scholarly journals Foraging mode and prey size spectra of suspension‑feeding copepods and other zooplankton

2016 ◽  
Vol 558 ◽  
pp. 15-20 ◽  
Author(s):  
T Kiørboe
Keyword(s):  
Prey Size ◽  
Suspension Feeding ◽  
Foraging Mode ◽  
Size Spectra

Carnivorous Suspension Feeding by the Subarctic Calanoid Copepod Neocalanus cristatus

1988 ◽  
Vol 45 (6) ◽  
pp. 1069-1074 ◽  
Author(s):  
Charles H. Greene ◽  
Michael R. Landry
Keyword(s):  
Calanoid Copepod ◽  
Prey Size ◽  
Prey Selection ◽  
Suspension Feeding ◽  
Calanoid Copepods ◽  
Pelagic Ecosystem ◽  
Foraging Mode ◽  
Feeding Experiments ◽  
Feeding Modes

Carnivorous suspension feeding is described for the large subarctic calanoid copepod Neocalanus cristatus. This foraging mode relies on the use of a feeding current to entrain potential prey items and transport them into the copepod's capture area. The extensive use of a feeding current to entrain and transport prey into the capture area distinguishes carnivorous suspension feeding from the predatory modes typically described for other calanoid copepods. The consequences of carnivorous suspension feeding on N. cristatus' prey-selection patterns are significant. Feeding experiments reveal that the vulnerability of naupliar prey declines with increasing prey size, just the opposite result observed for other marine calanoids exhibiting more typical predatory feeding modes. The role of omnivorous feeding by N. cristatus within the pelagic ecosystem of the subarctic Pacific is also discussed. In contrast with earlier hypotheses, the results reported here are consistent with the emerging view that this large suspension-feeding copepod may be having at least as great an impact on the microzooplankton as on the phytoplankton of the region.

scholarly journals Changes in foraging mode caused by a decline in prey size have major bioenergetic consequences for a small pelagic fish

2021 ◽  
Author(s):  
Elisa Thoral ◽  
Quentin Queiros ◽  
Damien Roussel ◽  
Gilbert Dutto ◽  
Eric Gasset ◽  
...  
Keyword(s):  
Prey Size ◽  
Pelagic Fish ◽  
Small Pelagic Fish ◽  
Foraging Mode

scholarly journals Estimating the Food Requirements and Prey Size Spectra of Larval American Shad

2012 ◽  
Vol 4 (1) ◽  
pp. 228-238 ◽  
Author(s):  
Kenneth L. Riley ◽  
Samantha M. Binion ◽  
Anthony S. Overton
Keyword(s):  
Prey Size ◽  
American Shad ◽  
Size Spectra

scholarly journals Running the gauntlet: the predation environment of small fish in the northern Gulf of St Lawrence, Canada

2005 ◽  
Vol 62 (3) ◽  
pp. 412-416 ◽  
Author(s):  
Daniel E. Duplisea
Keyword(s):  
Body Size ◽  
North Sea ◽  
Prey Size ◽  
Small Fish ◽  
Size Spectra ◽  
Predator Prey ◽  
The North ◽  
Prefer Prey ◽  
Seal Population ◽  
The North Sea

Abstract Predation size spectra were constructed for the northern Gulf of St Lawrence, covering prey size ranges that include pre-recruit cod. Predation by fish and harp seals was modelled with a log-normally distributed predator–prey size ratio along with a relationship between predator body size and the energy required. Fish concentrate predation on prey of weight 0.5–2 g, whereas harp seals prefer prey of 60–125 g. It is speculated that predation caused by harp seals on pre-recruits could be a major factor limiting cod recruitment in the system. The northern Gulf of St Lawrence is a cold boreal system with a large predatory seal population, and cod recruit older than elsewhere. Therefore, cod recruitment may be more strongly affected by predation in the northern Gulf of St Lawrence than in warmer systems such as the North Sea, where recruitment is strongly influenced by temperature.

Foraging mode, relative prey size and diet breadth: A phylogenetically explicit analysis of snake feeding ecology

2019 ◽  
Vol 88 (5) ◽  
pp. 757-767 ◽  
Author(s):  
Xavier Glaudas ◽  
Kelsey L. Glennon ◽  
Marcio Martins ◽  
Luca Luiselli ◽  
Simon Fearn ◽  
...  
Keyword(s):  
Feeding Ecology ◽  
Prey Size ◽  
Diet Breadth ◽  
Foraging Mode ◽  
Explicit Analysis

scholarly journals Mechanisms of prey size selection in a suspension-feeding copepod, Temora longicornis

2014 ◽  
Vol 517 ◽  
pp. 61-74 ◽  
Author(s):  
RJ Gonçalves ◽  
H van Someren Gréve ◽  
D Couespel ◽  
T Kiørboe
Keyword(s):  
Prey Size ◽  
Suspension Feeding ◽  
Size Selection ◽  
Temora Longicornis
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