نتایج جستجو برای: settlement time

تعداد نتایج: 1905685  

2012
Christina Carl Andrew J. Poole Mike R. Williams Rocky de Nys

The global mussel aquaculture industry uses specialised spat catching and nursery culture ropes made of multi-filament synthetic and natural fibres to optimise settlement and retention of mussels for on-growing. However, the settlement ecology and preferences of mussels are poorly understood and only sparse information exists in a commercial context. This study quantified the settlement prefere...

2012
Temjensangba Imchen

Present study consists the, effect of temperature (10-30C), salinity (15-35 psu) and biofilm on the settlement of Enteromorpha flexousa zoospores. Settlement of zoospores was significantly (p<0.05) influenced by both temperature and salinity. Highest percentage of settlement occurred at 25C and 30 psu respectively. Subsequently the influence of biofilm was evaluated at the optimum 25C and 30 ps...

2009
Richard A. Wahle Mark Gibson Michael Fogarty

We describe a time series analysis that differentiates the effects of variable larval supply and the mortality impact of shell disease on cohorts of the American lobster Homarus americanus in a southern New England, USA, coastal population. Prior to the onset of a shell disease epizootic in 1997, larval settlement alone fully explained 82% of the variation in the numbers of pre-recruit lobsters...

Journal: :Bioresource technology 2008
Bo Yue Tong-Bin Chen Ding Gao Guo-Di Zheng Bin Liu Duu-Jong Lee

In this study, a settlement measurement device was used to track the settlement of different layers in composting piles, and time courses of settlement velocity, bulk density distribution, and effective bulk density were investigated. Settlement is divided into two stages: the physical compressive settlement and the mass loss settlement. At the end of the former stage, bulk density (rho') and p...

2016
Isabel Fuentes-Santos Uxío Labarta X. Antón Álvarez-Salgado Mª José Fernández-Reiriz

Identifying the environmental factors driving larval settlement processes is crucial to understand the population dynamics of marine invertebrates. This work aims to go a step ahead and predict larval presence and intensity. For this purpose we consider the influence of solar irradiance, wind regime and continental runoff on the settlement processes. For the first time, we conducted a 5-years w...

2015
Andrew G. Bauman James R. Guest Glenn Dunshea Jeffery Low Peter A. Todd Peter D. Steinberg Sebastian C. A. Ferse

Processes occurring early in the life stages of corals can greatly influence the demography of coral populations, and successful settlement of coral larvae that leads to recruitment is a critical life history stage for coral reef ecosystems. Although corals in Singapore persist in one the world's most anthropogenically impacted reef systems, our understanding of the role of coral settlement in ...

2014
Tauna L. Rankin Su Sponaugle Sebastian C. A. Ferse

Many marine populations exhibit high variability in the recruitment of young into the population. While environmental cycles and oceanography explain some patterns of replenishment, the role of other growth-related processes in influencing settlement and recruitment is less clear. Examination of a 65-mo. time series of recruitment of a common coral reef fish, Stegastes partitus, to the reefs of...

Journal: :international journal of environmental research 0
k.p.k. jayakody department of urban and environmental engineering, kyushu university, 744 motooka, nishi-ku, fukuoka 819-0395, japan t. shimaoka department of urban and environmental engineering, kyushu university, 744 motooka, nishi-ku, fukuoka 819-0395, japan t. komiya department of urban and environmental engineering, kyushu university, 744 motooka, nishi-ku, fukuoka 819-0395, japan p. ehler department of urban and environmental engineering, kyushu university, 744 motooka, nishi-ku, fukuoka 819-0395, japan

to examine how water retention characteristics in a landfill environment change as a result ofsolid waste settlement and to derive the evolution of pore size distribution, a lab scale long column experiment was carried out at two different time periods while keeping all the other characteristics constant. two columns, column 1 and column 2, were used in the study. the log normal distribution mo...

Journal: :JCP 2014
Shuoben Bi Yin Shi Lianghu Lu Xiaowen Zeng

Based on the data of Jiangzhai one-stage settlement sites archaeological excavation data, this paper applies three-dimensional visualization technology of virtual reality to scenario building. In order to enhance the fidelity of prehistoric settlement sites to reproduce the virtual system simulation results in the system design and implementation process, it essential to build plenty of the nat...

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