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Yusheng ZHANG Third Institute of Oceanography State Oceanic Administration, China June 13, 2011

Assessment of environmental estrogens on commercial species of fish health and their habitat in mariculture areas in southern Fujian, China and XXXX, USA. Yusheng ZHANG Third Institute of Oceanography State Oceanic Administration, China June 13, 2011. Outline. 1. Background 2. Objective

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Yusheng ZHANG Third Institute of Oceanography State Oceanic Administration, China June 13, 2011

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  1. Assessment of environmental estrogens on commercial species of fish health and their habitat in mariculture areas in southern Fujian, China and XXXX, USA Yusheng ZHANG Third Institute of Oceanography State Oceanic Administration, China June 13, 2011

  2. Outline 1. Background 2. Objective 3. Research Content 4. Annual Work Plan 5. Expected Results

  3. 1. Background

  4. EEs • Endocrine disruptors (EDs) are a group of structurally diverse compounds that may adversely affect the health of humans, wildlife, or their progenies by interaction with the endocrine system. • EDs e.g. EEs (environmental estrogens) or EDCs (endocrine disrupting compounds).

  5. Where are EEs from? (1) Air source: waste burning; industrial leakage; building material and furniture volatile commodity; (2) Water source: industrial waste water, sewage, rainwater etc; (3) Food source: contaminated food with pesticides, food additives, preservatives etc; (4) soil source ：industrial and agricultural activities.

  6. Major abnormal function of EEs animal reproductive organs, reproductive function and reproductive behavior, metabolic disorders etc.

  7. How many kinds of EEs? (1) .

  8. How many kinds of EEs? (2) • about 70 kinds: several heavy metals Cd, Pb, Hg etc; 67 organic compounds including 44 pesticides; some other dyes, fragrants, paints, detergents, surfactants, plastic product additives, pharmaceuticals, food additives, animal and plant hormones

  9. EEs action mechanism EEs→Receptor → EEs-R complex →DNA (VTG gene)→mRNA → protein (VTG) EEs: persistent, accumulating→ great number of VTG →abnormal physiological function!!

  10. Paradigm for the fate of Organics in Aqueous systems(from Dan Schlenk)

  11. Potential Spatial and TemporalImpacts of Environmental Stressors

  12. 2. Objective More and more attention has been paid to the effects of environmental estrogens on fishery resources health. Fish: top predator; Food safety. • Fish biomarkers will be studied and applied to understand and assess the effects of environmental estrogens on commercial species of fish health and their habitat in mariculture areas in southern Fujian, P. R. China and XXX, California, USA. • Moreover, a strategy will be suggested to prevent and control the effects of environmental estrogen contamination/pollution on commercial species of fish in mariculture area for local governmental department concerned.

  13. * Taiwan

  14. Location of Dngshan island

  15. Mariculture area of Dongshan in southern Fujian, China • Location: Between the East China Sea the South China Sea 117.29 °～117.57 °E, 23.56 °～23.79 °N • Dongshan island/county ——subtropic area population: 0.248million 33 islands, the largest one 194 km2 average 20.8℃ (12.9℃ -27.4℃ ) many bays; 317.5 km2 (<2km) • One of 4 most important counties for mariculture in china

  16. Mariculture area of Dongshan in southern Fujian, China • High biodiversity 1352 species phytoplankton: 211 species zooplankton: 167 species benthos: 793 species neckton: 181 species • The Cross area of Minnan and Huidong fish grounds.

  17. Mariculture of Dongshan in 2007 • Caged fish culture: 63.6 ，6515t; • Eel: 384 he2 ，2060t; • Shellfish: 5283 he2, 11622t; • Shrimp: 994 he2 ，2119t; • …… Total: 8548 he2 ，151328 t。

  18. Caged culture

  19. Major cultured species of fish 石斑鱼 Epinephelussp 赤点石斑 Epinephelus akaara 鲈鱼 Lateolabrax japonicus Sciaenops ocellatus

  20. 赤鯮鱼 Dentex tumifrons 蓝子鱼 Siganus virgatus 黄鳍鲷 Sparus latus Houttuyn 黑鲷Sparus macrocephalus 鮸鱼Miichthys miiuy 鲻鱼 Mugil cephalus Major cultured species of fish

  21. 九孔鲍Haliotis diversicolor 菲律宾蛤Ruditapes philippinarum 太平洋牡蛎 Crassostrea gigas 龙须菜 Gracilaria sp. 太平洋牡蛎 Crassostrea gigas 紫菜 Porphyra yezoensis 海带 Thallus Laminariae Major cultured shellfish and algea

  22. Marine endangered species in Dongshan waters

  23. 3. Research Content Ⅰ • The following contents are included in the present study: 1). To select a proper mariculture area and some commercial species of fish from the mariculture area from each country for cooperative study, respectively; 2). To study and establish marine fish biomarkers, such as VGT and CYP1A western blot and ELISA, “comet ” assay etc.

