Lake acidity, fish predation, and the distribution and abundance of some littoral insects

Hydrobiologia ◽  
1995 ◽  
Vol 302 (2) ◽  
pp. 133-145 ◽  
Author(s):  
Barry E. Bendell ◽  
Donald K. McNicol
Keyword(s):  
Fish Predation ◽  
Lake Acidity

Fish predation, lake acidity and the composition of aquatic insect assemblages

Hydrobiologia ◽  
1987 ◽  
Vol 150 (3) ◽  
pp. 193-202 ◽  
Author(s):  
Barry E. Bendell ◽  
Donald K. McNicol
Keyword(s):  
Aquatic Insect ◽  
Fish Predation ◽  
Lake Acidity

Freshwater snail responses to fish predation integrate phenotypic plasticity and local adaptation

2020 ◽  
Vol 54 (1) ◽  
pp. 309-322 ◽  
Author(s):  
Scott R. Goeppner ◽  
Maggie E. Roberts ◽  
Lynne E. Beaty ◽  
Barney Luttbeg
Keyword(s):  
Phenotypic Plasticity ◽  
Local Adaptation ◽  
Fish Predation ◽  
Freshwater Snail

scholarly journals Benthic Productivity as Influenced by Fish Predation*

1956 ◽  
Vol 1 (3) ◽  
pp. 162-175 ◽  
Author(s):  
DON W. HAYNE ◽  
ROBERT C. BALL
Keyword(s):  
Fish Predation ◽  
Benthic Productivity

Male-biased sex ratio in Argulus canadensis Wilson, 1916 (Crustacea: Branchiura) ectoparasitic on sticklebacks

1989 ◽  
Vol 67 (8) ◽  
pp. 2078-2080 ◽  
Author(s):  
Robert Poulin ◽  
Gerard J. FitzGerald
Keyword(s):  
Salt Marsh ◽  
Sex Ratio ◽  
Laboratory Experiments ◽  
Fish Predation ◽  
Reproductive Behaviour ◽  
Egg Deposition ◽  
Alternative Hypotheses ◽  
Biased Sex Ratio ◽  
The Difference ◽  
Fish Hosts

Females of the ectoparasitic crustacean Argulus canadensis must leave their fish hosts at least temporarily to deposit their eggs on the substrate. To test the hypothesis that this difference in reproductive behaviour between the two sexes could result in male-biased sex ratios on their stickleback hosts, we sampled sticklebacks in tide pools of a Quebec salt marsh from early July to early September 1986. During this period, fish harboured significantly more male than female A. canadensis. Laboratory experiments were done to test two alternative hypotheses offered to explain this biased sex ratio. The first hypothesis was that male A. canadensis were more successful than females in attacking their stickleback hosts; however, we found no differences in attack success on their hosts between the two parasite sexes. The second hypothesis was that sticklebacks ate more female than male A. canadensis. Although males were less vulnerable to fish predation than females, the difference was not significant. We conclude that sexual differences in reproductive behaviour, i.e., egg deposition behaviour of females, can account for the male-biased sex ratio of A. canadensis on sticklebacks.

Individual and combined effects of fish predation and bed disturbance on stream benthic communities: a streamside channel experiment

2012 ◽  
Vol 57 (12) ◽  
pp. 2487-2503 ◽  
Author(s):  
PETER B. HERRMANN ◽  
COLIN R. TOWNSEND ◽  
CHRISTOPH D. MATTHAEI
Keyword(s):  
Benthic Communities ◽  
Fish Predation ◽  
Combined Effects

Size Composition of Invertebrate Drift and Fish Predation in a Texas Stream

1988 ◽  
Vol 33 (2) ◽  
pp. 177 ◽  
Author(s):  
David E. Bowles ◽  
Robert A. Short
Keyword(s):  
Size Composition ◽  
Fish Predation ◽  
Invertebrate Drift

Intensive trapping and increased fish predation cause massive population decline of an invasive crayfish

2007 ◽  
Vol 52 (6) ◽  
pp. 1134-1146 ◽  
Author(s):  
CATHERINE L. HEIN ◽  
M. JAKE VANDER ZANDEN ◽  
JOHN J. MAGNUSON
Keyword(s):  
Population Decline ◽  
Fish Predation ◽  
Invasive Crayfish

Limnetic Zooplankton Assemblages in Atlantic Canada with Special Reference to Acidification

1986 ◽  
Vol 43 (2) ◽  
pp. 444-456 ◽  
Author(s):  
J. C. H. Carter ◽  
W. D. Taylor ◽  
R. Chengalath ◽  
D. A. Scruton
Keyword(s):  
Nova Scotia ◽  
New Brunswick ◽  
Fish Predation ◽  
Low Ph ◽  
Buffering Capacity ◽  
The Other ◽  
Bay Of Fundy ◽  
Factor Scores ◽  
Multiple Discriminant Analysis ◽  
Biological Factors

Crustacean and rotifer plankton assemblages of 93 lakes in Labrador, 107 in Newfoundland, and 142 in New Brunswick – Nova Scotia were investigated for evidence of correlations with lake morphometric, chemical, or biological factors. Labrador assemblages were almost completely lacking in identifiable structure. Newfoundland species clustered into two groups of different body size, suggesting the influence of fish predation. Only one species in Labrador and Newfoundland was significantly correlated with a derived factor related to lake water buffering capacity. New Brunswick – Nova Scotia species clustered into two groups, one featuring significant positive and the other significant negative correlations with the buffering factor. From this we conclude that acidification is having an impact on the limnetic zooplankton of these two provinces. Multiple discriminant analysis was used to demonstrate that New Brunswick – Nova Scotia lakes differing in their buffering capacity were also distinct in zooplankton composition. Lakes with low factor scores (low pH, alkalinity, and calcium) were mainly located in the Bay of Fundy region; this area has above average fog and precipitation, and lies within the summer air flow carrying pollutants from the south.

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