Shorebirds of the Yellow Sea

Importance, threats and conservation status
Mark Barter
Wetlands International, 2002
ISBN 90 5882 009 2

5. Internationally important shorebird sites in the Yellow Sea

5.3 Site Accounts (continued)

5.3.20 Mangyeung Gang Hagu

Site information

Location: Chollabuk Province, South Korea; 35º 54' N, 126º 45' E.

Area: 12 000 ha

Wetland type: Intertidal flats and salt works.

Protected Area status: None.

Threats: Estuary currently being reclaimed, together with the adjacent Dongjin Gang Hagu, as part of the 40 100 ha Saemangeum Reclamation Project.

Count information

Counts have been conducted since 1993. Up to 1996, counts were carried out once or twice during both NM and SM; since 1997, count frequency has increased to twice during NM and three times during SM and the area covered has been extended (Yi & Kim in prep.).

Internationally important species counts for Mangyeung Gang Hagu
Northward migration
Count
Ref
Great Knot 59 000 1
Dunlin 47 650 1
Red-necked Stint 5 023 1
Grey Plover 4 155 1
Lesser Sand Plover 3 800 1
Bar-tailed Godwit 3 350 1
Kentish Plover 1 500 1
Eastern Curlew 625 1
Whimbrel 620 1
Ruddy Turnstone 400 1
     
Southward migration

 

 
Dunlin 22 000 1
Kentish Plover 11 000 1
Great Knot 8 021 1
Black-tailed Godwit 8 008 1
Grey Plover 4 700 1
Red-necked Stint 4 500 1
Lesser Sand Plover 4 100 1
Eastern Curlew 1 100 1
Terek Sandpiper 1 040 1
Broad-billed Sandpiper 700 1
Eurasian Curlew 530 1
Spoon-billed Sandpiper 180 1
Spotted Greenshank 52 1

Significance of site

Highest counts: NM 115 054; SM 53 178.

Supports:

  • 16 species in internationally important numbers (NM 10; SM 13);
  • >10% of the estimated flyway populations of Great Knot during NM and of Kentish Plover during SM;
  • >5% of the estimated flyway population of Lesser Sand Plover during both NM and SM;
  • >5% of the estimated flyway populations of Dunlin during NM and of Black-tailed Godwit during SM;
  • internationally important numbers of the endangered Spotted Greenshank (>5% of the estimated flyway population) during SM; also present during NM (maximum count: 2);
  • internationally important numbers of the vulnerable Spoon-billed Sandpiper during SM; also occurs during NM (maximum count: 20);
  • the highest recorded internationally important numbers of Black-tailed Godwit, Spotted Greenshank, Great Knot, Dunlin, Spoon-billed Sandpiper, Grey Plover and Kentish Plover in the Yellow Sea during SM.

Spec-ies count reference

  1. Yi & Kim in prep.

5.3.21 Tongjin Gang Hagu

Site information

Location: Chollabuk Province, South Korea; 35º 47' N, 126º 45' E.

Area: 12 000 ha

Wetland type: Intertidal flats.

Protected Area status: Small portion (810 ha) is an East Asian-Australasian Shorebird Network Site.

Threats: Estuary currently being reclaimed, together with the adjacent Mangyeung Gang Hagu, as part of the 40 100 ha Saemangeum Reclamation Project.

Count information

Counts have been conducted since 1993. Up to 1996, counts were carried out once or twice during both NM and SM; since 1997, count frequency has increased to twice during NM and three times during SM (Yi & Kim in prep.).

Internationally important species counts for Tongjin Gang Hagu
Northward migration
Count
Ref
Great Knot 60 000 1
Dunlin 38 850 1
Bar-tailed Godwit 8 430 1
Red-necked Stint 5 000 1
Lesser Sand Plover 3 857 1
Grey Plover 3 601 1
Terek Sandpiper 1 600 1
Whimbrel 1 070 1
Eastern Curlew 1 045 1
Ruddy Turnstone 450 1
     
Southward migration
 
 
Dunlin 20 004 1
Kentish Plover 8 850 1
Great Knot 5 200 1
Bar-tailed Godwit 4 845 1
Lesser Sand Plover 4 320 1
Black-tailed Godwit 2 750 1
Grey Plover 1 959 1
Common Greenshank 1 585 1
Terek Sandpiper 964 1
Broad-billed Sandpiper 800 1
Eurasian Curlew 775 1
Eastern Curlew 680 1
Spoon-billed Sandpiper 100 1
Spotted Greenshank 59 2

Significance of site

Highest counts: NM 126 145; SM 36 181.

Supports:

  • 17 species in internationally important numbers (NM 10; SM 14);
  • >10% of the estimated flyway population of Great Knot during NM;
  • >5% of the estimated flyway population of Lesser Sand Plover during both NM and SM;
  • >5% of the estimated flyway population of Kentish Plover during SM;
  • internationally important numbers of the vulnerable Spoon-billed Sandpiper during SM; also present during NM (maximum count: 3);
  • internationally important numbers of the endangered Spotted Greenshank (>5% of the estimated flyway population) during SM;
  • the highest recorded internationally important numbers of Terek Sandpiper, Great Knot and Lesser Sand Plover in the Yellow Sea during NM, and of Bar-tailed Godwit and Lesser Sand Plover during SM.

Species count reference

  1. Yi & Kim in prep.
  2. N. Moores in litt.

5.3.22 Paeksu Tidal Flat

Site information

Location: Chollabuk Province, South Korea; 35º 12' N, 126º 26' E.

Area: 1 500 ha

Wetland type: Intertidal mudflats

Protected Area status: None.

Threats: Small scale reclamation (Moores 1999b).

Count information

Counts were conducted in May and October 1994 (Yi & Kim in prep.).

Internationally important species counts for Paeksu Tidal Flat
Southward migration
Count
Ref
Kentish Plover 1 020 1

Significance of site

Highest counts: NM 1 511; SM 2 060.

Supports:

  • 1 species in internationally important numbers during SM;
  • the endangered Spotted Greenshank during SM (maximum count: 5).

Species count reference

  1. Yi & Kim in prep.