Home Authors Posts by Jill Studholme

Jill Studholme

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A scuba diver for over 40 years with a degree in biology, Jill Studholme has an special interest in marine biology, coral reef conservation and the underwater environment. She edits SCUBA News (ISSN 1476-8011), the monthly newsletter with articles on diving and marine science. She tweets as @SCUBANews.
Christmas Island red crab

Christmas Island Red Crabs’ Mammoth Migration

Christmas Island red crab's mammoth migration. Over 40 million of them walk up to 14 km a day to the sea. When rains are late the crabs rush to seaside, if not then they linger for up to a week on the way to feed.
Silky shark

Silky sharks conservation effort working in Atlantic,  but Indo-Pacific still a problem

99.8% of shark fins come from Indo-Pacific: conservation efforts in Atlantic Ocean are working
Oceanic Whitetip Shark

Creature of the Month: Oceanic Whitetip Shark – Carcharhinus longimanus

Diving with Oceanic Whitetips The glorious oceanic whitetip sharks spend a lot of time in shallow water, tend to swim slowly and are...
Clownfish eggs - super macro - by Paulo Isgro

Enter the Ocean Art 2020 underwater photography competition

From now to 30 November 2020 you can submit your images to the prestigious Ocean Art competition. Prizes worth $40,000 are on...
golden trevally

Creature of the Month: Golden Trevally

The young fish like to seek out large animals like sharks, groupers and dugongs for protection, acting as pilot fish.
California Sheephead

Sex-changing fish recover more quickly from over-fishing

People eat a lot of fish. Different sex-changing fish can follow several signals that prompt them to change sex. Some change from female to male at a fixed size or age. Often, fisheries will only harvest fish over a certain size. This means catching more males because they are usually bigger, which then skews the population towards female. Not enough males are then available to fertilise all the eggs produced by the females.
4th Place Macro Ocean Art 2019 Petr Polách

Ocean Art reveals best underwater photos of the year

Congratulations to all winners of the Ocean Art Underwater Photo Competition 2019 - stunning underwater photos from around the world. Over $85,000 in prizes have been awarded to 85 professional and amateur photographers in categories from Coldwater to Blackwater.
Sea fan

New danger for sea fans in warming seas: Metal pollution

Metals like copper from agricultural runoff and marine paint leaching from boat hulls poses a threat to soft coral sea fans, especially in warming...
North Atlantic Right Whale, Mother and Calf

Right whale mothers ‘whisper’ to their calves to avoid attracting predators

Instead of "whooping" they make very quiet, short, grunt-like sounds that can't be heard more than a short distance away.
Trinchesia cuanensis nudibranch

New Nudibranch species discovered in Europe

Even though European nudibranchs are some of the best studied in the world, scientists have now identified three new species. Divers searched around Europe for Trinchesia sea slugs – in the UK, Ireland, Norway, Sweden, Spain, Italy, France, Croatia and Russia.