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Journal articles on the topic 'West coast- India'

Author: Grafiati

Published: 6 September 2023

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1

Rashiba, A. P., K. Jishnu, H. Byju, C. T. Shifa, Jasmine Anand, K. Vichithra, Yanjie Xu, et al. "The Paradox of Shorebird Diversity and Abundance in the West Coast and East Coast of India: A Comparative Analysis." Diversity 14, no. 10 (October 20, 2022): 885. http://dx.doi.org/10.3390/d14100885.

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Migratory shorebirds that move across continents along their flyways are undergoing a drastic decline globally. A greater proportion of them that regularly winter along the Indian coasts within the Central Asian Flyway (CAF) are also undergoing severe declines. However, the mechanisms underlying the population trends in these areas remain little understood. This study investigated the diversity, abundance, population dynamics and distribution patterns of shorebirds along the Indian coasts based on the available literature. The west coast of India is relatively less studied than the east coast in the CAF. Further, we observed that the diversity, abundance, population dynamics and distribution pattern of the shorebirds follow different trends on the west coast compared to the east coast. These variations are in accordance with the differences in topography and biotic and abiotic factors between the coasts. Anthropogenic activities have far-reaching effects on the survival and persistence of shorebirds along the coasts. The west coast is evidently more productive than the east coast at every trophic level and thus the west coast is expected to account for more abundance and diversity of shorebirds. Paradoxically, we found that the east coast supports a greater abundance and diversity of shorebirds than the west coast. The west coast, therefore, requires further investigations to obtain a better understanding of the causes of apparent differences in abundance and diversity as well as the observed declines in shorebirds, compared to the east coast of India.

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2

LAL, ASOI, and RAJENDRA PRASAD. "Influence of southern hemispheric frontal systems on the Southwest monsoon rainfall over the west coast of India during Monex-79." MAUSAM 41, no. 3 (February 24, 2022): 33–38. http://dx.doi.org/10.54302/mausam.v41i3.2719.

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The possible influence of frontal systems moving across southern Africa and adjoining southwest Indian Ocean on the rainfall activity over west coast of India during MONEX-79 has been investigated by using correlation and regression technique. The results suggest possible cross hemispheric linkages between the frontal systems and rainfall over the middle and southern parts of the west coast of India during MONEX-79.

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3

Pouyet, Simone, and Nayaz Ahmed Shareef. "Bryozoa from Karnataka, West Coast of India." Neues Jahrbuch für Geologie und Paläontologie - Monatshefte 1995, no. 7 (July 1, 1995): 413–29. http://dx.doi.org/10.1127/njgpm/1995/1995/413.

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4

Kumar, V. Sanil, G. Udhaba Dora, C. Sajiv Philip, P. Pednekar, and Jai Singh. "Nearshore Currents along the Karnataka Coast, West Coast of India." International Journal of Ocean and Climate Systems 3, no. 1 (March 2012): 71–84. http://dx.doi.org/10.1260/1759-3131.3.1.71.

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Measured current data at 7 locations and tide data at 3 locations during the pre-summer monsoon period along the west coast of India is used in the study. The surface currents during March showed a predominant northward trend and during April it was towards south. Estimated tidal currents were upto 25 cm s−1 with an average value of 8 cm s−1. Current tidal form number varied from 0.56 to 1 at different locations indicating currents are mixed. M2 and S2 tidal current constituents rotated clock wise at all location. Near surface, the alongshore current was 2.6 to 5.9% of the alongshore wind and near bottom it was 1.9 to 3.6% of the alongshore wind.

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5

GOWDA, Jeevan, Anwesha BEHERA, Annam Pavan KUMAR, and Ashok JAİSWAR. "First Record of Rhynchorhamphus naga Collette, 1976 (Beloniformes: Hemiramphidae) From Kerala, India, South Eastern Arabian Sea." Marine Science and Technology Bulletin 11, no. 4 (December 31, 2022): 533–39. http://dx.doi.org/10.33714/masteb.1182270.

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Species, under the genus Rhynchorhamphus (Family: Hemiramphidae), are widely distributed marine groups of fishes. Among four species described from India, only two species, i.e., Rhynchorhamphus georgii and R. maabarica, are reported along the Indian coast. However, during the present study, a specimen collected from the Western Indian Ocean, Chetty harbour, Kerala, the south-west coast of India, has been identified as Rhynchorhamphus naga (Collette, 1976), based on morphology and molecular characters. The species is characterized by D-14; A-14; Pec-9; Pev-6; GR-50 and a prolonged beak (171.82% HL). The species has been reported from Western Central Pacific and several other countries like Brunei Darussalam, Cambodia, Malaysia, Philippines, Singapore, Thailand and Vietnam considered to be endemic to that region. This finding reveals that the species has a wider distribution, as we recorded the species from Kerala, south-west coast of India along the Indian Ocean.

