Dissertation > Excellent graduate degree dissertation topics show

Distribution and Seasonal Changes of Macro-benthic in Dalian Changxing Island

Author: YuFang
Tutor: WangHongWei
School: Liaoning Normal University
Course: Marine biology
Keywords: Dalian-Changxing island macro-benthic Intertidal zone Seasonal variation
CLC: Q958.8
Type: Master's thesis
Year: 2013
Downloads: 28
Quote: 0
Read: Download Dissertation

Abstract


Do research in distribution and seasonal changes of macro-benthic collected fromnineteen intertidal stations in the Changxing island (Changxing island、Xizhong island、Jiaoliuisland) during July2011(summer)、May2012(spring)、October2012(autumn) and January2013(winter). The results showed that:(1)Total90species were identified, including80species from Changxing island,53species from Xizhong island, and60species from Jiaoliuisland;(2)The macro-benthic in intertidal zone annual average biomass was78.91g/m~2andabundance was325.73ind/m~2.(3)There were13kinds of dominant species collected, namely7Mollusks,3Arthropoda、2Annelida and1Echinodermata.(4)The number of speciesdiversity index is as below, first, middle intertidal zone,second, low intertidal zone and thirdis high intertidal zone.The results showed that the different species different sediment. There are66speciesin rock sediments、25species in sand sediments、31species in mud sediments and48speciesin boulder sediments; there are remarkable difference in density and biomass of the differentsections as boulder section <sand section <mud section <rock section; The species diversityindex in this area, H’、D at the sand section <boulder section<mud section <rock section, Jat the rock section <mud section<boulder section <sand section.The species and species numbers varied in different seasons.There are70species insummer、63species in spring、46species in autumn、36species in winter. there areremarkable difference in density and biomass of the different seasons as winter<autumn<spring<summer.The species diversity index in Changxing island were also found changinggreatly in four seasons,the values of J and H ’ were highest in summer, lowest in winter; D isthe highest in autumn, the lowest in spring.The species diversity index in Changxing islandwere also found changing greatly in three tidal zones,the values of H ’、D、J are highest inmedium tidal zone、the lowest in high tidal zone.Comparing with the data of other area of Bohai sea, found downward trend of thebiomass numbers and abundance of macro-benthic in this area.Through analyses of macro-benthic community patterns in the intertidal zone of theChangxing Island in four seasons, it came to conclusion that: the human’s interference、different bottom sediment environment and different seasons environment are the importantfactor on distribution of macro-benthic.

Related Dissertations

  1. Dynamic of Phytoplankton Community in Rehabilitating Wetland,Q948.8
  2. Water Chemistry and Chemical Weathering at Lake Qinghai and Lake Daihai Catchments,P592
  3. Study on the Trophic Structure and the Biomagnification of the Heavy Metal in the Polyculture Pond,S917
  4. Seasonal Variation of Gut Cyanophyta Contents and Liver GST Expression of Four Freshwater Fishes in Tropical Xiangang Reservoir (Huizhou, China),S917.4
  5. Seasonal Variation and Output of C、N、P in Jialing River,P342
  6. Ecology of Macrobenthic Community in Rushan Bay and Its Adjacent Waters,Q958.8
  7. Preliminary Investigation on the Taxonomy and Ecology of Benthic Ciliates in Intertidal Area,Q959
  8. Shorebirds Distribution, Habitat Selection and Use in Yangtze River Estuary,Q958.1
  9. Ecology of Macrozoobenthic Community in Wetland of Shoals in the Yangtze Estuary,Q958.8
  10. Studies on the Relationship between Solar Radiation and the Primary Production of Phytoplankton Assemblages in the Coastal Water of South China Sea,Q948.8
  11. Seasonal Dynamic Patterns of the Water Quality and Sediment Sorption and Release of Daming Lake,X824
  12. Es characteristics of low-latitude ionosphere (Hainan),P352
  13. Research on Temporal and Spatial Distribution of Daily Geomagnetic Variation in China,P318
  14. Biogeochemistry of Biogenic Elements in the Intertidal Flat and Adjacent Seawater within the Changjiang (Yangtze River) Estuary,P734
  15. Ecology of Blue Sheep (Pseudois Nayaur) in Helan Mountains, China,Q958
  16. Ecological and Toxicological Studies on Microcystins,X173
  17. Study on the Community Ecology of Macrobenthic Fauna in the Wetland of the Zhanjiang Mangrove Nature Reserve,Q958.8
  18. Seasonal Variation of Periphytic Diatom Communities in Two Small Streams, Guangdong Province, Southern China,Q948.8
  19. Study on Macrobenthic Animal and Assay of Water Quality of Nansi Lake,Q958.8
  20. The Ecological Study of Macrobenthos in Qingdao Bay Intertidal Zone,Q958.8
  21. A Study on Enrichment of Rare Earth Elements in Intertidal Zone and Their Ecological Effects from Northern Hainan Island,P736.21

CLC: > Biological Sciences > Zoology > Animal ecology and zoogeography > Aquatic animals learn
© 2012 www.DissertationTopic.Net  Mobile