File Download

There are no files associated with this item.

  Links for fulltext
     (May Require Subscription)
Supplementary

Article: Chronic effects of suspended solids on gill structure, osmoregulation, growth, and triiodothyronine in juvenile green grouper Epinephelus coioides

TitleChronic effects of suspended solids on gill structure, osmoregulation, growth, and triiodothyronine in juvenile green grouper Epinephelus coioides
Authors
KeywordsGill structure
Grouper
Growth
Osmoregulation
RNA:DNA ratio
Suspended solids
Triiodothyronine
Issue Date2004
PublisherInter-Research. The Journal's web site is located at http://www.int-res.com/journals/meps/index.html
Citation
Marine Ecology Progress Series, 2004, v. 266, p. 255-264 How to Cite?
AbstractDespite suspended solids being an important water-quality parameter in the regulatory process, very little is known about the risks of prolonged exposure to high concentrations of suspended solids in fish, especially marine species. In this study, the green grouper Epinephelus coioides, an important mariculture species with a wide geographic distribution, was exposed to various concentrations (0, 50, 100, 200, 1000 and 2000 mg l -1) of suspended solids for 6 wk. The results showed that exposure was not lethal at environmentally realistic concentrations, and no changes in food intake, growth and RNA:DNA ratio were observed. However, damages to gill structure, including epithelium lifting, hyperplasia in the pillar system, and reduction of epithelial volume, were clearly evident, and strongly correlated with suspended solid concentration exposure. Despite the observation that serum osmolarity and haematocrit values did not change, Na +, K +-ATPase activities and chloride cells of the gill lamellae were altered, indicating that fish were experiencing osmoregulatory stress. Reduction in levels of free triiodothyronine (T3) in serum further confirmed that fish were experiencing physiological stress with suspended solids exposure. The overall results suggested that prolonged exposures can cause sub-lethal stress and compromise fish health, even though the high suspended solids we delivered were in concentrations that have been reported in coastal environments as not lethal to green grouper.
Persistent Identifierhttp://hdl.handle.net/10722/92748
ISSN
2015 Impact Factor: 2.361
2015 SCImago Journal Rankings: 1.554
References

 

DC FieldValueLanguage
dc.contributor.authorAu, DWTen_HK
dc.contributor.authorPollino, CAen_HK
dc.contributor.authorWu, RSSen_HK
dc.contributor.authorShin, PKSen_HK
dc.contributor.authorLau, STFen_HK
dc.contributor.authorTang, JYMen_HK
dc.date.accessioned2010-09-17T10:56:00Z-
dc.date.available2010-09-17T10:56:00Z-
dc.date.issued2004en_HK
dc.identifier.citationMarine Ecology Progress Series, 2004, v. 266, p. 255-264en_HK
dc.identifier.issn0171-8630en_HK
dc.identifier.urihttp://hdl.handle.net/10722/92748-
dc.description.abstractDespite suspended solids being an important water-quality parameter in the regulatory process, very little is known about the risks of prolonged exposure to high concentrations of suspended solids in fish, especially marine species. In this study, the green grouper Epinephelus coioides, an important mariculture species with a wide geographic distribution, was exposed to various concentrations (0, 50, 100, 200, 1000 and 2000 mg l -1) of suspended solids for 6 wk. The results showed that exposure was not lethal at environmentally realistic concentrations, and no changes in food intake, growth and RNA:DNA ratio were observed. However, damages to gill structure, including epithelium lifting, hyperplasia in the pillar system, and reduction of epithelial volume, were clearly evident, and strongly correlated with suspended solid concentration exposure. Despite the observation that serum osmolarity and haematocrit values did not change, Na +, K +-ATPase activities and chloride cells of the gill lamellae were altered, indicating that fish were experiencing osmoregulatory stress. Reduction in levels of free triiodothyronine (T3) in serum further confirmed that fish were experiencing physiological stress with suspended solids exposure. The overall results suggested that prolonged exposures can cause sub-lethal stress and compromise fish health, even though the high suspended solids we delivered were in concentrations that have been reported in coastal environments as not lethal to green grouper.en_HK
dc.languageengen_HK
dc.publisherInter-Research. The Journal's web site is located at http://www.int-res.com/journals/meps/index.htmlen_HK
dc.relation.ispartofMarine Ecology Progress Seriesen_HK
dc.subjectGill structureen_HK
dc.subjectGrouperen_HK
dc.subjectGrowthen_HK
dc.subjectOsmoregulationen_HK
dc.subjectRNA:DNA ratioen_HK
dc.subjectSuspended solidsen_HK
dc.subjectTriiodothyronineen_HK
dc.titleChronic effects of suspended solids on gill structure, osmoregulation, growth, and triiodothyronine in juvenile green grouper Epinephelus coioidesen_HK
dc.typeArticleen_HK
dc.identifier.emailWu, RSS: rudolfwu@hku.hken_HK
dc.identifier.authorityWu, RSS=rp01398en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.scopuseid_2-s2.0-1342268717en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-1342268717&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume266en_HK
dc.identifier.spage255en_HK
dc.identifier.epage264en_HK
dc.publisher.placeGermanyen_HK
dc.identifier.scopusauthoridAu, DWT=7004909228en_HK
dc.identifier.scopusauthoridPollino, CA=6602351526en_HK
dc.identifier.scopusauthoridWu, RSS=7402945079en_HK
dc.identifier.scopusauthoridShin, PKS=7004445653en_HK
dc.identifier.scopusauthoridLau, STF=7401596354en_HK
dc.identifier.scopusauthoridTang, JYM=25957708300en_HK

Export via OAI-PMH Interface in XML Formats


OR


Export to Other Non-XML Formats