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Dave Harasti

@daveharasti

Marine Scientist: Spends copious hours underwater taking photos and counting seahorses.

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14.02.2024
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Latest posts by Dave Harasti @daveharasti

Are black rockcod still under threat?
Are black rockcod still under threat? YouTube video by NESP Marine and Coastal Hub

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

20.06.2025 03:06 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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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/...

23.12.2024 01:29 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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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.

21.11.2024 10:35 πŸ‘ 5 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
A seahorse hotel deployed at the Pipeline site in Port Stephens

A seahorse hotel deployed at the Pipeline site in Port Stephens

Seahorse Hotel that is four years old covered in sponges.

Seahorse Hotel that is four years old covered in sponges.

To recover populations of the Endangered White’s seahorse, a few years ago I came up with the concept β€˜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.

20.11.2024 05:19 πŸ‘ 2 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
Soft coral cuttings being grown in aquaria

Soft coral cuttings being grown in aquaria

Soft corals cuttings transplanted back into the wild in April 2024 and photographed Noc 24.

Soft corals cuttings transplanted back into the wild in April 2024 and photographed Noc 24.

"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!

20.11.2024 04:21 πŸ‘ 7 πŸ” 2 πŸ’¬ 0 πŸ“Œ 0