Model for Accumulation of Methyl Mercury in Northern Pike Esox lucius

Oikos ◽  
1974 ◽  
Vol 25 (1) ◽  
pp. 14 ◽  
Author(s):  
Torbjörn Fagerström ◽  
Bo Åsell ◽  
Arne Jernelöv ◽  
Torbjorn Fagerstrom ◽  
Bo Asell ◽  
...  
Keyword(s):  
Methyl Mercury ◽  
Northern Pike ◽  
Esox Lucius ◽  
Pike Esox Lucius

Mercury concentrations in northern pike ( Esox lucius) from boreal lakes with logged, burned, or undisturbed catchments

2000 ◽  
Vol 57 (S2) ◽  
pp. 129-135 ◽  
Author(s):  
Edenise Garcia ◽  
Richard Carignan
Keyword(s):  
Methyl Mercury ◽  
Trophic Position ◽  
Light Attenuation ◽  
Dry Weight ◽  
Northern Pike ◽  
Esox Lucius ◽  
Boreal Lakes ◽  
Total N ◽  
Organic C ◽  
Pike Esox Lucius

We measured total Hg and stable isotopes (δ13C and δ15N) in northern pike (Esox lucius) from 19 Boreal Shield lakes with undisturbed, logged, or burned watersheds. Average Hg level in standard 560-mm northern pike, on a dry weight basis, was significantly higher in logged lakes (3.4 µg·g-1) than in reference lakes (1.9 µg·g-1). Average Hg concentrations in burned lakes (3.0 µg·g -1) did not differ significantly from those in logged and references lakes. Concentrations of Hg normalized to trophic position determined from isotopic composition yielded similar results. Mercury levels were above the WHO safe consumption limit in all logged lakes. Mercury in northern pike was correlated with methyl mercury in zooplankton (+), total N (+), pH (-), alkalinity (-), sulfate (+), dissolved organic C loading (+), and light attenuation in lake water (+). Stepwise multiple regressions explained 79% of the variability in Hg in fish and included methyl mercury in zooplankton, pH, and sulfate as independent variables. Explained variability increased to 92% when a second-order lake with an exceptionally large drainage area was excluded. Our results suggest that extensive logging activities may disrupt the natural cycling of Hg in watersheds and increase Hg levels in the aquatic biota.

Catchments affect growth rate of Northern Pike, Esox lucius, in subarctic lakes

2021 ◽  
Vol 83 (3) ◽  
Author(s):  
Mehdi Moslemi-Aqdam ◽  
George Low ◽  
Mike Low ◽  
Brian A. Branfireun ◽  
Heidi K. Swanson
Keyword(s):  
Growth Rate ◽  
Northern Pike ◽  
Esox Lucius ◽  
Subarctic Lakes ◽  
Pike Esox Lucius

Sex Ratios of Northern Pike, Esox lucius Linnaeus

1975 ◽  
Vol 104 (1) ◽  
pp. 60-63 ◽  
Author(s):  
John M. Casselman
Keyword(s):  
Sex Ratios ◽  
Northern Pike ◽  
Esox Lucius ◽  
Pike Esox Lucius

Temporal change estimation of mercury concentrations in northern pike (Esox lucius L.) in Swedish lakes

Chemosphere ◽  
2012 ◽  
Vol 86 (5) ◽  
pp. 439-445 ◽  
Author(s):  
Staffan Åkerblom ◽  
Mats Nilsson ◽  
Jun Yu ◽  
Bo Ranneby ◽  
Kjell Johansson
Keyword(s):  
Temporal Change ◽  
Northern Pike ◽  
Esox Lucius ◽  
Pike Esox Lucius

Effects of Liming on the Distribution of Cadmium in Water, Sediment, and Organisms in a Swedish Lake

1988 ◽  
Vol 45 (7) ◽  
pp. 1154-1162 ◽  
Author(s):  
Paul Andersson ◽  
Hans Borg
Keyword(s):  
Lake Water ◽  
Cadmium Concentration ◽  
Northern Pike ◽  
Esox Lucius ◽  
Suspended Particles ◽  
Fish Liver ◽  
Free Swimming ◽  
Pike Esox Lucius ◽  
Insect Larva ◽  
Before And After

We studied the cadmium concentrations in water, sediment, suspended particles, a free-swimming insect larva (Chaoborus), a sediment-bound insect larva (Chironomus), and liver of northern pike (Esox lucius) before and after liming operations in Lake Långsjön, Sweden. In accordance with the higher pH levels obtained in the lake water after the limings, cadmium concentration decreased in the water but increased in the sediment. Cadmium concentration in fish liver and Chironomus decreased after the limings whereas the concentration in Chaoborus larvae increased after the first liming. Possible mechanisms are discussed.

Short-term salinity tolerance of northern pike, Esox lucius, fry, related to temperature and size

2007 ◽  
Vol 14 (5) ◽  
pp. 303-308 ◽  
Author(s):  
L. JACOBSEN ◽  
C. SKOV ◽  
A. KOED ◽  
S. BERG
Keyword(s):  
Salinity Tolerance ◽  
Northern Pike ◽  
Esox Lucius ◽  
Short Term ◽  
Pike Esox Lucius

Individual specialization and trophic adaptability of northern pike ( Esox lucius ): an isotope and dietary analysis

Oecologia ◽  
1999 ◽  
Vol 120 (3) ◽  
pp. 386-396 ◽  
Author(s):  
Catherine P. Beaudoin ◽  
William M. Tonn ◽  
Ellie E. Prepas ◽  
Leonard I. Wassenaar
Keyword(s):  
Northern Pike ◽  
Esox Lucius ◽  
Dietary Analysis ◽  
Individual Specialization ◽  
Pike Esox Lucius

Catch‐related and genetic outcome of adult northern pike Esox lucius stocking in a large river system

2018 ◽  
Vol 93 (6) ◽  
pp. 1107-1112 ◽  
Author(s):  
Nicolas Guillerault ◽  
Géraldine Loot ◽  
Simon Blanchet ◽  
Frederic Santoul
Keyword(s):  
River System ◽  
Northern Pike ◽  
Esox Lucius ◽  
Large River ◽  
Pike Esox Lucius
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