109:
24:
18:
887:SeaLifeBase
684:: 151–161.
616:: 239–247.
361:exoskeleton
268:cephalosome
250:Description
204:conspecific
922:Categories
571:Neocalanus
367:References
357:arthropods
270:length to
230:Neocalanus
110:Neocalanus
69:Arthropoda
928:Calanoida
326:Station P
194:described
117:Species:
99:Calanidae
89:Calanoida
55:Kingdom:
49:Eukaryota
827:11427280
761:Q6552778
755:Wikidata
154:Synonyms
95:Family:
79:Copepoda
65:Phylum:
59:Animalia
45:Domain:
814:2114959
567:Calanus
499:15 July
401:30 June
353:glucose
332:Feeding
307:Ecology
272:prosome
224:Calanus
190:copepod
105:Genus:
85:Order:
75:Class:
905:196772
879:527426
866:196772
853:119370
840:667085
529:, and
346:carbon
244:typica
900:WoRMS
892:28272
822:IRMNG
801:46C5L
788:32386
349:atoms
283:. In
861:OBIS
848:NCBI
835:ITIS
809:GBIF
783:BOLD
569:and
501:2018
403:2023
208:form
796:CoL
770:ADW
719:doi
686:doi
682:382
651:doi
618:doi
614:192
583:doi
579:167
543:doi
471:doi
437:doi
924::
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680:.
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647:23
645:.
612:.
608:.
577:.
555:^
539:13
537:.
525:,
509:^
483:^
467:12
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449:^
433:20
431:.
411:^
394:.
390:.
374:^
363:.
246:.
241:f.
725:.
721::
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688::
657:.
653::
626:.
620::
589:.
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549:.
545::
503:.
477:.
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443:.
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384:"
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