A Mini-Review on Distribution, Threats, and Conservation Strategies for Otters

Distribution, Threats, and Conservation Strategies for Otters

Authors

  • Muhammad Mudassir Hussain Department of Biology, Lahore Garrison University, Lahore, Pakistan
  • Roheela Yasmeen Department of Biology, Lahore Garrison University, Lahore, Pakistan

DOI:

https://doi.org/10.54393/mjz.v6i4.186

Keywords:

Otters, Conservation, Illegal Trade, Wildlife Protection

Abstract

There are five species of otter found in Asia, and they can be found in freshwater as well as along the coastal regions of the sea. These are semi-aquatic mammals that live in a variety of freshwater and coastal marine environments on the continent. They are morphologically modified to live in water, their bodies are streamlined, their heads are long with a beam pattern, they have sensitive vibrissae, and round ears. The interesting aspect of the Eurasian otter is that it has a long and hairy tail that ends conically to a sharp end. Also being apex predators, otters are very vital in their ecosystem. Their precious fur, organs, and exotic pets are subjected to illegal international trade that is a major threat to the otter population all over the world, as well as habitat loss and pollution. As much as otters groom themselves to ensure waterproofing and insulation, they are unable to regenerate fur. Many organizations are actively working in Pakistan and elsewhere in the world to conserve the lives of otters through conservation programs. The purpose of this review is to gather all the information about the otters, their nutritional requirements, habitat, and conservation.

References

Basnet A, Ghimire P, Timilsina YP, Bist BS. Otter research in Asia: Trends, Biases, and Future Directions. Global Ecology and Conservation. 2020 Dec; 24: e01391. doi: 10.1016/j.gecco.2020.e01391.

Koepfli KP, Kanchanasaka B, Sasaki H, Jacques H, Louie KD, Hoai T et al. Establishing the Foundation for an Applied Molecular Taxonomy of Otters in Southeast Asia. Conservation Genetics. 2008 Dec; 9(6): 1589-604. doi: 10.1007/s10592-007-9498-5.

Garcês A and Pires I. Biological and Conservation Aspects of Otter Mortality: A Review. Conservation. 2024 Jun; 4(2): 307-18. doi: 10.3390/conservation4020020.

Abdullah-Fauzi NA, Sariyati NH, Narrshen T, Haris H, Othman N, Ramli FF et al. Coexistence and Potential of Smooth-Coated Otter (Lutrogale Perspicillata) as Biological Control for Invasive Nile Tilapia (Oreochromis spp.) in Southern Peninsular, Malaysia. Journal of Wildlife and Biodiversity. 2025; 9(1): 1-6.

Wright L, Olsson A, Kanchanasaka B. A Working Review of the Hairy-nosed Otter (Lutra sumatrana). IUCN Otter Spec. Group Bull. 2008; 25(1): 38-59.

Duplaix N and Savage M. The Global Otter Conservation Strategy. IUCN/SSC Otter Specialist Group, Salem, Oregon, USA. 2018: 166.

Guerrini M, Forcina G, Chua MA, Theng M, Al-Sheikhly OF, Haba MK et al. Spatial Genetic Structure in the Vulnerable Smooth-Coated Otter (Lutrogale Perspicillata, Mustelidae): Towards an Adaptive Conservation Management of the Species. The Raffles Bulletin of Zoology. 2020; 68: 719-34.

Kitchener A. Form and Function of the Musteloids. Oxford Scholarship Online. 2018 Jan. doi: 10.1093/oso/9780198759805.003.0003.

Strobel SM, Miller MA, Murray MJ, Reichmuth C. Anatomy of the Sense of Touch in Sea Otters: Cutaneous Mechanoreceptors and Structural Features of Glabrous Skin. The Anatomical Record. 2022 Mar; 305(3): 535-55. doi: 10.1002/ar.24739.

Pedroso NM, Sales-Luís T, Santos-Reis M. The Eurasian otter Lutra lutra (Linnaeus, 1758) in Portugal. Munibe Monographs. Nature Series. 2014 Nov; 3: 132-44. doi: 10.21630/mmns.2014.3.11.

Ten Hwang Y, Larivière S. Lutrogale perspicillata. Mammalian Species. 2005 Dec; 2005(786): 1-4. doi: 10.1644/786.1.

Riedman M and Estes JA. The Sea Otter (Enhydra lutris): Behavior, Ecology, and Natural History. US Department of the Interior, Fish and Wildlife Service. 1991.

