Results 1 to 10 of about 1,037 (160)

Climate Extremes and Reproductive Phenology: Regional Variability of Hatch Timing in the Subarctic North Pacific

open access: yesGlobal Change Biology Communications
Climate‐related shifts in reproductive phenology can reshape the seasonal dynamics of marine ecosystems, yet spatiotemporal variation in hatch timing has the potential to buffer populations against these changes.
Nicholas S. Strait   +5 more
doaj   +2 more sources

Fluctuating Asymmetry in Asteriscii Otoliths of Common Carp (Cyprinus carpio) Collected from Three Localities in Iraqi Rivers Linked to Environmental Factors

open access: yesFishes, 2022
Otoliths, calcified structures in the inner ears, are used to estimate fish age, and their shape is an efficient fish stock identification tool. Otoliths are thus very important for the management and assessment of commercial stocks.
Laith Jawad, Kélig Mahé
doaj   +1 more source

The Superiority of the Otolith System [PDF]

open access: yesAudiology and Neurotology, 2020
<b><i>Background:</i></b> The peripheral vestibular end organ is considered to consist of semi-circular canals (SCC) for detection of angular accelerations and the otoliths for detection of linear accelerations. However, otoliths being phylogenetically the oldest part of the vestibular sensory organs are involved in detection of
Ramos de Miguel, Angel   +4 more
openaire   +4 more sources

Carbon and oxygen stable isotopes of freshwater fish otoliths from the São Francisco River, northeastern Brazil [PDF]

open access: yesAnais da Academia Brasileira de Ciências, 2021
Fish otoliths store geochemical and isotopic signatures that can be used as proxies for environmental conditions in ecological investigations.
NATAN S. PEREIRA   +4 more
doaj   +1 more source

Abnormal otoliths in the marine fishes collected from the Persian Gulf and the Gulf of Oman [PDF]

open access: yesActa Ichthyologica et Piscatoria, 2018
Background. Although several researchers have examined otoliths of marine fishes from the Persian Gulf and the Gulf of Oman, none has reported abnormalities.
N. Manizadeh   +3 more
doaj   +3 more sources

Relationships among tissues, biofluids, and otolith selenium concentrations in wild female burbot (Lota lota)

open access: yesIntegrated Environmental Assessment and Management, EarlyView., 2023
Abstract In the Lake Koocanusa‐Kootenai River system (Montana, USA and British Columbia, Canada), selenium (Se) contamination has become an international concern and is suspected to contribute to the observed burbot (Lota lota) population collapse. Due to our limited ability to sample burbot in Lake Koocanusa for monitoring studies, we used a reference
Stephanie D. Graves   +6 more
wiley   +1 more source

‘Ear stones’ in crocodylians: a cross-species comparative and ontogenetic survey of otolith structures

open access: yesRoyal Society Open Science, 2022
The vestibular system of the inner ear is a crucial sensory organ, involved in the sensation of balance and equilibrium. It consists of three semicircular canals that sense angular rotations of the head and the vestibule that detects linear acceleration ...
Julia A. Schwab   +7 more
doaj   +1 more source

Precision of age estimations from otolith, vertebra, and opercular bone of Gymnocypris firmispinatus (Actinopterygii: Cypriniformes: Cyprinidae) in the Anning River, China [PDF]

open access: yesActa Ichthyologica et Piscatoria, 2017
Background. Gymnocypris firmispinatus Wu et Wu, 1988 is a small fish with the maximum total length of 242 mm, which occurs only in the Jinsha River and its tributaries (China), at altitudes above 2000 m. Nowadays, G.
S. Ma B.   +8 more
doaj   +3 more sources

Insights of Otoliths Morphology to Reveal Patterns of Teleostean Fishes in the Southern Atlantic

open access: yesFishes, 2022
The sagitta otoliths of teleostean fishes are usually used in diverse studies. Their shapes are species-specific, and the qualitative description of their morphological features seems to be a simple task, despite its subjectivity.
Lucinha Santos   +1 more
doaj   +1 more source

Sagitta otolith of three demersal species in a tropical environment

open access: yesPapéis Avulsos de Zoologia, 2021
The objective of this study was to describe the morphology and morphometry of saggitta otoliths of Polydactylus virginicus, Menticirrhus cuiaranensis and Conodon nobilis in a tropical environment.
Crismen Santana de Oliveira   +3 more
doaj   +1 more source

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