NSW Arbovirus Surveillance & Vector Monitoring Program
Port Stephens 2004-2005
Mosquito/Virus Results

Nearby Locations

Wyong Gosford Ballina

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News & Comments

Note that for mosquito numbers 0 - 50 mosquitoes = "Low", 51 - 100 = "Medium",
101 - 1,000 = "High", 1,001 - 10,000 = "Very High", >10,000 = "Extreme".

1/Jun/2005: Gan Gan, Medowie and Karuah trapped 'low' mosquito numbers. Saltash yielded a 'medium' collection of 53 mosquitoes, including 22 Culex australicus. Heatherbrae had a 'high' collection of 153, with 70 Culex australicus.

24/May/2005: Mosquito numbers are well down this week. Gan Gan and Karuah trapped 'low' numbers. Saltash yielded 'medium' mosquito numbers (66), with 38 Ochlerotatus multiplex. Medowie had a 'medium' collection of 58 mosquitoes, with 35 Ochlerotatus multiplex. Heatherbrae trapped 'high' numbers (108), with 35 Ochlerotatus multiplex.

10/May/2005: Gan Gan again trapped 'low' mosquito numbers. Saltash yielded a 'medium' collection of 65, dominated by 42 Ochlerotatus multiplex. Medowie also collected 'medium' numbers (90), with 56 Ochlerotatus multiplex. Karuah trapped 'low' numbers. Heatherbrae had a partial trap failure.

3/May/2005: Numbers were 'low' this week from Gan Gan. Saltash continued with the 'high' collections (118), which included 42 Ochlerotatus multiplex. Karuah collected 'high' numbers (132), with 39 Ochlerotatus procax. Heatherbrae continues with the 'very high' collections, trapping 1,027 mosquitoes, including 409 Ochlerotatus multiplex.

19/Apr/2005: Gan Gan trapped 'medium' numbers (64), with 14 Ochlerotatus procax. Saltash yielded a 'very high' collection of 1,058, including 387 Ochlerotatus procax. Medowie had a 'high' collection of 219, with 116 Culex annulirostris. Karuah also had 'high' (521) trap numbers, with 339 Ochlerotatus vigilax. Heatherbrae yielded a 'very high' collection of 4,325, which included 1,425 Ochlerotatus procax.

12/Apr/2005: Mosquito numbers continue to be well up. Gan Gan had a 'medium' colletion of 94 mosquitoes, with 45 Ochlerotatus procax. Saltash yielded a 'high' collection of 875, with 351 Ochlerotatus procax. Medowie also collected 'high' numbers (450), including 170 Culex annulirostris. Karuah again produced a 'high' collection of 462, with 255 Ochlerotatus vigilax. Heatherbrae trapped 'very high' numbers with a massive collection of 6,612 mosquitoes, which included 3,245 Ochlerotatus procax and 1,705 Culex annulirostris.

13/Apr/2005: There were three isolates of Ross River virus made from the collection trapped 5/Apr/2005. All from Karuah, with one isolate each from Culex molestus, Ochlerotatus multiplex and Ochlerotatus vigilax

5/Apr/2005: Mosquito numbers are well up from several sites. Heatherbrae had a 'very high' collection of 4543 mosquitoes, dominated by 2034 Culex annulirostris. Saltash trapped 'high' numbers (336), with 117 Culex annulirostris. Karuah yielded 'high' numbers (510), with 370 Ochlerotatus vigilax. Medowie produced a 'high' collection of 119, with 52 Culex annulirostris. Gan Gan had 'low' numbers.

30/Mar/2005: There were another four isolates of Ross River virus made from the collection trapped 22/Mar/2005. One isolates was from Heatherbrae, two from Karuah and one from Salt Ash. All were from pools of Ochlerotatus vigilax

22/Mar/2005: There were four isolates of Ross River virus made from the collection trapped 8/Mar/2005. Three isolates were from Heatherbrae, all from pools of Ochlerotatus procax, the other was from Karuah, from a pool of Ochlerotatus vigilax

22/Mar/2005: Mosquito numbers were 'high' or greater from most sites. Gan Gan collected 139 mosquitoes, with 66 Coquillettidia linealis. Saltash yielded 'medium' numbers (85), with 29 Ochlerotatus vigilax. Medowie collected 'medium' numbers (93), with 43 Culex annulirostris. Karuah trapped 531, with 391 Ochlerotatus vigilax. Heatherbrae again had 'very high' numbers (1,784), with 768 Culex annulirostris

15/Mar/2005: Gan Gan collected 'high' numbers (134), with 85 Coquillettidia linealis. Saltash yielded a 'high' collection of 200 mosquitoes, including 113 Ochlerotatus vigilax. Medowie collected 'low' numbers. Karuah produced a 'high' yield (288), with 260 Ochlerotatus vigilax. Heatherbrae continous with the 'very high' numbers (1,752), with 501 Culex annulirostris

