Viewing: February, 2015

Feb 14

February 14, 2015

European shore crab (Carcinus maenus) at Marino Rocks - Dan Monceaux 2015

Invasive marine species in South Australia

Since first learning about marine biosecurity and the translocation of marine species from one region’s waters to another via commercial shipping and recreational boating, I’ve come to recognise a few of our locally found invasive species. This summer I’ve added another invasive species to the list of alien organisms I’ve found while rock-pooling, beach walking or snorkeling along SA’s coast. The most... Read more

Posted in Invasive species, Species lists | By

Feb 14

February 14, 2015

Scientists studying the mating tactics of giant Australian cuttlefish

When giant Australian cuttlefish, Sepia apama, mate, they meet head-to-head and embrace. The male uses a specialised arm to squirt his sperm in to the mouth of the female. There is some short video footage by Roger Hanlon from the Marine Biological Laboratory in Woods Hole, Massachusetts available. According to that same web page, “To initiate sex, a male spreads... Read more

Posted in Cephalopods | By

Feb 7

February 7, 2015

Juvenile flounder, Glenelg North - Dan Monceaux 2015

Confounded by flounder in South Australian waters

During a walk through the shallows at Glenelg North beach after 9.30 pm last night, in knee-deep water, Emma and I were delighted to spot a numbers of small (likely juvenile) flounder. The animals were each less than 10 cm in length and sported fine, uniform sandy patterns which allowed them to practically disappear on pale, sandy bottom. When startled by our... Read more

Posted in Bony fishes, Citizen Science, Species lists | By

Feb 4

February 4, 2015

Feb 1

February 1, 2015

Helen K- Boat trip - 156 (Port Lincoln) CC BY-NC-ND 2.0

Aquaculture Regulations review open for public comment until March 2, 2015

PIRSA Fisheries and Aquaculture is seeking feedback on proposed changes to the Aquaculture Regulations 2005. This is the first review of the regulations since their commencement in 2005 and aims to simplify regulatory requirements and streamline operations for aquaculture operators. The main areas of the review include administrative changes incorporating navigational marking requirements, environmental programs and aquatic animal health. Targeted... Read more

Posted in Aquaculture, Regulation | By