Results 41 to 50 of about 15,828 (201)

Diel vertical migration and distribution of zooplankton in a tropical Brazilian reservoir [PDF]

Biotemas, 2009
Diel vertical migration of zooplankton is a strategy usually employed to reduce the risk of predation, and it can also be associated with the environmental day/night shifts, particularly of light and temperature. The aim of this study was to identify the
Ana M. A. da Silva, José E. L. Barbosa, Paulo Roberto de Medeiros, Maria C. B. C. da Silva   +3 more
doaj  

Diurnal vertical movements in black sea bass (Centropristis striata): Endogenous, facultative, or something else?

Ecosphere, 2021
Fishes commonly exhibit diel rhythms in movements with consequences to feeding, reproduction, predator evasion, and resting. Such behaviors are conceived as plastic, persisting for phases (days to weeks), and then becoming disrupted, masked, and altered ...
D. H. Secor, H. Bailey, A. Carroll, V. Lyubchich, M. H. P. O’Brien, C. J. Wiernicki   +5 more
doaj   +1 more source

Diel vertical migration and spatial overlap between fish larvae and zooplankton in two tropical lakes, Brazil

Brazilian Journal of Biology
The effect of fish larvae on the diel vertical migration of the zooplankton community was investigated in two tropical lakes, Finado Raimundo and Pintado lakes, Mato Grosso do Sul State, Brazil.
PHS. Picapedra, FA. Lansac-Tôha, A. Bialetzki   +2 more
doaj   +1 more source

Mesozooplankton biodiversity, vertical assemblages, and diel migration in the western tropical Pacific Ocean revealed by eDNA metabarcoding and morphological methods

Frontiers in Marine Science, 2022
Zooplankton plays a crucial role in marine ecosystems. However, due to issues with morphological identification and sampling methods, knowledge of their biodiversity and community structure in the vast pelagic zone of the western tropical Pacific Ocean ...
Yunzhi Feng, Yunzhi Feng, Dong Sun, Dong Sun, Qianwen Shao, Qianwen Shao, Chen Fang, Chen Fang, Chunsheng Wang, Chunsheng Wang, Chunsheng Wang   +10 more
doaj   +1 more source

Acoustic behavior of melon-headed whales varies on a diel cycle. [PDF]

, 2015
Many terrestrial and marine species have a diel activity pattern, and their acoustic signaling follows their current behavioral state. Whistles and echolocation clicks on long-term recordings produced by melon-headed whales (Peponocephala electra) at ...
Baumann-Pickering, Simone, Hildebrand, John A, Roch, Marie A, Schnitzler, Hans-Ulrich, Wiggins, Sean M   +4 more
core   +2 more sources

Short-term variations of the vertical distribution of cyanobacteria in the open Mediterranean Sea

Scientia Marina, 2000
A general study of biogeochemical processes (DYNAPROC cruise, May 1995) was conducted at a station in the open northwestern Mediterranean Sea where horizontal advection was weak.
Michel Denis, Valérie Martin, Valérie Andersen   +2 more
doaj   +1 more source

A Preliminary Study of Suspended Matters Variation Associated with Hypoxia and Shoaling Internal Tides on the Continental Shelf of the Northern Andaman Sea

Journal of Marine Science and Engineering, 2023
The northern Andaman Sea (AS) continental shelf is unique due to the diverse marine ecosystem and existences of both hypoxia and internal tides, but limited in situ observations restrict our understanding of the hydrographic dynamic process. Based on the
Feilong Lin, Chujin Liang, Tao Ding, Dingyong Zeng, Feng Zhou, Xiao Ma, Chenghao Yang, Hongliang Li, Beifeng Zhou, Chenggang Liu, Weifang Jin   +10 more
doaj   +1 more source

Migrations and habitat use of the smooth hammerhead shark (Sphyrna zygaena) in the Atlantic Ocean [PDF]

, 2018
The smooth hammerhead shark, Sphyrna zygaena, is a cosmopolitan semipelagic shark captured as bycatch in pelagic oceanic fisheries, especially pelagic longlines targeting swordfish and/or tunas.
AP Klimley, Bass AJ, BFJ Manly, Catarina C. Santos, CH Lam, D Rosa, DA Teets, DB Olson, DM Knip, E Cortés, E Cortés, ER Hoffmayer, F Mas, F Poisson, FG Carey, FJ Abascal, FJ Abascal, GC Hays, George Tserpes, H Dewar, H Levene, H Wickham, HW Lilliefors, J Fox, JA Musick, JD Stevens, JD Stevens, KM Diemer, LA Howey-Jordan, MD Camhi, MK Musyl, MK Musyl, MK Musyl, ML Domeier, MP Fay, MP Francis, MR Heithaus, MW Beck, N Hammerschlag, N Queiroz, N Queiroz, R Coelho, R Coelho, R Hilborn, RA Myers, Rui Coelho, S Bessudo, SC Clarke, SG Wilson, SJ Jorgensen, SL Petersen, V Buencuerpo   +51 more
core   +2 more sources

Temporal patterns in acoustic presence and foraging activity of oceanic dolphins at seamounts in the Azores [PDF]

, 2020
© The Author(s), 2020. This article is distributed under the terms of the Creative Commons Attribution License. The definitive version was published in Cascao, I., Lammers, M. O., Prieto, R., Santos, R. S., & Silva, M. A.
Cascão, Irma, Lammers, Marc O., Prieto, Rui, Santos, Ricardo S., Silva, Monica A.   +4 more
core   +1 more source

Enhancement of anammox by the excretion of diel vertical migrators [PDF]

Proceedings of the National Academy of Sciences, 2014
Significance Nitrogen, the limiting nutrient for primary production across much of the ocean, is converted to biologically inactive N 2 by denitrification and anaerobic ammonium oxidation (anammox) in anoxic waters.
Daniele, Bianchi, Andrew R, Babbin, Eric D, Galbraith   +2 more
openaire   +2 more sources