Population Structure And Relative Abundance Of Elasmobranch Species Utilizing Inshore Waters Of Abu Dhabi

الموضوعات

علوم بحتة وطبيعية

الملخص

The diversity, abundance, and distribution of elasmobranchs is poorly documented along the Arabian Gulf coast of the United Arab Emirates, with only a handful of publications focusing on elasmobranchs with the majority of data are collected through landing site and market surveys lacking site and species-specific data that are crucial for conservation management plans. The main objectives of this research were to determine the occurrence and utilization; quantify the relative abundance across different seasons; and describe the demographic structure of elasmobranch species that occurs in shallow waters around mangroves in Khor Al Saadiyat and adjacent islands, northeast of Abu Dhabi, United Arab Emirates. To collect the data on species that occurs in the area, a dedicated longline and drumline surveys was conducted haphazardly on a weekly basis from September 2019 to March 2021. The study was divided into two phases, an exploratory phase that encompassed a larger study area, and a focal phase that focused on a smaller area within the exploratory phase. A total of 71 batoids, representing five species belonging to two families from four genera were caught during the sampling period with the majority of the catch was around the focal study area. Two of the most common species found were the halavi guitarfish ( Glaucostegus halavi ) and Pakistan whipray ( Maculabatis arabica ), accounting for 46% and 39% of the total catch respectively. Based on the latest IUCN assessment, both of these species have been classified as critically endangered due to their inshore habitat preference threatened by habitat loss, intense fishing pressure, or as incidental catch. Additional measures should be put in place including species protection, spatial management and effective enforcement, in order to conserve the population and permit recovery.

روابط وملفات

التعريف والنوع

رقم الوثيقة

fab3d3ff-6668-476c-afe6-713dda578925

رقم العقد

0

نوع الوسائط

Crawler

نوع المحتوى

الرسائل العلمية

صيغة المصدر

رسائل ماجيستير

نوع الملف

pdf text

أسماء الملفات

2325392_2.pdf

بيانات النشر

ألقاب المؤلفين

[{"name_ar":"Aaron Henderson","title_ar":"اشراف","title_en":"Supervision"},{"name_ar":"Shamsa Mohamed Al Hameli","title_ar":"اعداد","title_en":"Preparation"}]

اللغة

English

المصدر والدورية

اسم المصدر

Population Structure And Relative Abundance Of Elasmobranch Species Utilizing Inshore Waters Of Abu Dhabi

المحتوى والصفحات

عدد الصفحات

0

إشراف وإعداد

الإشراف

Aaron Henderson

الإعداد

Shamsa Mohamed Al Hameli

الاقتباسات الببليوغرافية