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Book (series)Technical studyالاستقصاءات السمكية القائمة على المعاينة. كتيب تقني 2010الغرض من هذا الكتيب هو تلخيص الخبرة التي اكتسبتها دائرة المعلومات والاحصاءات الخاصة بمصايد الأسماك وتربية الأحياء المائية التابعة لمنظمة الأغذية والزراعة على مدى السنوات الأخيرة في إعداد الإحصاءات السمكية، وتزويد المخططين ومستخدمي الاستقصاءات السمكية بتوجيهات مبسطة وتدريجية لإجراء وتنفيذ استقصاءات سمكية فعالة من حيث التكلفة ومستدامة. وتنطبق المفاهيم المنهجية والتشغيلية التي تناقش هنا بالتساوي على كل من مصايد الأسماك الطبيعية البحرية والداخلية وتعرض بطريقة عامة بما يكفي لجعلها مقبولة لدى نظم جمع البيانات المستخدمة بصورة أكثر شيوعا. وتعرض الجوانب الإحصائية بطريقة وصفية وليس بطريقة نظرية. وينصب التركيز على فهم وتفسير الإحصاءات والمؤشرات ذات الصلة التي تم جمعها، وليس على الطرق الحسابية التي نتجت عنها. ويمكن للقراء المهتمين بمناقشة أكثر عمقا عن النهج الإحصائية والحسابية الاستعانة بقائمة المراجع الواردة في نهاية هذا الكتيب.
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Book (stand-alone)Technical bookBlack teatfish, Holothuria whitmaei and Holothuria nobilis, White teatfish, Holothuria fuscogilva
Expert panel summary proposal: 45
2019The sixth FAO Expert Advisory Panel for the Assessment of Proposals to Amend Appendices I and II of CITES Concerning Commercially-exploited Aquatic Species was held at FAO headquarters from 21 to 25 January 2019. The Panel was convened in response to the agreement by the twenty-fifth session of the FAO Committee on Fisheries (COFI) on the terms of reference for an expert advisory panel for assessment of proposals to the Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES), and to the endorsement of the twenty-sixth session of COFI to convene the Panel for relevant proposals to future CITES Conference of the Parties. The objectives of the Panel were to: i. assess each proposal from a scientific perspective in accordance with the CITES biological listing criteria (Resolution Conf. 9.24 [Rev. CoP17]; ii. comment, as appropriate, on technical aspects of the proposal in relation to biology, ecology, trade and management issues, as well as, to the extent possible, the likely effectiveness for conservation. The Panel considered the following four proposals submitted to the eighteenth Conference of the Parties to CITES: CoP18 Prop. 42 to include mako shark, Isurus oxyrinchus in Appendix II in accordance with Article II paragraph 2(a) and Isurus paucus in Appendix II in accordance with Article II paragraph 2(b). The FAO Expert Panel assessment of proposal 42 concluded that the available data do not provide evidence that the species meets the CITES Appendix II listing criteria. CoP18 Prop. 43 to include blackchin guitarfish Glaucostegus cemiculus and the sharpnose guitarfish, Glaucostegus granulatus in Appendix II in accordance with Article II paragraph 2(a) and inclusion of all other giant guitarfish, Glaugostegus spp. in accordance with Article II paragraph 2(b). The FAO Expert Panel assessment of proposal 43 concluded that there was insufficient evidence to make a determination against the CITES criteria. CoP18 Prop. 44 to include white-spotted wedgefish, Rhynchobatus australiae and Rhynchobatus djiddensis in Appendix II in accordance with Article II paragraph 2(a). The FAO Expert Panel assessment of proposal 44 concluded that there was insufficient evidence to make a determination against the CITES criteria. CoP18 Prop. 45 to include the subgenus Holothuria (Microthele): Holothuria fuscogilva, Holothuria nobilis and Holothuria whitmaei in Appendix II in accordance with Article II paragraph 2(a). The FAO Expert Panel assessment of proposal 45 concluded that the available data for Holothuria fuscogilva does not meet, there was insufficient evidence to make a determination for Holothuria nobilis and Holothuria whitmaei does meet the CITES Appendix II listing criteria. -