About JD Filmalter

A lover of all things fishy. JD has turned his passion into a career, catching fish and studying their movement behaviour. He currently works as a post-doctoral research fellow at SAIAB.


A couple of weeks ago someone WhatsApped me a video that was doing the rounds on social media. It was of a 20-odd kilo tuna caught by the Bartho brothers on the KwaZulu-Natal coast in South Africa. In the video they suggest that the fish is a southern bluefin tuna (SBT) Thunnus maccoyii. Several SBT [...]


Changing your name on a regular basis is not something one would consider a good life choice. But the gentleman of the sea appears not to mind. Through years of tracking we now know that the leervis of the South (including those on the West Coast, False Bay, Southern Cape and southern Eastern Cape) becomes [...]

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