Vertical distribution and trophic interactions of zooplankton and fish in Masfjorden, Norway

Jarl Giske; Dag L. Aksnes; Beatriz M. Baliño; Stein Kaartvedt; Ulf Lie; Jarle Tryti Nordeide; Anne Gro Vea Salvanes; Sami M. Wakili; Agnes Aadnesen

doi:10.1080/00364827.1990.10413442

Vertical distribution and trophic interactions of zooplankton and fish in Masfjorden, Norway

Jarl Giske, Dag L. Aksnes, Beatriz M. Baliño, Stein Kaartvedt, Ulf Lie, Jarle Tryti Nordeide, Anne Gro Vea Salvanes, Sami M. Wakili, Agnes Aadnesen

Biological, Environmental Science and Engineering

Research output: Contribution to journal › Article › peer-review

98 Scopus citations

Abstract

The distribution, biomass, and predator-prey relationships of the pelagic assemblage in Masfjorden, western Norway, was studied in January 1989. The pelagic biomass was dominated by particulate organic matter. Biomasses of copepods, macroplankton, and mesopelagic fishes were of the same order of magnitude, while the biomass of larger pelagic fishes were one order less. Predator-prey relationships seemed most important at intermediate and higher trophic levels. Two sound-scattering layers, consisting of adult Maurolicus muelleri (lower layer) and juvenile M. muelleri (upper layer) performed instantaneous light- dependent vertical migration. Vertical distributions are explained in terms of balancing food demands against predation risk.

Original language	English (US)
Pages (from-to)	65-81
Number of pages	17
Journal	Sarsia
Volume	75
Issue number	1
DOIs	https://doi.org/10.1080/00364827.1990.10413442
State	Published - May 9 1990

ASJC Scopus subject areas

Aquatic Science
Ecology

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title = "Vertical distribution and trophic interactions of zooplankton and fish in Masfjorden, Norway",

abstract = "The distribution, biomass, and predator-prey relationships of the pelagic assemblage in Masfjorden, western Norway, was studied in January 1989. The pelagic biomass was dominated by particulate organic matter. Biomasses of copepods, macroplankton, and mesopelagic fishes were of the same order of magnitude, while the biomass of larger pelagic fishes were one order less. Predator-prey relationships seemed most important at intermediate and higher trophic levels. Two sound-scattering layers, consisting of adult Maurolicus muelleri (lower layer) and juvenile M. muelleri (upper layer) performed instantaneous light- dependent vertical migration. Vertical distributions are explained in terms of balancing food demands against predation risk.",

author = "Jarl Giske and Aksnes, {Dag L.} and Bali{\~n}o, {Beatriz M.} and Stein Kaartvedt and Ulf Lie and Nordeide, {Jarle Tryti} and Salvanes, {Anne Gro Vea} and Wakili, {Sami M.} and Agnes Aadnesen",

year = "1990",

month = may,

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doi = "10.1080/00364827.1990.10413442",

language = "English (US)",

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pages = "65--81",

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Vertical distribution and trophic interactions of zooplankton and fish in Masfjorden, Norway. / Giske, Jarl; Aksnes, Dag L.; Baliño, Beatriz M.; Kaartvedt, Stein; Lie, Ulf; Nordeide, Jarle Tryti; Salvanes, Anne Gro Vea; Wakili, Sami M.; Aadnesen, Agnes.

In: Sarsia, Vol. 75, No. 1, 09.05.1990, p. 65-81.

Research output: Contribution to journal › Article › peer-review

TY - JOUR

T1 - Vertical distribution and trophic interactions of zooplankton and fish in Masfjorden, Norway

AU - Giske, Jarl

AU - Aksnes, Dag L.

AU - Baliño, Beatriz M.

AU - Kaartvedt, Stein

AU - Lie, Ulf

AU - Nordeide, Jarle Tryti

AU - Salvanes, Anne Gro Vea

AU - Wakili, Sami M.

AU - Aadnesen, Agnes

PY - 1990/5/9

Y1 - 1990/5/9

N2 - The distribution, biomass, and predator-prey relationships of the pelagic assemblage in Masfjorden, western Norway, was studied in January 1989. The pelagic biomass was dominated by particulate organic matter. Biomasses of copepods, macroplankton, and mesopelagic fishes were of the same order of magnitude, while the biomass of larger pelagic fishes were one order less. Predator-prey relationships seemed most important at intermediate and higher trophic levels. Two sound-scattering layers, consisting of adult Maurolicus muelleri (lower layer) and juvenile M. muelleri (upper layer) performed instantaneous light- dependent vertical migration. Vertical distributions are explained in terms of balancing food demands against predation risk.

AB - The distribution, biomass, and predator-prey relationships of the pelagic assemblage in Masfjorden, western Norway, was studied in January 1989. The pelagic biomass was dominated by particulate organic matter. Biomasses of copepods, macroplankton, and mesopelagic fishes were of the same order of magnitude, while the biomass of larger pelagic fishes were one order less. Predator-prey relationships seemed most important at intermediate and higher trophic levels. Two sound-scattering layers, consisting of adult Maurolicus muelleri (lower layer) and juvenile M. muelleri (upper layer) performed instantaneous light- dependent vertical migration. Vertical distributions are explained in terms of balancing food demands against predation risk.

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JO - Sarsia

JF - Sarsia

SN - 0036-4827

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ER -

Vertical distribution and trophic interactions of zooplankton and fish in Masfjorden, Norway

Abstract

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