Results 11 to 20 of about 26,013 (270)

Diel feeding rhythm of copepod size-fractions from Coliumo Bay, Central Chile

open access: yesScientia Marina, 2001
The feeding behaviour of the size fractionated copepod assemblage was studied over a diel cycle in Coliumo Bay. In this shallow environment the photic layer reached the bottom and salinity, temperature, and food availability were fairly homogeneous ...
Danilo Calliari, Tarsicio Antezana
doaj   +4 more sources

Diel feeding chronology of six fish species in Anchuthengu backwater, Kerala [PDF]

open access: yes, 2007
The study examined diel feeding chronology of six fish species in Anchuthengu backwater, Kerala. Over the 24h period, more or less same items contributed to the diet of Arius arius. Mugil cephalus exhibited substantial diel variation in diet composition,
Rajukumar, B., Ritakumari, S.D.
core   +3 more sources

Predator Chemical Cue Effects on the Diel Feeding Behaviour of Marine Protists [PDF]

open access: yesMicrobial Ecology, 2021
We have assessed the effect of copepod chemical cues on the diel feeding rhythms of heterotrophic and mixotrophic marine protists. All phagotrophic protists studied exhibited relatively high diurnal feeding rates. The magnitude of the diel feeding rhythm, expressed as the quotient of day and night ingestion rates, was inversely related to the time that
Anna Arias   +3 more
openaire   +3 more sources

Diel feeding and respiration rhythms in zooplankton1 [PDF]

open access: yesLimnology and Oceanography, 1976
Diel rhythms in respiration and feeding of zooplankton from three British Columbia lakes were examined in laboratory experiments conducted at constant temperature and in the absence of light. Endogenous rhythms in respiration and feeding were demonstrated at temperatures from 10–22°C and were typically bimodal with maximum rates found at dawn and dusk ...
W. S. Duval, G. H. Geen
openaire   +1 more source

Blue whiting Micromesistius poutassou diel feeding behaviour in the Irminger Sea [PDF]

open access: yesMarine Ecology Progress Series, 2021
With warming ocean temperatures, the abundance of blue whiting Micromesistius poutassou is increasing in the waters around Greenland. However, in this region, knowledge about the species’ trophic role in the ecosystem is scarce. Consequently, we investigated the diet composition and diel feeding behaviour of blue whiting in the north-eastern part of ...
Post, Søren   +4 more
openaire   +2 more sources

Daily feeding rhythm linked to microbiome composition in two zooplankton species.

open access: yesPLoS ONE, 2022
Host-associated microbial communities are impacted by external and within-host factors, i.e., diet and feeding behavior. For organisms known to have a circadian rhythm in feeding behavior, microbiome composition is likely impacted by the different rates ...
Alaina Pfenning-Butterworth   +2 more
doaj   +1 more source

Oxygen minimum zone: An important oceanographic habitat for deep-diving northern elephant seals, Mirounga angustirostris. [PDF]

open access: yes, 2017
Little is known about the foraging behavior of top predators in the deep mesopelagic ocean. Elephant seals dive to the deep biota-poor oxygen minimum zone (OMZ) (>800 m depth) despite high diving costs in terms of energy and time, but how they ...
Adachi, Taiki   +6 more
core   +2 more sources

Diel feeding migrations in tropical reef fishes [PDF]

open access: yesHelgoländer Wissenschaftliche Meeresuntersuchungen, 1973
1. Many tropical reef fishes that feed during the day rest at night, whereas many that feed at night rest during the day. The feeding grounds of many are some distance from their resting grounds. Thus they migrate between these two locations during twilight as part of a general changeover between diurnal and nocturnal situations. 2.
openaire   +1 more source

Temporal changes in species richness and fish composition in a submerged vegetation habitat in Veracruz, Mexico [PDF]

open access: yesActa Ichthyologica et Piscatoria, 2017
Background. Because estuarine fish communities undergo temporal changes in abundance and species composition, the influence of environmental factors on diel and seasonal variation in the structure of a fish community was evaluated.
M. Castillo-Rivera   +2 more
doaj   +3 more sources

Differences in the trophic ecology of micronekton driven by diel vertical migration. [PDF]

open access: yes, 2019
Many species of micronekton perform diel vertical migrations (DVMs), which ultimately contributes to carbon export to the deep sea. However, not all micronekton species perform DVM, and the nonmigrators, which are often understudied, have different ...
Angel M. V.   +6 more
core   +1 more source

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