scholarly journals Effects of temperature and trematode infection on the foraging behaviour of their snail hosts

2021 ◽  
Author(s):  
Timothy R. Smith ◽  
Janet Koprivnikar
Keyword(s):  
Foraging Behaviour ◽  
Trematode Infection ◽  
Effects Of Temperature ◽  
Trematode Infections

Hypothesis – Snails with trematode infections and exposure to increased temperatures will show greater preference for antioxidant-rich foods

scholarly journals Effects of temperature and trematode infection on the foraging behaviour of their snail hosts

2021 ◽  
Author(s):  
Timothy R. Smith ◽  
Janet Koprivnikar
Keyword(s):  
Foraging Behaviour ◽  
Trematode Infection ◽  
Effects Of Temperature ◽  
Trematode Infections

Hypothesis – Snails with trematode infections and exposure to increased temperatures will show greater preference for antioxidant-rich foods

Larval trematodes in freshwater snails at the Ross River Reservoir, northern Australia, with emphasis on Trichobilharzia sp(p)., causative agents of swimmer's itch

1994 ◽  
Vol 45 (4) ◽  
pp. 563 ◽  
Author(s):  
M Hurley ◽  
MN Hearnden ◽  
D Blair ◽  
BH Kay
Keyword(s):  
Freshwater Snails ◽  
Northern Australia ◽  
Intermediate Hosts ◽  
Trematode Infection ◽  
River Reservoir ◽  
Swimmer’S Itch ◽  
Causative Agents ◽  
Swimmer's Itch ◽  
Trematode Infections ◽  
Prosobranch Snail

Prevalence of trematode cercariae within freshwater snails at the Ross River reservoir is presented, with special attention to Trichobilharzia sp(p). (Digenea:Schistosomatidae), known causative agents of schistosome dermatitis. Three pulmonate snails-a lymnaeid, Austropeplea lessoni, and two planorbids, Gyraulus gilberti and Amerianna carinata-and one prosobranch snail, Thiara balonnensis, were common in the reservoir. These snails were infected with trematode cercariae representing six different families. Both Austropeplea lessoni (4.5%) and G. gilberti (1.8%) act as intermediate hosts of Trichobilharzia sp(p). Trematode infection levels increased as snail size increased. The implication for surveillance techniques is that only the larger snails (A. lessoni > 10 mm, G. gilberti > 3 mm and Amerianna carinata >6 mm) require dissection to determine the prevalence of trematode infections.

Influence of intrinsic variation on foraging behaviour of adult female Australian fur seals

2015 ◽  
Vol 526 ◽  
pp. 227-239 ◽  
Author(s):  
AJ Hoskins ◽  
DP Costa ◽  
KE Wheatley ◽  
JR Gibbens ◽  
JPY Arnould
Keyword(s):  
Adult Female ◽  
Foraging Behaviour ◽  
Fur Seals

Joint additive effects of temperature and UVB radiation on zoeae of the crab Taliepus dentatus

2016 ◽  
Vol 550 ◽  
pp. 135-145 ◽  
Author(s):  
B Carreja ◽  
M Fernández ◽  
S Agustí
Keyword(s):  
Additive Effects ◽  
Uvb Radiation ◽  
Effects Of Temperature

Effects of temperature on life history set the sensitivity to fishing in Atlantic cod Gadus morhua

2014 ◽  
Vol 514 ◽  
pp. 217-229 ◽  
Author(s):  
HY Wang ◽  
LW Botsford ◽  
JW White ◽  
MJ Fogarty ◽  
F Juanes ◽  
...  
Keyword(s):  
Life History ◽  
Gadus Morhua ◽  
Atlantic Cod ◽  
Effects Of Temperature

Relationships between temperature and Pacific hake distribution vary across latitude and life-history stage

2020 ◽  
Vol 639 ◽  
pp. 185-197 ◽  
Author(s):  
MJ Malick ◽  
ME Hunsicker ◽  
MA Haltuch ◽  
SL Parker-Stetter ◽  
AM Berger ◽  
...  
Keyword(s):  
Life History ◽  
Environmental Effects ◽  
Environmental Conditions ◽  
Vancouver Island ◽  
Additive Models ◽  
Life History Stage ◽  
Fish Stocks ◽  
Merluccius Productus ◽  
Multiple Dimensions ◽  
Effects Of Temperature

Environmental conditions can have spatially complex effects on the dynamics of marine fish stocks that change across life-history stages. Yet the potential for non-stationary environmental effects across multiple dimensions, e.g. space and ontogeny, are rarely considered. In this study, we examined the evidence for spatial and ontogenetic non-stationary temperature effects on Pacific hake Merluccius productus biomass along the west coast of North America. Specifically, we used Bayesian additive models to estimate the effects of temperature on Pacific hake biomass distribution and whether the effects change across space or life-history stage. We found latitudinal differences in the effects of temperature on mature Pacific hake distribution (i.e. age 3 and older); warmer than average subsurface temperatures were associated with higher biomass north of Vancouver Island, but lower biomass offshore of Washington and southern Vancouver Island. In contrast, immature Pacific hake distribution (i.e. age 2) was better explained by a nonlinear temperature effect; cooler than average temperatures were associated with higher biomass coastwide. Together, our results suggest that Pacific hake distribution is driven by interactions between age composition and environmental conditions and highlight the importance of accounting for varying environmental effects across multiple dimensions.

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