Thermal regimes in the hyporheic zone of two contrasting salmon spawning streams; hydrological and ecological implications

I. Malcolm, Christopher Soulsby, A. Youngson

Research output: Contribution to journalArticle

40 Citations (Scopus)

Abstract

The temperatures of stream water and hyporheic water were monitored in spawning areas of an upland stream (Girnock Burn) and a degraded lowland stream (Newmills Burn). Both streams are located in North-east Scotland and are spawning streams for Atlantic salmon, Sabno salar L., and brown trout, S. trutta L. Monitoring between the spawning and hatching of ova revealed significant differences in the thermal regimes of the two sites. Whilst temperatures in stream and hyporheic water were similar in the Girnock, notable attenuation in the Newmills Burn resulted in increasing moderation of thermal regime with hyporheic depth. This probably reflects contrasting groundwater-surface water interactions in the two systems. In the Girnock an open gravel stream bed and lack of groundwater influence resulted in stream water downwelling through the gravel. In contrast, fine bed sediments and local groundwater inputs resulted in more complex stratification of temperatures in Newmills Burn. However, even in the conditions of the Newmills Burn, temperature based salmonid embryo development models predicted that egg burial depth has an insubstantial effect on ova development.

Original languageEnglish
Pages (from-to)1-10
Number of pages9
JournalFisheries Management and Ecology
Volume9
Issue number1
DOIs
Publication statusPublished - 2002

Keywords

  • groundwater
  • hydrology
  • hyporheic
  • ova
  • salmon
  • temperature
  • GROUNDWATER
  • TEMPERATURE
  • RIVER
  • INCUBATION
  • PREDICTION
  • EMERGENCE

Cite this

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title = "Thermal regimes in the hyporheic zone of two contrasting salmon spawning streams; hydrological and ecological implications",
abstract = "The temperatures of stream water and hyporheic water were monitored in spawning areas of an upland stream (Girnock Burn) and a degraded lowland stream (Newmills Burn). Both streams are located in North-east Scotland and are spawning streams for Atlantic salmon, Sabno salar L., and brown trout, S. trutta L. Monitoring between the spawning and hatching of ova revealed significant differences in the thermal regimes of the two sites. Whilst temperatures in stream and hyporheic water were similar in the Girnock, notable attenuation in the Newmills Burn resulted in increasing moderation of thermal regime with hyporheic depth. This probably reflects contrasting groundwater-surface water interactions in the two systems. In the Girnock an open gravel stream bed and lack of groundwater influence resulted in stream water downwelling through the gravel. In contrast, fine bed sediments and local groundwater inputs resulted in more complex stratification of temperatures in Newmills Burn. However, even in the conditions of the Newmills Burn, temperature based salmonid embryo development models predicted that egg burial depth has an insubstantial effect on ova development.",
keywords = "groundwater, hydrology, hyporheic, ova, salmon, temperature, GROUNDWATER, TEMPERATURE, RIVER, INCUBATION, PREDICTION, EMERGENCE",
author = "I. Malcolm and Christopher Soulsby and A. Youngson",
year = "2002",
doi = "10.1046/j.1365-2400.2002.00276.x",
language = "English",
volume = "9",
pages = "1--10",
journal = "Fisheries Management and Ecology",
issn = "0969-997X",
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TY - JOUR

T1 - Thermal regimes in the hyporheic zone of two contrasting salmon spawning streams; hydrological and ecological implications

AU - Malcolm, I.

AU - Soulsby, Christopher

AU - Youngson, A.

PY - 2002

Y1 - 2002

N2 - The temperatures of stream water and hyporheic water were monitored in spawning areas of an upland stream (Girnock Burn) and a degraded lowland stream (Newmills Burn). Both streams are located in North-east Scotland and are spawning streams for Atlantic salmon, Sabno salar L., and brown trout, S. trutta L. Monitoring between the spawning and hatching of ova revealed significant differences in the thermal regimes of the two sites. Whilst temperatures in stream and hyporheic water were similar in the Girnock, notable attenuation in the Newmills Burn resulted in increasing moderation of thermal regime with hyporheic depth. This probably reflects contrasting groundwater-surface water interactions in the two systems. In the Girnock an open gravel stream bed and lack of groundwater influence resulted in stream water downwelling through the gravel. In contrast, fine bed sediments and local groundwater inputs resulted in more complex stratification of temperatures in Newmills Burn. However, even in the conditions of the Newmills Burn, temperature based salmonid embryo development models predicted that egg burial depth has an insubstantial effect on ova development.

AB - The temperatures of stream water and hyporheic water were monitored in spawning areas of an upland stream (Girnock Burn) and a degraded lowland stream (Newmills Burn). Both streams are located in North-east Scotland and are spawning streams for Atlantic salmon, Sabno salar L., and brown trout, S. trutta L. Monitoring between the spawning and hatching of ova revealed significant differences in the thermal regimes of the two sites. Whilst temperatures in stream and hyporheic water were similar in the Girnock, notable attenuation in the Newmills Burn resulted in increasing moderation of thermal regime with hyporheic depth. This probably reflects contrasting groundwater-surface water interactions in the two systems. In the Girnock an open gravel stream bed and lack of groundwater influence resulted in stream water downwelling through the gravel. In contrast, fine bed sediments and local groundwater inputs resulted in more complex stratification of temperatures in Newmills Burn. However, even in the conditions of the Newmills Burn, temperature based salmonid embryo development models predicted that egg burial depth has an insubstantial effect on ova development.

KW - groundwater

KW - hydrology

KW - hyporheic

KW - ova

KW - salmon

KW - temperature

KW - GROUNDWATER

KW - TEMPERATURE

KW - RIVER

KW - INCUBATION

KW - PREDICTION

KW - EMERGENCE

U2 - 10.1046/j.1365-2400.2002.00276.x

DO - 10.1046/j.1365-2400.2002.00276.x

M3 - Article

VL - 9

SP - 1

EP - 10

JO - Fisheries Management and Ecology

JF - Fisheries Management and Ecology

SN - 0969-997X

IS - 1

ER -