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6

Niraj, P. S., R. Balaji, and P. Vethamony. "Pre-monsoon hydrodynamic modeling of Goa coast, West coast of India." ISH Journal of Hydraulic Engineering 21, no. 3 (March 13, 2015): 276–86. http://dx.doi.org/10.1080/09715010.2015.1017747.

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7

TRIVEDI, JIGNESHKUMAR N., DHRUVA J. TRIVEDI, KAURESH D. VACHHRAJANI, and PETER K. L. NG. "An annotated checklist of the marine brachyuran crabs (Crustacea: Decapoda: Brachyura) of India." Zootaxa 4502, no. 1 (October 19, 2018): 1. http://dx.doi.org/10.11646/zootaxa.4502.1.1.

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An annotated checklist of the marine brachyuran crabs occurring in India is compiled from published literature and augmented by collections between 2005 and 2015. A total of 910 species belonging to 361 genera and 62 families are herein listed from Indian waters. Specimens representing 130 species were obtained from Gujarat state during 2005 and 2015, of which 23 are new records to Gujarat state and two species are reported for the first time from the west coast of India. The highest number of species were recorded from the Andaman and Nicobar islands (588 species) while the smallest number were from Goa and Karnataka state (82 species). The records indicate that the east coast of India, with 803 species, is more diverse than the west coast, which has 446 species.

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8

Roy, Anirban. "Wet and Dry Coastal Plant Communities of West Bengal, India." International Journal of Chemical and Environmental Sciences 3, no. 4 (July 4, 2022): 30–33. http://dx.doi.org/10.15864/ijcaes.3403.

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The coast, marine and terrestrial interface, is one of the important biogeographic regions of India due to its immense economic and ecological services. It is broadly divided into two major systems on the basis of topography and geomorphology: dry coastal ecosystem and wet coastal ecosystem. The dry coast constitutes, i) Sandy coast with sandy beach and sand dunes and, ii) Rocky coast having rocks and vertical cliffs, devoid of beach and dunes. Indian coastline with 7,500 km mostly covers dry sandycoast in eastern region and there are present dry rocky coast in western part. The wet coastal ecosystem is connected with lagoons, backwaters, estuary and deltas. The characteristics as well as types of vegetation in these two zones have been presented in a brief way. The present communication is an attempt to highlight the formation of various plant communities, specially, throughput the coast of Bengal on basis of field exposure and published contributions of previous workers in these fields.

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9

Rameshkumar, Ganapathy, Mathan Ramesh, Samuthirapandian Ravichandran, Jean-Paul Trilles, and Shunmugam Subbiah. "New record of Norileca indica from the west coast of India." Journal of Parasitic Diseases 39, no. 4 (January 21, 2014): 712–15. http://dx.doi.org/10.1007/s12639-014-0416-8.

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10

Davies, Timothy. "English Private Trade on the West Coast of India, c. 1680–c. 1740." Itinerario 38, no. 2 (August 2014): 51–73. http://dx.doi.org/10.1017/s0165115314000357.

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This article explores the private trade networks of English East India Company merchants on the west coast of India during the first half of the eighteenth century. Existing studies of English private trade in the Indian Ocean have almost exclusively focused on India's eastern seaboard, the Coromandel Coast and the Bay of Bengal regions. This article argues that looking at private trade from the perspective of the western Indian Ocean provides a different picture of this important branch of European trade. It uses EIC records and merchants' private papers to argue against recent metropolitan-centred approaches to English private trade, instead emphasising the importance of more localised political and economic contexts, within the Indian Ocean world, for shaping the conduct and success of this commerce.

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11

Gaur, A. S., Sundaresh, S. Tripati, and S. N. Bandodkar. "RINGSTONE ANCHORS FROM GUJARAT, WEST COAST OF INDIA." Mariner's Mirror 88, no. 4 (January 2002): 390–404. http://dx.doi.org/10.1080/00253359.2002.10656859.

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12

Patra, Bidhan Chandra, Manojit Bhattacharya, Avijit Kar, Basanta Kumar Das, Swagat Ghosh, Srikanta Parua, Shampa Patra, and Sudip Rakshit. "Crabs Diversity of Digha Coast, West Bengal, India." Proceedings of the Zoological Society 72, no. 2 (November 14, 2017): 206–10. http://dx.doi.org/10.1007/s12595-017-0251-x.

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13

Karunakara, N., H. M. Somashekarappa, and K. Siddappa. "Natural radioactivity in South West Coast of India." International Congress Series 1276 (February 2005): 346–47. http://dx.doi.org/10.1016/j.ics.2004.11.088.

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14

MARY, ANTHONIPILLAI AROCKIA, THNGAVELU BALASUBRAMANIAN, SHANKER SELVARAJU, and ANTHONIPILLAI SHINY. "Description of a new species of clupeid fish, Amblygaster indiana (Clupeiformes: Clupeidae), off Eraviputhenthurai, west coast of India." Zootaxa 4247, no. 4 (March 28, 2017): 461. http://dx.doi.org/10.11646/zootaxa.4247.4.7.

