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Showing 2 results for Goswami
Spatio-temporal comparison of intertidal macrofaunal communities along anthropogenically influenced Mandvi coast, Gulf of Kachchh, India
Pranav Pandya, Mansi Thakkar, Mansi Goswami,
Volume 3, Issue 2 (6-2021)
Abstract
Natural and human disturbances can affect population and community assemblages in complex ways. The present study was carried out from June 2019 to January 2020, along the Northern Gulf of Kachchh (can also be spelled as Kutch), western India wherein an effort was made to investigate the intertidal assemblage at three distinct but spatially closely located stations (Kathda, Mandvi, and Modhva). The efforts were also made to correlate anthropogenic effects with intertidal assemblage. The Mandvi station served as an anthropogenically active area whereas the other two remained as control stations with minimal disturbance. Replicate quadrat samples on fixed transect lines and wet biomass analyses were carried out for three seasons. In total, 43 species, viz. Mollusca (21), Crustacea (12), Polychaeta (7), Nemertea (1), and fishes (2) were recorded. Cumulatively, during pre-monsoon, post-monsoon and winter, overall population densities ranged from 0 to 999 individuals/m2; biomass from 0 to 899 g/m2, and the Simpson evenness index score remained between 0.15 to 0.89. Overall, high density and diversity were observed during winter (December 2019 and January 2020) with the maximum number of two Mollusc species Umbonium vestiarium and Cerethidia cingulata. High densities were observed at the Modhva station followed by Kathda and Mandvi stations. Relatively lower intertidal macrofaunal diversity and density were clearly observed at Mandvi station which is a famous tourist destination. Comparative data recorded in the present study can serve as a vital baseline and can be a part of future monitoring processes, especially at anthropogenically influenced stations.

Study of winter avifauna diversity from a man-made reservoir in the West Bengal, India
Debayan Gayen, Biswajit Mukherjee, Sanchari Sarkar, Bappa Goswami, Sagar Adhurya, Moitreyee Chakrabarty,
Volume 4, Issue 1 (3-2022)
Abstract
The present study was conducted to determine the winter avifauna diversity of the Bakreswar Reservoir, Birbhum district, West Bengal from November 2017 to February 2021 using point count and opportunistic spotting. A total of 174 species of birds belonging to 18 orders, 47 families and 115 genera were noted during the study of which the family Anatidae was the most dominant family with 21 species, followed by the Accipitridae with 19 species, and the Motacillidae and Ardeidae with 10 species each. The Lesser whistling teal Dendrocygna javanica, Red-crested pochard Netta rufina and Bar-headed goose Anser indicus were the most abundant species during the winter months. Four Vulnerable species and five Near Threatened species were also recorded in the study area. Various diversity indices indicated that the species assemblage in 2019–2020 was more diverse than other years. Some species, such as the Common shelduck Tadorna tadorna (Linnaeus, 1758), Swinhoe’s minivet Pericrocotus cantonensis Swinhoe, 1861, Eurasian sparrowhawk Accipiter nisus (Linnaeus, 1758), Pallas’ gull Ichthyaetus ichthyaetus (Pallas, 1773), Black-headed gull Chroicocephalus ridibundus (Linnaeus, 1766), Hen harrier Circus cyaneus (Linnaeus, 1766) and Bonelii’s eagle Aquilla fasciata Vieillot, 1822, are recorded for the first time from this region. Various threats like habitat destruction, habitat degradation and hunting of migratory and threatened birds pose the major problems in the study location.

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