Eutrophication indicators in the Hutt River Estuary, New Zealand

被引:10
作者
Fry, B. [1 ]
Rogers, K. [2 ]
Barry, B. [2 ]
Barr, N. [3 ]
Dudley, B. [4 ]
机构
[1] Louisiana State Univ, Dept Oceanog & Coastal Sci, Baton Rouge, LA 70803 USA
[2] GNS Sci, Natl Isotope Ctr, Lower Hutt, New Zealand
[3] Aquaculture Res Ctr, Natl Inst Water & Atmospher Res, Wellington, New Zealand
[4] Univ Hawaii, Dept Biol, Hilo, HI 96720 USA
关键词
Ulva; nitrogen isotopes; nutrients; carbon isotopes; urban estuary; consumers; food webs; ALGAL; WELLINGTON; SIGNATURES; NUTRIENTS; POLLUTION; BLOOMS; COAST;
D O I
10.1080/00288330.2011.578652
中图分类号
S9 [水产、渔业];
学科分类号
0908 ;
摘要
The Hutt River estuary near Wellington New Zealand has a luxuriant intertidal band of green macroalgae growing throughout the year. Investigations of water chemistry suggested that the upstream freshwater river was likely P-limited and passed on watershed nitrogen nutrients to the estuary. P fertilisation of the estuary from marine waters led to crossing N and P nutrient loadings that support the observed macroalgal proliferation. Chemical analyses of nutrients, macroalgae, and barnacle and mussel consumers were used to understand further the mix of factors controlling eutrophication and food webs in this urban estuary. delta N-15 and delta C-13 were respective helpful indicators of watershed N inputs and C cycling between benthic and pelagic parts of the food web.
引用
收藏
页码:665 / 677
页数:13
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