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Article: Selective feeding by the mudskipper (Boleophthalmus pectinirostris) on the microalgal assemblage of a tropical mudflat

TitleSelective feeding by the mudskipper (Boleophthalmus pectinirostris) on the microalgal assemblage of a tropical mudflat
Authors
Issue Date2003
PublisherSpringer Verlag. The Journal's web site is located at http://link.springer.de/link/service/journals/00227/index.htm
Citation
Marine Biology, 2003, v. 143 n. 2, p. 245-256 How to Cite?
AbstractTemporal variation in abundance of the microphytobenthos on an estuarine mudflat in Hong Kong was investigated over a 13-month period. Abundance, in terms of both cell counts and chlorophyll-a (chl-a) concentration, of the diatom-dominated assemblage was higher (peak at 47 mg chl-a m -2 in January) in the cooler months than in the warmer months (minimum at 11 mg chl-a m -2 in August). Variation in surface density (range: 0.25-1.9 individuals m -2) of the herbivorous mudskipper Boleophthalmus pectinirostris was also temporally variable, with a broadly inverse pattern to that of the microphytobenthos. Comparison of the relative abundance of diatom species in the gut and on the mud surface using Strauss' linear selectivity index suggests significant size-selective feeding by B. pectinirostris. Diatoms with maximum lengths > 50 μm were selectively ingested whereas smaller species were rejected. This critical diatom length is close to the average distance between branchiospines of the fish's gills, suggesting their involvement in a physical sieving process that is responsible for the size-selective feeding. Significant differences in feeding pattern exist between adult (> 80 mm standard length) and juvenile fish. As a result of seasonal variations in density and selective removal of the larger diatoms, B. pectinirostris exerts a significant impact on the abundance and structure of the mudflat microphytobenthos.
Persistent Identifierhttp://hdl.handle.net/10722/73122
ISSN
2015 Impact Factor: 2.375
2015 SCImago Journal Rankings: 1.302
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorYang, KYen_HK
dc.contributor.authorLee, SYen_HK
dc.contributor.authorWilliams, GAen_HK
dc.date.accessioned2010-09-06T06:48:22Z-
dc.date.available2010-09-06T06:48:22Z-
dc.date.issued2003en_HK
dc.identifier.citationMarine Biology, 2003, v. 143 n. 2, p. 245-256en_HK
dc.identifier.issn0025-3162en_HK
dc.identifier.urihttp://hdl.handle.net/10722/73122-
dc.description.abstractTemporal variation in abundance of the microphytobenthos on an estuarine mudflat in Hong Kong was investigated over a 13-month period. Abundance, in terms of both cell counts and chlorophyll-a (chl-a) concentration, of the diatom-dominated assemblage was higher (peak at 47 mg chl-a m -2 in January) in the cooler months than in the warmer months (minimum at 11 mg chl-a m -2 in August). Variation in surface density (range: 0.25-1.9 individuals m -2) of the herbivorous mudskipper Boleophthalmus pectinirostris was also temporally variable, with a broadly inverse pattern to that of the microphytobenthos. Comparison of the relative abundance of diatom species in the gut and on the mud surface using Strauss' linear selectivity index suggests significant size-selective feeding by B. pectinirostris. Diatoms with maximum lengths > 50 μm were selectively ingested whereas smaller species were rejected. This critical diatom length is close to the average distance between branchiospines of the fish's gills, suggesting their involvement in a physical sieving process that is responsible for the size-selective feeding. Significant differences in feeding pattern exist between adult (> 80 mm standard length) and juvenile fish. As a result of seasonal variations in density and selective removal of the larger diatoms, B. pectinirostris exerts a significant impact on the abundance and structure of the mudflat microphytobenthos.en_HK
dc.languageengen_HK
dc.publisherSpringer Verlag. The Journal's web site is located at http://link.springer.de/link/service/journals/00227/index.htmen_HK
dc.relation.ispartofMarine Biologyen_HK
dc.titleSelective feeding by the mudskipper (Boleophthalmus pectinirostris) on the microalgal assemblage of a tropical mudflaten_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0025-3162&volume=143&spage=245&epage=256&date=2003&atitle=Selective+feeding+by+the+mudskipper+(Boleophthalmus+pectinirostris)+on+the+microalgal+assemblage+of+a+tropical+mudflaten_HK
dc.identifier.emailWilliams, GA: hrsbwga@hkucc.hku.hken_HK
dc.identifier.authorityWilliams, GA=rp00804en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1007/s00227-003-1067-yen_HK
dc.identifier.scopuseid_2-s2.0-0141784871en_HK
dc.identifier.hkuros79750en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0141784871&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume143en_HK
dc.identifier.issue2en_HK
dc.identifier.spage245en_HK
dc.identifier.epage256en_HK
dc.identifier.isiWOS:000185536900004-
dc.publisher.placeGermanyen_HK
dc.identifier.scopusauthoridYang, KY=7404291063en_HK
dc.identifier.scopusauthoridLee, SY=23389469200en_HK
dc.identifier.scopusauthoridWilliams, GA=7406082821en_HK

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