?????????,????CC????? - PowerPoint PPT Presentation

About This Presentation
Title:

?????????,????CC?????

Description:

Title: PowerPoint Author: Carl Last modified by: Video Created Date: 12/27/2001 3:17:29 AM Document presentation format: (4:3) – PowerPoint PPT presentation

Number of Views:44
Avg rating:3.0/5.0
Slides: 35
Provided by: Carl1209
Category:
Tags: bycatch

less

Transcript and Presenter's Notes

Title: ?????????,????CC?????


1
???????????
?9??????
  • ???
  • ??????????????????
  • ?????????,????CC??????????????????2.5?????

2
?????? ??
  • ?????????
  • ?????????
  • ??????(???)

Flickr See1,Do1,Teach1
3
????
  • ??????
  • ???????????????
  • ????????(bycatch)
  • ?????????????????

4
?????????
  • ?(??)???
  • ????(????)
  • ????(??)
  • ????(????)

5
?????????(??????)
  • ??
  • ?????????
  • ????????
  • ????
  • ????
  • ??
  • ??????

6
???????????
  1. ????????????(?????)
  2. ??????????????????
  3. ???????????
  4. ?????????????????
  5. ??????,??????????
  6. ???????????,?????????

7
???????????
  • ?????????,????????????????,???????????????????????
    ???,?????

8
????????? MMPA
  • ???????????MMPA(Marine Mammal Protection Act)
  • ???1972
  • ???1994
  • ????????
  • ??????
  • ????????
  • MMPA
  • http//www.nmfs.noaa.gov/pr/pdfs/laws/mmpa.pdf

9
??? gillnet fishery
  • ?????????,???????,?????????????

10
???????????
  • ??????????(?????? IUCN 2003)
  • ????????????????(Read et al., 2006)
  • ?????????(WWF)?????????,????????????????????
  • ???????????????????

11
????????
  • 19992001??????????????????????
  • ?????????
  • 6071???????
  • ????????4.4?
  • ????????????

12
???????????
  • ????????????
  • ????????????????????
  • ???????????????
  • ?????????????????

13
????????
  • ???? vs. ????,???????
  • ?????????!
  • ??????
  • ??????

14
1999-2001 ????????
  • ????
  • ????????
  • ?????????
  • ????1999-2001
  • ??
  • ?????????????? ( Longline, gillnet, torchlight,
    harpoon)

15
??????????????
  • ????
  • ??? ??? ???
  • 60 25 0
  • ????
  • ??? ??? ??
  • 71 55 0
  • ???????????????????

16
????????
????Frasers d.
???? Spinner dolphin
????? Pantropical spotted d.
???? Bottlenose d.
???? Rissos d.
?????????????????????????,???????????????,???????
?,????????????
17
??????
  • ??????
  • ??????
  • ????
  • ??
  • ????
  • ?????
  • ????

18
?????????
  • 1999-2000 ???????
  • ?????????4.4 ?/??
  • ???Fishing effort ? (?? ??)
  • ??????571
  • ?????50 boats
  • ??? 310?x 4.4 1366?/?
  • ?????????
  • 1366 x 2 2700?/?

19
  • ???????
  • ???????????????,??????????(??)?

20
PBR ???????? (Potential Biological Removal) Nmin
x 1/2Rmax x Fr
Nmin ?????minimum population estimate Rmax
?????maximum net productivity rate (0.04) Fr
????recovery factor (0.0 1.0) ?????? lt2 ?????
21
????????
  • ????????? ???
  • ????????????????
  • ????(????19951998),825?(?????,??????? 1996)?
  • ?PBR 17
  • ???? (??1997-2000),????? 10,000 ? (??????)?
  • ?PBR 200

22
???????????
  • 2001???????gtPBR
  • ????57 ????gt 17 ? (PBR)
  • ????2,045 ??????gtgt 200 ?(PBR)
  • ??????????,????
  • ?????? ?

23
?????????????????? (????2003)
  • ????
  • ??????????????????
  • ??????????????

24
??????????
  • 20022003
  • ?????
  • ???????

25
???? ?????
  • ????73?
  • ???22?,?????7?
  • ??????? 30
  • ??????? 32
  • ??????????
  • 30 X 32 9.6 ( 7/73 )

26
???????
  • ??????(n22)
  • ?????
  • ????
  • ????
  • ???
  • ??????
  • ????(n2)
  • ??(n5)

27
???? ????
  • ????
  • ????7,327643?(n29)
  • ??????7,9011581?(n13)
  • ??????3,137419?(n6)

28
????
  • ????????????
  • 2001-2005??????400600?
  • 2000???1013?
  • ?2003?6?18-19?????,????74?,??6???,????8,???180??
  • ????????
  • ??????

29
??
  • ??????????9.6,???????(gt 50)?
  • ???????????
  • ?????????????,?????????,??????
  • ??????????????????

30
Bycatch ?????
  • ????????98?????????????98????????,???????????,????
    ??????????(swordfish)??,??????(longline)????(drif
    t gill net)?????,????????????????,????????????????
    ??????,????????????????(MMPA),??????????

31
??????????
  • ????????
  • ?????

32
????
?? ???? ??/??
?????????????????????????,???????????????,????????,????????????
?????????????????????????,???????????????,????????,????????????
?????????????????????????,???????????????,????????,????????????
?????????????????????????,???????????????,????????,????????????
?????????????????????????,???????????????,????????,????????????
See1,Do1,Teach1 http//www.flickr.com/photos/mpaulmd/2365634322/
33
????
?? ???? ??/??
NOAA ???????http//en.wikipedia.org/wiki/FileEntangled_porpoise.jpg
Whales, dolphins porpoises2nd ed. By Mark Carwardine 1999. Facts on File Publ. New York.




34
????
  • ????????????????????,????????
  • ?????????????? http//ecology.lifescience.ntu.edu
    .tw/index.htm
  • ?????????02-3366-2468

35
E N D !
Write a Comment
User Comments (0)
About PowerShow.com