Results 21 to 30 of about 1,712 (153)

Otolith Morphometric and Shape Distinction of Three Redfin Species under the Genus Decapterus (Teleostei: Carangidae) from Sulu Sea, Philippines

open access: yesFishes, 2023
Otoliths are paired calcified structures in the inner ear of teleosts that function in hearing and balance. In this study, the use of otolith morphometrics and shape analysis were explored to delineate the redfin species under the genus Decapterus from ...
Christian James C. Morales   +6 more
doaj   +1 more source

Developmental Temperature Shapes the Otolith Morphology of Metamorphosing and Juvenile Gilthead Seabream (Sparus aurata Linnaeus, 1758)

open access: yesFishes, 2022
Otolith morphological variability is used as a reliable indicator to discriminate fish that experience different environmental conditions during their lifetimes.
George Geladakis   +3 more
doaj   +1 more source

Ontogenetic and sexual variation in the sagitta otolith of Menticirrhus americanus (Teleostei; Sciaenidae) (Linnaeus, 1758) in a subtropical environment [PDF]

open access: yesPapéis Avulsos de Zoologia, 2020
This study aimed to verify variations in the form of the sagitta otolith of Menticirrhus americanus as to their ontogeny, sex and stage of such structure. Ontogenetically were found significant differences (p < 0.05) for all shape indices (aspect ratios,
Barbara Maichak de Carvalho   +2 more
doaj   +1 more source

Relationships between Fish Sizes and Otolith Sizes of Whiting (Merlangius merlangus Linnaeus, 1758) from the Western Black Sea

open access: yesAquatic Sciences and Engineering, 2020
The objective of this study was to determine the regressions between otolith sizes and shape indices vs. fish length, and weight of whiting, Merlangius merlangus (Linnaeus, 1758), from the Black Sea. Samples were collected randomly from commercial bottom
Taner Yıldız
doaj   +1 more source

Glass eels and viruses – a lesson learnt from stocking the eastern German Baltic Sea coast

open access: yesTransboundary and Emerging Diseases, Accepted Article., 2022
Abstract Concerns about Anguillid herpesvirus 1 (AngHV‐1) in European eels, especially due to stocking measures, is increasingly coming into focus and raises questions regarding disease monitoring and prevention. In the past, stocking of AngHV‐1‐positive eels into waters assumed AngHV‐1‐free has led to a rapid increase of infected eels in the wild. For
Laura Kullmann   +3 more
wiley   +1 more source

Identification of gerreid species (Actinopterygii: Perciformes: Gerreidae) from the Pacific coast of Mexico based on sagittal otolith morphology analysis [PDF]

open access: yesActa Ichthyologica et Piscatoria, 2012
Background. Although the species of the family Gerreidae have been subjected to many studies, their taxonomy at specific- and sometimes generic levels is still confusing. To contribute to the clarification of the taxonomy of the Mexican Pacific mojarras,
J. De La Cruz-Agüero   +3 more
doaj   +3 more sources

Comparative Otolith Morphology of Two Morphs of Schizopygopsis thermalis Herzenstein 1891 (Pisces, Cyprinidae) in a Headwater Lake on the Qinghai-Tibet Plateau

open access: yesFishes, 2022
Teleost otoliths provide a pivotal medium for studying changes in population structure and population dynamics of fish. Understanding the otolith-fish size relationship and intraspecies variation in otolith morphology is essential for the accurate ...
Jialing Qiao   +5 more
doaj   +1 more source

Plasticity in the shape and growth pattern of asteriscus otolith of black prochilodus Prochilodus nigricans (Teleostei: Characiformes: Prochilodontidae) freshwater Neotropical migratory fish

open access: yesNeotropical Ichthyology, 2018
Using morphometric measurements and wavelets functions, the asterisci otoliths of curimatã, Prochilodus nigricans were analysed to identify the variation in shape and growth increment of individuals from Solimões, Japurá and Negro rivers of the Amazon ...
Rosa Maria Rodrigues da Costa   +3 more
doaj   +1 more source

Provenancing fish in freshwaters of the Alpine Foreland using Sr/Ca and 87Sr/86Sr ratios in otoliths and otolith shape parameters

open access: yesFrontiers in Marine Science, 2015
Analysis of elemental and isotopic compositions and of the shape of fish otoliths has become an important tool in fish ecology. Highly relevant questions like origin and migration of fish over their life time cannot be answered easily with other methods.
Johannes Oehm, Johanna Irrgeher
doaj   +1 more source

Stock discrimination of the bogue, Boops boops (Actinopterygii: Perciformes: Sparidae), from two Tunisian marine stations using the otolith shape [PDF]

open access: yesActa Ichthyologica et Piscatoria, 2020
Background. The bogue, Boops boops (Linnaeus, 1758), is the most common sparid fish in the Tunisian waters. Despite its economic importance, the stock discrimination of this species is poorly understood up to date.
M. Ben Labidi   +5 more
doaj   +3 more sources

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