Feb 8

February 8, 2018

The Japanese Goby is similar to Krefft’s Goby

I have been helping Catherine McMahon from Port River Shellfish Restoration Project to monitor oysters being kept in baskets in the Port River system. One interesting aspect of the monitoring is the marine life that turns up in the oyster baskets. We have found fish, shells, pygmy squid, nudibranchs, flatworms, shrimps, blue-ringed octopus, etc.. I have been pleased to find... Read more

Posted in Bony fishes, Invasive species | By

Feb 8

February 8, 2018

Cleaner Clingfish Cleaning Common Seadragons Captured on Camera at Sydney

Further to my article titled The study of fish cleaning behaviour in South Australian waters , at iNaturalist , Mark McGrouther shows two Common Seadragon, Phyllopteryx taeniolatus images by Andrew Trevor-Jones. Mark reports that the images show an Eastern Cleaner Clingfish, Cochleoceps orientalis on the side of a Common Seadragon. An Eastern Cleaner Clingfish, Cochleoceps orientalis on the side of... Read more

Posted in Bony fishes | By

Feb 4

February 4, 2018

The study of fish cleaning behaviour in South Australian waters

Several papers and publications either authored, co-authored or edited by our Patron, Dr Scoresby Shepherd, detailed his early work regarding the study of fish cleaning behaviour in South Australian waters. These include:- “Paradise is Underwater – Memoir of a marine biologist” (2016) by Dr Scoresby A. Shepherd AO (p.261). “Ecology of Australian Temperate Reefs – The Unique South” (2013) edited... Read more

Posted in Bony fishes, Research | By

Jan 25

January 25, 2018


Dredging will again be carried out in the Outer Harbor shipping channel and the swing basin next winter. The EPA has recommended that Flinders Ports use a smaller dredging vessel than what was used 13 years ago. In 2005, dredge spoil spread down Gulf St Vincent, reducing visibility and smothering seagrass. Environmental groups have called for all dredged silt to... Read more

Posted in Coastal activities, Conservation, Education, intertidal zone, Marine Protected Areas, Pollution, Stormwater | By

Jan 15

January 15, 2018

More About Tropical Fish Cleaners (esp. re Manta Rays as hosts)

A couple of things this week have spurred me on to write a couple of additional things about “Tropical Fish Cleaners and Their Mimics”. It started with a photo of a Bluestreak cleaner wrasse, Labroides dimidiatus, cleaning in the mouth of a giant moray, Gymnothorax javanicus, in Egypt (the Red Sea) on The Global Diving Community Facebook page.  It had... Read more

Posted in Bony fishes, Sharks & Rays | By

Dec 31

December 31, 2017

Bridled leatherjackets and Toothbrush leatherjackets

This photo was taken at Rapid Bay between the old and new jetties: The fish in the background, behind the adult Castelnau’s (aka Pretty polly) wrasse, is an older, juvenile Bridled leatherjacket. The leatherjacket is over a seagrass meadow, predominantly Amphibolis (aka ‘wireweed’).   The Bridled leatherjacket is one of our state’s smallest ‘leatheries’, and smallest of the several seagrass-dependent ‘niche... Read more

Posted in Bony fishes | By

Dec 12

December 12, 2017

Tropical Fish Cleaners and Their Mimics

I first heard about terms such as ‘symbiosis’ and ‘mimicry’ when I began researching for my “The Colour of Fish” articles in 1979. I probably also read about fish cleaners for the first time back then. I discussed symbiosis in my 1980 Journal article “The Colour of Fish”, saying “Symbiosis exists between clownfish and some sea anemones. The stinging tentacles... Read more

Posted in Bony fishes | By

Dec 6

December 6, 2017

Congolli (Pseudaphritis urvillii) discovered in five freshwater rivers across Kangaroo Island

Environment Minister Ian Hunter issued a Press Release on 5th December 2017 concerning the recent discovery of 27 congolli in 5 rivers on KI. It announced that a fish species known as congolli had been discovered in freshwater rivers across Kangaroo Island for the first time. The presence of congolli on Kangaroo Island suggests that the island’s rivers are providing... Read more

Posted in Bony fishes, Coastal species, Freshwater systems, Research | By

Dec 5

December 5, 2017

Port Jackson Shark Aggregations

Recent aggregations of Port Jackson sharks at both Port Noarlunga and Aldinga created much interest in this annual event. I was encouraged to review past articles that were published in our newsletters back in 2006. Our September 2006 newsletter included this article: – “Port Jackson Shark Congregations” by Steve Reynolds Large numbers of Port Jackson Sharks, Heterodontus portusjacksoni, will congregate... Read more

Posted in Bony fishes, Sharks & Rays | By

Dec 1

December 1, 2017

South Australian Dive Medical Practitioners & Medical Facilities

SA Dive Medical Practitioners A dive medical can be done through the RAH Hyperbaric Medicine Unit; Ph: 7074 0000 or at one of the private practises listed below. Make sure you tell the receptionist that you require an occupational/commercial dive medical. Doctor Address Phone Dr Alexander Kleinschmidt SA Sports Medicine Ctr, 70 South Tce, Adelaide SA, 5000 (08) 8211 8002 Dr. S.L.... Read more

Posted in Emergency, Medical, Safety | By