NSW Arbovirus Surveillance & Vector Monitoring Program
Port Stephens 2002-2003
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".

15/4/2003: Saltash yielded 'medium' numbers (104), with 26 Culex annulirostris. Karuah had a 'medium' collection of 80 mosquitoes, with 30 Ochlerotatus vigilax. Heatherbae also yielded 'medium' numbers (54), with 30 Ochlerotatus vigilax. Gan Gan and Medowie trapped 'low' numbers.

8/4/2003: Overall numbers are around average. Gan Gan trapped 'medium' numbers (60), with 18 Coquillettidia variegata. Saltash also collected 'medium' numbers (70), with 36 Culex annulirostris. Medowie trapped 'low' numbers. Karuah yielded a 'high' collection of 109 mosquitoes, dominated by 75 Ochlerotatus vigilax. Heatherbrae also had 'high' numbers (515), with 262 Ochlerotatus vigilax.

1/4/2003: Numbers are above average and 'high' from most sites. Gan Gan trapped 156 mosquitoes, with 31 Coquillettidia linealis. Saltash yielded 197, dominated by 131 Ochlerotatus vigilax. Medowie collected 'low' numbers. Karuah trapped 134, with 100 Ochlerotatus vigilax. Heatherbrae yielded a 'very high' collection of 1067, with 581 Ochlerotatus vigilax.

27/3/2003: Numbers were down this week and around average. Gan Gan trapped 'high' numbers (133), with 37 Coquillettidia linealis. Saltash yielded a 'high' catch of 159 mosquitoes, with 56 Ochlerotatus vigilax. Medowie collected 'low' numbers. Karuah trapped 'high' numbers (125), dominated by 100 Ochlerotatus vigilax. Heatherbrae yielded a 'high' collection of 623, with 367 Ochlerotatus vigilax.

20/3/2003: Numbers are well up this week, with 'high' numbers or greater from all sites. Gan Gan collected 603 mosquitoes, with 281 Ochlerotatus vigilax. Saltash yielded 646, dominated by 131 Ochlerotatus vigilax. Medowie collected 165, with 136 Ochlerotatus vigilax. Karuah trapped 451, with 376 Ochlerotatus vigilax. Heatherbrae trapped 'very high' numbers (3521), with 2111 Ochlerotatus vigilax.

4/3/2003: Mosquito numbers were well up this week and 'high' in number or greater from all sites, due to hatching of Ochlerotatus vigilax in response to the recent rain and high tide. Gan Gan trapped 328 mosquitoes, with 241 Ochlerotatus vigilax. Saltash yielded 369, including 343 Ochlerotatus vigilax. Medowie collected 318, with 307 Ochlerotatus vigilax. Karuah trapped 512 mosquitoes, including 498 Ochlerotatus vigilax. Heatherbrae trapped 'very high' numbers of 2739, dominated by 2215 Ochlerotatus vigilax.

25/2/2003: Numbers were again down this week. Gan Gan had a 'medium' collection (96), including 58 Coquillettidia linealis. Saltash and Medowie both had trap failures. Karuah collected 'high' numbers (238), with 233 Ochlerotatus vigilax. Heatherbrae yielded a 'high' collection of 711 mosquitoes, with 275 Ochlerotatus vigilax and 316 Coquillettidia linealis.

18/2/2003: Numbers from most sites were down this week. Gan Gan had a 'medium' collection (82), including 41 Coquillettidia linealis. Saltash also yielded 'medium' numbers (89), with 75 Ochlerotatus vigilax. Medowie trapped 'medium' numbers (92), with 44 Ochlerotatus vigilax. Karuah collected 'high' numbers (311), with 295 Ochlerotatus vigilax. Heatherbrae yielded 'very high' numbers of 2328, dominated by 1828 Ochlerotatus vigilax.

11/2/2003: Gan Gan had a 'high' collection (264), including 108 Ochlerotatus vigilax and 133 Coquillettidia linealis. Saltash also yielded 'high' numbers (257), with 226 Ochlerotatus vigilax. Medowie trapped 'high' numbers (168), with 103 Ochlerotatus vigilax. Karuah collected 'high' numbers (543), with 526 Ochlerotatus vigilax. Heatherbrae yielded the highest collection of the season, with 'very high' numbers of 4454, dominated by 3914 Ochlerotatus vigilax.