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A new species, Amblygaster indiana sp. nov., is described from 12 specimens collected from fish landing centers and fish markets at Eraviputhenthurai, west coast of India. The new species can be differentiated from all other species of Amblygaster by its larger size and very deep body, 8 circular-shaped pre-pelvic scutes, different gill rakers counts, large eyes, 40 lateral scales, and peculiar gap between the left and right frontoparietal striae on the top of the head. The new species has been seasonally captured with A. sirm in Eraviputhenthurai and also other coastal waters of the south west coast of India. The proportions of A. indiana sp. nov. and A. sirm in fish catches are approximately 1 to 20. Gillnets and shore seines are used to catch Amblygaster spp. along the Eraviputhenthurai coast and along the coastal zones of south west coasts of India.

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15

Shetty, Balakrishna, Sweekritha Shetty, and Mithun Shetty. "Semitendinosus Tendon Size as Graft and Anthropometry in West Coast Population of India." Indian Journal of Anatomy 8, no. 1 (2019): 12–19. http://dx.doi.org/10.21088/ija.2320.0022.8119.3.

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16

Fernandez, Dominic Ricky, A. Raghunadha Rao, and T. Y. Niji. "Onset and Evolution of Upwelling along the West Coast of India." Defence Science Journal 69, no. 2 (March 6, 2019): 120–26. http://dx.doi.org/10.14429/dsj.69.14223.

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To describe the onset and evolution of upwelling along the south west coast of India, authors collected a series of conductivity temperature depth measurements on board INS Sagardhwani extending from 7 °N – 15 °N during the period extending from February 2017 - October 2017. In this paper we utilised the undulations of the 23 °C isotherm as a proxy to study the upwelling phenomenon. The upward movement of the waters at the southern tip off India (77.5 °E) in the subsurface levels was observed to commence from late February 2017 in depths around 80 m and by the end of May 2017, it is observed to rise rapidly to the surface. The upwelled waters reach the surface during the 2nd week of July all along the Indian coast, and then intensified during August 2017. Beyond 12 °N maximum upwelling is seen in July and thereafter in early August 2017 upwelling was intense till October 2017.

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17

RAY, T. K. "Sea surface temperature and southwest monsoon over India." MAUSAM 42, no. 1 (February 28, 2022): 71–76. http://dx.doi.org/10.54302/mausam.v42i1.2848.

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Importance of sea surface temperature (SST) over the Arabian Sea, Bay of Bengal and the north Indian Ocean is studied in relation with the formation and m1intenan';e of the southwest monsoon over India. SST over southeast Arabian Sea close to the west coast of India becomes maximum before the onset of monsoon over Kerala. Crossing of the equator by southern hemispheric warm water seems to be related with the early or late onset of the monsoon. Magnitude of the difference between SST and air temperature during pre-onset weeks gives valuable hints for early/late and excess/deficient monsoon. A large warm winter mass up to the depth of 100 metres shifts towards the west coast of India before the onset of the monsoon. In 1979, back and forth movement of this water mass seems to be related with the different phases of the monsoon over India.

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18

Bhatt, Dhaval, Santosh Kumar Singh, and Pradeep C. Mankodi. "New record of spot-tail sleeper ray Narke dipterygia (Bloch and Schneider, 1801) (Elasmobranchii, Torpediniformes, Narkidae) from the coast of Gujarat, India." Journal of Fisheries 10, no. 1 (January 21, 2022): 101401. http://dx.doi.org/10.17017/j.fish.342.

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Narke dipterygia (Bloch and Schneider, 1801), commonly known as numb ray, is a widely distributed species in the Arabian Sea and South-East Asian countries. It has been recorded from Oman, Pakistan, Sri Lanka, Malaysia, Singapore, Indonesia, Thailand, Viet Nam, China, Taiwan Province of China and Japan. In India, majority of the findings of the species is from east and west coasts of India, only two records were reported namely Bombay of Maharashtra and Kerala. The present paper confirms the presence of N. dipterygia for the first time from Gujarat coast located on the west coast of India. The diagnostic characteristics and remarks on the taxonomy and distribution of N. dipterygia have been described in this paper.

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19

Gujar, A. R., N. Angusamy, and G. V. Rajamanickam. "Characterization of Opaques off Konkan Coast Maharashtra, Central West Coast of India." Journal of Minerals and Materials Characterization and Engineering 06, no. 01 (2007): 53–67. http://dx.doi.org/10.4236/jmmce.2007.61005.

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20

Sowmya, K., and K. S. Jayappa. "Environmental sensitivity mapping of the coast of Karnataka, west coast of India." Ocean & Coastal Management 121 (March 2016): 70–87. http://dx.doi.org/10.1016/j.ocecoaman.2015.11.024.

