Climate Change Induced Coral Bleaching and Algal Phase Shift in Reefs of the Gulf of Mannar, India

Jeevamani, J. Joyson Joe; Kamalakannan, B.; Nagendran, N. Arun; Chandrasekaran, S.

doi:10.1007/978-3-642-36143-2_6

Cited by 5 publications

(2 citation statements)

References 22 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In 2016, approximately 70% of corals in Palk Bay and 46% of corals across the coastal Thoothukkudi Islands in the Gulf of Mannar experienced bleaching due to high sea surface temperatures of 34.0°C (Krishnan et al, 2018). Coral bleaching events in 1998, 2010, 2016 have had a distinct impact on India's corals, albeit with some notable variation attributed to species-specific resilience to increased temperatures (Krishnan et al, 2011;Jeevamani et al, 2013;Arora et al, 2019a;Arora et al, 2019b;Hussain and Ingole, 2020). Nevertheless, bleaching has led to widespread and significant mortality contributing to a general decline in coral reef coverage in India (Chandra et al, 2021).…”

Section: Gulf Of Kachchhmentioning

confidence: 99%

Anthropogenic nitrogen pollution threats and challenges to the health of South Asian coral reefs

et al. 2023

View full text Add to dashboard Cite

Nitrogen pollution is a widespread and growing problem in the coastal waters of South Asia yet the ecological impacts on the region’s coral ecosystems are currently poorly known and understood. South Asia hosts just under 7% of global coral reef coverage but has experienced significant and widespread coral loss in recent decades. The extent to which this coral ecosystem decline at the regional scale can be attributed to the multiple threats posed by nitrogen pollution has been largely overlooked in the literature. Here, we assess the evidence for nitrogen pollution impacts on corals in the central Indian Ocean waters of India, Sri Lanka and the Maldives. We find that there is currently limited evidence with which to clearly demonstrate widespread impacts on coral reefs from nitrogen pollution, including from its interactions with other stressors such as seawater warming. However, this does not prove there are no significant impacts, but rather it reflects the paucity of appropriate observations and related understanding of the range of potential impacts of nitrogen pollution at individual, species and ecosystem levels. This situation presents significant research, management and conservation challenges given the wide acceptance that such pollution is problematic. Following from this, we recommend more systematic collection and sharing of robust observations, modelling and experimentation to provide the baseline on which to base prescient pollution control action.

show abstract

Section: Gulf Of Kachchhmentioning

confidence: 99%

Anthropogenic nitrogen pollution threats and challenges to the health of South Asian coral reefs

et al. 2023

View full text Add to dashboard Cite

show abstract

“…Subsequently, the tsunami in 2004 caused substantial reduction of live coral cover and sea grass vegetation (Kumarguru et al 2005). Recent studies on the effects of increasing sea surface temperatures on coral assemblages from Gulf of Mannar have revealed extensive mortality among bleached coral recruits (Patterson Edward et al 2008), along with predictions of phase shift from coral dominated ecosystem to an algal dominated one (Jeevamani et al 2013). Further, release of untreated effluents and sedimentation of reefs due to altered land use patterns in the region also pose potential threats to the fragile coral reef and sea grass ecosystems in the region Edward 2006, Edward et al 2012).…”

Section: Chaetodontidae Rafinesque 1815mentioning

confidence: 99%