Viewing: Bony fishes

Mar 23

March 23, 2017

The Oyster Blenny, Omobranchus anolius

When I recently snorkelled at the Ship’s Graveyard in the North Arm of the Port River, I saw lots of blennies disappearing into holes on the river bed. They were much too quick for me to be able to identify them at all. Some of them seemed to have long-flowing eel-like tails. I struck it lucky when I returned back to shore and a blenny posed on a rock for me. I was quite surprised by the colour, shape and…

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Feb 23

February 23, 2017

ID of pipefish found at Sellicks Beach

We recently received a request via Facebook from Robbert Alexander‎ to identify a pipefish species that he found on Sellicks Beach. Robbert sent us a photo of the pipefish and we told him that it was “Most likely Stigmatopora argus, the spotted pipefish”. We also gave him a link to the relevant web page for the Australian Museum ( https://australianmuseum.net.au/spotted-pipefish-stigmatopora-argus ).   Robbert agreed with our ID of the pipefish and then sent us several more photos of it. He…

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Feb 3

February 3, 2017

Swimming with Surf Sardines at Myponga Beach

by David Muirhead I snorkelled at Myponga Beach’s south-western rock channels again this morning (29th Jan 2017) with my daughter who expressed interest in accompanying me because she’s never been in the water there. (No suits, just bathers, booties, fins, hood, mask, snorkel, SPF30+ and Sea Life camera.) The water was clear for a change (it’s been a wet, wild warm season). Bit surgier than same time yesterday morning (tide still well in but ebbing both days, with entries around 1030 a.m.) Today’s…

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Jun 12

June 12, 2016

The naming of the Bluefin Leatherjacket, Thamnaconus degeni

David Muirhead took this photo of a male Bluefin Leatherjacket, Thamnaconus degeni, at the Noarlunga Tyre Reef: – Photo of a male Bluefin Leatherjacket, Thamnaconus degeni (Taken by David Muirhead at the Noarlunga Tyre Reef) The leatherjacket was named by a Mr C Tate Regan in 1902 (or 1903). He named it Pseudomonacanthus degeni at the time. It later became Thamnaconus degeni CAAB Code:37465037). So Thamnaconus degeni is now the accepted  name for the species, whilst Pseudomonacanthus degeni is a…

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May 11

May 11, 2016

ANZAC Day dive at Carrickalinga

When David Muirhead suggested that we dive at Carrickalinga for our Anzac Day dive (25th April), I happily agreed, since I hadn’t dived there recently, or very much at all for that matter. It seems that no one else was able to join us that day, so it was just the two of us that met at the car park there on the seafront. We simply had to gear up in the car park and walk down a ramp onto…

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Mar 2

March 2, 2016

A discovery by researchers from Flinders University enables the removal of mercury from water & soil

ABC TV’s “Catalyst” program recently discussed mercury levels in fish. They reported that fish are a healthy source of protein and omega-3 fatty acids, but high mercury levels in fish can be a problem. At very high concentrations, mercury has a profound toxic effect on human beings. It is hoped that a new invention can help with the mercury problem. One of the most toxic forms of mercury is methylmercury. It consists of one mercury atom bonded to one carbon…

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Feb 29

February 29, 2016

Sea Snake Sightings or Worm Eels?

Wendy White, the Coordinator for the Normanville Natural Resource Centre, recently sent the following email enquiry to David Muirhead regarding a suspected sea snake sighting (try saying that last bit quickly): – “Hi David, a local resident came into the centre today asking about a ‘snake’ that she found on the beach at Normanville South. She found it being washed up, it was about 30 cm long and a bit thicker than her finger with a yellow head and a…

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Feb 11

February 11, 2016

More photos of a male Senator Fish rubbing its body in the substrate

Since writing my article titled Unusual Behaviour by Senator Fish, Pictilabrus laticlavius, I have observed similar Senator Fish behaviour at Rapid Bay jetty. In March 2015, I had witnessed some unusual behaviour by Senator Fish at Rapid Bay jetty. The unusual behaviour that I witnessed by them was that many of them were often rubbing their bodies in the substrate. (There seemed to be more male Senator Fish than usual swimming around. They weren’t swimming in schools or large groups,…

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Feb 3

February 3, 2016

Pipefish Photos from our Port Hughes Dive

As reported in the article titled “Our ‘Pipefish’ Dive at Port Hughes”, we held a dive at the Port Hughes jetty on 2nd January 2016. The divers on the day consisted of Peter Gower, Chris Hall, Kevin Smith & I. A friend of Chris, and Kevin’s mother, were also there with us. Kevin Smith reported seeing hundreds of juvenile Southern Gulf Pipefish, Stigmatopora narinosa, much less of Spotted pipefish, Stigmatopora argus, three small schools of Brushtail pipefish, Leptoichthys fistularis and a…

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Sep 5

September 5, 2015

The work of Edgar Waite (& his Rainbow Cale painting)

According to Wikipedia, “Heteroscarus acroptilus, the Rainbow Cale, is a species of weed whiting endemic to Australia where it is found in marine waters along the southern coast. It inhabits rocky reefs that have plentiful growth of brown algae and also in beds of seagrass, particularly those of the genus Posidonia. It occurs at depths of from 1 to 15 metres (3.3 to 49.2 ft). This species grows to a length of 24 centimetres (9.4 in). It can also be found in the aquarium trade. This species is…

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