منابع مشابه
Modification of the plasma cortisol response to stress in rainbow trout by selective breeding.
Male and female rainbow trout were segregated into high- and low-responding individuals (HR, LR) on the basis of their plasma cortisol response to a 3-h period of confinement imposed at monthly intervals for 5 months. Consistent divergence was obtained in the responsiveness of the two groups, although the difference between LR and HR groups was greater in female fish (56 c.f. 116 ng ml(-1)) tha...
متن کاملKinship analysis of brook trout Salvelinus fontinalis during their breeding migration.
Microsatellite markers were used to test whether groups of pre-spawning adult brook trout Salvelinus fontinalis from the same population and captured at the same location during their breeding migration comprised kin. Only weak evidence for kin associations was found at the onset of breeding: the proportion of kin captured at the same location was low and similar to the proportion found across ...
متن کاملInvestigation of changes in biochemical and blood parameters of rainbow trout (Oncorhynchus mykiss) for breeding in saline water
Abstract The purpose of this study was to investigate the compatibility of rainbow trout fish with biochemical and blood parameters in waters with a salinity range of 0-20 gram per liter order to allow the introduction and development of this species in different aquatic environments with different salinity levels. Baby fish from a cold water factory in Mazandaran province were transported to t...
متن کاملTransfers and Development Easy Come , Easy Go ?
A central behavioral assumption of economic theory is that income is fungible. Yet, building on the pioneering work by Thaler (1999) recent work by behavioural economists highlights that people code income in different mental accounts, creating a direct link between spending behaviour and income sources, thereby violating the fungibility assumption. This paper examines whether the marginal prop...
متن کاملEasy Sets Without Easy Small Subsets
We show the existence of relativized worlds relative to which there exist innnite polynomial-time computable sets without innnite polynomial-time computable sparse subsets or even non-deterministically polynomial-time computable sparse subsets. This result is tight since every innnite P set has an innnite sparse coNP subset.
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ژورنال
عنوان ژورنال: Scientific American
سال: 1880
ISSN: 0036-8733
DOI: 10.1038/scientificamerican04031880-3541asupp