Article: Physiological responses of two sublittoral nassariid gastropods to hypoxia
| Title | Physiological responses of two sublittoral nassariid gastropods to hypoxia | ||||
|---|---|---|---|---|---|
| Authors | Liu, CC2 Chiu, JMY1 Li, L2 Shin, PKS2 Cheung, SG2 | ||||
| Keywords | Dissolved oxygen level Energy budget Hong kong Mortality Nassarius sp. | ||||
| Issue Date | 2011 | ||||
| Publisher | Inter-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?] DOI: http://dx.doi.org/10.3354/meps09107 | ||||
| Abstract | Anthropogenic 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. | ||||
| ISSN | 0171-8630 2011 Impact Factor: 2.711 2011 SCImago Journal Rankings: 0.119 | ||||
| DOI | http://dx.doi.org/10.3354/meps09107 | ||||
| ISI Accession Number ID | WOS:000290682100007
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.contributor.author | Liu, CC | ||||
|---|---|---|---|---|---|
| dc.contributor.author | Chiu, JMY | ||||
| dc.contributor.author | Li, L | ||||
| dc.contributor.author | Shin, PKS | ||||
| dc.contributor.author | Cheung, SG | ||||
| dc.date.accessioned | 2011-08-26T14:39:36Z | ||||
| dc.date.available | 2011-08-26T14:39:36Z | ||||
| dc.date.issued | 2011 | ||||
| dc.description.abstract | Anthropogenic 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.description.nature | Link_to_subscribed_fulltext | ||||
| dc.identifier.citation | Marine Ecology - Progress Series, 2011, v. 429, p. 75-85 [How to Cite?] DOI: http://dx.doi.org/10.3354/meps09107 | ||||
| dc.identifier.doi | http://dx.doi.org/10.3354/meps09107 | ||||
| dc.identifier.epage | 85 | ||||
| dc.identifier.hkuros | 190112 | ||||
| dc.identifier.isi | WOS:000290682100007
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.identifier.issn | 0171-8630 2011 Impact Factor: 2.711 2011 SCImago Journal Rankings: 0.119 | ||||
| dc.identifier.scopus | eid_2-s2.0-79956062081 | ||||
| dc.identifier.spage | 75 | ||||
| dc.identifier.uri | http://hdl.handle.net/10722/138065 | ||||
| dc.identifier.volume | 429 | ||||
| dc.language | eng | ||||
| dc.publisher | Inter-Research. The Journal's web site is located at http://www.int-res.com/journals/meps/index.html | ||||
| dc.publisher.place | Germany | ||||
| dc.relation.ispartof | Marine Ecology - Progress Series | ||||
| dc.rights | Marine Ecology - Progress Series. Copyright © Inter-Research. | ||||
| dc.subject | Dissolved oxygen level | ||||
| dc.subject | Energy budget | ||||
| dc.subject | Hong kong | ||||
| dc.subject | Mortality | ||||
| dc.subject | Nassarius sp. | ||||
| dc.title | Physiological responses of two sublittoral nassariid gastropods to hypoxia | ||||
| dc.type | Article |
Author Affiliations
- The University of Hong Kong
- City University of Hong Kong