Phytoplankton metrics for trophic and ecological status assessment of a natural karstic lake
نویسندگان
چکیده
According to the Water Framework Directive (WFD), biological quality elements constitute basis for assessing ecological status of surface waters. Biological communities are good indicators water because they reflect environmental conditions over time and do not require frequent sampling. The main aims were assess trophic Lake Visovac (Krka River hydrosystem, South Croatia) using phytoplankton together with supportive physico-chemical parameters, eutrophication impact indicators. We also tested viability Chlorophyll-a (Chl-a) Hungarian Phytoplankton Index (HLPI) as proposed metrics in standard regulatory monitoring procedure. samples, Chl-a physical- chemical parameters taken on a monthly from April September 2016 2019. In 2016, most dominant species was Pantocsekiella ocellata (Pantocsek) K.T.Kiss & Ács, while 2019 it accompanied by Ceratium hirundinella (O.F.Müller) Dujardin. Chl-a, within limits oligo- mesotrophic status. Based HLPI index, assessed Good. showed statistically significant positive correlation temperature, positively correlated oxygen Secchi depth. propose use rapid bioassessment weekly basis, whilst more complex index should be applied monthly. Further improving confidence level used comprehensive revision boundaries included is fundamental importance.
منابع مشابه
diagnostic and developmental potentials of dynamic assessment for writing skill
این پایان نامه بدنبال بررسی کاربرد ارزیابی مستمر در یک محیط یادگیری زبان دوم از طریق طرح چهار سوال تحقیق زیر بود: (1) درک توانایی های فراگیران زمانیکه که از طریق برآورد عملکرد مستقل آنها امکان پذیر نباشد اما در طول جلسات ارزیابی مستمر مشخص شوند; (2) امکان تقویت توانایی های فراگیران از طریق ارزیابی مستمر; (3) سودمندی ارزیابی مستمر در هدایت آموزش فردی به سمتی که به منطقه ی تقریبی رشد افراد حساس ا...
15 صفحه اولTrophic status and fish production potential of Golbolagh Lake (West of Kurdistan Province)
The estimation of fish potential production and trophic status are two important and necessary parts of fisheries management in lakes. This study was conducted to determinate the trophic status and fish production potential of Golbolagh Lake, for one year from October 2013 to September 2014. Physicochemical parameters and other necessary data such as chlorophyll a, phytoplankton phylum dominanc...
متن کاملAssessment of Carson Trophic Index in Dam Lake: a Case Study of Ekbatan Dam
Background and purpose: The study aimed to investigate the trophic state of Ekbatan Dam Lake. In the current research, the quality of water behind the dam was studied during the months July and January in order to compare the trophic state and zonation of the reservoir in two different seasons (dry and wet). Materials and Methods: 15 sites were selected in different points of Ekbatan Dam Lak...
متن کاملResearch Article: Trophic status index and natural fisheries potential of some Iranian reservoirs
The Iran Water Resources Management Company constructs many dams to control surface water that provide a new potential for aquaculture activities. Trophic status index and natural potential for fish production were investigated in nine small dam reservoirs from northwest of Iran. Prediction of fish productivity was calculated based on phytoplankton biomass (using chlorophyll a concentration in ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Acta Botanica Croatica
سال: 2022
ISSN: ['0365-0588', '1847-8476']
DOI: https://doi.org/10.37427/botcro-2022-016