نتایج جستجو برای: margalef d

تعداد نتایج: 577766  

Journal: :Applied environmental biotechnology 2023

Tilapia is the second most farmed fish in tropical and sub-tropical countries worldwide. This study investigated effect of replacing meal by Spirulina platensis (groups fed with 5%, 10% 15% Spirulina) on growth Nile tilapia O. niloticus juveniles. Intestinal microbiota has been studied MiSeq Illumina sequencing. No significant differences (P > 0.05) were observed for protein, carbohydrate li...

Journal: :Anais Da Academia Brasileira De Ciencias 2021

Abstract The use of agrochemicals in agriculture may impact aquatic ecosystems, particularly influencing the stream insect communities. Among insects, family Chironomidae is most abundant and species-diverse group found freshwater ecosystems. However, southern hemisphere, studies with are still sparse, compared to Europe North America. present study evaluates responses species (Insecta: Diptera...

Journal: :IOP conference series 2023

Abstract Insects are the most abundant group of animals compared to other animal groups, this is related high adaptability insects various types habitats. This study aims analyze diversity soil surface and arboreal ( nocturnal diurnal ) on bitti stands Vitex cofassus in Belabori Village, Parangloe District, Gowa Regency. Data collection was carried out for 2 months starting from October Novembe...

Journal: :Revista Caatinga 2021

ABSTRACT The objective of this study was to characterize, through faunistic indices, the populations fruit flies in Brejo Paraibano microregion and analyze whether these are similar one another. conducted eight municipalities located Agreste mesoregion microregion, Paraíba state, Brazil, where two rural properties each municipality were selected, georeferenced identified according diversity cri...

Journal: :Diversity 2022

Many reports have demonstrated that the removal of aquaculture purse seine is conducive to restoration aquatic vegetation and improvement in water quality, but less attention has been paid effects on phytoplankton. This paper addressed response phytoplankton community structure after Caizi Lakes. The results showed average dissolved oxygen (from 7.43 ± 0.25 mg/L 9.12 0.49 mg/L) Secchi depth 28....

Journal: :Brazilian journal of biology = Revista brasleira de biologia 2004
G Velasco E G Reis

The somatic and populational growth of living organisms is affected directly and indirectly by the environment (Nikolskii, 1969; Weatherley, 1972; Pauly, 1984; Margalef, 1995). A direct effect is metabolism change (much more apparent in ectotherm organisms); indirect effects include variable food availability and differing vulnerability to predation since temperature and other physical variable...

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