Results 61 to 70 of about 2,376 (198)
Preliminary results of the pilot study of the zooplankton in the region between the Ross and Scotia Seas from November 2017 to April 2018 are presented. In total, 53 zooplankton samples were collected in the top 100 m water layer using vertical tows of a
Evgeny A. Pakhomov +5 more
doaj +1 more source
Turbulence and hypoxia contribute to dense biological scattering layers in a Patagonian fjord system [PDF]
The aggregation of plankton species along fjords can be linked to physical properties and processes such as stratification, turbulence and oxygen concentration.
I. Pérez-Santos +17 more
doaj +1 more source
Predation Strategies of the Portuguese Man‐of‐War Physalia physalis
ABSTRACT The Portuguese man‐of‐war Physalia physalis is widely known for causing poisoning on human beings. Physalia physalis is mostly described as a predator of fish eggs and larvae. Here, we report for the first time that large fish can also be preyed by P. physalis.
Jorge L. S. Nunes +8 more
wiley +1 more source
Fluorescence patterns and diversity of hydrozoans from Bocas del Toro, Panama
Many metazoans contain molecules capable of fluorescence, the absorption and re-emission of light. Since the anatomical distribution, or patterning, of these molecules is variable across taxa, patterns of fluorescence may serve as a powerful diagnostic ...
Lara M Beckmann +5 more
doaj +1 more source
Chemotaxis of Arbacia punctulata spermatozoa to resact, a peptide from the egg jelly layer [PDF]
Resact, a peptide of known sequence isolated from the jelly layer of Arbacia punctulata eggs, is a potent chemoattractant for A. punctulata spermatozoa. The chemotactic response is concentration dependent, is abolished by pretreatment of the spermatozoa ...
Brokaw, Charles J. +3 more
core +3 more sources
Abstract Particulate organic matter supports pelagic food webs, and the activity of these food webs attenuates the flux of carbon into the ocean interior. Understanding the extent to which microbial and metazoan heterotrophs influence particle dynamics is essential to describing the biological carbon pump and nutrient delivery to deep ecosystems.
S. C. Doherty +3 more
wiley +1 more source
Two New Calycophorae, Siphonophorae [PDF]
Volume: 22Start Page: 340End Page ...
Alvarino, Angeles
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Mortality of Calanus helgolandicus: Sources, differences between the sexes and consumptive and nonconsumptive processes [PDF]
While losses from mortality are as important as gains from reproduction in zooplankton population dynamics, the former are more challenging to quantify.
Atkinson, A +4 more
core +2 more sources
Visual information in the dark: Bioluminescence and perceptual design through evolution
Read the free Plain Language Summary for this article on the Journal blog. Abstract Bioluminescence offers a powerful framework for understanding how organisms evolve to shape visual information in diverse ways. Complementing studies of colour, transparency and pattern in illuminated environments, bioluminescent systems instead rely on generated light,
Todd H. Oakley
wiley +1 more source
Archangelopsis jagoa, a new species of benthic siphonophore (Physonectae, Rhodaliidae) collected by submersible in the Red Sea [PDF]
A new species of rhodaliid siphonophore, Archangelopsis jagoa sp, nov., is described from three specimens collected at depths between 250 and 370 m in the Gulf of Akaba, Red Sea, by the submersible JAGO.
Hissmann, Karen +2 more
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