نتایج جستجو برای: tev of coral reef

تعداد نتایج: 21169374  

Journal: :international journal of environmental research 2011
sh. madani m. ahmadian m. khaliliaraghi f. rahbar

this paper is concerned with the economic valuation of the coral reef within kish island in persian gulf of iran. for calculating this value, all components of use and non-use values are estimated and then according to each of them, suitable method has applied. many different evaluation tools such as contingent valuation method, zonal travel cost method, replacement cost, avoided cost method, ...

Journal: :تحقیق در علوم شیلاتی 0
f owfi m rabbaniha s al-obeid mehana f mahichi

the persian gulf is northern part of the ropme sea area (rsa), and is semi-enclosed shallow sea which located in subtropical climate. measuring is 1000km in length, varying in width 60-340km, and average depth is about 35m and maximum depth is 105m. this research was carried out during 2005-2010 for reviewing the corals status and determination of coral reef habitats distribution in the persian...

F Mahichi , F Owfi , M Rabbaniha , S Al-Obeid Mehana ,

The Persian Gulf is northern part of the ROPME Sea Area (RSA), and is semi-enclosed shallow sea which located in subtropical climate. Measuring is 1000km in length, varying in width 60-340km, and average depth is about 35m and maximum depth is 105m. This research was carried out during 2005-2010 for reviewing the corals status and determination of coral reef habitats distribution in the Persian...

Behrooz Abtahi, Jahangir Vajed Samiei, Koosha Dab,

In the Persian Gulf, Acropora- dominated coral reefs have been damaged by global and local disturbances. Inversion of coral colonies mostly occur due to anchoring and fishing in many coral reefs, particularly those established nearby human societies, like the coral reef of Hengam Island, in the Persian Gulf. The short term growth rates (weight increment) of inversely and normally transplanted c...

Charitha B. Pattiaratchi, Graham Symonds, Greg N. Ivey, Ryan J. Lowe, Soheila Taebi,

As with all coral reef systems, the ecology of Ningaloo Reef is closely linked to water circulation which transport and disperse key material such as nutrients and larvae. Circulation on coral reefs may be driven by a number of forcing mechanisms including waves, tides, wind, and buoyancy effects. Surface waves interacting with reefs have long been known to dominate the currents on many coral r...

Journal: :journal of the persian gulf marine sciences 0
ali mehdinia department of marine living science, ocean sciences research center, iranian national institute for oceanography and atmospheric science, tehran, iran neda sheijooni fumani department of marine living science, ocean sciences research center, iranian national institute for oceanography and atmospheric science, tehran, iran abolfazl saleh department of marine living science, ocean sciences research center, iranian national institute for oceanography and atmospheric science, tehran, iran jahangir vajed samiei department of marine living science, ocean sciences research center, iranian national institute for oceanography and atmospheric science, tehran, iran mehri seyed hashtroudi department of marine living science, ocean sciences research center, iranian national institute for oceanography and atmospheric science, tehran, iran

the lipid content and composition of the reef-building coral acropora downingi, the largest coral reef of hengam island, were examined throughout a year. the results showed that the lipid content of a. downingi significantly differs in different seasons (t-test, p< 0.05). depending on the season and spawning times, the lipid content of a. downingi ranged from 16.5 to 37.7 % (dry weight). the to...

ژورنال: اقیانوس شناسی 2022

Background and Theoretical Foundations: Coral reefs are one of the world's most attractive ecosystems. They have been covering large parts of the world in the tropic areas. Coral reefs in the Iranian waters of the Persian Gulf are largely limited to the Islands. Many factors, including natural and anthropogenic activities cause stress to the reef communities affecting reef development. Coral bl...

2017
Martijn Dorenbosch Monique G. G. Grol Ivan Nagelkerken Gerard van der Velde

Coral reefs and seagrass beds are often located adjacent to one another, but little is known about the degree to which their fish communities are interlinked. To determine whether coral reef fishes on the coral reef are interlinked with or segregated from fishes on adjacent seagrass beds, a 60 m coral reef–seagrass gradient was studied on the island of Zanzibar in the western Indian Ocean. Usin...

Abolfazl Saleh, Ali Mehdinia, Jahangir Vajed Samiei, Mehri Seyed Hashtroudi, Neda Sheijooni Fumani,

The lipid content and composition of the reef-building coral Acropora downingi, the largest coral reef of Hengam Island, were examined throughout a year. The results showed that the lipid content of A. downingi significantly differs in different seasons (t-test, P< 0.05). Depending on the season and spawning times, the lipid content of A. downingi ranged from 16.5 to 37.7 % (dry weight). The to...

2009
B. Gintert N. Gracias A.C.R. Gleason D. Lirman M. Dick P. Kramer R. P. Reid

Efficient survey methodologies that provide comprehensive assessment of reef condition are fundamental to coral reef monitoring. Current state-of-the-art techniques in coral reef assessment rely on highly trained scientific divers to measure indices of reef health (e.g., substrate cover, species richness, coral size, coral mortality). First-generation video mosaics were an innovative survey tec...

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