Results 91 to 100 of about 8,417 (229)

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

Fish otoliths from the Paleocene of Denmark [PDF]

open access: yesGeological Survey of Denmark and Greenland Bulletin, 2003
Fish otoliths are described from the Lower Paleocene (Danian) and Middle Paleocene (Selandian) from Sjælland in Denmark. A total of 44 species are described, 23 as newly established and nine in open nomenclature.
Schwarzhans, Werner
doaj  

An investigation of koi carp (Cyprinus carpio) movement in the Waikato region using laser ablation otolith microchemistry

open access: yes, 2008
The koi carp Cyprinus carpio is an invasive fish that has reached high numbers and biomass in the North Island of New Zealand, particularly in the Waikato region. This species has a variety of negative effects on aquatic ecosystems, increasing turbidity,
Blair, Jennifer Marie
core  

An investigation into the diet of elephant fish (Callorhinchus milii) in the waters of Aotearoa/New Zealand

open access: yesJournal of Fish Biology, EarlyView.
Abstract Chondrichthyans (sharks, rays and chimaeras) are increasingly understood to be an important part of ocean ecosystems, but their ecological role is unclear. Callorhinchus milii (elephant fish) is a chimaera species endemic to Aotearoa/New Zealand and southern Australian waters.
Kat U. C. Cooper   +3 more
wiley   +1 more source

The taphonomic clock in fish otoliths

open access: yes, 2021
Paleobiological and paleoecological interpretations rely on constraining the temporal resolution of the fossil record. The taphonomic clock, that is, a correlation between the alteration of skeletal material and its age, is an approach for quantifying ...
Azzarone, M.   +5 more
core  

Temperature, but not acidification, influences the growth and lipid profile of juvenile sand whiting, Sillago ciliata (Cuvier 1829)

open access: yesJournal of Fish Biology, EarlyView.
Abstract Seafood provides an essential source of macro‐ and micronutrients for coastal communities worldwide. Climate change is a key threat to seafood security, altering the sizes, abundances, distributions, physiology and ecological interactions of fisheries species, and increasingly, there is evidence of impacts to seafood nutritional quality.
Tanika C. Shalders   +6 more
wiley   +1 more source

Otolith-based age and growth of the spotted moray eel (Gymnothorax moringa) and squirrelfish (Holocentrus adscensionis) from Ascension Island and St Helena

open access: yesFrontiers in Marine Science
This study investigates the age-based life-history traits of two groundfish species, the spotted moray eel (Gymnothorax moringa) and squirrelfish (Holocentrus adscensionis), found in Ascension Island and St Helena.
Valerio Visconti   +10 more
doaj   +1 more source

Otoliths in situ in the stem teleost Cavenderichthys talbragarensis (Woodward, 1895), otoliths in coprolites, and isolated otoliths from the Upper Jurassic of Talbragar, New South Wales, Australia

open access: yes, 2019
Cavenderichthys talbragarensis (Woodward, 1895) is a common signature freshwater stem teleost in the Upper Jurassic of Australia. Our discovery of numerous otoliths in the Talbragar Fish Bed establishes Cavenderichthys as only the second known Jurassic ...
Timothy D. Murphy (6381626)   +2 more
core   +1 more source

Melanoma and Other Melanistic Lesions in Brown Bullhead Ameiurus nebulosus From Waterbodies in the Northeastern United States and Canada: Identification of Risk Factors

open access: yesJournal of Fish Diseases, EarlyView.
ABSTRACT Melanistic lesions, including non‐raised black areas due to proliferations of melanocytes and melanomacrophages in the dermis and epidermis, as well as raised black areas consistent with melanoma, are described in brown bullhead (BBH) Ameiurus nebulosus from three water bodies in the northeastern United States and Quebec, Canada.
Vicki S. Blazer   +9 more
wiley   +1 more source

Age determination of a long-lived coregonid from the Canadian North: comparison of otoliths, fin rays and scales in inconnu (Stenodus leucichthys)

open access: yes, 2004
We examined otoliths, pelvic fin rays and scales of inconnu to determine precision of age estimates within and between readers, and to compare relative accuracy of estimates from different structures.
Howland, K.L.   +3 more
core   +1 more source

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