نتایج جستجو برای: coral relocation

تعداد نتایج: 21465  

2014
Melissa S. Roth

Coral reef ecosystems thrive in tropical oligotrophic oceans because of the relationship between corals and endosymbiotic dinoflagellate algae called Symbiodinium. Symbiodinium convert sunlight and carbon dioxide into organic carbon and oxygen to fuel coral growth and calcification, creating habitat for these diverse and productive ecosystems. Light is thus a key regulating factor shaping the p...

2013
Valeriya Komyakova Philip L. Munday Geoffrey P. Jones

The structure of coral reef habitat has a pronounced influence on the diversity, composition and abundance of reef-associated fishes. However, the particular features of the habitat that are most critical are not always known. Coral habitats can vary in many characteristics, notably live coral cover, topographic complexity and coral diversity, but the relative effects of these habitat character...

Ehsan Kamrani, Hamid Rezai, Kaveh Samimi, Keivan Kabiri, Mahshid Jalili, Mohammad Mokhtari,

The percentage cover and distribution of scleractinian corals were studied at two Iranian islands in the Persian Gulf. Survey techniques involved the use of 20-m line transects placed at 4-9 m depth interval, parallel to the shore. GIS based maps were employed to show the distribution of hard corals. In Farurgan Island, hard coral cover was concentrated in the west and north-west of the island,...

2001
Yoshikatsu Sato Masamitsu Wada Akeo Kadota

In the fern Adiantum capillus-veneris, chloroplast movement is induced by mechanical stimulation as well as by light stimulation. Directional movement of both types depends on an actin-based motile system. To investigate the physiological relationship between mechanical and light signaling in the regulation of chloroplast movement, we examined the mechanoresponse of chloroplasts whose motility ...

1998
M. Ranganathan Anurag Acharya Joel H. Saltz

EEcient data combination over wide-area networks is hard as wide-area networks have large variations in available network bandwidth. In this paper, we examine the utility of changing the location of combination operators as a technique to adapt to variations in wide-area network bandwidth. We try to answer the following questions. First, does relocation of operators provide a signiicant perform...

2008
William G. Austin

The forensic risk assessment model for child custody relocation cases was described by Austin (2000a, 2000b). It is a research-based, actuarial predictive model designed to assist evaluators in organizing data for the complex relocation case. It is only the first step in the forensic relocation analysis. The model can serve as a heuristic for decision makers who are in a position of trying to r...

ژورنال: بوم شناسی آبزیان 2015
Riahi Bakhtiari, Alireza , Darvishnia, Zahra , Kamrani, Ehsan , Sadjjadi, Mir Masoud ,

The following research was conducted to study the concentration of Pb, Fe & Zn in skeletons and sediments of dominant hard coral family (Faviidae) in Zeyton Park, Naz Islands and Shib-deraz stations, South of Qeshm Island. The analysis of these heavy metals in digested samples of skeletons and sediments was done using graphite furnace Atomic Absorbtion Spectophotometry for measuring the levels ...

2011
F. Joseph Pollock Pamela J. Morris Bette L. Willis David G. Bourne

Coral disease has emerged over recent decades as a significant threat to coral reef ecosystems, with declines in coral cover and diversity of Caribbean reefs providing an example of the potential impacts of disease at regional scales. If similar trends are to be mitigated or avoided on reefs worldwide, a deeper understanding of the factors underlying the origin and spread of coral diseases and ...

2006
Krzysztof Jakub Kruszynski Robert van Liere Jaap A. Kaandorp

Determining the shape of coral structures is an essential step for coral biologists to classify and compare corals. Currently, coral biologists analyze shape by performing manual measurements on photographs of coral colonies. In this paper we describe an interactive visualization system for measuring coral shapes in a robust and quantitative way. The input of the system is a CT scan of the cora...

Optical modeling was applied for obtaining absorbance spectra and band gap values for different morphology of ZnO semiconductor. In optical modeling, the relative permittivity scalars of zinc oxide coral like nanorods were calculated using the Bruggeman homogenization formalism. ZnO nano rods (ZONRs) as a nucleus layer were fabricated on the Indium Tin Oxide (ITO) by chronoamperometry (CA) in a...

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