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Present Status of Ganges River Dolphins Platanista gangetica gangetica (Roxburgh, 1801) in the Turag River, Dhaka, Bangladesh
المؤلفون المشاركون
Baki, Mohammad Abdul
Bhouiyan, Naser Ahmed
Islam, Md. Saiful
Alam, Shayer Mahmood Ibney
Shil, Shibananda
Hossain, Md. Muzammel
المصدر
International Journal of Zoology
العدد
المجلد 2017، العدد 2017 (31 ديسمبر/كانون الأول 2017)، ص ص. 1-7، 7ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2017-06-14
دولة النشر
مصر
عدد الصفحات
7
التخصصات الرئيسية
الملخص EN
Freshwater ecosystem degradation in the Turag River basin is increasing due to rising human settlement, reduced water flow during the dry season, new large land development projects, and toxic emissions caused by brick kilns.
The population of river dolphins was estimated through surveys carried out from December 2012 to November 2013.
Surveys were conducted on a fortnightly basis.
The dolphins were counted within an 18.4 km stretch (known to be the most polluted stretch) of the 75 km long river.
A total of 62 dolphin sightings were recorded, both as individual sightings and as groups.
The highest monthly count was in August.
The best-high-low estimates of 9-11-7 individuals were recorded in August 2013 in river ecology.
Seasonal changes in spatial distribution were observed.
The survey revealed that rising floodwater stimulated an increase in the dolphin population in the study area from July to October.
The maximum encounter rate was also 0.49 sightings km−1 for the month of August.
The sightings and encounter rates of dolphins were lower from December to July (dry and premonsoon period) likely due to reduced water flow and adverse water quality of this river.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Baki, Mohammad Abdul& Bhouiyan, Naser Ahmed& Islam, Md. Saiful& Alam, Shayer Mahmood Ibney& Shil, Shibananda& Hossain, Md. Muzammel. 2017. Present Status of Ganges River Dolphins Platanista gangetica gangetica (Roxburgh, 1801) in the Turag River, Dhaka, Bangladesh. International Journal of Zoology،Vol. 2017, no. 2017, pp.1-7.
https://search.emarefa.net/detail/BIM-1169832
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Baki, Mohammad Abdul…[et al.]. Present Status of Ganges River Dolphins Platanista gangetica gangetica (Roxburgh, 1801) in the Turag River, Dhaka, Bangladesh. International Journal of Zoology No. 2017 (2017), pp.1-7.
https://search.emarefa.net/detail/BIM-1169832
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Baki, Mohammad Abdul& Bhouiyan, Naser Ahmed& Islam, Md. Saiful& Alam, Shayer Mahmood Ibney& Shil, Shibananda& Hossain, Md. Muzammel. Present Status of Ganges River Dolphins Platanista gangetica gangetica (Roxburgh, 1801) in the Turag River, Dhaka, Bangladesh. International Journal of Zoology. 2017. Vol. 2017, no. 2017, pp.1-7.
https://search.emarefa.net/detail/BIM-1169832
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-1169832
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
أضخم قاعدة بيانات عربية للاستشهادات المرجعية للمجلات العلمية المحكمة الصادرة في العالم العربي
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