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Description: <DIV STYLE="text-align:Left;"><DIV><DIV><P STYLE="margin:0 0 7 0;"><SPAN><SPAN>The spatial distribution of Al Defara fishing gear used in Abu Dhabi Emirate. Al Defara is an encircling gill net placed around schools of fish in shallow waters. The gill net has a lead bottom line that touches the sea bottom and closes it off to hold the fish. From the side of the boat the net is hauled carefully, making sure the net forms a pocket from which fish cannot escape. Al Defara is regulated to be used only within buhoors by tarad fishermen holding privileged concession rights to fish in a specific sea area (buhoor). Data originates from Abu Dhabi commercial fisheries statistics stored in the National Fisheries Information System (NFIS), 2010-2012. Enumerators interview fishermen on their fishing trip whereabouts, utilizing a marine grid with spatial units measuring approx. 18 by 18 km. This allowed to pinpoint the actual fishing grounds for the Al Defara fishing gear more accurately. The resulting spatial distribution polygon was inferred by Inverse Distance Weighting tool (IDW), classified to eight Jenks natural break classes, excluding fishing intensity values below 0.05. The total sample size was 381 records obtained from Al Marfa landing site. || التوزيع المكاني لأدوات الصيد "الدفارة" المستخدمة في إمارة أبوظبي.</SPAN></SPAN></P><P STYLE="margin:0 0 7 0;"><SPAN><SPAN>"الدفارة" هي شبكة صيد تحويطية تُوضع حول أسراب الأسماك في المياه الضحلة. تحتوي الشبكة على خط سفلي من الرصاص يلامس قاع البحر ويغلقه لاحتجاز الأسماك. من جانب القارب، يتم سحب الشبكة بعناية، مع التأكد من تشكيل جيب في الشبكة لا تستطيع الأسماك الهروب منه.</SPAN></SPAN></P><P STYLE="margin:0 0 7 0;"><SPAN><SPAN /></SPAN></P><P STYLE="margin:0 0 7 0;"><SPAN><SPAN>تُستخدم "الدفارة" بشكل منظم داخل البحور فقط من قبل صيادي الطراد الحاصلين على حقوق امتياز خاصة للصيد في منطقة بحرية محددة (البحور).</SPAN></SPAN></P><P STYLE="margin:0 0 7 0;"><SPAN><SPAN /></SPAN></P><P STYLE="margin:0 0 7 0;"><SPAN><SPAN>تم الحصول على البيانات من إحصائيات مصايد الأسماك التجارية في أبوظبي المخزنة في نظام المعلومات الوطني لمصايد الأسماك (NFIS) للفترة 2010-2012. يقوم المراقبون بمقابلة الصيادين بشأن أماكن رحلاتهم باستخدام شبكة بحرية بوحدات مكانية تبلغ حوالي 18 × 18 كيلومترًا. ساعد ذلك في تحديد مواقع الصيد الفعلية لأدوات صيد "الدفارة" بدقة أكبر.</SPAN></SPAN></P><P STYLE="margin:0 0 7 0;"><SPAN><SPAN /></SPAN></P><P STYLE="margin:0 0 7 0;"><SPAN><SPAN>تم استنتاج مضلع التوزيع المكاني باستخدام أداة الوزن العكسي للمسافة (IDW).</SPAN></SPAN></P><P /></DIV></DIV></DIV>
Service Item Id: ba21abc1720746d988deb9d36df68419
Copyright Text: Created by: Fisheries Investigations & Monitoring Unit as an output of the Fish Landings & Population Dynamics Project in 2013.
Documentation: Abu Dhabi fishing methods and species distribution maps.
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