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Article: Physiological responses of two sublittoral nassariid gastropods to hypoxia

TitlePhysiological responses of two sublittoral nassariid gastropods to hypoxia
Authors
KeywordsDissolved oxygen level
Energy budget
Hong kong
Mortality
Nassarius sp.
Issue Date2011
PublisherInter-Research. The Journal's web site is located at http://www.int-res.com/journals/meps/index.html
Citation
Marine Ecology - Progress Series, 2011, v. 429, p. 75-85 How to Cite?
AbstractAnthropogenic hypoxia of coastal bottom waters now affects hundreds of thousands of km2 worldwide. The present study investigated the physiological responses of 2 sublittoral nassariid gastropods, Nassarius conoidalis and N. siquijorensis, to hypoxia using endpoints, including scope for growth (SfG) and the related energy budget items (i.e. rate of energy intake from food, rate of energy lost to respiration and rate of energy lost to excretion) over a 31-d laboratory experiment. Our results showed that after exposure for ≥8 d, the stronger hypoxia treatment of 1.5 mg O2 l–1 significantly reduced the rate of energy intake for ­Nassarius siquijorensis, while N. conoidalis stopped feeding in the same treatment. SfG was sig­nificantly reduced in N. siquijorensis after exposure to 1.5 mg O2 l–1 during the mid and late exposure period. Exposure to ≤3 mg O2 l–1 also resulted in a negative SfG for N. conoidalis, except for the weaker hypoxia treatment during the late exposure period. Nassariid gastropods occur in great abundance in Hong Kong waters; therefore, any adverse effect on these gastropods may lead to major ecological consequences, including altered trophodynamics and disrupted nutrient recycling processes in coastal ecosystems.
Persistent Identifierhttp://hdl.handle.net/10722/138065
ISSN
2015 Impact Factor: 2.361
2015 SCImago Journal Rankings: 1.554
ISI Accession Number ID
Funding AgencyGrant Number
Research Grants Council of the Hong Kong Special Administrative Region, ChinaCityU 1401/06M
Funding Information:

This manuscript benefited greatly from the comments and suggestions of 4 anonymous reviewers, especially those on how to structure the Introduction section, improve the writing and interpret the data. The work described in this paper was fully supported by a grant from the Research Grants Council of the Hong Kong Special Administrative Region, China (Project No. CityU 1401/06M).

 

DC FieldValueLanguage
dc.contributor.authorLiu, CCen_US
dc.contributor.authorChiu, JMYen_US
dc.contributor.authorLi, Len_US
dc.contributor.authorShin, PKSen_US
dc.contributor.authorCheung, SGen_US
dc.date.accessioned2011-08-26T14:39:36Z-
dc.date.available2011-08-26T14:39:36Z-
dc.date.issued2011en_US
dc.identifier.citationMarine Ecology - Progress Series, 2011, v. 429, p. 75-85en_US
dc.identifier.issn0171-8630-
dc.identifier.urihttp://hdl.handle.net/10722/138065-
dc.description.abstractAnthropogenic hypoxia of coastal bottom waters now affects hundreds of thousands of km2 worldwide. The present study investigated the physiological responses of 2 sublittoral nassariid gastropods, Nassarius conoidalis and N. siquijorensis, to hypoxia using endpoints, including scope for growth (SfG) and the related energy budget items (i.e. rate of energy intake from food, rate of energy lost to respiration and rate of energy lost to excretion) over a 31-d laboratory experiment. Our results showed that after exposure for ≥8 d, the stronger hypoxia treatment of 1.5 mg O2 l–1 significantly reduced the rate of energy intake for ­Nassarius siquijorensis, while N. conoidalis stopped feeding in the same treatment. SfG was sig­nificantly reduced in N. siquijorensis after exposure to 1.5 mg O2 l–1 during the mid and late exposure period. Exposure to ≤3 mg O2 l–1 also resulted in a negative SfG for N. conoidalis, except for the weaker hypoxia treatment during the late exposure period. Nassariid gastropods occur in great abundance in Hong Kong waters; therefore, any adverse effect on these gastropods may lead to major ecological consequences, including altered trophodynamics and disrupted nutrient recycling processes in coastal ecosystems.-
dc.languageengen_US
dc.publisherInter-Research. The Journal's web site is located at http://www.int-res.com/journals/meps/index.html-
dc.relation.ispartofMarine Ecology - Progress Seriesen_US
dc.rightsMarine Ecology - Progress Series. Copyright © Inter-Research.-
dc.subjectDissolved oxygen level-
dc.subjectEnergy budget-
dc.subjectHong kong-
dc.subjectMortality-
dc.subjectNassarius sp.-
dc.titlePhysiological responses of two sublittoral nassariid gastropods to hypoxiaen_US
dc.typeArticleen_US
dc.identifier.emailChiu, JMY: jillchiu@hku.hken_US
dc.identifier.authorityChiu, JMY=rp01325en_US
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.3354/meps09107-
dc.identifier.scopuseid_2-s2.0-79956062081-
dc.identifier.hkuros190112en_US
dc.identifier.volume429en_US
dc.identifier.spage75en_US
dc.identifier.epage85en_US
dc.identifier.isiWOS:000290682100007-
dc.publisher.placeGermany-

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