Scars of hope and forewarn of a bleak future: post-mortem findings of dugongs (Dugong dugon) belonging to a relict population in the Gulf of Kachchh, India

被引:1
|
作者
Pathan, Sameeha [1 ]
Pande, Anant [1 ,2 ]
Sivakumar, Kuppusamy [1 ,3 ]
Johnson, J. A. [1 ]
机构
[1] Wildlife Inst India, Dehra Dun 248001, India
[2] Wildlife Conservat Soc, Marine Program, Bengaluru 560097, India
[3] Pondicherry Univ, Dept Ecol & Environm, Pondicherry 605014, India
来源
CURRENT SCIENCE | 2022年 / 123卷 / 07期
关键词
Dugongs; necropsy; relict population; stom-ach content analysis; Tusk-rake scars; SIRENIA; DYNAMICS;
D O I
10.18520/cs/v123/i7/919-924
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
A relict dugong population resides in the Gulf of Kachchh (GoK), Gujarat, India. Very little is known about this population stemming from a lack of focused studies and inadequate examination of previous strandings. The present study gathers crucial ecological information through a systematic post-mortem examination of stran-ded dugongs in GoK. As indicated through dorsal tusk -rake scars on two carcasses, this study presents records of derivative physical evidence. Progressive healing and differences in the width of the scars indicated more than two individuals had participated in a sexual agno-stic or courtship event. Conversely, our findings report that both animals suffered relative effects of asphyxia-tion after fishing net entanglement. The implication of a prior pathological condition(s) in the form of dermal cysts, swollen mesenteric lymph nodes and endopara-sites is also reported. Stomach content was examined for a qualitative dietary characterization. Halophila bec-cari, Halophila ovalis and Halodule uninervis were found in the stomach content. Other potential threats as well as fishing net microfilaments found in the stomach con-tents of both dugongs are discussed.
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页码:919 / 924
页数:6
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