نتایج جستجو برای: stock density

تعداد نتایج: 496966  

2014
Kabindra Adhikari Alfred E. Hartemink Budiman Minasny Rania Bou Kheir Mette B. Greve Mogens H. Greve

Estimation of carbon contents and stocks are important for carbon sequestration, greenhouse gas emissions and national carbon balance inventories. For Denmark, we modeled the vertical distribution of soil organic carbon (SOC) and bulk density, and mapped its spatial distribution at five standard soil depth intervals (0-5, 5-15, 15-30, 30-60 and 60-100 cm) using 18 environmental variables as pre...

2012
Faith Ochwada-Doyle Charles A. Gray Neil R. Loneragan Iain M. Suthers Matthew D. Taylor

The mechanisms that drive density dependence are rarely studied in the applied context of population management. We examined the potential for competition for food and shelter and the resulting demographic density dependence to influence how well populations of the eastern king prawn Penaeus plebejus Hess can recover following marine stock enhancement programmes in which captive-bred juveniles ...

2013
UWE KÜCHLER STEFAN TAPPE

We investigate the class of tempered stable distributions and their associated processes. Our analysis of tempered stable distributions includes limit distributions, parameter estimation and the study of their densities. Regarding tempered stable processes, we deal with density transformations and compute their p-variation indices. Exponential stock models driven by tempered stable processes ar...

Journal: :IEEE Trans. Information Theory 1990
Bertrand S. Clarke Andrew R. Barron

In the absence of knowledge of the true density function, Bayesian models take the joint density function for a sequence of n random variables to be an average of densities with respect to a prior. We examine the relative entropy distance D,, between the true density and the Bayesian density and show that the asymptotic distance is (d / 2 X l o g n) + c, where d is the dimension of the paramete...

Journal: :Ecological applications : a publication of the Ecological Society of America 2018
Jacob L Moore Brandon Puckett Sebastian J Schreiber

Positive density dependence (i.e. Allee effects) can create a threshold of population states below which extinction of the population occurs. The existence of this threshold, which can often be a complex, multi-dimensional surface, rather than a single point, is of particular importance in degraded populations for which there is a desire for successful restoration. Here, we incorporated positiv...

ژورنال: توسعه آبزی پروری 2023

The aim of this study was to elevate the effect of stocking density of 20, 25 and 30 fish/m3 on some growth parameters and skin color of Koi fry (Cyprinus carpio) with the mean weight of 1.9 ±0.8 g (±SE) in the concrete ponds, earthen ponds, and fiberglass tanks with the total capacity of 1000 L for 45 days. The highest Final weight (12.38±1.9 g), Final length (10.05±1.06 cm), Body weight incre...

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