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21

Baig, Mumtaz, Sameera Farah, Ashwin Atkulwar, and Jeremy B. Searle. "Genomic Analysis Reveals Subdivision of Black Rats (Rattus rattus) in India, Origin of the Worldwide Species Spread." Genes 13, no. 2 (January 29, 2022): 267. http://dx.doi.org/10.3390/genes13020267.

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In contrast to the detailed and globally extensive studies on the spread of the commensal black rat, Rattus rattus, there has been relatively little work on the phylogeography of the species within India, from where this spread originated. Taking a genomic approach, we typed 27 R. rattus samples from Peninsular India using the genotyping-by-sequencing (GBS) method. Filtering and alignment of the FASTQ files yielded 1499 genome-wide SNPs. Phylogenomic tree reconstruction revealed a distinct subdivision in the R. rattus population, manifested as two clusters corresponding to the east and west coasts of India. We also identified signals of admixture between these two subpopulations, separated by an Fst of 0.20. This striking genomic difference between the east and west coast populations mirrors what has previously been described with mitochondrial DNA sequencing. It is notable that the west coast population of R. rattus has been spread globally, reflecting the origins of commensalism of the species in Western India and the subsequent transport by humans worldwide.

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22

Jasdanwalla, Faaeza. "African Settlers on the West Coast of India: The Sidi Elite of Janjira." African and Asian Studies 10, no. 1 (2011): 41–58. http://dx.doi.org/10.1163/156921011x558619.

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Abstract This paper discusses the political history of the Indian princely state of Janjira on the west coast of India. It was ruled by Sidis (Africans) from the early seventeenth century until the merger of princely states immediately after the independence of India in 1947. The Sidi rulers of Janjira were of African origin, having initially entered India as traders and serving in administrative capacities with the medieval Deccan kingdoms. The emphasis of this paper will be on the manner in which the rulers of Janjira were elected by a group of African Sidi chiefs or Sardars from amongst them for almost two centuries, as opposed to relying on hereditary primogeniture as a system of succession, and the implications that such a system had on the history of Janjira.

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23

Purohit, Barkha, and Kauresh D. Vachhrajani. "New record of the monotypic shrimp genus Procletes (Decapoda:Pandalidae) from the West coast of India." UNED Research Journal 11, no. 3 (December 1, 2019): 292–95. http://dx.doi.org/10.22458/urj.v11i3.2600.

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Introduction: Significant work has been done on the diversity and distribution of pandalid shrimps in Indian waters but reports did not include the presence of this species. Objective: To list the marine shrimps of Gujarat. Methods: Samples were collected from trawl catch. Results: Procletes levicarina is reported for first time from the coastal area of Gujarat, including a detailed morphological description and photographs. This species is previously reported from the east coast of India. Conclusion: Procletes levicarina occurs in the west coast of India.

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24

Kerkar, Jyoti Priyesh, Jaya Kumar Seelam, and Basanta Kumar Jena. "Wave Height Trends off Central West Coast of India." Journal of Coastal Research 89, sp1 (June 1, 2020): 97. http://dx.doi.org/10.2112/si89-017.1.

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25

Elefthriou, A., and D. A. Jones. "The genus Eurydice on the west coast of India." Journal of Zoology 178, no. 3 (August 20, 2009): 385–94. http://dx.doi.org/10.1111/j.1469-7998.1976.tb02276.x.

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26

Badve, R. M., and M. A. Sonar. "Bryozoa cheilostomata from Holocene, West Coast of Maharashtra, India." Geobios 28, no. 3 (January 1995): 317–35. http://dx.doi.org/10.1016/s0016-6995(95)80007-7.

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27

Subrahmanya, K. R. "Tectono-magmatic evolution of the west coast of india." Gondwana Research 1, no. 3-4 (October 1998): 319–27. http://dx.doi.org/10.1016/s1342-937x(05)70847-9.

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28

Wagle, B. G. "Beach rocks of the Central West Coast of India." Geo-Marine Letters 10, no. 2 (June 1990): 111–15. http://dx.doi.org/10.1007/bf02431028.

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29

Shaji, J. "Coastal sensitivity assessment for Thiruvananthapuram, west coast of India." Natural Hazards 73, no. 3 (March 18, 2014): 1369–92. http://dx.doi.org/10.1007/s11069-014-1139-y.

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30

Vinita, J., A. Shivaprasad, N. T. Manoj, C. Revichandran, K. R. Naveenkumar, and V. K. Jineesh. "Spatial tidal asymmetry of Cochin estuary, West Coast, India." Journal of Coastal Conservation 19, no. 4 (August 2015): 537–51. http://dx.doi.org/10.1007/s11852-015-0405-9.

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31

Vinita, J., C. Revichandran, and N. T. Manoj. "Suspended sediment dynamics in Cochin estuary, West Coast, India." Journal of Coastal Conservation 21, no. 1 (January 27, 2017): 233–44. http://dx.doi.org/10.1007/s11852-017-0494-8.

