Eastern Bight South Australia

@  Email
Bryozoan Bugula serrata (@centre of img) Inv.Gp, Eastern Bight SA
Bryozoan Bugula serrata (@centre of img) Inv.Gp, Eastern Bight SA
Repin Comment
Macro life in Investigator Group, Eastern Bight SA (slide img May 2006 )dsm i4427
Macro life in Investigator Group, Eastern Bight SA (slide img May 2006 )dsm i4427

Repin Comment
Sea Squirt (very big)@27m dpth,’Hotspot’, Investigator Group,Eastern Bight,SA;April 1990.
The term ‘Hotspot’ in this case is derived from the area’s prolific population of large greenlip abalone,and arose in local abalone divers’ parlance sometime within the last few decades of the 20th century.I gather it’s discovery coincided with a relatively brief phase (NB:here it is worth noting that subsequently,and in stark contrast  to most of the planet’s other major abalone fisheries whose stocks collapsed catastrophically from over-extraction,SA’s commercial wildcatch abalone fishery has been and remains very well legislated and managed,with a strong and appropriately evidence based focus on sustainability such as by limits on numbers of licences per region,minimum legal size limits and maximum tonnage/ licencee/year) in which ab divers found that to remain viable they had little option but to dive to greater depths and to venture further offshore,even to this remote site which is nearer the continental shelf’s edge than it is the mainland.’Hotspot’ is an extensive,fully submerged area of offshore benthic habitat still much favoured by the region’s few licenced professional greenlip abalone divers Bottom depths are commonly in the 27-35m range.Low to moderate relief temperate rocky reef is the major bottom type,interspersed with smaller patches of sand,rubble and seagrasses.(Img taken w 2+1/4 Rolleimarin rig!)
Sea Squirt (very big)@27m dpth,’Hotspot’, Investigator Group,Eastern Bight,SA;April 1990. The term ‘Hotspot’ in this case is derived from the area’s prolific population of large greenlip abalone,and arose in local abalon ...

Repin Comment
Another typical benthic mix, Inv.Gp., SA (May2006)
Another typical benthic mix, Inv.Gp., SA (May2006)
Repin Comment
Coral (Scolymia australis) with mixed benthic life, Inv.Gp, Eastern Bight SA (May 2006)
Coral (Scolymia australis) with mixed benthic life, Inv.Gp, Eastern Bight SA (May 2006)
Repin Comment
Bryozoan Adeona grisea with mixed benthic life Inv Gp SA (old scan)
Bryozoan Adeona grisea with mixed benthic life Inv Gp SA (old scan)
Repin Comment
Orthoscuticella ventricosa Bryozoan, Inv. Gp SA (common sp. in SA) May 2006
Orthoscuticella ventricosa Bryozoan, Inv. Gp SA (common sp. in SA) May 2006
Repin Comment
Bryozoan (a ‘lacy’form) Hornera robusta ,Inv. Gp. ,Eastern Bight SA May06
Bryozoan (a ‘lacy’form) Hornera robusta ,Inv. Gp. ,Eastern Bight SA May06
Repin Comment
Apjohnia laetevirens green alga (new growth,small) against mixed reds (+main brown= Ecklonia radiata) Inv. Gp., SA May 2006
Apjohnia laetevirens green alga (new growth,small) against mixed reds (+main brown= Ecklonia radiata) Inv. Gp., SA May 2006
Repin Comment
Ascidian colony in Investigator Group, SA’s Eastern Bight, May 2006
Ascidian colony in Investigator Group, SA’s Eastern Bight, May 2006
Repin Comment
Dense macro invertebrate and diminutive red algal mix, Inv. Gp, SA May 2006
Dense macro invertebrate and diminutive red algal mix, Inv. Gp, SA May 2006
Repin Comment
Caulerpa scalpelliformis, Inv. Gp SA in May 2006
Caulerpa scalpelliformis, Inv. Gp SA in May 2006
Repin Comment
Bryozoan (Hornera foliacea) Inv. Gp., SA May 2006
Bryozoan (Hornera foliacea) Inv. Gp., SA May 2006
Repin Comment
Red on red-algal macro, Inv. Gp SA May 2006
Red on red-algal macro, Inv. Gp SA May 2006
Repin Comment

Top