early life stages
Ammonia and urea handling by early life stages of fishes
... on early life stages of fishes, which have received considerable attention in more recent ...in early life differs fundamentally from that of juvenile and adult fishes because of (1) ...
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The Toxicity of 10W-40 Motor Oil on Zebrafish Early Life Stages
... In this study, toxicity of water associated fraction of 10W-40 motor oil was investigated during the early life stages of zebrafish (Danio rerio). In 1.5-hour post fertilization (hpf), the fertilized ...
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NeemAzal T/S – toxicity to early life stages of common carp (Cyprinus carpio L )
... ABSTRACT: In the European Union, the use of the insecticide NeemAzal T/S (standardised variant 1% of the active ingredient azadirachtin) is authorised in organic agriculture. The objective of this study was to determine ...
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Sensitivity of Early Life Stages of Freshwater Mussels to a Range of Common and Extreme Water Temperatures
... the early life stages of several species of freshwater mussels, and species living closest to their thermal limits may be most susceptible to changes in environmental temperatures (Tomanek and Somero ...
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Stress tolerance of Antarctic macroalgae in the early life stages
... adult stages (e.g., [2, 3]), while studies on early life stages are ...developmental stages, ...that early life stages are also extremely shade-adapted and ...
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Variations of Immune Parameters in the Early Life Stages and the Female Broodstock of the Cultured Persian Sturgeon, Acipenser persicus (Borodin 1897) and the Sterlet, Acipenser ruthenus (Linnaeus, 1758)
... developmental stages from 5 to 99 DPH (Lange, Bambir, Dodds, & Magnadottir, ...the early developmental stages of fish (Lange et ...the early life stages (from the ...
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Toxicity Evaluation of Acrylamide on the Early Life Stages of the Zebrafish Embryos (Danio rerio)
... Characteristics signs of acrylamide early life stage toxicity in embryo are pre- sented in Figure 2. The embryonic abnormalities were observed within 32 hours of exposure, indicating that acrylamide may be ...
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Subtle effects of environmental stress observed in the early life stages of the Common frog, Rana temporaria
... Rana temporaria tadpoles were caught from all three sites in 2012, 2013 and 2014 (n = 90 in total) using dip nets (ten per site per year), euthanised using a solution of MS-222 (200 mg/L) buffered with sodium bicarbonate ...
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Alterations in antioxidant defence in the early life stages of silver carp, Hypophthalmichthys molitrix
... 1. Davies, K.J.A. (2000) Oxidative stress:the paradox of aerobic life. Biochem. Soc. Symp., 61, 1-31. 2. Mourente, G., Díaz-Salvago, E., Tocher, D.R., and Bell J.G. (2000) Effects of dietary polyunsaturated fatty ...
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The mechanisms of urea transport by early life stages of rainbow trout (Oncorhynchus mykiss)
... Exposure of embryos to acetamide 1.80 mmol l−1 and thiourea 1.80 mmol l−1 had no effect on ammonia excretion rates results not shown, suggesting that nitrogen metabolism was not markedly[r] ...
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Early life stages of carp (Cyprinus carpio L ) depend on ambient magnesium for their development
... Magnesium concentrations below O.OlOmmoll"1 seriously impeded carp embryonic development: the incidence of deformed larvae and mortality increased steeply to 100 % at water magnesium con[r] ...
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Effects of a cypermethrin based pesticide on early life stages of common carp (Cyprinus carpio L )
... Early-life stage toxicity test. This test followed the OECD 210 Guideline for Testing of Chemicals (OECD 2013), modified in that only fertilised eggs were selected for testing. One-hundred eggs at 24 h ...
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Feeding ecology in the early life stages of the crown-of-thorns starfish, Acanthaster planci (L.)
... Chapter Three: Laboratory studies of larval nutrition of Acanthaster planci 30 3.1 Introduction 30 3.2 Materials and methods 3.2.1 Larval rearing experiments using membrane filtered seaw[r] ...
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Predation on the early life stages of the crown-of-thorns starfish (Acanthaster cf. solaris)
... different stages in the life cycle of CoTS, especially pre- settlement ...and early post-settlement life stages, which is quite possibly the most significant bottleneck in their ...
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Copper pollution exacerbates the effects of ocean acidification and warming on kelp microscopic early life stages
... Our results reveal that local anthropogenic drivers such as copper pollution have a greater impact on kelp mei- ospore survival and ontogenic development than global climate drivers such as OW and OA. While the inde- ...
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Sensitivity of the early life stages of a mayfly to fine sediment and orthophosphate levels
... have identified effects of fine sediment on invertebrate survival at levels ≥ 8 mg l-1 in Canadian.. freshwaters Rosenberg and Wiens, 1978; Quinn et.[r] ...
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Visual pigments in the early life stages of Pacific northwest marine fishes
... that early stage fish larvae possess only cone photoreceptor cells, rods being excluded from the retina until later stages (Powers and Raymond, 1990; Blaxter, 1991; Fernald, 1993; Shand, 1993; Higgs and ...
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Early life history and fisheries oceanography: new questions in a changing world
... The second question is much more complex and has not been widely addressed. Potential changes in spawning activity have been esti- mated as part of broader models consider- ing food web effects and adult distributions ...
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The effects of ocean acidification and warming on the early life history stages of corals
... the early life history stages of corals remained largely ...and early life history stages of corals are well known, the possible synergistic effects of temperature and OA have ...
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Life history, phenology, host plant selection and utilization in the endangered danaid eggfly Hypolimnas misippus
... the early life stages are given in Fig: ...these stages developed on the excised foliage of ...entire life cycle was completed in 23-30 days; average duration from egg to adult ...
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