Some Quantitative Aspects Concerning the Trophic Role of the Nerve Cell

1968 ◽  
pp. 233-245 ◽  
Author(s):  
Marcus Singer
Keyword(s):  
Nerve Cell ◽  
Trophic Role

Trophic role of ambush-foraging hydromedusae in the White Sea

2013 ◽  
Vol 34 ◽  
pp. 153-164 ◽  
Author(s):  
Andrey A. Prudkovsky
Keyword(s):  
White Sea ◽  
The White Sea ◽  
Ambush Foraging ◽  
Trophic Role

scholarly journals Can heat waves change the trophic role of the world’s most invasive crayfish? Diet shifts in Procambarus clarkii

PLoS ONE ◽  
2017 ◽  
Vol 12 (9) ◽  
pp. e0183108 ◽  
Author(s):  
Bruno M. Carreira ◽  
Pedro Segurado ◽  
Anssi Laurila ◽  
Rui Rebelo
Keyword(s):  
Procambarus Clarkii ◽  
Heat Waves ◽  
Invasive Crayfish ◽  
Diet Shifts ◽  
Trophic Role

scholarly journals Temporal fluctuations in the trophic role of large benthic sulfur bacteria in mangrove sediment

Food Webs ◽  
2016 ◽  
Vol 7 ◽  
pp. 20-28 ◽  
Author(s):  
Pierre-Yves Pascal ◽  
Olivier Gros ◽  
Henricus T.S. Boschker
Keyword(s):  
Mangrove Sediment ◽  
Temporal Fluctuations ◽  
Sulfur Bacteria ◽  
Trophic Role

scholarly journals Modulation of Nerve Cell Differentiation: Role of Polyphenols and of Contactin Family Components

2019 ◽  
Vol 7 ◽  
Author(s):  
Sabrina Picocci ◽  
Antonella Bizzoca ◽  
Patrizia Corsi ◽  
Thea Magrone ◽  
Emilio Jirillo ◽  
...  
Keyword(s):  
Cell Differentiation ◽  
Nerve Cell ◽  
Nerve Cell Differentiation

scholarly journals The freshwater mysid Mysis diluviana (Audzijonyte & Väinölä, 2005) (Mysida: Mysidae) consumes detritus in the presence of Daphnia (Cladocera: Daphniidae)

2020 ◽  
Vol 40 (5) ◽  
pp. 520-525
Author(s):  
Jessica E Griffin ◽  
Brian P O’Malley ◽  
Jason D Stockwell
Keyword(s):  
Food Resources ◽  
Trophic Levels ◽  
Arctic Lakes ◽  
Mysis Relicta ◽  
Combination Treatments ◽  
Mysis Diluviana ◽  
Benthic Food ◽  
Benthic Resources ◽  
Trophic Role

Abstract Freshwater mysids of the Mysis relicta group are omnivorous macroinvertebrates that form an important link between fishes and lower trophic levels in many north temperate to Arctic lakes, where they exhibit diel vertical migration (DVM) to exploit subsurface food-rich layers at night. Benthic food resources have been assumed to be less important for mysid diets than pelagic zooplankton. Studies have nevertheless indicated that mysids consume benthic sedimented detritus, calling this assumption into question. We conducted a food-choice experiment to evaluate the feeding preferences of Mysis diluviana (Audzijonyte & Väinölä, 2005) by presenting field-caught specimens in individual foraging arenas with multiple choices of food. Experimental food treatments included a preferred pelagic prey (Daphnia), a presumed less desirable benthic resource (detritus), and a combination of both. We hypothesized that M. diluviana 1) prefers Daphnia over detritus and consumes only Daphnia in combination treatments, and 2) would not consume detritus except when detritus was the only food source available. Contrary to our hypothesis, M. diluviana readily consumed detritus in the presence of Daphnia. Mysis diluviana unexpectedly consumed more individuals of Daphnia in the presence rather than in the absence of detritus. Our results demonstrate that mysids take advantage of benthic food resources even in the presence of a presumably preferred zooplankton prey, calling to question the long-held assumption that benthic resources are unimportant when considering the trophic role of freshwater mysids of the M. relicta group.

The functional trophic role of whale shark (Rhincodon typus) in the northern Mexican Caribbean: network analysis and ecosystem development

Hydrobiologia ◽  
2016 ◽  
Vol 792 (1) ◽  
pp. 121-135 ◽  
Author(s):  
Esmeralda C. Ibarra-García ◽  
Marco Ortiz ◽  
Eduardo Ríos-Jara ◽  
Amílcar L. Cupul-Magaña ◽  
Álvaro Hernández-Flores ◽  
...  
Keyword(s):  
Network Analysis ◽  
Ecosystem Development ◽  
Whale Shark ◽  
Rhincodon Typus ◽  
Mexican Caribbean ◽  
Trophic Role

Marine Pelagic Ciliates and Their Productivity During Summer in Plymouth Coastal Waters

1992 ◽  
Vol 72 (1) ◽  
pp. 265-268 ◽  
Author(s):  
E. D. Pilling ◽  
R. J. G. Leakey ◽  
P. H. Burkill
Keyword(s):  
Surface Waters ◽  
Coastal Waters ◽  
Food Resource ◽  
Water Bottle ◽  
Ecological Role ◽  
Ciliate Community ◽  
June July ◽  
Present Pilot Study ◽  
Trophic Role

The ciliate list for Plymouth waters has been extended by 14 species using modern taxonomic techniques. Ciliates were abundant in the plankton where they formed a significant food resource. Their community biomass and production was estimated to average 12 µ C 1 and 9 µ C 1 respectively during the summer. The ciliate community was dominated by a diverse assemblage of aloricate choreotrichs, suggesting a complex trophic role for this protozoan group.Ciliate protozoans are ubiquitous and often abundant in marine waters where they are frequently considered to play an important ecological role in trophic flux and nutrient cycling within the plankton (Fenchel, 1987). In spite of this, however, their ecological role in British coastal waters is poorly understood. In Plymouth waters, for instance, there has been only one previous study of marine pelagic Protozoa (Lackey & Lackey, 1963), despite the presence of a marine laboratory in the region for over 100 years. As the study by Lackey & Lackey (1963) focused solely upon the taxonomy of local protists, the ecological role of protozoans in Plymouth waters is unknown. To redress this anomaly the present pilot study was undertaken in Plymouth waters with the following objectives: to identify the dominant ciliates from this region using techniques unavailable to Lackey & Lackey (1963), to quantify ciliate abundance and cell sizes, and to estimate their biomass and production.Triplicate water samples were collected, using a 3-litre water bottle, from surface waters at each of four stations along a 20-km transect between Plymouth Sound (50°21'N 04°09'W) and the Eddystone Rock (50°ll'N 04°16'W) during June, July and August 1988.

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