Govt. College of Arts,Science & Commerce, Khandola, Marcela-Goa
Accredited by NAAC with Grade A+ (CGPA: 3.43)
Institutional Digital Repository
Powered by National Digital Library of India (NDLI)
Communities in DSpace
Select a community to browse its collections.
Recent Submissions
Mangrove-Associated Molluscan Diversity along Chapora and Sal Estuaries of Goa, West Coast of India
(2024) Bhat, Mithila; Ravinesh, R; Padate, Vinay; Rivonker, Chandrashekher
The estuarine shores of Goa feature diverse habitats, including mangroves, sandy, muddy and rocky shores, which support a variety of molluscan assemblages. The present study is an attempt to provide baseline data on the molluscan fauna from the mangrove-associated regions of the Chapora and Sal estuaries in North and South Goa respectively. Intertidal sampling at two selected stations each in Chapora and Sal estuaries were carried out during low tide at monthly intervals from April 2016 to March 2017. The survey revealed a total of thirty-five species belonging to thirty genera from two classes (Gastropoda and Bivalvia), thirteen orders, and twenty-three families of molluscs. Thirteen species including seven species of gastropods and six species of bivalves were recorded for the first time from Goa. The family Veneridae with the commercially important bivalves Pelecyora katiawarensis, Meretrix aurora, M. casta, Marcia opima, M. recens formed the most speciose group. Cassidula nucleus and Platevindex martensi were found on the trunks and roots of mangroves, whereas Indian backwater oyster Magallana bilineata and the hooded oyster Saccostrea cucullata were commonly found at all the four locations. Littoraria pallescens was typically found on the leaves and roots of mangroves especially on the Rhizophora spp. The micro gastropod Optediceros breviculum recorded from the mangrove associated muddy habitats was one of the new records to Goa. It is imperative that the updated database is an integral part of the taxonomy to strengthen the molluscan database. Further, continuous monitoring is necessary considering rapid coastal development and associated rise in pollution.
Redescription of Pseudograpsus intermedius Chhapgar, 1955 (Decapoda, Brachyura, Varunidae) from India
(Magnolia Press, 2022) Ng, Ngan Kee; Trivedi, Jigneshkumar N; Bhat, Mithila
The identity of Pseudograpsus intermedius Chhapgar, 1955 (Varunidae), a crab species found in mangrove habitats of India is clarified. The re-examination of the holotype male and examination of fresh specimens collected from Goa State, India, revealed that P. intermedius shows significant morphological differences from the generic characters of Pseudograpsus. As such, a new genus Chhapgarus n. gen. is established for the species.
First record of Metopograpsus cannicci Innocenti, Schubart and Fratini, 2020 (Crustacea: Decapoda: Grapsidae) from India
(Lorestan University, Iran, 2021) Bhat, Mithila; Patel, Krupal J.; Trivedi, Jigneshkumar N.
Metopograpsus cannicci Innocenti, Schubart and Fratini, 2020 is distributed in the Red Sea, Iran, along the East African coast, Seychelles, Madagascar, and Mauritius. The present paper reports this species for the first time from India indicating its eastward extension.
New diclofenac salts with the dense hydrogen bond donor propane-1,3-diaminium
(Royal Society of Chemistry, 2024) Breckell, Jaxon R.; Conte, Luke; Potts, Michael W.; Sawant, Pradnya S.; Butcher, Raymond J.; Vernekar, Beena K.; Richardson, Christopher
A series of solvatomorphic structures of the anti-inflammatory drug diclofenac (dcfn−) and the dense hydrogen bond donor propane-1,3-diaminium (H2pn2+) are reported. Single crystal X-ray diffraction shows each structure contains a dcfn2·H2pn formula unit (1) with solvent of crystallisation [1·2H2O, 1·3H2O, 1·2MeOH, 1·EtOH·2H2O, 1·iPrOH, 1·2DMSO]. The propane-1,3-diaminium molecules evoke extensive networks of hydrogen-bonded interactions with the solvates and the dcfn carboxylate groups. All structures are lamellar with hydrophilic solvate-containing sheets separating hydrophobic layers of aromatic dcfn moieties. Supporting characterisations by powder X-ray diffraction, Fourier transform infrared and 1H NMR spectroscopies, thermal analysis (TG–DSC) and elemental microanalysis were used to reveal the sometimes delicate phase distributions amongst this set of compounds. TG–DSC showed a consistent pattern across the water and alcohol-containing compounds with desolvation occurring before melting to an anhydrous ionic liquid form around 140–150 °C. Heating to approximately 200 °C induces a minor dehydration reaction that covalently links diclofenac and propan-1,3-diaminium molecules via amide bond formation. A mechanochemical synthetic route to 1·3H2O was determined and this compound was selected for study by gravimetric water vapour adsorption. These studies showed the lamellar structure of 1·3H2O displays reversible but imperfect water adsorption between 0% and 50% relative humidity, which is ascribed to some crystal fatigue. This work expands crystal engineering strategies for new and existing active pharmaceutical ingredients to low molecular weight diamines.
Challenges & Opportunities of Infrastructure Development of an Island Village: A Case Study of Chodan Island in Goa
(ESI Publications, 2021) Salgaonkar, Seema P.; Gaded, Akbar
Reliable and effective infrastructure remains a major challenge in the villages. The scenario is still more grim for Island villages which often remain isolated from the mainland. Lack of
infrastructure and favourable improvement escalates and create many hardships affecting the productive life of the villagers. This paper highlights the infrastructural needs of the Island village and how lack of infrastructure, specifically, adequate and timely transport facility, adversely affect the villagers.