St Helens Pelagic 14-16 July 2007

Website produced by Simon Mustoe, AES Applied Ecology Solutions Pty. Ltd. 

Cruise map. Track lines are shown in orange; berley stops as yellow dots [click to enlarge]. 

Surface map of bathymetry [click to enlarge]

 

Map from the CSIRO Marine website showing the Sea Surface Temperature [click to enlarge]

Highlights: White-headed Petrel, white morph Southern Giant Petrel, 500+ Grey-backed Storm Petrels, adult Salvin's Albatross, Northern Royal Albatross and good numbers of Southern Royal Albatross. Breaching sub-adult Humpback Whale. 
Observers: Simon Mustoe, David Donnelly, Nathan Waugh, Brian Johnston, Mike Carter, Bill Moorhead, Jack Moorhead, Peter Marsh, Inka Veltheim, Peter Lansley, Karen Blake, Stuart Pell, Jennifer Spry. Thankyou to Gerald and Paul of the Norseman III for their hospitality and for enduring us. 
NOTES

Departed St Helens harbour on Saturday 14 July at about 10:30 on the Norseman III. Observers came via the Spirit of Tasmania and flights into Hobart and Launceston, some arriving that morning. Weather was initially poor with 2-2.5m seas, a 1-2m swell and a 25-30 knot easterly wind that eased slightly during the afternoon. Despite this, the shelf break was reached and seamount for two berley stops, attracting Southern Royal Albatross and a couple of Northern Royal Albatross. A large number of Buller's Albatross and adult Northern Giant Petrels were also observed but conspicuously absent in such numbers on other days. We arrived back in St Helens by about 16:30 that evening. 

The second day (15th July) we embarked at 07:30 in slightly better conditions: a 1m swell and about 1.5m sea and a southerly wind of about 15 knots. A good number of Southern Royal Albatross were seen, as well as Northern Royal Albatross and three exulans Wandering Albatross. Surprisingly, no Great-winged Petrels were observed this day. Throughout , mostly adult albatrosses were seen. The highlight of the day was an adult Salvin's Albatross, found by Jack Moorhead and a new bird for him! At a berley stop on the way back in, two Brown Skuas attended. 

The final day began at 07:30 with relatively calm weater but a fresh northwesterly wind increased ahead of a front which struck just after lunch, forcing us back inshore by about 13:30. Nevertheless, almost three hours was spent at the shelf. Highlights included brief views of a White-headed Petrel, a white morph Southern Giant Petrel and very large numbers (500+) of Grey-backed Storm Petrels. At least a couple of New Zealand race gouldi Great-winged Petrels were observed

On the way out in the morning of the 14th, a small (presumably subadult) humpback whale was seen repeatedly breaching but could not be observed well, owing to the relatively poor sea conditions. Several individual seals were seen during the trip, well out to sea, including a very large male fur seal. 

Oceanographic conditions over the weekend were dominated by a southerly current and unseasonally warm water temperatures of about 16 degrees celsius. 

 

 

 

 

BIRD LIST
Species         \\          Date 14/07/2007 15/07/2007 16/07/2007
Offshore
Little Penguin 15 - -
Common Diving-Petrel 2 4 13
Southern Giant-Petrel (*incl white morph) 1 2 1*
Northern Giant-Petrel 5 1 2
Cape Petrel (mostly capense, some australe) 50 100 120
Great-winged Petrel (mostly macroptera; *two gouldi) 5 - 22*
White-headed Petrel - - 1
Fairy Prion 30 30 58
Sooty Shearwater 1 4 1
Wandering Albatross (exulans) 2 3 2
Southern Royal Albatross  20 17 5
Northern Royal Albatross 2 2 2
Black-browed Albatross (melanophrys) 6 9 10
Buller's Albatross 30 10 12
Tasmanian Shy Albatross (cauta) 25 30 30
White-capped Albatross (steadi) c5 c5 c5
Salvin's Albatross - all adults - 2 1
Indian Yellow-nosed Albatross 16 7 2
Grey-backed Storm-Petrel 10 26 500
Australasian Gannet 10 10 5
Brown Skua 1 2 -
Crested Tern 5 11 9
White-fronted Tern - 1 -
Crested Tern 5 11 9
Inside St Helens Bay (maximum counts)
Black-faced Cormorant 15
Little Black Cormorant 12
Little Pied Cormorant 30
Great Cormorant 15
Australian Pelican 32
Pacific Gull 3
Crested Tern 2
Silver Gull 50
 

White Morph Southern Giant Petrel, Simon Mustoe [Click to enlarge] 

 

Southern Royal Albatross, Simon Mustoe [Click to enlarge] 

 

Shy Albatross and Black-browed Albatross, Simon Mustoe [Click to enlarge] 

 

Buller's Albatross, Simon Mustoe [Click to enlarge] 

 

Salvin's Albatross, Simon Mustoe [Click to enlarge] 

 

Grey-backed Storm Petrel, Simon Mustoe [Click to enlarge] 

WHALE AND DOLPHIN POSITION DATA
Latitude Longitude Species Number Date
-41.2423 148.4518 Humpback Whale 1 14/07/2007