Show simple item record

dc.contributor.authorTaipale, Sami
dc.contributor.authorKahilainen, Kimmo Kalevi
dc.contributor.authorHoltgrieve, Gordon William
dc.contributor.authorPeltomaa, Elina Talvikki
dc.date.accessioned2018-03-07T08:01:48Z
dc.date.available2018-03-07T08:01:48Z
dc.date.issued2018
dc.identifier.citationTaipale, S., Kahilainen, K. K., Holtgrieve, G. W., & Peltomaa, E. T. (2018). Simulated eutrophication and browning alters zooplankton nutritional quality and determines juvenile fish growth and survival. <i>Ecology and Evolution</i>, <i>8</i>(5), 2671-2687. <a href="https://doi.org/10.1002/ece3.3832" target="_blank">https://doi.org/10.1002/ece3.3832</a>
dc.identifier.otherCONVID_27892630
dc.identifier.otherTUTKAID_76760
dc.identifier.urihttps://jyx.jyu.fi/handle/123456789/57262
dc.description.abstractThe first few months of life is the most vulnerable period for fish and their optimal hatching time with zooplankton prey is favored by natural selection. Traditionally, however, prey abundance (i.e., zooplankton density) has been considered important, whereas prey nutritional composition has been largely neglected in natural settings. High-quality zooplankton, rich in both essential amino acids (EAAs) and fatty acids (FAs), are required as starting prey to initiate development and fast juvenile growth. Prey quality is dependent on environmental conditions, and, for example, eutrophication and browning are two major factors defining primary producer community structures that will directly determine the nutritional quality of the basal food sources (algae, bacteria, terrestrial matter) for zooplankton. We experimentally tested how eutrophication and browning affect the growth and survival of juvenile rainbow trout (Oncorhynchus mykiss) by changing the quality of basal resources. We fed the fish on herbivorous zooplankton (Daphnia) grown with foods of different nutritional quality (algae, bacteria, terrestrial matter), and used GC-MS, stable isotope labeling as well as bulk and compound-specific stable isotope analyses for detecting the effects of different diets on the nutritional status of fish. The content of EAAs and omega-3 (ω-3) polyunsaturated FAs (PUFAs) in basal foods and zooplankton decreased in both eutrophication and browning treatments. The decrease in ω-3 PUFA and especially docosahexaenoic acid (DHA) was reflected to fish juveniles, but they were able to compensate for low availability of EAAs in their food. Therefore, the reduced growth and survival of the juvenile fish was linked to the low availability of DHA. Fish showed very low ability to convert alpha-linolenic acid (ALA) to DHA. We conclude that eutrophication and browning decrease the availability of the originally phytoplankton-derived DHA for zooplankton and juvenile fish, suggesting bottom-up regulation of food web quality.
dc.language.isoeng
dc.publisherBlackwell Publishing Ltd
dc.relation.ispartofseriesEcology and Evolution
dc.subject.othercompound-specific stable isotopes
dc.subject.otheressential biomolecules
dc.subject.otherfood web
dc.subject.othernutritional quality
dc.titleSimulated eutrophication and browning alters zooplankton nutritional quality and determines juvenile fish growth and survival
dc.typearticle
dc.identifier.urnURN:NBN:fi:jyu-201803061661
dc.contributor.laitosBio- ja ympäristötieteiden laitosfi
dc.contributor.laitosDepartment of Biological and Environmental Scienceen
dc.contributor.oppiaineAkvaattiset tieteetfi
dc.contributor.oppiaineAquatic Sciencesen
dc.type.urihttp://purl.org/eprint/type/JournalArticle
dc.date.updated2018-03-06T13:15:04Z
dc.description.reviewstatuspeerReviewed
dc.format.pagerange2671-2687
dc.relation.issn2045-7758
dc.relation.numberinseries5
dc.relation.volume8
dc.type.versionpublishedVersion
dc.rights.copyright© 2018 The Authors. Ecology and Evolution published by John Wiley & Sons Ltd. This is an open access article distributed under the terms of the Creative Commons License.
dc.rights.accesslevelopenAccessfi
dc.subject.ysoaminohapot
dc.subject.ysoisotoopit
dc.subject.ysobiomolekyylit
dc.subject.ysorasvahapot
dc.subject.ysoravintoverkot
dc.subject.ysoravintoarvo
jyx.subject.urihttp://www.yso.fi/onto/yso/p9530
jyx.subject.urihttp://www.yso.fi/onto/yso/p6387
jyx.subject.urihttp://www.yso.fi/onto/yso/p27773
jyx.subject.urihttp://www.yso.fi/onto/yso/p4800
jyx.subject.urihttp://www.yso.fi/onto/yso/p22082
jyx.subject.urihttp://www.yso.fi/onto/yso/p14080
dc.rights.urlhttps://creativecommons.org/licenses/by/4.0/
dc.relation.doi10.1002/ece3.3832


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record

© 2018 The    Authors. Ecology and Evolution published by John Wiley & Sons Ltd. This is an open access article distributed under the terms of the Creative Commons License.
Except where otherwise noted, this item's license is described as © 2018 The Authors. Ecology and Evolution published by John Wiley & Sons Ltd. This is an open access article distributed under the terms of the Creative Commons License.