The magic donkey likes my tube anemone #marineexplorer by John Turnbull
Flickr Explore is a daily showcase of what Flickr considers to be the most interesting pictures around the world. The decision is made by an algorithm jokingly called the “magic donkey”, based on activity such as views, comments etc. Today, the magic donkey chose my tube anemone pic. Clifton Gardens
Sharing a home – cuttlefish and pineapplefish #marineexplorer by John Turnbull
I wonder if two’s a crowd under this log at Clifton Gardens? The cuttlefish looks unimpressed.
Kelp broken off by fishing line #marineexplorer by John Turnbull
In the shallow subtidal environment, fishing line is the single largest source of marine debris (Smith 2014 Plos One). Fishing line is of course plastic, so stays in the environment for hundreds of years. Whilst there, it can entangle and damage marine life, like this kelp. Zoom in to see the entanglement in the holdfast. Clifton Gardens
Marine reserves need to be sanctuary in order to work #marineexplorer by John Turnbull
Marine reserves have a range of zoning rules, from sanctuary (no-take) to reserves that allow some fishing (partial protection). Do all of these work? Numerous studies, from regional to global, conclude that marine reserves have to be sanctuary zone to be effective. In most cases, partial protection is no better than no protection at all. Read this study for example rdcu.be/IuoS
Gymnothorax prasinus moray – watching from the cave #marineexplorer by John Turnbull
Ascidian mob #marineexplorer by John Turnbull
This shot from Henry Head in Botany Bay shows just how successful ascidians are.
Fish don’t care for Facebook #marineexplorer by John Turnbull
As people spend more and more time on social media, we run the risk of thinking that’s where reality lies. But fish don’t care for Facebook – they care for habitat and water to live in, finding food and a mate, and not being eaten. The human footprint on earth is now so large that we have to accept the role of stewards – whether we like it or not – and future generations will judge us by what we do in the real world.
Marine reserves build resilience to climate change #marineexplorer by John Turnbull
Climate change is regarded by many as the major environmental issue of our time. Oceans face a triple whammy of warming, acidification and rising sea levels. Tackling climate change will take global cooperation, but is there anything we can do at a local level? Research has shown that the increased biodiversity in marine reserves builds resilience to climate change, so our marine communities are better equipped to handle future climate pressures. Refs: Harley et al 2006 Ecol Letters, Bernhardt & Leslie 2012 Annu. Rev. Mar. Sci
Young weedy in kelp Phyllopteryx taeniolatus #marineexplorer by John Turnbull
Kelp beds are our underwater forests. They are home to many species, including the protected weedy seadragon. Kelp is known to be diminishing in many areas due to climate change and overfishing. www.pnas.org/content/early/2009/12/11/0907529106.short
Southern sea fan Sphaerokodisis australis #marineexplorer by John Turnbull
S. australis is in the family of bamboo corals. They are normally found in deep water – this pic was taken in around 18 m at Henry Head. Many species are slow growing and are important indicators of climate change. The delicate colonies are susceptible to damage from bottom trawling en.wikipedia.org/wiki/Bamboo_coral