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Authors Bulmer, RH; Kelly, S; Jeffs, AG
Author Full Name Bulmer, R. H.; Kelly, S.; Jeffs, A. G.
Title Light requirements of the seagrass, Zostera muelleri, determined by observations at the maximum depth limit in a temperate estuary, New Zealand
Source NEW ZEALAND JOURNAL OF MARINE AND FRESHWATER RESEARCH
Language English
Document Type Article
Author Keywords Kaipara Harbour; light availability; seagrass; subtidal; Zostera muelleri
Keywords Plus WATER-QUALITY; CAPRICORNI ASCHERS; POSIDONIA-OCEANICA; GROWTH DYNAMICS; COASTAL; PHOTOSYNTHESIS; ECOSYSTEMS; IRRADIANCE; QUEENSLAND; MEADOW
Abstract The Kaipara Harbour in New Zealand is one of the largest estuarine systems in the world, containing significant areas of subtidal seagrass habitat (Zostera muelleri). Light availability at the maximum depth limit for Z. muelleri was measured at 2.10 (0.19 SEM) and 4.91 (0.53 SEM) mol photons m(-2) d(-1) during the winter and summer monitoring periods, respectively. The primary drivers of benthic light availability were found to be surface light availability, the timing of the low tide and water clarity. Core sampling analysis suggested that biomass of seagrass growing at the maximum depth limit was low, indicative of light limitation. The results of this study suggest that the subtidal distribution of seagrass in the Kaipara Harbour is light-limited and that reductions in water clarity due to changes in land use are likely to result in significant reductions in the extent and productivity of subtidal seagrass habitat.
Author Address [Bulmer, R. H.; Jeffs, A. G.] Univ Auckland, Leigh Marine Lab, Warkworth, New Zealand; [Kelly, S.] Coast & Catchment Ltd, Auckland, New Zealand
Reprint Address Bulmer, RH (corresponding author), Univ Auckland, Leigh Marine Lab, Warkworth, New Zealand.
E-mail Address bulmer.richard@gmail.com
ORCID Number Kelly, Shane/0000-0003-2443-5810; Jeffs, Andrew/0000-0002-8504-1949; Bulmer, Richard/0000-0002-9412-827X
Funding Agency and Grant Number Foundation for Research, Science and Technology in New ZealandNew Zealand Foundation for Research, Science and Technology; Glenn Family Foundation; Biomarine Ltd.
Funding Text This research was supported by the Foundation for Research, Science and Technology in New Zealand, the Glenn Family Foundation and Biomarine Ltd.
Times Cited 9
Total Times Cited Count (WoS, BCI, and CSCD) 9
Publisher TAYLOR & FRANCIS LTD
Publisher City ABINGDON
Publisher Address 2-4 PARK SQUARE, MILTON PARK, ABINGDON OR14 4RN, OXON, ENGLAND
ISSN 0028-8330
29-Character Source Abbreviation NEW ZEAL J MAR FRESH
ISO Source Abbreviation N. Z. J. Mar. Freshw. Res.
Publication Date JUN
Year Published 2016
Volume 50
Issue 2
Beginning Page 183
Ending Page 194
Digital Object Identifier (DOI) 10.1080/00288330.2015.1120759
Page Count 12
Web of Science Category Fisheries; Marine & Freshwater Biology; Oceanography
Subject Category Fisheries; Marine & Freshwater Biology; Oceanography
Document Delivery Number DP6RE
Unique Article Identifier WOS:000378625200001
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