نتایج جستجو برای: cyanophyceae

تعداد نتایج: 219  

2010
Y. Chandrika

Bacteria and allied micro-organisms are of direct economic concern to man in many ways besides causing diseases and bringing about the decomposi tion of marine a,nimals and commercial algae . There are many p roblems in the general economy of the ocean , the solu tio n of which requi res the a id of the microbio log ist. The m ic ro-organisms belong to a wide range of groups and include bacteri...

A. Eimanifar , F. Mohebbi , H. Negarestan , L. Esmaeili Dahesht , R. Ahmadi ,

   Urmia Lake is one of the two large hypersaline lakes in the world which have Artemia. It is located in northwest of Iran. Due to a decrease in water inflow and volume, the salinity of Urmia Lake has reached to more than 300 g.l-1 since 2001. The increased salinity has greatly influenced biological aspects of the lake, and caused the lake undergoes at critical conduction. The aim of the prese...

Journal: :Iraqi journal of science 2021

Phytoplankton, as one of the most important primary producers in aquatic ecosystems, has been widely used to indicate health ecosystems. Nine physico-chemical parameters water, well phytoplankton community, Al-Chibayish marsh were studied. Samples collected from four sites and analyzed every two months January October 2019.
 Seasonal variations physical chemical properties observed at all ...

Journal: :International journal of applied research 2023

The present studies were made on the enumeration of phytoplankton with respect to physico-chemical parameters in Tumbadi Lake Koratagere state Karnataka. Composite water samples collected from designated stations at surface level during summer, winter and rainy seasons January 2020 December 2020. Total 49 species identified under 31 genera belonging 5 different taxonomic groups seasonal maxima ...

Journal: :Sriwijaya journal of environment 2023

Tarakan City is a city that has potential natural resources to be developed. One of the areas in town Tanjung Pasir, where residents live coastal area. This study aims determine quality waters dune by using plankton community structure as water bioindicator. As research object, Plankton communities Pasir include abundance, diversity index, uniformity and dominance index. uses quantitative descr...

Journal: :Jurnal Sosial dan Teknologi 2023

Fitoplankton memiliki peran sebagai produsen primer di perairan. juga dapat menjadi biota indikator dalam mengukur tingkat kesuburan suatu Keberadaan fitoplankton diperairan akan menarik pemakan (konsumen I), selanjutnya konsumen I dimangsa II dan seterusnya sampai teratas. Tujuan penelitian ini untuk memahami serta mempraktikkan prosedur sampling Waduk Ir. H. Djuanda pengamatan Laboratorium La...

Journal: :Journal of Threatened Taxa 2023

During the systematic investigation on cyanobacterial diversity of eastern Himalaya authors recorded two unique species Petalonema M.J.Berkeley ex Wolle—Petalonema alatum (Borzì Bornet & Flahault) Wolle and velutinum Migula—from Alipurduar Kalimpong. The former was in calcareous situations forming thick mats while latter subaerophytic condition wet rocks. is first record for a India.

ژورنال: :اقیانوس شناسی 0
احسان عابدی ehsan abedi پژوهشگاه ملی اقیانوسشناسی و علوم جوی مهشید جلیلی mahshid jalili پژوهشگاه ملی اقیانوسشناسی و علوم جوی

هدف از این مقاله مقایسه ترکیب جوامع فیتوپلانکتون در فصلهای زمستان 92 و تابستان 93 و همچنین در امتداد خور بردستان و آبهای دریایی پیرامون آن در خلیج فارس است. نمونه برداری در اسفند ماه 92 و مرداد ماه 93 توسط بطری نیسکین و با استفاده از یک قایق صیادی انجام شد. 9 ایستگاه در خور و 9 ایستگاه در آبهای به ترتیب در خور و آبهای (±se) دریایی پیرامون خور انتخاب گردیدند. میانگین فراوانی فیتوپلانکتونها cell ...

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