Assessing the benthic habitat quality in the Huanghe (Yellow River) Estuary and its adjacent areas using AMBI and M-AMBI
- PDF / 1,039,246 Bytes
- 8 Pages / 595.276 x 841.89 pts (A4) Page_size
- 25 Downloads / 209 Views
Assessing the benthic habitat quality in the Huanghe (Yellow River) Estuary and its adjacent areas using AMBI and M-AMBI LUO Xianxiang1*, ZHANG Juan1, YANG Jianqiang2,3, SONG Wenpeng3,4, CUI Wenlin3,4 1
Key Laboratory of Marine Environment and Ecology, Ocean University of China, Qingdao 266100, China North China Sea Branch of State Oceanic Administration, Qingdao 266033, China 3 Laboratory of State Oceanic Administration for Marine Spill Oil Identification and Damage Assessment Technology, Qingdao 266033, China 4 North China Sea Monitoring Center, North China Sea Branch of State Oceanic Administration, Qingdao 266033, China 2
Received 9 January 2013; accepted 16 October 2013 ©The Chinese Society of Oceanography and Springer-Verlag Berlin Heidelberg 2014
Abstract The protection of the biological diversity and the maintenance of the regional ecological integrity for the Huanghe (Yellow River) Estuary and its adjacent areas are practically significant and valuable. However, frequent human activities and natural climate changes have caused vigorous disturbances on the ecosystem in these sea areas. An objective assessment on the benthic habitat quality (BHQ) of the Huanghe Estuary and its adjacent areas is conducted, using AZTI’s Marine Biotic Index (AMBI) and multivariate AMBI (M-AMBI) based on the data of macrobenthos in May and August 2011. The results show that both the indices do not correlate significantly, and their assessment results are greatly different. All of the samples assessed using the AMBI were “high” or “good”, because the ecological group I (EGI) and the ecological group II (EGII) were dominant macrobenthic ecological groups in the research area. Owing to a low species’ richness and a high individual abundance in some samples, the BHQ levels using the M-AMBI were worse than those of the AMBI. Significant correlations are observed between the M-AMBI, water depth, bottom water salinity and dissolved inorganic nitrogen, thus the M-AMBI could sensitively respond to environmental changes and distinguish influences from uninfluenced stations, but the AMBI could not. The consistent results between the AMBI and the M-AMBI mainly appeared in the uninfluenced (undisturbed or slightly disturbed) stations. Therefore, the M-AMBI is more effective than the AMBI in assessing the benthic habitat quality in the Huanghe Estuary and its adjacent areas. Using the M-AMBI to assess the BHQ of the Huanghe Estuary and its adjacent areas, the results show that 3% of the stations are undisturbed and the BHQs are “high”, and 61% of the stations are slightly disturbed and those of the BHQ are “good”, and the rest are meanly disturbed and those of the BHQ are “moderate”. Key words: biotic indices, AMBI, M-AMBI, benthic habitat quality, Huanghe (Yellow River) Estuary Citation: Luo Xianxiang, Zhang Juan, Yang Jianqiang, Song Wenpeng, Cui Wenlin. 2014. Assessing the benthic habitat quality in the Huanghe (Yellow River) Estuary and its adjacent areas using AMBI and M-AMBI. Acta Oceanologica Sinica, 33(9): 117–124, doi: 10.1007/s131
Data Loading...
