Dave Harasti
daveharasti.bsky.social
Dave Harasti
@daveharasti.bsky.social
Marine Scientist: Spends copious hours underwater taking photos and counting seahorses.
We recently completed a long-term monitoring project of Black rockcod (Epinephelus daemelii); a threatened fish species in NSW and Commonwealth waters. The final report was recently published and a short media clip, including my footage, has been published: #marine #oceans

youtu.be/2xbxJv2NKKw
Are black rockcod still under threat?
YouTube video by NESP Marine and Coastal Hub
youtu.be
June 20, 2025 at 3:07 AM
New paper in Journal of Fish Biology by H. Malcolm and I. We assess the abundance and size of the threatened Black Rockcod (Epinephelus daemelii). Although protected for over 40 years, the species is still not recovering along the NSW coast - Australia. #fish
onlinelibrary.wiley.com/doi/10.1111/...
December 23, 2024 at 1:29 AM
Its #WorldFisheriesDay!

My contribution for the day is this video I took earlier in the week of a school of Silver Drummer and Australian Mulloway swimming around the seahorse hotels in the Port Stephens estuary.
November 21, 2024 at 10:35 AM
To recover populations of the Endangered White’s seahorse, a few years ago I came up with the concept ‘Seahorse Hotels’; artificial habitats placed in areas where natural seahorse habitats have been lost. Here is what they look like when deployed, compared to covered in marine growth 4 years later.
November 20, 2024 at 5:19 AM
"From Little Things, Big Things Grow...". We've recently been successful in growing cuttings of the Endangered Cauliflower soft coral in aquaria, that we transplanted back into the Port Stephens estuary in April 2024. 7 months later and they have grown quite large and are looking very healthy!
November 20, 2024 at 4:21 AM