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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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slide1

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
Outline

1. Background

2. Objective

3. Research Content

4. Annual Work Plan

5. Expected Results

slide4
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).
where are ees from
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.

major abnormal function of ees
Major abnormal function of EEs

animal reproductive organs, reproductive function and reproductive behavior, metabolic disorders etc.

how many kinds of ees 2
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
ees action mechanism
EEs action mechanism

EEs→Receptor → EEs-R complex →DNA

(VTG gene)→mRNA → protein (VTG)

EEs: persistent, accumulating→ great number of VTG

→abnormal physiological function!!

2 objective
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.
slide14

*

Taiwan

mariculture area of dongshan in southern fujian china
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
mariculture area of dongshan in southern fujian china1
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.
mariculture of dongshan in 2007
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。

major cultured species of fish
Major cultured species of fish

石斑鱼 Epinephelussp

赤点石斑 Epinephelus akaara

鲈鱼 Lateolabrax japonicus

Sciaenops ocellatus

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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

slide22

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

3 research content
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.

research content
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.

4 annual work plan
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.

slide27
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.

slide28
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.

slide29
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.

slide30
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.

5 expected results
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.

initial discussion with us partner
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??