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32

Nagarajan, R., and M. V. Khire. "Debris slides of Varandh Ghat, west coast of India." Bulletin of Engineering Geology and the Environment 57, no. 1 (June 29, 1998): 59–63. http://dx.doi.org/10.1007/s100640050021.

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33

Francis, P. A., and Sulochana Gadgil. "Intense rainfall events over the west coast of India." Meteorology and Atmospheric Physics 94, no. 1-4 (July 31, 2006): 27–42. http://dx.doi.org/10.1007/s00703-005-0167-2.

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34

Kachhiya, Pradip, Jatin Raval, Paresh Poriya, and Rahul Kundu. "Diversity and new records of intertidal hermit crabs of the genus Clibanarius (Crustacea: Decapoda: Diogenidae) from Gujarat coast off the northern Arabian Sea, with two new records for the mainland Indian coastline." Journal of Threatened Taxa 9, no. 6 (June 26, 2017): 10334. http://dx.doi.org/10.11609/jott.2268.9.6.10334-10339.

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The present study reports seven hermit crab species of the genus Clibanarius, viz., C. infraspinatus, C. longitarsus, C. rhabdodactylus, C. rutilus, C. signatus, C. virescens, and C. zebra, from the intertidal zone of Gujarat State on the west coast of India. With the exception of C. zebra, the remaining six species are the first records from the west coast of India, and two species, C. rutilus and C. rhabdodactylus are new records from mainland India. All the recorded species were found inhabiting rocky, sandy and muddy intertidal habitats. We have appended the diagnostic descriptions and live coloration of all species based on the observations of our voucher specimens. Comments are provided where they differ slightly from the published records of that species, enriching the available identification keys for the intertidal hermit crabs of the Indian Ocean.

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35

Kapoor, A. K., and Monika Saini. "Is Selection Necessary for Evolution? A Dynamics of Coastal Population of India." Oriental Anthropologist: A Bi-annual International Journal of the Science of Man 19, no. 2 (September 3, 2019): 284–99. http://dx.doi.org/10.1177/0972558x19862392.

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Nature provides a good opportunity to understand the dynamics of evolution. The country has a huge coastline, which experiences socio-cultural and natural vulnerability. The aim of the paper has been to describe the pattern of selection intensity among the east and west coastal populations of India. Differential fertility and mortality were collected from 2,099 females (mothers) of the western coasts of India, and secondary data were collected from the eastern coast of India for comparison purposes. Selection potential was computed using Crow’s index and Johnston & Kensinger’s index. The data involved a total of 7,512 pregnancies during their reproductive lifespan and the successful outcomes (live births) were 7,073. The total index (It) for eastern coast varied from 0.221 to 1.078. For the west coast, it varied from 0.262 to 0.617. Among the eastern coastal population groups, the mortality component of selection is comparatively higher than its fertility component, while it is just the reverse among the western coastal population groups.

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36

Vinayachandran, Puthenveettil Narayana Menon, Yukio Masumoto, Michael J. Roberts, Jenny A. Huggett, Issufo Halo, Abhisek Chatterjee, Prakash Amol, et al. "Reviews and syntheses: Physical and biogeochemical processes associated with upwelling in the Indian Ocean." Biogeosciences 18, no. 22 (November 23, 2021): 5967–6029. http://dx.doi.org/10.5194/bg-18-5967-2021.

