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Comparison of phytoplankton macromolecular compositions and zooplankton proximate compositions in the northern Chukchi Sea

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Title
Comparison of phytoplankton macromolecular compositions and zooplankton proximate compositions in the northern Chukchi Sea
Authors
Yun, Mi Sun
Lee, Sang Heon
Chung, Kyung Ho
Park, Wongyu
Yang, Eun Jin
Lee, Jang Han
강재정
Kim, Bo Kyung
Lee, Doo Byoul
Keywords
Arctic; Macromolecular composition; Mesozooplankton; Phytoplankton; Proximateanalysis
Issue Date
2015
Citation
Yun, Mi Sun, et al. 2015. "Comparison of phytoplankton macromolecular compositions and zooplankton proximate compositions in the northern Chukchi Sea". DEEP-SEA RESEARCH PART II-TOPICAL STUDIES IN OCEANOGRAPHY, 120(1): 82-90.
Abstract
The macromolecular(proteins,lipids,andcarbohydrates)compositionofphytoplanktonandtheproxi- mate (water,proteins,lipids,andash)andelemental(carbonandnitrogen)compositionsofmesozoo- plankton weredeterminedinthenorthernChukchiSeatoestablishtherelationshipbetween zooplankton andtheirphytoplanktonfoodsource.Amongthephytoplanktonmacromoleculesexamined in thisstudy,lipidshadthehighestcontents(58.478.2%) andproteinshadthelowest(16.177.3%), which maybeaconsequenceofanitrogendeficiency inphytoplanktongrowthduringthestudyperiod. In contrast,proteins(59.7710.6%DW)werethemajorproximatecomponentsinthemesozooplankton community,whichwasdominatedbycopepodsupto71%oftotalabundance.Thelowlipidcontents (13.8712.4%DW)inthemesozooplanktoncommunityinthisstudymightbeduetothedominanceof small speciessuchas Calanus glacialis, whichgenerallyhaverelativelylowerlipidcontentsthanlarge copepods. Moreover,thespawningperiodof C. glacialis from ApriltoJunemightbeanadditionalreason for thelowlipidcontents,becausecopepodshavenormallyverylowlipidcontentsafterspawning.The low lipidcontentsresultedinalowenergycontentinthismesozooplanktoncommunityinthenorthern Chukchi Sea.Thedifferentbiochemicalcompositionsofphytoplanktonandzooplanktonshouldbe considered inordertounderstandtheimpactsofclimatechangeonthequalityofpreyprovidedby lowertrophiclevelsandsubsequentlyonArcticmarineecosystems.
URI
http://repository.kopri.re.kr/handle/201206/7384
DOI
http://dx.doi.org/10.1016/j.dsr2.2014.05.018
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