Results 41 to 50 of about 10,224 (211)

The IceShark, an effective method for sampling plankton under sea ice

open access: yesLimnology and Oceanography: Methods, Volume 24, Issue 4, April 2026.
Abstract Seasonal sea ice plays a crucial role in shaping coastal ecosystem dynamics throughout the circumpolar region. Of particular interest to oceanographers is the ice‐ocean interface which functions as a multidimensional habitat, supporting both sympagic algae and pelagic phytoplankton in the under‐ice surface waters.
Eleanor A. Barry   +4 more
wiley   +1 more source

Validation of daily growth increments and estimation of growth rates of larval and early juvenile black skipjack, Euthynnus lineatus, using otoliths [PDF]

open access: yes, 1993
ENGLISH: Increments in otoliths (sagittae) were examined, using light and scanning electron microscopy, to determine ages and estimate growth rates of larval and early-juvenile black skipjack, Euthynnus lineatus.
Wexler, Jeanne B.
core  

Overview of Advanced LIGO Adaptive Optics

open access: yes, 2016
This is an overview of the adaptive optics used in Advanced LIGO (aLIGO), known as the thermal compensation system (TCS). The thermal compensation system was designed to minimize thermally-induced spatial distortions in the interferometer optical modes ...
Abbott, Benjamin   +25 more
core   +1 more source

Optical contamination screening of materials with a high-finesse Fabry-Perot cavity resonated continuously at 1.06-µm wavelength in vacuum [PDF]

open access: yes, 1999
An optical-loss measurement system based on a resonant Fabry Perot cavity at 1.06µm in vacuum has been developed for independent monitoring of the cavity total loss and the optical absorption loss.
Camp, Jordan, Coyne, Dennis, Li, Daqun
core   +1 more source

New light on UU Sagittae * [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 1993
New V and I band CCD photometry and medium resolution spectroscopy are used to derive the masses, luminosities and radii accurate to < 10% for the individual components of the eclipsing central star of the planetary nebula A63–UU Sge (M1 = 0.63 ± 0.06M⊙, R1 = 0.33 ± 0.01R⊙, M2 = 0.29 ± 0.04M⊙ and R2 = 0.53 ± 0.002R⊙).
S.A. Bell, D.L. Pollacco
openaire   +2 more sources

Adapting the growth‐form concept to geniculate coralline algae (Corallinales, Rhodophyta)

open access: yesJournal of Phycology, Volume 62, Issue 2, Page 512-532, April 2026.
Abstract Geniculate coralline algae (Corallinales, Rhodophyta) are a diverse group of calcifying macroalgae, loosely united by flexible upright axes formed by alternating calcified (intergenicula) and uncalcified segments (genicula), a trait that has independently arisen several times.
Jakop Schwoerbel   +18 more
wiley   +1 more source

No evidence for an early seventeenth-century Indian sighting of Keplers supernova (SN1604) [PDF]

open access: yes, 2012
In a recent paper Sule et al. (Astronomical Notes, vol. 332 (2011), 655) argued that an early 17th-century Indian mural of the constellation Sagittarius with a dragon-headed tail indicated that the bright supernova of 1604 was also sighted by Indian ...
van Gent, Robert H.
core   +1 more source

Dipus sagitta

open access: yes, 1982
Dipus sagitta (Pallas, 1773). Reise Prov. Russ. Reichs., 2:706. TYPE LOCALITY: U.S. S. R., N. Kazakhstan, Pavlodarsk. Obi., right bank of Irtysh River near Yamyshevskaya at Podpusknoi. DISTRIBUTION: Desert, steppe and dry woodland from Don River and N.W. coast of Caspian Sea to Shensi and N. E. China. ISIS NUMBER: 5301410016003001001.
Honacki, James H.   +2 more
openaire   +1 more source

Growth Autocorrelation in Atlantic Bluefin Tuna Thunnus thynnus Larvae in the Northwest Mediterranean and the Gulf of Mexico

open access: yesFisheries Oceanography, Volume 35, Issue 2, Page 297-305, March 2026.
ABSTRACT Growth and survival rates during the early life stages are key vital parameters driving population dynamics of fish. Growth rates generally present a pattern of autocorrelation. Growth autocorrelation is stronger when faster and slower growing individuals continue to grow faster and slower.
José María Quintanilla   +6 more
wiley   +1 more source

Otolith atlas for the western Mediterranean, north and central eastern Atlantic

open access: yesScientia Marina, 2008
The sagittal otolith of 348 species, belonging to 99 families and 22 orders of marine Teleostean fishes from the north and central eastern Atlantic and western Mediterranean were described using morphological and morphometric characters.
Victor M. Tuset   +2 more
doaj   +1 more source

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