Category: marineexplorer

Featureless seawall #marineexplorer by John T…

Featureless seawall #marineexplorer

Featureless seawall #marineexplorer by John Turnbull

Via Flickr:

The replacement of complex natural shorelines with armoured, vertical, featureless seawalls like this one has big implications for the intertidal communities that can live here. Whilst such structures are less expensive, they provide little opportunity for marine organisms to settle and grow, and do little to dissipate the energy of waves and floods. Darling Harbour, Sydney.

Sea hare eating lettuce – seems appropriate #…

Sea hare eating lettuce - seems appropriate #marineexplorer

Sea hare eating lettuce – seems appropriate #marineexplorer by John Turnbull

Via Flickr:

Narrabeen

Opening up the ICOLL #marineexplorer by John …

Opening up the ICOLL #marineexplorer

Opening up the ICOLL #marineexplorer by John Turnbull

Via Flickr:

ICOLLs (Intermittently Closed and Open Lagoons and Lakes) are a feature of Australia’s coastline. They open up when rainfall is sufficient to scour the entrance, converting from a closed brackish lagoon to a salt water estuary. In times of drought, like now, they are often closed, unless local councils open them up with diggers like this one at Narrabeen

Bembicium auratum – Dark mouth conniwink by J…

Bembicium auratum - Dark mouth conniwink

Bembicium auratum – Dark mouth conniwink by John Turnbull

Via Flickr:

B. auratum is an Australian endemic that lives in the intertidal zone. The sexes are separate, with spawning occurring in winter and spring. These two aren’t shy – they have climbed to a nice high vantage point on the root of a mangrove on the Lane Cove River

Posidonia australis – threatened populations …

Posidonia australis - threatened populations #marineexplorer

Posidonia australis – threatened populations #marineexplorer
Strapweed is a thick-leaved seagrass endemic to southern Australia. Populations in Sydney and Lake Macquarie have suffered large declines, and are listed as threatened. www.dpi.nsw.gov.au/fishing/species-protection/what-curren…

Fly #marineexplorer by John Turnbull Via Fl…

Fly #marineexplorer

Fly #marineexplorer by John Turnbull

Via Flickr:

Hmmm I forgot how much easier it was to take pics without current, depth, poor light, bubbles and backscatter 🙂

Southern sea fan polyps Sphaerokodisis austra…

Southern sea fan polyps Sphaerokodisis australis #marineexplorer

Southern sea fan polyps Sphaerokodisis australis #marineexplorer by John Turnbull

Via Flickr:

The white, polyp-free tips are a characteristic of this native Australian deep water soft coral. Polyps can be yellow or pink. Bare Island

My well-used underwater camera #marineexplore…

My well-used underwater camera #marineexplorer

My well-used underwater camera #marineexplorer by John Turnbull

Via Flickr:

RX-100 in Nauticam housing with twin Sea & Sea strobes and iTorch video light

Zoanthid – toxic cocktail franks #marineexplo…

Zoanthid - toxic cocktail franks #marineexplorer

Zoanthid – toxic cocktail franks #marineexplorer by John Turnbull

Via Flickr:

Zoanthids are related to corals and anemones. The animals are closed up in this daytime shot, although there is a hint of their stinging tentacles visible in some of them. Zoanthids contain highly toxic palytoxin, so contact with them should be avoided. Kurnell.

Red sea fan – nice size colony at 20 m #marin…

Red sea fan - nice size colony at 20 m #marineexplorer

Red sea fan – nice size colony at 20 m #marineexplorer by John Turnbull

Via Flickr:

Kurnell