Category: underwater

King of the Castle – Red cuttle Sepia mestus …

King of the Castle - Red cuttle Sepia mestus #marineexplorer

King of the Castle – Red cuttle Sepia mestus #marineexplorer by John Turnbull

Via Flickr:

Henry Head

Back in black – Oysters at Shiprock #marineex…

Back in black - Oysters at Shiprock #marineexplorer

Back in black – Oysters at Shiprock #marineexplorer by John Turnbull

Via Flickr:

My first photos were black and white. I remember the happy days of Ilford film and my darkroom, made from our converted laundry. Watching the picture emerge in the development tray. Back then, exposure and contrast were adjusted in the enlargement process, using timers and paper types. Today it’s much easier – so perhaps we forget the mystique of a B&W image. It adds a level of abstraction that makes you focus on the tones and patterns more than the subject.

Fish to invertebrate ratio #marineexplorer by…

Fish to invertebrate ratio #marineexplorer

Fish to invertebrate ratio #marineexplorer by John Turnbull

Via Flickr:

Whilst some ecologists dispute the idea of the balance of nature, I observe what I regard as “out of balance” communities on most dives. This shot, from a popular fished area, has hundreds of invertebrates for every fish… and even the one fish is tiny. Henry Head.

Sponges #marineexplorer by John Turnbull Vi…

Sponges #marineexplorer

Sponges #marineexplorer by John Turnbull

Via Flickr:

Henry Head. 18 m deep.

Nature’s natural vacuum cleaners – Oyst…

Nature's natural vacuum cleaners - Oyster layer #marineexplorer

Nature’s natural vacuum cleaners – Oyster layer #marineexplorer by John Turnbull

Via Flickr:

Oysters feed by filtering the sea water. They were once so abundant that they would have contributed substantially to keeping our waters clean. Today, there are still some healthy patches, like these at Shiprock. Overharvesting, pollution and seawalls continue to threaten oysters, although they are being restored to some areas www.wrl.unsw.edu.au/research/oyster-reef-restoration-project

Chiton – Flexible coat of armour #marineexplo…

Chiton - Flexible coat of armour #marineexplorer

Chiton – Flexible coat of armour #marineexplorer by John Turnbull

Via Flickr:

Chitons are molluscs with a flexible coat of armour comprising eight plates. They are normally small and hide in cracks, like this one at Oak Park, although the biggest in the world is over 1 ft long

Carijoa soft coral under overhang #marineexpl…

Carijoa soft coral under overhang #marineexplorer

Carijoa soft coral under overhang #marineexplorer by John Turnbull

Via Flickr:

Carijoa is a very successful soft coral, as you see here on the wall at Shiprock. The symbiosis between the white polyps and the orange encrusting sponge on the stalk is obviously a winner

Shoal Suspended in Midwater #marineexplorer b…

Shoal Suspended in Midwater #marineexplorer

Shoal Suspended in Midwater #marineexplorer by John Turnbull

Via Flickr:

Ok, can anyone see the fine threads holding these fish up there? Must be something else going on. Shelly beach, Manly.
BTW why is it a shoal not a school? Because they are just hanging there in a social group, not swimming together in one direction.

Breeding time – Heterodontus portusjacksoni -…

Breeding time - Heterodontus portusjacksoni - Port Jackson shark

Breeding time – Heterodontus portusjacksoni – Port Jackson shark by John Turnbull

Via Flickr:

Plenty of PJs around Sydney at the moment… Shelly beach, Manly

Concentration – Trygonorrhina fasciata Fiddle…

Concentration - Trygonorrhina fasciata Fiddler ray #marineexplorer

Concentration – Trygonorrhina fasciata Fiddler ray #marineexplorer by John Turnbull

Via Flickr:

This ray was concentrating so hard on finding its next mouthful of invertebrate in the sand that it let me get pretty close. Shelly beach, Manly