نتایج جستجو برای: porites compressa

تعداد نتایج: 848  

2014
Emilia M. Sogin Paul Anderson Philip Williams Chii-Shiarng Chen Ruth D. Gates

In light of global reef decline new methods to accurately, cheaply, and quickly evaluate coral metabolic states are needed to assess reef health. Metabolomic profiling can describe the response of individuals to disturbance (i.e., shifts in environmental conditions) across biological models and is a powerful approach for characterizing and comparing coral metabolism. For the first time, we asse...

2015
Mary Hagedorn Ann Farrell Virginia Carter Nikolas Zuchowicz Erika Johnston Jacqueline Padilla-Gamiño Sarath Gunasekera Valerie Paul

Studies have identified chemicals within the stony coral genus Montipora that have significant biological activities. For example, Montiporic acids A and B and other compounds have been isolated from the adult tissue and eggs of Montipora spp. and have displayed antimicrobial activity and cytotoxicity in cultured cells. The ecological role of these toxic compounds is currently unclear. This stu...

ژورنال: اقیانوس شناسی 2013
بلوکی, مهدی, دانشمند, علی, رونق, محمد تقی, سواری, احمد, نبوی, محمد باقر,

آبسنگ‌های مرجانی دارای رابطه همزیستی با جلبک (zooxanthellae) می باشند که ریختن مداوم آلاینده‌های انسان ساز به داخل محیط زیست آبی و اثرات تغییر جهانی آب و هوا، سلامتی مرجان‌ها را با به خطر انداختن این رابطه همزیستی تهدید می‌کند. هدف از این بررسی اندازه‌گیری تراکم زوگزانتلا در مرجان‌های Porites compressa به‌منظور بررسی وضعیت سلامت آبسنگ‌های مرجانی در منطقه‌ی شمال خلیج نایبند و جنوب خلیج نایبند اس...

Journal: :The Biological bulletin 2009
Caroline V Palmer Melissa S Roth Ruth D Gates

Reports of coral disease have increased dramatically over the last decade; however, the biological mechanisms that corals utilize to limit infection and resist disease remain poorly understood. Compromised coral tissues often display non-normal pigmentation that potentially represents an inflammation-like response, although these pigments remain uncharacterized. Using spectral emission analysis...

2008
JAMES R. CHESS DANIEL F. HOWARD

Annual assessments of reef communities at Kona, Hawai'i, from 1985 to 1995 determined that the corallivorous sea star Acanthaster planci preferred as prey the smaller colonies of Pocillopora meandrina over the far more abundant Porites compressa and P. lobata. This finding came from three distinct settings: a Reef-Top habitat, where large (> 15 em) colonies of Pocillopora meandrina were dominan...

Journal: :Diseases of aquatic organisms 2012
H Angermeier V Glöckner J R Pawlik N L Lindquist U Hentschel

We report on a novel sponge disease, hereafter termed 'sponge white patch' (SWP), affecting the Caribbean sponge species Amphimedon compressa. SWP is characterized by distinctive white patches of variable size that are found irregularly on the branches of diseased sponges. Nearly 20% of the population of A. compressa at Dry Rocks Reef, Florida, USA, showed symptoms of SWP at the time of investi...

2011

Taxonomy Taxonomic issues: Porites is known to be morphologically plastic and multiple sympatric species frequently exhibit intergradation of skeletal characteristics. Only limited molecular genetic analysis has been performed on the Porites thus far. In the most comprehensive, Forsman et al. (2009) identified inseparable clades that contain multiple morphological species, in some cases with mo...

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