Undetected Blooms in Prince William Sound: Using Multiple Techniques to Elucidate the Base of the Summer Food Web

McInnes, AS; Nunnally, CC; Rowe, GT; Davis, RW; Quigg, A

Undetected Blooms in Prince William Sound: Using Multiple Techniques to Elucidate the Base of the Summer Food Web

McInnes, AS

Nunnally, CC Rowe, GT Davis, RW Quigg, A

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Publication Type:: Journal Article
Citation:: Estuaries and Coasts, 2015, 38 (6), pp. 2227 - 2239
Issue Date:: 2015-11-01

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Field	Value	Language
dc.contributor.author	McInnes, AS https://orcid.org/0000-0002-8340-3133	en_US
dc.contributor.author	Nunnally, CC	en_US
dc.contributor.author	Rowe, GT	en_US
dc.contributor.author	Davis, RW	en_US
dc.contributor.author	Quigg, A	en_US
dc.date.available	2020-05-25T19:21:16Z
dc.date.issued	2015-11-01	en_US
dc.identifier.citation	Estuaries and Coasts, 2015, 38 (6), pp. 2227 - 2239	en_US
dc.identifier.issn	1559-2723	en_US
dc.identifier.uri	http://hdl.handle.net/10453/32763
dc.description.abstract	© 2015, Coastal and Estuarine Research Federation. Prince William Sound supports many commercially and culturally important species. The phytoplankton community dynamics which support and sustain the high biomass and diversity of this ecosystem are largely unknown. The aim of this study was to describe the phytoplankton community composition during the summer, the time at which this system supports many additional migrants and commercially important fisheries. Phytoplankton community composition (pigments), dissolved nutrients, Secchi depth, total and particulate organic carbon and nitrogen, and export to deep water were measured during the summers of 2008–2010. In addition, natural abundance stable isotopes (δ13C and δ15N) of particulate organic matter (POM) and faunal samples were measured in 2010. The analysis of the phytoplankton community composition using multivariate statistics showed that changes over the summer were driven by changes in the proportion of the dominant groups: diatoms, dinoflagellates, cyanobacteria, cryptophytes, chlorophytes, and prasinophytes. These changes were driven by changes in nutrients including an organic nitrogen source, phosphate, and silica and correspond to shifts in particulate concentrations. A consistent pattern was observed each year: a large Noctiluca sp. bloom in June concurrent with low nutrients, low diversity, and high particulate organic carbon (POC) concentrations was followed by a shift in the phytoplankton community to a more diverse smaller size class community in July and equilibrating in August. This annual summer bloom could be an important contributor to the energy and nutrient inputs at the base of the regional marine food web.	en_US
dc.relation.ispartof	Estuaries and Coasts	en_US
dc.relation.isbasedon	10.1007/s12237-014-9924-0	en_US
dc.subject.classification	Marine Biology & Hydrobiology	en_US
dc.title	Undetected Blooms in Prince William Sound: Using Multiple Techniques to Elucidate the Base of the Summer Food Web	en_US
dc.type	Journal Article
utslib.citation.volume	6	en_US
utslib.citation.volume	38	en_US
utslib.for	0602 Ecology	en_US
utslib.for	04 Earth Sciences	en_US
utslib.for	05 Environmental Sciences	en_US
utslib.for	06 Biological Sciences	en_US
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Science
utslib.copyright.status	open_access
pubs.issue	6	en_US
pubs.publication-status	Published	en_US
pubs.volume	38	en_US

Abstract:

© 2015, Coastal and Estuarine Research Federation. Prince William Sound supports many commercially and culturally important species. The phytoplankton community dynamics which support and sustain the high biomass and diversity of this ecosystem are largely unknown. The aim of this study was to describe the phytoplankton community composition during the summer, the time at which this system supports many additional migrants and commercially important fisheries. Phytoplankton community composition (pigments), dissolved nutrients, Secchi depth, total and particulate organic carbon and nitrogen, and export to deep water were measured during the summers of 2008–2010. In addition, natural abundance stable isotopes (δ13C and δ15N) of particulate organic matter (POM) and faunal samples were measured in 2010. The analysis of the phytoplankton community composition using multivariate statistics showed that changes over the summer were driven by changes in the proportion of the dominant groups: diatoms, dinoflagellates, cyanobacteria, cryptophytes, chlorophytes, and prasinophytes. These changes were driven by changes in nutrients including an organic nitrogen source, phosphate, and silica and correspond to shifts in particulate concentrations. A consistent pattern was observed each year: a large Noctiluca sp. bloom in June concurrent with low nutrients, low diversity, and high particulate organic carbon (POC) concentrations was followed by a shift in the phytoplankton community to a more diverse smaller size class community in July and equilibrating in August. This annual summer bloom could be an important contributor to the energy and nutrient inputs at the base of the regional marine food web.

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http://hdl.handle.net/10453/32763