Accumulation of Silver in Yellow Perch (Perca flavescens) and Northern Pike (Esox lucius) From a Lake Dosed with Nanosilver

2018 ◽  
Vol 52 (19) ◽  
pp. 11114-11122 ◽  
Author(s):  
Jonathan D. Martin ◽  
Paul C. Frost ◽  
Holger Hintelmann ◽  
Karla Newman ◽  
Michael J. Paterson ◽  
...  
Keyword(s):  
Yellow Perch ◽  
Perca Flavescens ◽  
Northern Pike ◽  
Esox Lucius ◽  
Pike Esox Lucius

Some Behavioral Interactions of Spottail Shiners (Notropis hudsonius), Yellow Perch (Perca flavescens), and Northern Pike (Esox lucius)

1973 ◽  
Vol 30 (8) ◽  
pp. 1161-1178 ◽  
Author(s):  
J. R. Nursall
Keyword(s):  
Yellow Perch ◽  
Perca Flavescens ◽  
Northern Pike ◽  
Esox Lucius ◽  
Behavioral Interactions ◽  
Change Of Direction ◽  
Pike Esox Lucius ◽  
Glide Path ◽  
Beaver Lake ◽  
Young Of The Year

Dense schools of spottail shiners (Notropis hudsonius) are common in shallow water in Beaver Lake, generally 0.25–0.30 m below the surface, with smaller individuals more numerous towards the top. Position in the shcool is maintained by short radius behavior. The course of an individual is maintained by a beat of the tail, a glide, a hesitation, and a change of direction. Each glide path represents the chord of an arc of short radius about some neighbor. Shiners respond to disturbance by flash expansion of loose cruising association. Schooling is obligatory. The black caudal spot is probaly multifunctional as a recognition mark and releaser.Yellow perch (Perca flavescens) show an ontogeny of behavior through young-of-the-year, aggregation-sized perch (aggp), subadults, and adults. They behave as individuals or associate as streams. Disturbance will cause a group of aggp to disperse or to stream. The adult manifestation of streaming is pack-hunting. The activity of one perch attracts the attention of others; this leads to streaming or pack-hunting. Pack-hunting improves the chance of some members of the pack, not necessarily the initiator, capturing active prey, by countering the allaesthetic protean escape reactions of organisms such as the spottail shiner. Large mixed aggregations of spottail shiners and aggp are fortuitous.Northern pike (Esox lucius) are lone, opportunistic predators whose hunting technique combines in sequence motionlessness, axial tracking, and lunging. Prey may be swallowed head- or tailfirst, or sideways.The species studied here show a range of gregariousness, from the solitary pike, through the facultative nonpolarized and polarized schools of perch, to obligate nonpolarized and polarized schools of shiners.

The English–Wabigoon River System: IV. Interaction between Mercury and Selenium Accumulated from Waterborne and Dietary Sources by Northern Pike (Esox lucius)

1983 ◽  
Vol 40 (12) ◽  
pp. 2241-2250 ◽  
Author(s):  
Michael A. Turner ◽  
Alison L. Swick
Keyword(s):  
Aquatic Ecosystems ◽  
Yellow Perch ◽  
Body Burden ◽  
Northern Pike ◽  
Esox Lucius ◽  
The Body ◽  
Mercury Accumulation ◽  
Water Control ◽  
Pike Esox Lucius ◽  
Mercury Intoxication

Although selenium is a pollutant released by several industries, it is also an essential nutrient that protects mammals against mercury intoxication. When added to aquatic ecosystems, selenium is bioaccumulated readily and can reduce mercury accumulation in some biota. Using a predator–prey experimental model, we investigated both the route of selenium uptake and the mechanism of reduction in mercury accumulation. Young northern pike (Esox lucius) and yellow perch (Perca flavescens) were caged in situ in mercury-contaminated Clay Lake, northwestern Ontario. Pike were held in water containing trace (< 0.2 μg Se/L) or elevated (4.5–6.4 μg Se/L) concentrations of selenium and were able to accumulate 203Hg and 75Se from food (yellow perch) only, water only, or from food and water. Control pike accumulated as much as 20 times more 73Se from food than from water, assimilating ~30% of selenium in food. With increased levels of selenium in water (around 5 μg Se/L), food and water were of similar importance as sources. Waterborne selenium did not alter either the amount of 203Hg accumulated from water or its subsequent partitioning among the pike tissues sampled. When elevated in food, selenium decreased both the body burden of 203Hg in pike and the proportion in muscle. It is inferred that selenium added to aquatic ecosystems, and incorporated subsequently in the food web, would interfere with biomagnification of mercury. Furthermore, future studies of selenium toxicity in fish should emphasize its accumulation from food.

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

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.

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