  24. Research Content Ⅱ 3). To apply fish biomarkers for monitoring effects of EES on commercial species of fish health in the mariculture area combing chemical analysis of major EES in the area; 4). To assess the effects of environmental estrogens on commercial species of fish health and their habitat using fish VGT, CYP1A, E2、T and “comet” assay etc as biomarkers and combining the chemical analysis; 5). To suggest a strategy for preventing and controlling the effects of environmental estrogen contamination/pollution on commercial species of fish in mariculture area for local governmental department concerned.

  25. 4. Annual Work Plan • 1)．July, 2011 ~ December, 2011 To work out the proposal for cooperative study on effects and assessment of environmental estrogens on commercial species of fish health and their habitat in the mariculture areas in southern Fujian, P. R. China and XXXX, USA; To select a proper mariculture area from each country for cooperative study, respectively; To choice some proper commercial fish species from the mariculture area in each country for the study.

  26. 2)．January, 2012 ~ December, 2012 To optimize measuring conditions of fish plasma VTG western blot and ELISA; To set up measuring techniques of fish hepatic CYP1A western blot and ELISA; To establish fish “comet” assay etc. Chinese scientists visit American lab for cooperative study and learn measuring techniques of new biomarkers.

  27. 3)．January, 2013 ~ December, 2013 The 1st year of field study: To monitor biochemical effects of environmental estrogens of commercial species of fish health in maricuture areas in southern Fujian, P. R. China and XXXX, USA for both the cooperative labs using fish VGT, CYP1A, E2、T and “comet” assay etc as biomarkers. To conduct chemical analysis of environmental estrogens in water and sediment samples from the mariculture areas for the bilateral partners. American scientists visit China to exchange the 1st year of field study results etc.

  28. 4)．January, 2014 ~ December, 2014 The 2nd year of field study: To monitor biochemical effects of environmental estrogens of commercial species of fish health in maricuture areas in Southern Fujian, P. R. China and XXXX, USA for both the cooperative labs using fish VGT, CYP1A, E2、T and “comet” assay etc as biomarkers. To conduct chemical analysis of environmental estrogens in water and sediment samples from the mariculture areas for the bilateral partners.

  29. 5)．January, 2015 ~ December, 2015 To conduct data interpreting and summarize research results on effects and assessment of environmental estrogens on commercial species of fish health and their habitat in mariculture areas in southern Fujian, P. R. China and XXXX, USA, respectively; To compare the results about effects and assessment of environmental estrogens on commercial species of fish health and their habitat in mariculture areas in southern Fujian, P. R. China and XXXX, USA; To write papers for publication; To finish a proposal on prevention and control of environmental estrogen contamination/pollution in mariculture area for the both labs, respectively; To hold a workshop on effects and assessment of environmental estrogens on commercial species of fish health and their habitat in mariculture areas if it is necessary; To discuss the possibility for further cooperative study.

  30. 5. Expected Results 1). Research report: Effects and assessment of environmental estrogens on commercial species of fish health and their habitat in mariculture area in southern Fujian, P. R.China; 2). Research report: Effects and assessment of environmental estrogens on commercial species of fish health and their habitat in mariculture area in XXXX, USA; 3). A strategy to prevent and control the effects of environmental estrogen contamination/pollution on commercial species of fish in mariculture area in southern Fujian, P. R. China; 4). A strategy for to prevent and control the effects of environmental estrogen contamination/pollution on commercial species of fish in mariculture area in XXXX, USA; 5). To publish 4~6 research papers totally.

  31. Initial discussion with US partner • Dan Schlenk, Ph.D. Professor • Aquatic Ecotoxicology • Department of Environmental Sciences • University of California, Riverside CA 92521 • Riverside, 951-827-2018 • 951-827-3993-FAX • Somebody else??

  32. Thanks for your attention!

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