Kumar M and Das N. Ecological Biodiversity, Functioning, and Ecosystem Services of the Aquatic Ecosystem of Southern Asia. InRiver Basin Ecohydrology in the Indian Sub-Continent. 2024 Jan: 69-100. doi: 10.1016/B978-0-323-91545-8.00004-8.

Pountney A. Analysis of the Population Genetics and Polybrominated Diphenyl Ether (PBDE) Burdens of Otters in England and Wales: With Case Studies of Populations in South West England. 2008.

Allison ML, Reed R, Michels E, Boogert NJ. The Drivers and Functions of Rock Juggling in Otters. Royal Society Open Science. 2020 May; 7(5): 200141. doi: 10.1098/rsos.200141.

Zellmer NT, Timm-Davis LL, Davis RW. Sea Otter Behavior: Morphologic, Physiologic, and Sensory Adaptations. Inethology and Behavioral Ecology of Sea Otters and Polar Bears. Cham: Springer International Publishing. 2021 Jul: 23-55. doi: 10.1007/978-3-030-66796-2_3.

Thorp JH. The Otter and the Fairy Shrimp. Springer Nature. 2024 Sep. doi: 0.1007/978-3-031-64029-2.

Leles B, Georgiadis G, Kaczmarek N, Brandão R, Campello S. Group Dynamics and Habitat Use of the Giant Otter, Pteronura brasiliensis (Zimmermann, 1780). Seasonally Flooded Forest in the Araguaia River, Central Brazil: A. 2022: 125-46. doi: 10.1101/2022.01.30.478386.

Lélias ML, Lemasson A, Lodé T. Social Organization of Otters in Relation to Their Ecology. Biological Journal of the Linnean Society. 2021 May; 133(1): 1-27. doi: 10.1093/biolinnean/blab016.

Blundell GM, Ben-David M, Bowyer RT. Sociality in River Otters: Cooperative Foraging or Reproductive Strategies? Behavioral Ecology. 2002 Jan; 13(1): 134-41. doi: 10.1093/beheco/13.1.134.

Cuculescu-Santana M, Mason J, Purchase K, McKie R. Outdoor Enclosure Use and Behaviour of Adult and Cub Asian Small Clawed Otters Aonyx Cinereus in Summer and Winter. IUCN OSG Bull. 2021 Jan; 38: 3-27.

Davis, R.W., and Bodkin, J.L. Sea Otter Foraging Behavior. In Ethology and Behavioral Ecology of Sea Otters and Polar Bears. Cham: Springer International Publishing. 2021 Jul: 57-81. doi: 10.1007/978-3-030-66796-2_4.

Khan WA, Akhtar M, Ahmed MS, Abid M, Ali H, Yaqub A. Historical and Current Distribution of Smooth-Coated Otter (Lutrogale perspicillata sindica) in Sindh, Pakistan. Pakistan Journal of Wildlife. 2010; 1(1): 5-15.

Jahangeer M, Muhammad S, Shakeel M, Saleem MM, Usman A, Abid H. Diversity and Conservation Status of Large Mammals in Ghamot National Park, Azad Jammu and Kashmir, Pakistan. Kashmir Journal of Science. 2024 Oct; 3(2). doi: 10.63147/krjs.v3i2.44.

Moraes CG, Hegg J, Giarrizzo T, Andrade MC. Feeding Behavior and Trophic Niche Partitioning Between Co-Existing River Otter Species. Hydrobiologia. 2021 Oct; 848(18): 4167-77. doi: 10.1007/s10750-021-04614-w.

Dias SJ. Determination of Fisher Perception Towards Smooth-Coated Otters (Lutrogale Perspicillata): A Case Study in Western India. New Visions in Biological Science. 2021 Oct; 4: 58-65. doi: 10.9734/bpi/nvbs/v4/1963C.

Khan TU, Ahmad S. Protect Pakistan’s otters. Science. 2024 May; 384(6695): 519-. doi: 10.1126/science.ado4810.

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Published

2025-12-31
CITATION
DOI: 10.54393/mjz.v6i4.186
Published: 2025-12-31

How to Cite

Hussain, M. M., & Yasmeen, R. (2025). A Mini-Review on Distribution, Threats, and Conservation Strategies for Otters: Distribution, Threats, and Conservation Strategies for Otters. MARKHOR (The Journal of Zoology), 6(4), 14–19. https://doi.org/10.54393/mjz.v6i4.186

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