Results 81 to 90 of about 10,589 (199)
The growth characteristics of sparid otoliths [PDF]
The periodicity of formation of growth increments in the otoliths of South African sparids was validated by the oxytetracycline labelling technique. Intramuscular injections of oxytetracycline at a dosage of 250mg/kg marked the otoliths of laboratory ...
Lang, Judy Brenda
core +1 more source
Abstract The early ontogeny of endemic freshwater fishes provides essential baseline biological information for conservation and management, particularly in species with restricted distributions and high vulnerability to habitat degradation, environmental change and population decline. This study presents the first detailed description of embryonic and
Rubén Alonso Contreras‐Tapia +6 more
wiley +1 more source
Strontium speciation in archaeological otoliths
International audienceFish otoliths (“ear stones”) are major environmental indicators used in ecology and fisheries sciences. Otoliths consist of a biomineral material containing an organically-templated mineral calcium carbonate, normally aragonite, in ...
Cook, Phil, +6 more
core +1 more source
Otoliths of the Gobiidae from the Neogene of tropical America
Otoliths are common and diverse in the Neogene of tropical America. Following previous studies of Neogene tropical American otoliths of the lanternfishes (Myctophidae), marine catfishes (Ariidae), croakers (Sciaenidae), and cusk-eels (Ophidiiformes), we ...
Werner W. Schwarzhans +1 more
doaj +1 more source
Age, growth and sexual dimorphism of the monkeyface prickleback (Cebidichthys violaceus)
Abstract Accurate estimates of age, growth and maturation are fundamental to fisheries assessment, conservation and the development of emerging aquaculture species. However, life‐history parameters can vary within species and may be influenced by factors such as sexual dimorphism, which is often poorly quantified in non‐commercial or understudied ...
Kevin D. Hinterman +3 more
wiley +1 more source
Reassembling broken otoliths for population discrimination
No abstracts are to be cited without prior reference to the author. Twenty five Atlantic cod Gadus morhua otoliths were examined using eight shape measurements along with Fourier analysis of their outlines to test whether discrimination using otolith ...
Hlynur Bárðarson (4540519) +3 more
core +1 more source
Abstract Noise from human activities has increased and been shown to negatively impact marine animals. Marine mammals and fish are vulnerable to anthropogenic noise because they rely on sound to communicate, find food, avoid predators and sense their environment. Forage fish are small schooling pelagic fish, important to many predators and instrumental
Meredith A. V. White +8 more
wiley +1 more source
Adaptation to extreme environments: A review of Antarctic fish physiology
Abstract Having evolved in the chronically cold and thermally stable waters of the Southern Ocean (SO) for millions of years, Antarctic fish possess a suite of physiological specializations that enable them to survive at temperatures near the freezing point of seawater. Adaptations include the evolution of antifreeze proteins, modifications of membrane
Seungyeon Lee +8 more
wiley +1 more source
Abstract Partial migration, in which migratory and resident individuals coexist within a population, is widespread in fishes and contributes to population resilience. However, the role of sex in shaping migratory strategies remains poorly understood. Herein, we examined partial migration in Japanese seabass Lateolabrax japonicus using sex ratios and ...
Yoh Yamashita +13 more
wiley +1 more source
9 páginas, 4 figuras.-- Scientific Council MeetingThe best strategy for otoliths sampling and its optimum sample size were tested by Monte Carlo simulation. Every option was judged by its effects on VPA results.
Mandado, Mónica +1 more
core +1 more source

