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Chinese Journal of Applied Ecology ›› 2017, Vol. 28 ›› Issue (6): 1984-1992.doi: 10.13287/j.1001-9332.201706.019

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Species composition and distribution patterns of ichthyoplankton within and outside artificial reefs in Qingshan Bay, Qingdao, China

GUO Shu-xin1, GAO Dong-kui1,2, ZHANG Xiu-mei1,3*, LI Wen-tao1, ZHANG Pei-dong1   

  1. 1Ministry of Education Key Laboratory of Mariculture, Ocean University of China, Qingdao 266003, Shandong, China
    2College of Marine Science and Environment Engineering, Dalian Ocean University, Dalian 116023, Liaoning, China
    3Functional Laboratory of Marine Fisheries Science and Food Production Process, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266072, Shandong, China
  • Received:2016-10-25 Published:2017-06-18
  • Contact: *E-mail:xiumei1227@163.com
  • Supported by:
    This work was supported by the National Natural Science Foundation of China (31572227,41676153) and the Marine Industry Scientific Research Special Funds for Public Welfare Project (201405010)

Abstract: To assess the fish attraction and shelter effects of the artificial reefs in Qingshan Bay of Qingdao, the species composition and distribution patterns of ichthyoplankton in artificial reefs were investigated using vertical and horizontal tows in 2014 and 2015. In total, 7306 fish eggs and 52 fish larvae, belonging to 4 orders, 9 families, 11 genera and 12 species, were collected during 7 cruises in spring, summer and autumn of 2014. In 2015, 10373 eggs and 159 fish larvae, belonging to 6 orders, 11 families, 14 genera and 15 species, were collected in the same period as in 2014. Perciformes were the majority for both fish eggs and larvae collected during the two surveys, followed by Pleuronectiformes. Among fish eggs, Sillago japonica and Cynoglossus joyneri were the most dominant species. Among fish larvae, S. japonica exhibited the highest dominance but was not the dominant species. The high dominant species in both fish eggs and larvae appeared alternately in diffe-rent seasons. The Margalef richness index (R), Shannon diversity index (H) and Pielou evenness index (J) of ichthyoplankton community were low during the spring, summer, and autumn, showing an instable community structure of ichthyoplankton. The average trophic level of adult fish corresponding to the ichthyoplankton collected in the two years were 3.71 and 3.78, respectively, and both belonged to low carnivorous fish of third trophic level. All the species were either warm-tempe-rate species or warm-water species, which was coincident with the warm-temperate zone characteristic. Comprehensive analysis showed that the biodiversity of the ichthyoplankton community within the artificial reef areas was higher than that outside the artificial reef areas, which might be linked to flow velocity, flow field characteristics, or spatial heterogeneity of artificial reef areas.