8/Mar/2005: Mosquito numbers were 'high' or greater from all sites. Gan Gan collected 136 mosquitoes, with Coquilletidia variegata. Saltash yielded 122, with 48 Ochlerotatus vigilax. Medowie collected 133, with 79 Culex annulirostris. Karuah trapped 334, with 260 Ochlerotatus vigilax. Heatherbrae again had 'very high' numbers (2,515), with 1,078 Ochlerotatus vigilax

1/Mar/2005: Mosquito numbers varied substantially between sites, but were overall well up. Gan Gan trapped 'high' numbers (117), with 31Coquilletidia variegata. Saltash yielded 'high' numbers (150), with 112 Ochlerotatus vigilax. Medowie had a 'low' collection. Karuah had a 'high' catch of 912 mosquitoes, dominated by 781 Ochlerotatus vigilax. Heatherbrae again had 'very high' numbers (2,352), with 1,192 Ochlerotatus vigilax

23/Feb/2005: Mosquito numbers were well up this week and 'high' or greater at all sites, due to large increase in Ochlerotatus vigilax densities. Gan Gan trapped 246 mosquitoes, with 82 Ochlerotatus vigilax. Saltash yielded 437, including 345 Ochlerotatus vigilax. Medowie produced a collection of 334 mosquitoes, strongly dominated by 310 Ochlerotatus vigilax. Karuah had a catch of 652, with 552 Ochlerotatus vigilax. Heatherbrae had another 'very high' collection of 2,747, with 1602 Ochlerotatus vigilax

15/Feb/2005: Mosquito numbers were 'high' from most sites. Gan Gan collected a total of 150, with 75 Coquillettidia linealis. Saltash yielded a 'medium' collection of 56, dominated by 33 Ochlerotatus vigilax. Medowie trapped 'low' numbers. Karuah collected 132 mosquitoes, with 101 Ochlerotatus vigilax. Heatherbrae collected 937 mosquitoes, including 255 Ochlerotatus vigilax.  

8/Feb/2005: Gan Gan had a trap failure. Saltash trapped 'high' numbers (132), with 105 Ochlerotatus vigilax. Medowie yeilded a 'medium' collection (71), with 34 Ochlerotatus vigilax. Karuah trapped 'high' numbers (264), with 240 Ochlerotatus vigilax. Heatherbrae collected 'very high' numbers (1649), with 592 Coquillettidia linealis.

1/Feb/2005: Lower mosquito numbers were trapped this week. Gan Gan had a 'high' collection of 158, with 70 Coquillettidia linealis. Saltash yielded 'medium' numbers (74), dominated by 63 Ochlerotatus vigilax. Saltash trapped 'high' numbes (448), including 425 Ochlerotatus vigilax. Heatherbrae had a 'high' collection of 905, dominated by 542 Ochlerotatus vigilax. Medowie trapped 'low' numbers.

25/Jan/2005: Mosquito numbers were well up this week, with a 'very high' collection of 3,140 mosquitoes from Heatherbrae, strongly dominated by 2,675 Ochlerotatus vigilax. Karuah also yielded 'very high' numbers (1,127), again dominated by Ochlerotatus vigilax (1087). Medowie had a 'high' collection of 784, with 757 Ochlerotatus vigilax. Saltash also yielded 'high' numbers (151), including 142 Ochlerotatus vigilax. Gan Gan produced 'high' numbers (114), with 33 Ochlerotatus vigilax.

19/Jan/2005: Mosquito numbers were overall, slightly below average this week. Gan Gan yielded a 'high' collection (163), including 50 Coquilletidia variegata. Karuah trapped 'high' numbers (302), dominated by 274 Ochlerotatus vigilax. Heatherbrae had a 'high' collection of 331, with 116 Ochlerotatus vigilax. Saltash and Medowie trapped 'low' numbers. 

11/Jan/2005: Gan Gan yielded 'high' numbers (143), including 64 Coquillettidia linealis. Karuah had a 'high' collection (168), with 91 Ochlerotatus vigilax. Heatherbrae trapped 'high' numbers (553), with 192 Ochlerotatus vigilax. Medowie had a 'low' collection. Saltash had a trap failure.

21/Dec/2004: Gan Gan trapped 'medium' numbers (77), with 26 Coquillettidia linealis. Saltash yielded a 'high' collection of 156, including 56 Coquillettidia linealis. Medowie had a 'low' collection. Karuah had 'high' mosquito numbers (352) and as usual, dominated strongly by Ochlerotatus vigilax (276).  Heatherbrae also had 'high' numbers (510), collecting large numbers of Coquillettidia linealis (183).

7/Dec/2004: Collections varied between sites for the first trapping week of the season. Gan Gan collected 'medium' (67) mosquito numbers, with 32 Coquillettidia linealis. Saltash also yielded a 'medium' (84) collection, with 19 Ochlerotatus vigilax. Medowie trapped 'low' numbers. Karuah collected 'high' (378) mosquito densities, with Ochlerotatus vigilax (285) dominating the collection. Heatherbrae had a 'high' collection of 629 mosquitoes, including 189 Ochlerotatus vigilax.

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