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Wyszukujesz frazę "bioindicator" wg kryterium: Temat


Wyświetlanie 1-2 z 2
Tytuł:
Abundance and diversity profile of invertebrate macro benthic faunal components in a coastal ecosystem of Eastern India
Autorzy:
Ghosh, Srinjana
Rupendu, Ray
Chowdhury, Suchandra
Powiązania:
https://bibliotekanauki.pl/articles/1177469.pdf
Data publikacji:
2018
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Anthropogenic interactions
Bioindicator
Coastal biodiversity
Conservation
Marine invertebrate fauna
Tourism
Urbanizing parameters
Opis:
The Chandipore beach, situated in Balasore district, Odisha, 21°28΄N 87°01΄E / 21.47°N and 87.02°E shows an interesting nature of wave action as the water recedes up to an average of 5 kilometres during the ebb and tide, resulting in a vast, dynamic array of coastal biodiversity. It gets exposed to a huge tourism load every year and is faced with multidimensional anthropogenic interactions manifested through a varying gradient of urbanizing parameters like cattle grazing, automobile exhaust, constructions in vicinity of beach area, sewage and solid disposals etc. Present piece of work aims at documenting the premonsoon abundance and diversity of marine invertebrate fauna in this eastern Indian sea beach. Adamsia palliata, Carcinoscorpius rotundicauda, Diogenes rectimanus, Sabella sp., Astropecten mauritianas were found to be few of the prominent faunal representatives. Significant differences in respect of species richness have been observed among different selected ecozones through the coastal landscape based on tidal activity and anthropogenic exposure (F5.73, p ≤ 0.05). Such type of field-based observations leads to the scope of further estimation of the ecological status of these native organisms, their intra and inter-specific associations and functional contributions to coastal landscape playing role as a potential bioindicator, which may in turn become instrumental in frame working the future conservation scheme of these natural assets.
Źródło:
World Scientific News; 2018, 102; 59-75
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Biomonitoring with special reference to leaf and pollen morphology in Cassia sophera L. to detect roadside air pollution
Autorzy:
Talukdar, Partha
Dutta, Ankita
Powiązania:
https://bibliotekanauki.pl/articles/1167061.pdf
Data publikacji:
2018
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Air pollution
Bioindicator
Biomonitoring
Cassia sophera
Leaf morphology
Pollen micro-morphology
Visible injuries on leaf
Opis:
The aim of biomonitoring study was to detect morphological deformities in leaf and pollen micro-morphology of Cassia sophera Linn. after exposure to vehicular air pollution. The study areas were selected based on three different roadsides such as control area designated as “C” at Serampore college campus as low vehicular movement area, Bi-lane roadside away 1.5 Km from Durgapur expressway as moderate vehicular movement designated as “M” and roadside near Durgapur Expressway designated as “H” because of continuous vehicular movements. Present studies attempted on Cassia sophera exposed to different levels of roadside air pollution were used to detect varying degrees of damage produced in its morphological characters with special reference to leaf shape and visible injuries as well as micro-morphological features of pollens at wet and dry conditions. In results, the damages were observed noticeable with chlorotic spots, necrosis, etc. It was not only showed morphological damage in leaf but also huge differences in the production of viable pollens with plants exposed to high levels of air pollution showed pollen production with no material content inside as well as with significantly (P<0.001 and P<0.01) reduced sizes compared to the plants exposed to low levels of air pollution. It is concluded that varying degrees of air pollution produces a huge impact at sub cellular, cellular and tissue levels. This biomonitoring study helps to know the alarming condition of roadside air pollution. Moreover, it can not be identified the effect of an individual or combination of air pollutant(s) such as particulates or CO or CO2 or SO2 or NOx or PAN or O3, etc. It is suggesting to further study with instruments to detect the load of air pollutants with special reference to particulates and gaseous pollutants.
Źródło:
World Scientific News; 2018, 105; 168-181
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-2 z 2

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