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"【开源】PHP精品轻量级图片站群系统开源版,绿茶图片泛目录站群系统程序,支持二开✅项目合作 二开均可 TG:saolei44✅.UQVbvdOyujrxzQ" 的搜尋 由 3111 至 3120 約有 3132 筆結果
...石角附近的龍鼓水 道。由於這些移動路線的存在對海豚甚為重要,因此必須加以研究,並以防將來 在大嶼山附近的一些工程影響白海豚繼續使用這些移動通道。 在 2012-13 年間,研究員在大嶼山一帶水域的水底聲音監察站,共錄取了 101 個、合共 10.16 小時的水底聲音片段。一項針對海豚哨聲的研究,利用了 2010-211 年間搜集的 13 個海豚發聲片段,共分析了 1,410 個哨聲樣本;該研究共辨別出 27 種白海豚哨聲,足證香港的中華白海豚會發出眾多不同的聲音,而其哨聲的 輪廓比其他地方的駝背豚種群更為複雜。未來的研究將集中分析白海豚哨聲,會 否因不同程度的人為噪音所影響而有所改變。 一項嶄...
... 高濃度的環境污染物而導致免疫力較差有關。此外,有關六十隻雌性海豚的產幼 間隔及牠們與幼豚聯繫的研究發現,有很多幼豚只有一次與母親聯繫的目擊紀 錄,這可能與偏低的幼豚存活率有關,擱淺海豚紀錄的數據亦支持這個推斷。偏 低的幼豚存活率可能是由海水污染、及由船隻及觀豚活動所發出的水底噪音造 成。要減輕此問題,最有效方法就是儘快保護重要的海豚育幼生境。此外,海豚 母子的最短聯繫時間平均值為 20.4 個月,而大部分聯繫應不會超過 24 個月。雌 性海豚產幼間隔最長時間的平均值為 62.6 個月。總括來說,香港的中華白海豚 一般較為長壽,但雌性海豚的產幼間隔較長,而牠們的幼豚存活率及產幼能力亦 較低。這些...
... Tender Ref.: AFCD/MWFA/2021 Part 1 – Lodging of Tender - 1 - THE GOVERNMENT OF THE HONG KONG SPECIAL ADMINISTRATIVE REGION AGRICULTURE, FISHERIES AND CONSERVATION DEPARTMENT Tender for the Provision of Service of Monitoring Work on Fishing Activities to the Agriculture, Fisheries and Conservation D...
... Tender Ref.: AFCD/MWFA/2020 Part 1 – Lodging of Tender Page 1 of 1 THE GOVERNMENT OF THE HONG KONG SPECIAL ADMINISTRATIVE REGION AGRICULTURE, FISHERIES AND CONSERVATION DEPARTMENT Tender for the Provision of Service of Monitoring Work on Fishing Activities to the Agriculture, Fisheries and Conserva...
... Tender Ref.: AFCD/MWFA/2021 Part 1 – Lodging of Tender - 1 - THE GOVERNMENT OF THE HONG KONG SPECIAL ADMINISTRATIVE REGION AGRICULTURE, FISHERIES AND CONSERVATION DEPARTMENT Tender for the Provision of Service of Monitoring Work on Fishing Activities to the Agriculture, Fisheries and Conservation D...
... Tender Ref.: AFCD/MWFA/2020 Part 1 – Lodging of Tender Page 1 of 1 THE GOVERNMENT OF THE HONG KONG SPECIAL ADMINISTRATIVE REGION AGRICULTURE, FISHERIES AND CONSERVATION DEPARTMENT Tender for the Provision of Service of Monitoring Work on Fishing Activities to the Agriculture, Fisheries and Conserva...
... Final report on the pet food testing exercise in Hong Kong (Ref: AFCD/IQ/TS/01/17) Prepared by Eurofins Food Testing Hong Kong Limited for AFCD Page 1 of 72 Final Report on the “Pet Food Testing Exercise in Hong Kong” for the Agriculture, Fisheries and Conservation Department (Ref: AFCD/IQ/...
... Final report on the pet food testing exercise in Hong Kong (Ref: AFCD/IQ/TS/01/17) Prepared by Eurofins Food Testing Hong Kong Limited for AFCD Page 1 of 72 Final Report on the “Pet Food Testing Exercise in Hong Kong” for the Agriculture, Fisheries and Conservation Department (Ref: AFCD/IQ/...
... Final report on the pet food testing exercise in Hong Kong (Ref: AFCD/IQ/TS/01/17) Prepared by Eurofins Food Testing Hong Kong Limited for AFCD Page 1 of 72 Final Report on the “Pet Food Testing Exercise in Hong Kong” for the Agriculture, Fisheries and Conservation Department (Ref: AFCD/IQ/...
... Final report on the pet food testing exercise in Hong Kong (Ref: AFCD/IQ/TS/01/17) Prepared by Eurofins Food Testing Hong Kong Limited for AFCD Page 1 of 72 Final Report on the “Pet Food Testing Exercise in Hong Kong” for the Agriculture, Fisheries and Conservation Department (Ref: AFCD/IQ/...