Research Article: Evaluation of biodiversity of phytoplankton and determination of biological health quality of Arvand River (south west of Iran) using Trophic Diatom Index (TDI)
Publish place: Iranian Journal of Fisheries Sciences، Vol: 21، Issue: 4
Publish Year: 1401
نوع سند: مقاله ژورنالی
زبان: English
View: 103
This Paper With 17 Page And PDF Format Ready To Download
- Certificate
- من نویسنده این مقاله هستم
استخراج به نرم افزارهای پژوهشی:
شناسه ملی سند علمی:
JR_JIFRO-21-4_011
تاریخ نمایه سازی: 18 مهر 1401
Abstract:
Phytoplankton is considered the primary producer of any ecosystem and is sensitive to environmental changes. Therefore, phytoplankton is a suitable indicator for evaluating river water quality. Change of the environment leads to changes in abundance, diversity, and dominance of phytoplankton communities. Six stations were selected from beginning of Arvand River (the point of tributary from Karun River, station ۱) to the sea estuary (in Arvand Kenar, station )۲۰۱۵-۲۰۱۶). Phytoplankton sampling was conducted using a plankton net with ۳۰-μm mesh size, with three replications in each station. Meanwhile, temperature, salinity, pH, dissolved oxygen (in field operations), nitrate and phosphate were measured in the laboratory with three replications. The results showed that ۴۳ phytoplankton species were present in the sampling area. Ochrophyta division was most abundant with ۳۲ species, followed by four divisions Chlorophyta (۵ species), Cyanobacteria (۳ species), Myzozoa (۲ species), and Charophyta (۱ species). The most dominant species in different seasons were Coscinodiscus marginatus from Bacillariophyceae, followed by Oscillatoria sp. from Cyanophyceae and Ulothrix aequalis from Chlorophyta. Mean total value of diatom trophic index was calculated to be ۶۲.۳۱+۳.۰۹ during the study period, indicating poor quality of the ecosystem and eutrophic condition. According to the results of correlation analysis (PCA), phosphate content was one of the most important factors affecting abundance and diversity of phytoplankton.
Keywords:
Authors
F. Amini
Assistant professor of khoramshahr university of science and technology
N. Sakhaei
Associat professor of khoramshahr university of science and technology
B. Archangi
Associat professor of khoramshahr university of science and technology
Ali Mokhtarpour
General Administration of Ports and Shipping of khorramshahr
مراجع و منابع این Paper:
لیست زیر مراجع و منابع استفاده شده در این Paper را نمایش می دهد. این مراجع به صورت کاملا ماشینی و بر اساس هوش مصنوعی استخراج شده اند و لذا ممکن است دارای اشکالاتی باشند که به مرور زمان دقت استخراج این محتوا افزایش می یابد. مراجعی که مقالات مربوط به آنها در سیویلیکا نمایه شده و پیدا شده اند، به خود Paper لینک شده اند :