Results 21 to 30 of about 879 (180)

Use of otolith shape to differentiate two lagoon populations of Pagellus erythrinus (Actinopterygii: Perciformes: Sparidae) in Tunisian waters [PDF]

open access: yesActa Ichthyologica et Piscatoria, 2018
Background. The common pandora, Pagellus erythrinus (Linnaeus, 1758), is widely distributed in the Black and the Mediterranean seas. Therefore, P. erythrinus is a valuable component of the commercial fishery in Tunisia and plays an important role in ...
M. Mejri   +7 more
doaj   +3 more sources

Gobioides sagitta

open access: yes, 2022
Gobioides sagitta (Günther 1862) Occurrence: possible Maximum length: 39.7 cm SL Water type: marine, brackish, freshwater Environment: demersal Depth range: _ Migration: amphidromous to be confirmed IUCN status: LC – Least concern (2020) Source: bibliography Distribution and remarks: East Atlantic: known from Senegal to Democratic ...
Fermon, Yves   +17 more
openaire   +2 more sources

FG Sagittae [PDF]

open access: yesInternational Astronomical Union Colloquium, 2002
AbstractFG Sagittae has evolved from a hot central star of a planetary nebula to an K-type supergiant within approximately the last 100 years. The generally accepted interpretation for this redward evolution is that of a late thermal pulse during the planetary nebula stage, wherein helium burning at the surface of the electron-degenerate carbon-oxygen ...
Detlef Schönberner, C. Simon Jeffery
openaire   +1 more source

Biomass and estimated production, and feeding pressure on zooplankton of chaetognaths in the Yellow Sea, China

open access: yesTerrestrial, Atmospheric and Oceanic Sciences, 2020
The biomass and estimated production, feeding rate of chaetognaths were studied in the Yellow Sea. Sagitta crassa, Sagitta enflata, Sagitta bedoti, and Sagitta nagae were found during the study period, and S. crassa and S. nagae were the dominant species.
Yuanzi Huo   +8 more
doaj   +1 more source

Multiscale analysis on otolith structural features reveals differences in ontogenesis and sex in Merluccius merluccius in the western Adriatic Sea

open access: yesRoyal Society Open Science, 2022
Otolith biomineralization results from biochemical processes regulated by the interaction of internal (physiological) and external (environmental) factors which lead to morphological and ultrastructural variability at intra- and interspecific levels. The
Quinzia Palazzo   +9 more
doaj   +1 more source

Seasonal chaetognath abundance and distribution in a tropical estuary (Southeastern, Brazil)

open access: yesBrazilian Journal of Oceanography, 2005
This study focuses on the seasonal variation of the chaetognath species in the Vitória Bay/Passage Channel estuarine system, Espírito Santo, Brazil, in terms of their abundance and distribution.
Luiz Loureiro Fernandes   +2 more
doaj   +1 more source

On the embryogeny of Sagitta [PDF]

open access: yesAnnals and Magazine of Natural History, 1892
(1892). On the embryogeny of Sagitta. Annals and Magazine of Natural History: Vol. 9, No. 53, pp. 415-416.
openaire   +2 more sources

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

Otolith characterization and integrative species identification of adult mesopelagic fishes from the western North Atlantic Ocean

open access: yesFrontiers in Marine Science, 2023
Fish diversity and ecology in the ocean’s mesopelagic zone are understudied compared to other marine regions despite growing interest in harvesting these potential resources.
Lucinda A. Quigley   +10 more
doaj   +1 more source

Is Chelidonichthys lucerna (Linnaeus, 1758) a Marine Estuarine-Dependent Fish? Insights from Saccular Otolith Microchemistry

open access: yesFishes, 2023
Tub gurnard, Chelidonichthys lucerna (Linnaeus, 1758), is a Mediterranean-Atlantic benthic species usually captured as by-catch by Portuguese traditional fisheries and considered the most important commercial fish species of the family Triglidae. However,
Inês Ferreira   +7 more
doaj   +1 more source

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