Results 81 to 90 of about 43,363 (323)

The Impact of Two Different Cold-Extruded Feeds and Feeding Regimens on Zebrafish Survival, Growth and Reproductive Performance

open access: yesJournal of Developmental Biology, 2018
Zebrafish (Danio rerio) is one of the top model organisms used in biomedical research. Therefore, it is fundamental that zebrafish facilities continuously improve husbandry methods to provide fish with the best physiological and welfare conditions that ...
Joana F. Monteiro   +4 more
doaj   +1 more source

On the nutrition of Polyphemus pediculus (L.). [Translation from: Trudy Instituta Biologii Vnutrennykh Vodnany 12(15) 170-174, 1966.] [PDF]

open access: yes, 1966
Many sides of the biology of Polyphemus pediculus are adequately studied at the present time. Most complicated is the question of its feeding. Dissection does not give an idea of the composition of the food, since Polyphemus strongly grinds its food with
Butorina, L.G., Sorokin, Yu I.
core  

Rotiferan Hox genes give new insights into the evolution of metazoan bodyplans [PDF]

open access: yes, 2017
The phylum Rotifera consists of minuscule, nonsegmented animals with a unique body plan and an unresolved phylogenetic position. The presence of pharyngeal articulated jaws supports an inclusion in Gnathifera nested in the Spiralia.
Fröbius, Andreas C., Funch, Peter
core   +1 more source

Larval Arctic cod (Boreogadus saida) exhibit stronger developmental and physiological responses to temperature than to elevated pCO2

open access: yesJournal of Fish Biology, EarlyView.
Abstract High‐latitude ecosystems are simultaneously warming and acidifying under ongoing climate change. Arctic cod (Boreogadus saida) are a key species in the Arctic Ocean and have demonstrated sensitivity to ocean warming and acidification as adults and embryos, but their larval sensitivity to the combined stressors is unknown. In a laboratory multi‐
Emily Slesinger   +6 more
wiley   +1 more source

On the nutrition of the predatory cladocerans Leptodora and Bythotrephes. [Translation of: Byulleten' Institute Biologii Vodokhranilishch 6, pp. 21-22, 1960] [PDF]

open access: yes, 1960
Results of the investigation on certain problems of the nutrition of Leptodora and Bythotrephes in Rybinsk Reservoir (Russia) are reviewed. To clarify the composition of the food of Leptodora and Bythotrephes in this period, experiments were provided on ...
Mordukhai-Boltovskaya, E.D.
core  

Reproduction and embryonic development of monkeyface prickleback Cebidichthys violaceus in captivity

open access: yesJournal of Fish Biology, EarlyView.
Abstract Understanding the sequence of embryonic and larval development and the factors necessary to induce reproduction in captivity are critical for developing new species for commercial or conservation aquaculture. In this study, we describe the adult reproductive behaviours and development of eggs, embryos and early larvae of captive monkeyface ...
Kevin D. Hinterman   +3 more
wiley   +1 more source

The effect of a 24-hour photoperiod on the survival, growth and swim bladder inflation of pre-flexion yellowfin tuna (Thunnus albacares) larvae [PDF]

open access: yes, 2011
The effects of two different continuous photoperiod regimes on survival, growth and swim bladder inflation of pre-flexion yellowfin tuna (Thunnus albacares) larvae were investigated. Each photoperiod regime was tested twice with a different larval cohort
A. McIntyre   +43 more
core   +2 more sources

Amazonian drought of 2023: Environmental conditions relevant to fishes

open access: yesJournal of Fish Biology, EarlyView.
Abstract This paper provides a platform for the following studies within this Special Issue. ‘Ecophysiology of fishes in the two great tributaries of the Amazon in the Anthropocene’. It documents the water quality conditions and accompanying zooplankton community structure and biomass relative to fish health in the Rio Negro and Rio Solimões during the
Ora E. Johannsson   +10 more
wiley   +1 more source

Rotifera of the Peruvian Andes: New Records and Insights

open access: yesDiversity
The Rotifera fauna of the Peruvian Andes remains significantly understudied, as evidenced by our findings from a limited sampling effort of 18 locations (15 samples from the Cusco region and three samples from Lake Titicaca). We identified 12 Monogononta
Maciej Karpowicz   +4 more
doaj   +1 more source

About the relationship between the zooplankton and fluctuating water levels of Lago Camaleão, a Central Amazonian várzea lake

open access: yes, 1984
A two-year study of the composition and abundance of the zooplankton was conducted in an Amazonian vãrzea lake, Lago Camaleão. Rotifers were dominant in terms of both species numbers and density.
Hardy, E., Koste, W., Robertson, B.
core  

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