| PANG Shaojun,SHAN Tifeng. 2008. Temperature and light tolerance of representative brown, green and red algae in tumble culture revealed by chlorophyll fluorescence measurements. Acta Oceanologica Sinica, (4):137－146 |
| Temperature and light tolerance of representative brown, green and red algae in tumble culture revealed by chlorophyll fluorescence measurements |
| Temperature and light tolerance of representative brown, green and red algae in tumble culture revealed by chlorophyll fluorescence measurements |
| Received:August 22, 2007 Revised:January 03, 2008 |
| DOI： |
| Key words:seaweeds chlorophyll fluorescence measurements Pulse Amplitude Modulation temperature tolerance integrated aquaculture |
| 中文关键词: seaweeds chlorophyll fluorescence measurements Pulse Amplitude Modulation temperature tolerance integrated aquaculture |
| 基金项目:The "863" Hi-Tech Research and Development Program of China under contract Nos 2006AA10A412 and 2006AA10A416; a project from the National Natural Science Foundation of China under contract No. 30671596; a project from the Chinese Academy of Sciences under contract No. KSCX2-YW-N-47-07; and a project from the Ministry of Science and technology of China under contract No. 2006GB24910469. |
| Author Name | Affiliation | E-mail | | PANG Shaojun | Marine Biological Culture Collection Center, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China | sjpang@ms.qdio.ac.cn | | SHAN Tifeng | Marine Biological Culture Collection Center, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China
Graduate University of Chinese Academy of Sciences, Beijing 100049, China | |
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| Abstract: |
| Laminaria japonica, Undaria pinnatif ida, Ulva lactuca, Grateloupia turuturu and Palmaria palmata are suitable species that fit the requirements of a seaweed-animal integrated aquaculture system in terms of their viable biomass, rapid growth and promising nutrient uptake rates. In this investigation, the responses of the optimal chlorophyll fluorescence yield of the five algal species in tumble culture were assessed at a temperature range of 10~30℃. The results revealed that Ulva lactuca was the most resistant species to high temperature, withstanding 30℃ for 4 h without apparent decline in the optimal chlorophyll fluorescence yield. While the arctic alga Palmaria palmata was the most vulnerable one, showing significant decline in the optimal chlorophyll fluorescence yield at 25℃ for 2 h. The cold-water species Laminaria japonica, however, demonstrated strong ability to cope with higher temperature (24~26℃) for shorter time (within 24 h) without significant decline in the optimal chlorophyll fluorescence yield. Grateloupia turuturu showed a general decrease in the optimal chlorophyll fluorescence yield with the rising temperature from 23 to 30℃, similar to the temperate kelp Undaria pinnatifida. Changes of chlorophyll fluorescence yields of these algae were characterized differently indicating the existence of species-unique strategy to cope with high light. Measurements of the optimal chlorophyll fluorescence yield after short exposure to direct solar irradiance revealed how long these exposures could be without significant photoinhibition or with promising recovery in photosynthetic activities. Seasonal pattern of alternation of algal species in tank culture in the Northern Hemisphere at the latitude of 36°N was proposed according to these basic measurements. |
| 中文摘要: |
| Laminaria japonica, Undaria pinnatif ida, Ulva lactuca, Grateloupia turuturu and Palmaria palmata are suitable species that fit the requirements of a seaweed-animal integrated aquaculture system in terms of their viable biomass, rapid growth and promising nutrient uptake rates. In this investigation, the responses of the optimal chlorophyll fluorescence yield of the five algal species in tumble culture were assessed at a temperature range of 10~30℃. The results revealed that Ulva lactuca was the most resistant species to high temperature, withstanding 30℃ for 4 h without apparent decline in the optimal chlorophyll fluorescence yield. While the arctic alga Palmaria palmata was the most vulnerable one, showing significant decline in the optimal chlorophyll fluorescence yield at 25℃ for 2 h. The cold-water species Laminaria japonica, however, demonstrated strong ability to cope with higher temperature (24~26℃) for shorter time (within 24 h) without significant decline in the optimal chlorophyll fluorescence yield. Grateloupia turuturu showed a general decrease in the optimal chlorophyll fluorescence yield with the rising temperature from 23 to 30℃, similar to the temperate kelp Undaria pinnatifida. Changes of chlorophyll fluorescence yields of these algae were characterized differently indicating the existence of species-unique strategy to cope with high light. Measurements of the optimal chlorophyll fluorescence yield after short exposure to direct solar irradiance revealed how long these exposures could be without significant photoinhibition or with promising recovery in photosynthetic activities. Seasonal pattern of alternation of algal species in tank culture in the Northern Hemisphere at the latitude of 36°N was proposed according to these basic measurements. |
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