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Abstract. The Indian Ocean presents two distinct climate regimes. The north Indian Ocean is dominated by the monsoons, whereas the seasonal reversal is less pronounced in the south. The prevailing wind pattern produces upwelling along different parts of the coast in both hemispheres during different times of the year. Additionally, dynamical processes and eddies either cause or enhance upwelling. This paper reviews the phenomena of upwelling along the coast of the Indian Ocean extending from the tip of South Africa to the southern tip of the west coast of Australia. Observed features, underlying mechanisms, and the impact of upwelling on the ecosystem are presented. In the Agulhas Current region, cyclonic eddies associated with Natal pulses drive slope upwelling and enhance chlorophyll concentrations along the continental margin. The Durban break-away eddy spun up by the Agulhas upwells cold nutrient-rich water. Additionally, topographically induced upwelling occurs along the inshore edges of the Agulhas Current. Wind-driven coastal upwelling occurs along the south coast of Africa and augments the dynamical upwelling in the Agulhas Current. Upwelling hotspots along the Mozambique coast are present in the northern and southern sectors of the channel and are ascribed to dynamical effects of ocean circulation in addition to wind forcing. Interaction of mesoscale eddies with the western boundary, dipole eddy pair interactions, and passage of cyclonic eddies cause upwelling. Upwelling along the southern coast of Madagascar is caused by the Ekman wind-driven mechanism and by eddy generation and is inhibited by the Southwest Madagascar Coastal Current. Seasonal upwelling along the East African coast is primarily driven by the northeast monsoon winds and enhanced by topographically induced shelf breaking and shear instability between the East African Coastal Current and the island chains. The Somali coast presents a strong case for the classical Ekman type of upwelling; such upwelling can be inhibited by the arrival of deeper thermocline signals generated in the offshore region by wind stress curl. Upwelling is nearly uniform along the coast of Arabia, caused by the alongshore component of the summer monsoon winds and modulated by the arrival of Rossby waves generated in the offshore region by cyclonic wind stress curl. Along the west coast of India, upwelling is driven by coastally trapped waves together with the alongshore component of the monsoon winds. Along the southern tip of India and Sri Lanka, the strong Ekman transport drives upwelling. Upwelling along the east coast of India is weak and occurs during summer, caused by alongshore winds. In addition, mesoscale eddies lead to upwelling, but the arrival of river water plumes inhibits upwelling along this coast. Southeasterly winds drive upwelling along the coast of Sumatra and Java during summer, with Kelvin wave propagation originating from the equatorial Indian Ocean affecting the magnitude and extent of the upwelling. Both El Niño–Southern Oscillation (ENSO) and Indian Ocean Dipole (IOD) events cause large variability in upwelling here. Along the west coast of Australia, which is characterized by the anomalous Leeuwin Current, southerly winds can cause sporadic upwelling, which is prominent along the southwest, central, and Gascoyne coasts during summer. Open-ocean upwelling in the southern tropical Indian Ocean and within the Sri Lanka Dome is driven primarily by the wind stress curl but is also impacted by Rossby wave propagations. Upwelling is a key driver enhancing biological productivity in all sectors of the coast, as indicated by enhanced sea surface chlorophyll concentrations. Additional knowledge at varying levels has been gained through in situ observations and model simulations. In the Mozambique Channel, upwelling simulates new production and circulation redistributes the production generated by upwelling and mesoscale eddies, leading to observations of higher ecosystem impacts along the edges of eddies. Similarly, along the southern Madagascar coast, biological connectivity is influenced by the transport of phytoplankton from upwelling zones. Along the coast of Kenya, both productivity rates and zooplankton biomass are higher during the upwelling season. Along the Somali coast, accumulation of upwelled nutrients in the northern part of the coast leads to spatial heterogeneity in productivity. In contrast, productivity is more uniform along the coasts of Yemen and Oman. Upwelling along the west coast of India has several biogeochemical implications, including oxygen depletion, denitrification, and high production of CH4 and dimethyl sulfide. Although weak, wind-driven upwelling leads to significant enhancement of phytoplankton in the northwest Bay of Bengal during the summer monsoon. Along the Sumatra and Java coasts, upwelling affects the phytoplankton composition and assemblages. Dissimilarities in copepod assemblages occur during the upwelling periods along the west coast of Australia. Phytoplankton abundance characterizes inshore edges of the slope during upwelling season, and upwelling eddies are associated with krill abundance. The review identifies the northern coast of the Arabian Sea and eastern coasts of the Bay of Bengal as the least observed sectors. Additionally, sustained long-term observations with high temporal and spatial resolutions along with high-resolution modelling efforts are recommended for a deeper understanding of upwelling, its variability, and its impact on the ecosystem.

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Horton, M. C., and T. R. Blurton. "‘Indian’ metalwork in East Africa: the bronze lion statuette from Shanga." Antiquity 62, no. 234 (March 1988): 11–23. http://dx.doi.org/10.1017/s0003598x00073452.

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There are few frontiers from later periods whose archaeology is more beguiling than the east African coast. To the east are the sea-routes of the Indian Ocean, to the Islamic world, to India, to Indonesia, to China. To the west are the distinctive cultures of medieval Africa. And on the coast are the settlements where the east and the west touch. This paper works towards the wider issue of circum-maritime cultures from a single find from the new excavations at Shanga which have revealed mosques of a remarkably early date.

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Noujas, V., and K. V. Thomas. "Shoreline management plan for a medium energy coast along west coast of India." Journal of Coastal Conservation 22, no. 4 (March 7, 2018): 695–707. http://dx.doi.org/10.1007/s11852-018-0602-4.

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sluka, r. d., and s. lazarus. "humphead wrasse (cheilinus undulatus) rare on the west coast of india." Journal of the Marine Biological Association of the United Kingdom 85, no. 5 (October 2005): 1293–94. http://dx.doi.org/10.1017/s0025315405012452.

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humphead wrasse (cheilinus undulatus) are widely distributed throughout the indo-pacific region, but usually at low densities. this species' distribution in india includes lakshadweep, gulf of mannar, the east coast and the andaman and nicobar islands. the abundance and distribution of this species on the west coast of india was unknown prior to this study.

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TRIVEDI, JIGNESHKUMAR N., SHANE T. AHYONG, KAUESH D. VACHHRAJANI, and APPUKUTTANNAIR BIJU KUMAR. "An annotated checklist of the mantis shrimps of India (Crustacea: Stomatopoda)." Zootaxa 4768, no. 2 (May 1, 2020): 221–38. http://dx.doi.org/10.11646/zootaxa.4768.2.4.

