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What should we do in red tide incident? Fish farmers A flag system is used to facilitate dissemination of early warning messages to mariculturists in fish culture zone. For non-toxic red tide: - For non-toxic red tide but with a chance to cause oxygen depletion, a yellow flag is raised to remind the mariculturists to check closely the dissolved oxygen levels in the water, stop feeding the fish ...
《公約》旨在保護瀕危物種,防止牠們因國際貿易而遭到過度利用。 這些列明瀕危物種列載於該條例附表1的附錄內。 進口列明物種的許可證要求 . 進口列明物種到香港,必須首先獲得出口地《公約》管理機構*發出的有效公約出口准許證。 某些物種也須要申領由漁農自然護理署(漁護署)發出的進口許可證。 每張許可證可包含多於一個物種,但只限用於同一批貨物。 進口許可證發出前不應安排付運或運送。 申請人亦應注意管有許可證的規定並事先申請所須的管有許可證。 附錄I 物種: 附錄II 物種: 必須事先取得出口地的有效《公約》出口准許證,及本署發出的進口許可證。 若出示先前出口地的有效的《公約》出口准許證,則不須進口許可證(但野生的活體動物或植物除外)。
How do red tides/HABs affect you? Impacts on Aquaculture Some algal species may produce mucus that clog the gills or toxins that damage the gills, both can impair the fish's ability to respire. The fish may die of suffocation. Fish kills in fish cage Mucus clog the gill Red tide may also kill fish indirectly by depleting the oxygen in water. The massive number of algae will consume a large ...
2023年12月5日 · Will the seasonal changes affect the spatial pattern of Marine Benthic Organisms? Results of both summer and winter surveys showed minimal seasonal changes in sediment characteristics at the stations. Of the 603 species recorded, 287 species were present in both summer and winter surveys, illustrating seasonal variations for certain infaunal species. However, in terms of overall spatial ...
2023年12月5日 · Life History and Behaviour How often do they molt? A molting horseshoe crab A molt of horseshoe crab Horseshoe crabs continue to molt and grow for more than ten years until they reach maturity. Molting occurs several times during the first two to three years and about once a year afterwards. Back Back to Top
What is Red Tide / HAB? Factors that cause the formation of Red Tides / Algal blooms History of red tide / HAB in Hong Kong Damages caused by red tide/HAB How do red tides/HABs affect you? What should we do in red tide incident? Back Back to Top
Q1 What is CITES? In order to ensure that international trade in specimens of wild animals and plants does not threaten their survival, the Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES) was first signed in 1973 and entered into force in 1975 to regulate the import and export of endangered species through a permit system. As of April 2018 ...
