Temporal variation in benthic primary production in streams of the Australian wet–dry tropics

E.A. Garcia, Neil Pettit, D.M. Warfe, Peter Davies, P.M. Kyne, P. Novak, M.M. Douglas

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

© 2015, Springer International Publishing Switzerland. In the Australian wet–dry tropics, seasonal changes in hydrology can influence abiotic conditions and consequently influence standing stocks of benthic biomass and production. While there is some understanding of these processes at riverscape scales, effects of seasonal hydrology on benthic biomass and production in low-order streams remain largely unquantified. We observed changes in water quality, algal and macroinvertebrate biomass, and stream benthic primary productivity over a 15-month period in three low-order streams with contrasting flow regimes in the wet–dry tropics of northern Australia. Water quantity and quality showed a distinct seasonal signature reflected in seasonal peaks in algal (maximum 1.29 µg cm−2) and macroinvertebrate biomass (maximum 0.24 g m−2), and productivity (maximum 0.41 g C m−2 days−1). In particular, transitional periods between dry and wet seasons were key times of elevated production and algal biomass. Overall, variation in biomass and benthic primary production was greater between seasons than among streams indicating that extrapolation between seasons may not be appropriate.
Original languageEnglish
Pages (from-to)43-55
JournalHydrobiologia
Volume760
Issue number1
DOIs
Publication statusPublished - 2015

Fingerprint

Tropics
temporal variation
primary production
primary productivity
tropics
Biomass
biomass
Hydrology
macroinvertebrates
hydrology
macroinvertebrate
water quality
Productivity
water quantity
productivity
Extrapolation
scale effect
Switzerland
Water quality
dry season

Cite this

@article{e8b681ab552b44b3bc7fa1d51cdf3810,
title = "Temporal variation in benthic primary production in streams of the Australian wet–dry tropics",
abstract = "{\circledC} 2015, Springer International Publishing Switzerland. In the Australian wet–dry tropics, seasonal changes in hydrology can influence abiotic conditions and consequently influence standing stocks of benthic biomass and production. While there is some understanding of these processes at riverscape scales, effects of seasonal hydrology on benthic biomass and production in low-order streams remain largely unquantified. We observed changes in water quality, algal and macroinvertebrate biomass, and stream benthic primary productivity over a 15-month period in three low-order streams with contrasting flow regimes in the wet–dry tropics of northern Australia. Water quantity and quality showed a distinct seasonal signature reflected in seasonal peaks in algal (maximum 1.29 µg cm−2) and macroinvertebrate biomass (maximum 0.24 g m−2), and productivity (maximum 0.41 g C m−2 days−1). In particular, transitional periods between dry and wet seasons were key times of elevated production and algal biomass. Overall, variation in biomass and benthic primary production was greater between seasons than among streams indicating that extrapolation between seasons may not be appropriate.",
author = "E.A. Garcia and Neil Pettit and D.M. Warfe and Peter Davies and P.M. Kyne and P. Novak and M.M. Douglas",
year = "2015",
doi = "10.1007/s10750-015-2301-6",
language = "English",
volume = "760",
pages = "43--55",
journal = "Hydrobiologia: the international journal of limnology and marine sciences",
issn = "0018-8158",
publisher = "Springer",
number = "1",

}

Temporal variation in benthic primary production in streams of the Australian wet–dry tropics. / Garcia, E.A.; Pettit, Neil; Warfe, D.M.; Davies, Peter; Kyne, P.M.; Novak, P.; Douglas, M.M.

In: Hydrobiologia, Vol. 760, No. 1, 2015, p. 43-55.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Temporal variation in benthic primary production in streams of the Australian wet–dry tropics

AU - Garcia, E.A.

AU - Pettit, Neil

AU - Warfe, D.M.

AU - Davies, Peter

AU - Kyne, P.M.

AU - Novak, P.

AU - Douglas, M.M.

PY - 2015

Y1 - 2015

N2 - © 2015, Springer International Publishing Switzerland. In the Australian wet–dry tropics, seasonal changes in hydrology can influence abiotic conditions and consequently influence standing stocks of benthic biomass and production. While there is some understanding of these processes at riverscape scales, effects of seasonal hydrology on benthic biomass and production in low-order streams remain largely unquantified. We observed changes in water quality, algal and macroinvertebrate biomass, and stream benthic primary productivity over a 15-month period in three low-order streams with contrasting flow regimes in the wet–dry tropics of northern Australia. Water quantity and quality showed a distinct seasonal signature reflected in seasonal peaks in algal (maximum 1.29 µg cm−2) and macroinvertebrate biomass (maximum 0.24 g m−2), and productivity (maximum 0.41 g C m−2 days−1). In particular, transitional periods between dry and wet seasons were key times of elevated production and algal biomass. Overall, variation in biomass and benthic primary production was greater between seasons than among streams indicating that extrapolation between seasons may not be appropriate.

AB - © 2015, Springer International Publishing Switzerland. In the Australian wet–dry tropics, seasonal changes in hydrology can influence abiotic conditions and consequently influence standing stocks of benthic biomass and production. While there is some understanding of these processes at riverscape scales, effects of seasonal hydrology on benthic biomass and production in low-order streams remain largely unquantified. We observed changes in water quality, algal and macroinvertebrate biomass, and stream benthic primary productivity over a 15-month period in three low-order streams with contrasting flow regimes in the wet–dry tropics of northern Australia. Water quantity and quality showed a distinct seasonal signature reflected in seasonal peaks in algal (maximum 1.29 µg cm−2) and macroinvertebrate biomass (maximum 0.24 g m−2), and productivity (maximum 0.41 g C m−2 days−1). In particular, transitional periods between dry and wet seasons were key times of elevated production and algal biomass. Overall, variation in biomass and benthic primary production was greater between seasons than among streams indicating that extrapolation between seasons may not be appropriate.

U2 - 10.1007/s10750-015-2301-6

DO - 10.1007/s10750-015-2301-6

M3 - Article

VL - 760

SP - 43

EP - 55

JO - Hydrobiologia: the international journal of limnology and marine sciences

JF - Hydrobiologia: the international journal of limnology and marine sciences

SN - 0018-8158

IS - 1

ER -