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An annotated checklist of the mantis shrimps (Stomatopoda) occurring in India is compiled from published literature and specimens collected from coastal areas of Gujarat state. A total of 72 species, 35 genera, 10 families and 5 superfamilies reported from Indian waters are listed. Four species were recorded for the first time from Gujarat while one species, Erugosquilla hesperia (Manning, 1968), is confirmed for the first time from India. The maximum number of species was reported from Tamil Nadu (48 species), while fewest species were reported from Karnataka (2 species). The results also suggest that the east coast is more diverse (66 species) than the west coast of India (32 species).

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GEORGE, ANITA M. "Tale of two species of Stylissa (Porifera: Demospongiae: Scopalinida) from the west and east coasts of India." Zootaxa 5178, no. 1 (August 24, 2022): 72–80. http://dx.doi.org/10.11646/zootaxa.5178.1.4.

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Recent collections from the western and southern coasts of India recorded two species of Stylissa Hallmann (Scopalinida, Scopalinidae). Stylissa soestii sp. nov. was collected from St. George Island in Goa, Hare Island in the Gulf of Mannar and the Palk Bay. It has six distinct different morphologies and sizes of styles, in addition to the typical gently curved stout and thin styles characteristic of Stylissa, and two different morphologies of strongyloxeas and rare strongyles. Stylissa carteri (Dendy, 1889) was reported previously from India (Gulf of Mannar and Pearl Banks of Tuticorin) and is redescribed here from populations in Palk Bay, east coast of India, in addition to Muttom, Vizhinjam and Lakshadweep islands, which are the first records of S. carteri from the west coast of India.

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SRINIVAS, C. V., R. VENKATESAN, and A. BAGAVATH SINGH. "A numerical study of the influence of synoptic flow on coastal meso-scale circulations on the East and West Coasts of India." MAUSAM 56, no. 1 (January 19, 2022): 73–82. http://dx.doi.org/10.54302/mausam.v56i1.863.

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The effect of synoptic flow on the coastal boundary layer and land sea breeze circulation on the west and east coasts has been investigated by a numerical simulation using PSU/NCAR-MM5 mesoscale model. A study on 24th May 2003 during ARMEX observation period shows occurrence of land-sea breeze circulation and formation of thermal internal boundary layer (TIBL) on both the coastal regions in the daytime but of some differences. An early development and accelerated propagation of sea breeze circulation is noticed on the west coast compared to the east coast under the influence of the prevailing southwesterly flow. The strength of the sea breeze is more on the west coast. The mixing heights during daytime in the coastal regions are reduced by the formation of TIBL. The horizontal extent of TIBL is very less (24 km) on the west coast under the complex topographic effect. The sea breeze frontal activity is more intensive on the east coast with vertical velocity of the order of 2-4 m/sec by the retarding influence of southwesterly synoptic flow.

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Vallivattathillam, Parvathi, Suresh Iyyappan, Matthieu Lengaigne, Christian Ethé, Jérôme Vialard, Marina Levy, Neetu Suresh, et al. "Positive Indian Ocean Dipole events prevent anoxia off the west coast of India." Biogeosciences 14, no. 6 (March 27, 2017): 1541–59. http://dx.doi.org/10.5194/bg-14-1541-2017.

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Abstract. The seasonal upwelling along the west coast of India (WCI) brings nutrient-rich, oxygen-poor subsurface waters to the continental shelf, favoring very low oxygen concentrations in the surface waters during late boreal summer and fall. This yearly-recurring coastal hypoxia is more severe during some years, leading to coastal anoxia that has strong impacts on the living resources. In the present study, we analyze a 1/4° resolution coupled physical–biogeochemical regional oceanic simulation over the 1960–2012 period to investigate the physical processes influencing the oxycline interannual variability off the WCI, that being a proxy for the variability on the shelf in our model. Our analysis indicates a tight relationship between the oxycline and thermocline variations in this region on both seasonal and interannual timescales, thereby revealing a strong physical control of the oxycline variability. As in observations, our model exhibits a shallow oxycline and thermocline during fall that combines with interannual variations to create a window of opportunity for coastal anoxic events. We further demonstrate that the boreal fall oxycline fluctuations off the WCI are strongly related to the Indian Ocean Dipole (IOD), with an asymmetric influence of its positive and negative phases. Positive IODs are associated with easterly wind anomalies near the southern tip of India. These winds force downwelling coastal Kelvin waves that propagate along the WCI and deepen the thermocline and oxycline there, thus preventing the occurrence of coastal anoxia. On the other hand, negative IODs are associated with WCI thermocline and oxycline anomalies of opposite sign but of smaller amplitude, so that the negative or neutral IOD phases are necessary but not the sufficient condition for coastal anoxia. As the IODs generally start developing in summer, these findings suggest some predictability to the occurrence of coastal anoxia off the WCI a couple of months ahead.

