Dave Harasti
@daveharasti
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Marine scientist - Port Stephens, NSW. Likes diving to count fish, tagging seahorses and photographing marine critters. All views expressed here are my own.
Nelson Bay
Joined December 2013
Finally a good news story for a threatened marine species. Our research shows that the 'Critically Endangered' Grey Nurse Shark is starting to show signs of recovery in the wild, with the population slowly increasing! 😎 #shark #marine
https://t.co/68P4Igq1Ut
abc.net.au
Scientists say increasing numbers of east coast grey nurse sharks is rare good conservation news for the critically endangered species.
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Perfect timing with our 2025 Norfolk Island trip: new paper on tiger shark movement just out #NorfolkSharks
https://t.co/PulzdV3BGJ 35 tiger sharks (avg size 4 m) satellite tracked over 5 years Led to the designation of @SharkRayAreas's Norfolk Ridge https://t.co/3gwG7itzhs
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📑 #NewStudy by Knott et al. looks at patterns of abundance for Eastern Blue #Groper along the #NSW coast, following trial rules prohibiting harvesting the species. This study will inform future management and regulations. 👀 https://t.co/RicbWIGV27
#Australia #fish #biology
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Assessing changes in threatened black rockcod Epinephelus daemelii abundance and length over the past 15 years in New South Wales, Australia - Harasti - Journal of Fish Biology - Wiley Online Library
onlinelibrary.wiley.com
Ideally, protection of a threatened fish will lead to their recovery in abundance, distribution, and size structure within the population, to a point where they are no longer considered threatened....
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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. https://t.co/WaUdY8gGNU
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Our seahorse hotels from the Sydney Seahorse Project got a shoutout in @NatGeo ! Check out number 7 😃 #SIMSAustralia #SydneySeahorseProject #SeahorseHotels @mitch_brennan @MartinaADoblin @daveharasti
nationalgeographic.com
The capital of New South Wales has an array of urban adventures on its doorstep, with activities ranging from foraging walks and bridge climbs to harbour kayaking tours.
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All new species of Pygmy Pipehorse!
A New Record and Species of Pygmy Pipehorse of the Genus Cylix (Teleostei, Syngnathidae) from South Africa and the African Continent by @syngnathids @Rich_Underwater @daveharasti and @ClaassensLouw
@IUCNSeahorse OPEN ACCESS DOI link: https://t.co/iG5jGxaGgs
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Do white sharks become conditioned or make associations with cage-diving boats? Answer: NO We tracked >70 sharks for 4 years and observed an opposite response: habituation, where white sharks response to the boats decreased over time https://t.co/mVHVoVlKaq led by @Yuri_Niella
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The latest episode of Landline features a story on the new breeding program at the Port Stephens Fisheries Institute for the Endangered White's seahorse: https://t.co/nphqoQiqg9?
abc.net.au
ABC Rural News provides authoritative coverage of the business and politics of Australian farming, livestock, forestry, agriculture and primary production
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Just in time for Christmas! Check out my new White's Seahorse Illustration:
stickfigurefish.com.au
A collection of products featuring my illustration of a White's Seahorse, Hippocampus whitei Bleeker 1855.
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This year we've been getting quite a few Eastern rock lobsters (Jasus verreauxi) on our BRUVs, much more than I have seen in previous years. Obviously they are attracted to the bait, this one really didn't want to let go! 😄
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The NSW Fisheries Scientific Committee has determined that the Lord Howe abalone (Haliotis rubignosa) is eligible for listing as Critically Endangered under the Fisheries Management Act 1994. To view the determination and make a submission see: https://t.co/YQNa2Yazmm
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The NSW Fisheries Scientific Committee has determined that the McCulloch’s anemonefish (Amphiprion mccullochi) is eligible for listing as Critically Endangered under the Fisheries Management Act 1994. To view the determination and make a submission see: https://t.co/YQNa2Yazmm
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A new paper out from Dr Tom Davis and myself that demonstrates the benefits of a small urbanised no-take MPA on local fish diversity following 40 years of protection: https://t.co/s3iR6Frjjl
mdpi.com
Small no-take marine protected areas (MPAs) in urban settings can fail to adequately protect biodiversity due to the combined effects of illegal fishing and species emigrating outside the protected...
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New paper out, with our exciting discovery of how the Endangered soft coral Dendronephthya australis reproduces and #threatenedspecies #coralrestorarion @CoralTrace @daveharasti and thanks so much to @fab_coral for being on call during these discoveries
link.springer.com
Marine Biology - The habitat-forming Endangered ‘cauliflower’ soft coral Dendronephthya australis, endemic to South-east Australia, is in rapid decline. To aid future conservation...
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We had an unexpected visitor to one of our BRUVs last week whilst sampling off Port Stephens.... #marinelife #oceans 🦠😎
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