Sanya D.
Kishwar, Kritika Vatsa, and Sadqua
Khatoon
The Bay of Bengal (‘BoB’), often described as a
“triangular basin spanning west to east between Sri Lanka, Bangladesh, and
Malaysia” is a sprawling hub for trade and natural resource extraction.[1]
Replete with minerals and fisheries, the Bay is a sustainer of livelihood, a
tourist attraction, a revenue generator for the surrounding states and above
all, a diverse marine habitat.[2]
BoB’s “large marine ecosystem” shelters mangroves, sea grass beds and several
endangered species.[3]
Importantly, BoB is home to seagrass meadows.[4]
Seagrass, an underwater plant, serves as a natural “carbon sink” by absorbing
and storing significant amounts of carbon dioxide, making it a crucial element
in climate change mitigation.[5]
Additionally, seagrass has been found to filter coastal waters and enhance
nutrient levels.[6]
Though “under-represented” in climate change mitigation, seagrass ecosystems
play a vital role in preserving the environment.[7]
The United Nations Environment Programme emphasizes the significance of
conserving and restoring seagrass meadows in the report, Out of the Blue,
for effective climate change mitigation.[8]
This blog attempts to discuss the preventive steps taken by India to conserve
and restore the depleting seagrass meadows in Palk Bay, an inlet in the BoB.
The authors comment critically on the role played by the state in climate
change mitigation in the BoB region and attempt to list recommendations for
better marine governance.
Blue Economy as a threat to Palk Bay seagrass ecosystem
India harbours coastal and marine seagrass meadows, with Palk Bay identified as a
significant area holding most of the country’s seagrass cover.[9]
Hejnowicz et al. note that despite it being an efficient contributor to climate
change mitigation, the conservation and restoration of seagrass meadows face
insufficient attention.[10]
There is a notable decline in the Palk Bay seagrass meadows, which are now
being monitored as Ecologically Sensitive Areas by the National Centre for
Sustainable Coastal Management in India.[11]
The Blue Economy (‘BE’) concept, originating from the
2012 United Nations Conference on Sustainable Development, aims to foster
sustainable coastal management and marine utilization in the BoB states.[12]
Despite the focus on sustainable development, the BE model poses
environmental challenges, many of which were discussed recently at the G20
Research and Innovation Initiative Gathering (‘RIIG’) Conference.[13]
While overfishing and hydrocarbon exploitation have concerned BoB states for
decades, the issues are taking a serious turn due to their increased impact on
seagrass.[14]
Fishing practices such as bottom trawling have depleted the seagrass meadows in
Palk Bay.[15] Bottom trawling involves dragging heavily weighted nets across the sea floor to catch fish, resulting in the uprooting of seagrass meadows as well as causing harm to dugongs, slow-moving sea creatures now listed as “vulnerable to extinction” by the International Union for Conservation of Nature.[16]
India’s pursuit of a leading BE role has unintended consequences, with
subsidies shifting local fishers to large-scale, export-oriented fishing,
potentially leading to illegal practices like bottom trawling. This raises
concerns about overfishing, increased contribution to marine pollution and
seagrass depletion. Project
Sagarmala’s port development adds to these issues, with the unregulated
port expansion being perceived as “ocean grabbing” by critics.[17]
Additionally, unsustainable tourism and coastal development projects further
contribute to seagrass depletion.[18] It is argued that India’s BE framework is
short of the desired sustainable approach.
Preserving Palk Bay: Recommendations and Way Forward
According to the United Nations Framework Convention on Climate Change, the member countries are required to report their yearly carbon emissions along with an account of their efforts in reducing it. Blue carbon, absorbed and stored in the ocean, is crucial for mitigating global warming.[19] The High-Quality Blue Carbon Principles and Guidance launched at COP27 guides the development and purchase of high-quality blue carbon projects and credits.[20] This framework aims to build confidence and momentum around blue carbon project development and investments. Notably, India has set a target to create a carbon sink of 2.50-3.00 billion tonnes by 2030, emphasizing the need to proactively conserve seagrass meadows, including blue carbon ecosystems.[21] One such step taken by the government is the Palk Bay Scheme, which was launched in 2017. The initiative aims at promoting deep-sea fishing to replace bottom trawling.[22] Apart from this, researchers from Manonmaniam Sundaranar University in the state of Tamil Nadu have initiated the establishment of a dugong conservation reserve in the Palk Bay with an aim to preserve the natural seagrass habitat of dugongs by curtailing bottom trawling in the region.[23] While the scheme sounds promising, it should be coupled with schemes that promote sustainable diving and boating since they also contribute to seagrass depletion apart from bottom trawling. Organizations like PADI and the Reef-World Foundation have been advocating for eco-friendly practices since 2018, and similar efforts should be encouraged in Palk Bay for optimal seagrass preservation.[24] Additionally, leveraging advanced technology, such as geospatial mapping and artificial intelligence, for seagrass bed mapping, as demonstrated by the University of Southampton in Studland Bay, can aid in evaluating and restoring seagrass health.[25] Incorporating this technology as a mandatory step in the Palk Bay Scheme can enhance the initiative’s effectiveness. Adequate budget allocation by state governments to the fisheries sector for adopting sustainable fishing techniques is crucial. The Bay of Bengal faces challenges that require innovative solutions, and while modern technologies provide tools for monitoring and adapting, effective ocean governance remains essential. International collaboration, integrated management approaches, and a commitment to sustainability can pave the way for a prosperous and resilient future for the Bay’s maritime region.
The Bay of Bengal stands at a critical point where the imperative to harness technological advancements for economic growth must be balanced with a commitment to sustainable practices. The region’s rich biodiversity and economic significance demand a delicate balance to be struck, ensuring that progress does not compromise ecological integrity or jeopardize maritime safety. The surge in maritime traffic, facilitated by advanced navigation and communication technologies, heightens the risk of accidents and collisions, posing threats to both human life and marine ecosystems. The challenges and opportunities posed by modern technology in the Bay of Bengal necessitate a proactive and adaptive approach to mitigate environmental and safety concerns. By carefully navigating this balance, stakeholders can safeguard not only the region's ecological diversity but also human lives and the vitality of marine ecosystems.
Kritika Vatsa, Student, O.P. Jindal Global University, Sonipat, India.
Sadqua Khatoon, Student, Aligarh Muslim University, Aligarh, India.
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[3] Brewer, D.,
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[6] Short, F.
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[7] Daru, B.
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[9] Geevarghese,
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[10] Hejnowicz,
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[11] Ganguly,
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[12] UNCTAD. (2014). The Oceans
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[13] Martínez-Vázquez,
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[14] Vivekanandan,
E., Hermes, R., & O’Brien, C. (2016). Climate change effects in the Bay of
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[15] Purohit, M.
(2017, November 28). Palk Bay: Trawled and damaged. India Water Portal.
https://www.indiawaterportal.org/articles/palk-bay-trawled-and-damaged
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[17] Selvam, T.
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Singh, A. (2022). Port Development: history, present and future challenges. In
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[19] Thomas, S.
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[20] Meridian Institute. (2022). High-quality
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[21] Sharma, J.
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[22] Ramakrishnan,
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[23] Chaitanya,
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