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Chakravarti, Ranabir. "NAKHUDAS AND NAUVITTAKAS: SHIP-OWNING MERCHANTS IN THE WEST COAST OF INDIA (C. AD 1000-1500)." Journal of the Economic and Social History of the Orient 43, no. 1 (2000): 34–64. http://dx.doi.org/10.1163/156852000511231.

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AbstractAmong the diverse types of merchants active in India during the first half of the second millennium, the ship-owning merchants occupy a prominent position in the coastal areas of western India (especially at ports). These merchants are given distinct epithets nakhuda and nauvittaka, the two terms being occasionally used as interchangeable ones and also in their abbreviated forms in official documents. Known from the medieval Jewish letters of 'India Traders', copper plates, a bilingual inscription, Arabic accounts and epitaphs and Jaina carita (biographical) texts, nakudas and nauvittkas of different religious leanings (Jewish, Muslim and Hindu) illustrate remarkable co-operation and social amity and religious toleration, which underline their importance in the Indian Ocean maritime network prior to AD 1500. Possessing considerable wealth, these ship-owning merchants can be considered as elites in the ports of coastal western India and were also known for their patronage to religious and cultural activities. The paper is presented as a tribute to the memory of Professor Ashin Das Gupta who immensely enlightened us on the ship-owners of coastal western India between 1500-1800.

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Yulhendri, Yulhendri, Inaya Sari Melati, Jean Elikal Marna, and Weni Softazia. "The Analysis of the Economic Inequality of the Coast Regions." Economics Development Analysis Journal 9, no. 1 (February 1, 2020): 111–24. http://dx.doi.org/10.15294/edaj.v9i1.35372.

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West and East coast of Sumatra are two different geographical and trade routes. The West Coast is connected with trade direction to India, Arabia and Africa while on the East Coast it is connected with trade in the Malacca Strait, East Asian economy. Based on photos of satellite images at night, the east coast has more light compared to the west coast. This study analyzed the differences in economic inequality between the economy of the population residing in the West Coast Region and the East Coast of Sumatra. This study took data sourced from the Indonesian Central Statistics Agency published in the last 5 years, 2013-2017. The data were processed using SPSS and Excel using the Williamson Index analysis tool. There are 23 Regencies / Cities in the West Coast and 23 Regencies / Cities in the East Coast analyzed where the West Coast average growth rate in the last 5 years is 5.17% and East Coast 5.48% with the Inequality index using the Williamson Index formula in West Coast 0.37 and East Coast 0.28. It was found that economic activity on the East Coast tends to be more lively and higher economic growth with a low level of inequality compared to the West coast of Sumatra

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SU, Kamath, Agarwal S, and Austine J. "Morphology of Proximal Femur in South-West Coast of India." Malaysian Orthopaedic Journal 14, no. 3 (November 1, 2020): 143–50. http://dx.doi.org/10.5704/moj.2011.022.

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Bandekar, Pradnya D. "Tree-climbing mangrove crabs of Karwar west coast of India." International Journal of Fisheries and Aquatic Studies 9, no. 3 (May 1, 2021): 186–89. http://dx.doi.org/10.22271/fish.2021.v9.i3c.2476.

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Karun, Namera C., and Kandikere R. Sridhar. "Geasters in the Western Ghats and west coast of India." Acta Mycologica 1, no. 1 (December 31, 2014): 207–19. http://dx.doi.org/10.5586/am.2014.023.

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Inventory in different locations of the Western Ghats and west coast of India during 2011–2013 yielded six species of geasters (<em>Geastrum fimbriatum</em>, <em>G. lageniforme</em>, <em>G. pseudostriatum</em>, <em>G. saccatum</em>, <em>G. schweinitzii</em> and <em>G. triplex</em>). Based on fresh basidiomata, illustrations of geasters are presented with macroscopic and microscopic observations. Fruit bodies of <em>G. lageniforme</em> were gregarious and abundant followed by <em>G. triplex</em>, while <em>G. pseudostriatum</em> were rare and solitary. Among the geasters, <em>G. triplex</em> was ectomycorrhizal with native tree <em>Terminalia paniculata</em> of the west coast. <em>Geastrum fimbriatum</em>, <em>G. pseudostriatum</em> and <em>G. schweinitzii</em> constitute the first record for the Western Ghats of India. Distribution, substrate preference, ectomycorrhizal features, economic value and conservation of geasters are discussed.

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Tripati, Sila, and P. Gudigar. "Shipwreck archaeology of the Lakshadweep Islands, west coast of India." International Journal of Nautical Archaeology 30, no. 1 (April 2001): 37–47. http://dx.doi.org/10.1111/j.1095-9270.2001.tb01354.x.

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Tripati, Sila. "Ships on Hero Stones from the West Coast of India." International Journal of Nautical Archaeology 35, no. 1 (April 2006): 88–96. http://dx.doi.org/10.1111/j.1095-9270.2005.00081.x.

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