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W.A Montevecchi, C.M Burke, G.K. Davoren 2 , and F.K. Wiese 3 Coasts Stress Project - PowerPoint PPT Presentation


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TYPE II ERROR ON THE GRAND BANKS INADEQUATE MONITORING OF MARINE BIRDS AND MAMMALS AT HIBERNIA AND TERRA NOVA. W.A Montevecchi, C.M Burke, G.K. Davoren 2 , and F.K. Wiese 3 Coasts Stress Project Biopsychology Programme, Memorial University of Newfoundland

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TYPE II ERROR ON THE GRAND BANKS INADEQUATE MONITORINGOF MARINE BIRDS AND MAMMALS AT HIBERNIA AND TERRA NOVA

W.A Montevecchi, C.M Burke, G.K. Davoren2, and F.K. Wiese3

Coasts Stress Project

Biopsychology Programme, Memorial University of Newfoundland

2Zoology Dept., University of Manitoba; 3School of Aquatic and Fisheries Sciences, University of Washington, Seattle, USA


2 major sources of oil pollution in newfoundland
2 MAJOR SOURCES OF OIL POLLUTION IN NEWFOUNDLAND

1 – Illegal, chronic discharges of oily waste waters from vessels at sea (eg tankers, cargo ships, fishing vessels, etc)

2 – Accidental spills and pollution from vessels, oil facilities and offshore platforms


Is offshore environmental monitoring adequate

Is offshore environmental monitoring adequate?

Anonymous

Are there significant effects on seabirds and mammals that are not being detected ?


Type ii error failure to detect an effect due to a weak or ineffective experimental design

Type II Error

Failure to detect an effect due to a weak or ineffective experimental design

(particular concern with negative environmental effects  Precautionary Approaches)


Objectives
Objectives

  • to present data from independent surveys that document

    • seasonal diversity, distribution, abundance of birds & mammals on support vessel routes & at offshore platforms

    • mortality & disturbance associated with oil and gas activities at offshore platforms

    • to use this information to mitigate & minimize mortality & disturbance






Unique oceanographic regime

Unique Oceanographic Regime

  • lowest penetration of Arctic water in the Atlantic


Regional Seabird Populations

52

N

51

Leach’s Storm-Petrel

50

Funk Island

49

Newfoundland

Northern Gannet

48

47

Cape St. Mary’s

46

-58

-56

-54

-52

-50

Longitude

Common Murre

Latitude

Baccalieu Island

Atlantic Puffin

Witless Bay

Black-legged Kittiwake

Manx Shearwater


Global seabird populations
Global Seabird Populations

Northern Migrants

  • Dovekies

  • Thick – billed Murres

  • Northern Fulmars

N America

Europe

Africa

Southern Migrants

S America

  • Sooty Shearwaters

  • Greater Shearwaters



Survey Design & Methodology

52

N

50

Funk Island

3000 m

Newfoundland

Newfoundland

Baccalieu

Latitude

200 m

48

Hibernia

Witless Bay

Cape St. Mary's

46

Terra Nova

-58

-56

-54

-52

-50

-48

Longitude


Results

10

8

6

birds/km

4

2

0

Feb

Apr

May

Jul

Aug

Sept

Oct

Nov

Seasonal Abundance of Marine Birds


Auks

Kittiwakes

Gulls

Petrels

Shearwaters

Fulmar

100

75

50

25

0

Winter

Spring

Summer

Fall

Seasonal Species Diversity

percent


Marine bird distribution

52

Mean birds/ 5km

N

1 to 1.9

2 to 9.9

50

Funk Island

10 to 60

Newfoundland

3000 m

200 m

48

Baccalieu

Witless Bay

Hibernia

Cape St. Mary's

46

FPSO

-58

-56

-54

-52

-50

-48

Marine Bird Distribution

Newfoundland

Latitude

Longitude


Marine mammal distribution and abundance

mean mammals/per 5 km

1 to 1.9

2 to 4.9

5 to 10

Marine Mammal Distribution and Abundance

N

54

52

50

Funk Island

Newfoundland

Newfoundland

Baccalieu

Latitude

48

Hibernia

Terra Nova

46

Cape St. Mary's

Humpback whale

44

-58

-56

-54

-52

-50

-48

Longitude



Attraction to offshore platforms
Attraction to Offshore Platforms

  • artificial reefs

    • prey concentrations

    • grey water fertilization

  • artificial lights and flares

  • roosting refuge




Summary

  • large seasonal shifts in animal diversity, distribution and abundance (changing risks and vulnerabilities)

  • offshore platforms create artificial reefs and concentrate fish, birds and mammals

  • oil is spilled at platforms and oils seabirds

  • mortality associated with flaring and collisions


Conclusions
CONCLUSIONS

There has never been an effective monitoring system to reliably document mortality, pollution

and disturbance associated with offshore

developments in eastern Canada

Despite recommendations of the independent report for the Canadian Association of Petroleum Producers (1999) that laid out protocols for such monitoring, there has never been an independent observer allowed on the Hibernia or Terra Nova platforms.

Why?


Addressing the Problem

  • reinstate discontinued independent monthly offshore support vessel surveys

  • develop protocols to document mortality and collect dead birds

  • legislate arms length dedicated observers on vessels and platforms as a condition of operation



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