4/2/2003: Overall numbers were down this week. Gan Gan had a 'high' collection (214), including 51 Coquillettidia linealis. Saltash also yielded 'high' numbres (164), with 133 Ochlerotatus vigilax. Medowie had a nil catch. Karuah collected 'high' numbers (497), with 455 Ochlerotatus vigilax. Heatherbrae yielded a 'high' collection of 283 mosquitoes, with 261 Ochlerotatus vigilax.

29/1/2003: Collections were 'high' from most sites. Gan Gan collected 112 mosquitoes, including 60 Coquillettidia linealis. Saltash trapped 106, with 71 Ochlerotatus vigilax. Medowie had a trap failure. Karuah yielded 407 mosquitoes, including 371 Ochlerotatus vigilax. Heatherbrae yielded a 'very high' collection of 2912, dominated by 2400 Ochlerotatus vigilax.

21/1/2003: Numbers continue to climb up, especially from Heatherbrae. Gan Gan had a trap failure. Saltash  yielded 'high' numbres (153), with 134 Ochlerotatus vigilax. Medowie had a 'high' catch (165), with 104 Ochlerotatus vigilax. Karuah collected 'high' numbers (535), with 387 Ochlerotatus vigilax. Heatherbrae had another 'very high' collection with a total of 3476 mosquitoes, dominated by 2821 Ochlerotatus vigilax.

14/1/2003: Numbers are well up, especially from Heatherbrae. Gan Gan had a 'high' collection (430), including 151 Coquillettidia linealis. Saltash also yielded 'high' numbres (168), with 124 Ochlerotatus vigilax. Medowie had a nil catch. Karuah collected 'high' numbers (690), with 639 Ochlerotatus vigilax. Heatherbrae had the first 'very high' collection of the season with a total of 4166 mosquitoes, dominated by 3775 Ochlerotatus vigilax.

7/1/2003: Overall numbers are around average, but variable between sites. Gan Gan trapped 'high' numbers (321), with 210 Coquillettidia linealis. Saltash and Medowie both trapped 'low' numbers. Karuah collected 'high' numbers (630), with 597 Ochlerotatus vigilax. Heatherbrae also had a 'high' collection (333), inlcuding 265 Ochlerotatus vigilax.

17/12/2002: Mosquito numbers were again around average this week. Gan Gan trapped 'high' numbers (279), with 158 Ochlerotatus vigilax. Saltash also yielded 'high' numbers (245), with 141 Ochlerotatus vigilax. 'High' numbers (148) were collected at Medowie, with 79 Ochlerotatus vigilax. Karuah trapped 'low' numbers. Heatherbrae had a trap failure.

10/12/2002: Mosquito numbers were around average this week. Gan Gan trapped 'high' numbers (201), with 122 Coquillettidia linealis. Saltash also yielded 'high' numbers (133), with 121 Ochlerotatus vigilax. 'High' numbers (130) were collected at Medowie, with 123 Coquillettidia linealis. Karuah had the highest numbers this week (538), with 516 Ochlerotatus vigilax. Heatherbrae had a partial trap failure, with only 18 mosquitoes.

26/11/2002: Mosquito collections were up this week and above average. Gan Gan trapped 'high' numbers (220), with 165 Coquillettidia linealis. Saltash also yielded 'high' numbers (143), with 104 Ochlerotatus vigilax. 'High' numbers (195) were collected at Medowie, with 158 Coquillettidia linealis. Karuah yielded a 'medium' collection of 97 mosquitoes, including 80 Ochlerotatus vigilax. Heatherbrae had the largest collection this week with a 'high' yield of 675, including 332 Ochlerotatus vigilax and 315 Coquillettidia linealis.

19/11/2002: Overall collections from the first week of trapping for the season were slightly below average, with Coquillettidia linealis being the most common species captured. Gan Gan trapped 'high' numbers (336), dominated by 218 Coquillettidia linealis. Saltash yielded a 'medium' (77) mosquito collection, with 43 Ochlerotatus vigilax. Medowie also had 'medium' numbers (61), with 42 Coquillettidia linealis. Karuah trapped 'high' numbers (220), with 100 Ochlerotatus vigilax. Heatherbrae yielded a 'high' collection of 292 mosquitoes, with 193 Coquillettidia linealis.

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