Results 51 to 60 of about 1,745 (173)

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

Phylogenetic and ecological duality in the otoliths of Sciaenidae

open access: yesCladistics, EarlyView.
Abstract Teleost fishes have evolved taxon‐specific otoliths that vary greatly in size and shape and are primarily involved in hearing and balance. This study identifies the main drivers of otolith shape disparity in Sciaenidae, a clade of sound‐producing bony fishes, using three‐dimensional geometric morphometrics (3DGM).
Dominique Mediodia   +3 more
wiley   +1 more source

Oxytetracycline as an otolith chemical marker in Atlantic bluefin tuna (Thunnus thynnus): Technical feasibility in culture

open access: yesJournal of Fish Biology, EarlyView.
Abstract Reliable discrimination between wild and cultured fish is essential for traceability in aquaculture. This study reports the first successful application of intramuscular oxytetracycline (OTC) injection for otolith marking in juveniles of Atlantic bluefin tuna (Thunnus thynnus).
Inma Salvat‐Leal   +3 more
wiley   +1 more source

The 2001 Superoutburst of WZ Sagittae [PDF]

open access: yesPublications of the Astronomical Society of the Pacific, 2002
We report the results of a worldwide campaign to observe WZ Sagittae during its 2001 superoutburst. After a 23-year slumber at V=15.5, the star rose within 2 days to a peak brightness of 8.2, and showed a main eruption lasting 25 days. The return to quiescence was punctuated by 12 small eruptions, of ~1 mag amplitude and 2 day recurrence time; these ...
Patterson, J.   +27 more
openaire   +3 more sources

First Find of Nematoda Hysterothylacium aduncum (Nematoda) Larvae from Sagitta Sagitta setosa in the Black Sea [PDF]

open access: yes, 2004
Впервые в Черном море у сагитты Sagitta setosa Muller, 1847 обнаружена личинка Hysterothylacium aduncum (Rud., 1802) L3. Исследованы морфологические особенности личинки, проведен анализ систематически важных морфометрических характеристик обнаруженной ...
Лобода, А.П.   +1 more
core   +2 more sources

Otolith and vertebral morphology of marine atherinid species (Atheriniformes, Atherinopsidae) coexisting in the southwestern Atlantic Ocean

open access: yesCiencias Marinas, 2010
Studies on marine ecosystems rely on the identification of fish prey species of piscivores (fish, aquatic mammals, and aquatic birds) based on their bones and otoliths. The stomach contents of piscivores show predation on marine atherinids of commercial
A D Tombari   +3 more
doaj   +1 more source

Limited Contribution of Hatchery‐Reared Pikeperch to a Wild Population in a Temperate Reservoir: Evidence From Otolith Microchemistry

open access: yesAquaculture, Fish and Fisheries, Volume 6, Issue 3, June 2026.
ABSTRACT Fish stocking is a common management practice used to mitigate the effects of overfishing and other threats to wild fish populations. It is mainly employed in freshwater ecosystems with complex and variable strategies (different timings, fish lengths and origins), making its effectiveness challenging to assess.
Allan T. Souza   +6 more
wiley   +1 more source

Feeding Ecology of Gould's Arrow Squid Nototodarus gouldi (Cephalopoda: Ommastrephidae) in Aotearoa New Zealand Waters

open access: yesNew Zealand Journal of Zoology, Volume 53, Issue 2, June 2026.
Squids are important components of marine ecosystems because of their role as both predator and prey. Across the Tasman Sea, Gould's arrow squid (Nototodarus gouldi) is a commercially targeted ommastrephid squid that supports an economically important fishery.
Lucia Hu   +4 more
wiley   +1 more source

Growth rate of Mnemiopsis mccradyi and Sagitta hispida determined experimentally [PDF]

open access: yes, 2014
Growth rate of Mnemiopsis mccradyi and Sagitta hispida determined ...
Patricia Kremer (8008355)   +5 more
core   +3 more sources

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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