Even the ancient Greeks held the yellow-striped mullus – or, in short, the mullus – in high regard. With rising sea temperatures, it has been appearing on the Swedish west coast in autumn for several years now. However, spawning and reproduction have never been recorded in Swedish waters. But there are many indications that the mullet can now be considered a resident and reproducing species. Many shallow bays along the west coast have been swarming with its fry this summer.
The Swedish name is St Pers fish, named after the apostle Peter and has a false eye to confuse predatory fish. In the Mediterranean, it is a popular food fish. But now it has arrived here in Sweden. At a depth of 20 meters in Gullmarsfjorden on the Swedish west coast, Deep Sea Reporter encountered a most ordinary and spectacular fish: the John Dory.
A species of Turbellaria completely new to Swedish waters has been discovered by divers along the Swedish west coast. It is large and dancing in nature and originates from more southerly latitudes. Deep Sea Reporter encountered the new worm at Flatholmen outside Lysekil.
The invasive humpback salmon has once again been observed in Swedish waterways, most recently in the Ätran River in Halland. The species has large spawning migrations and its impact on ecosystems is not yet known. It is therefore considered a potential threat to the already severely depleted Swedish Atlantic salmon. Researchers and authorities want to stop its spread before it is too late.
(TT) Sharks eating invasive fish, GPS-equipped raccoons and goats attracting a mate and then killing it. All are examples of animals being used to protect nature or other animals. But is it ethically defensible? Maybe not, says a new study.
It has a black tongue, a hump on its back and defends its mating grounds to the death - the invasive Russian humpback salmon has become a huge problem in Norway and is also increasing on the Swedish west coast.
Sargasso seaweed, a brown algae, was initially discovered in 1985 in northern Bohuslän and has since become prevalent along the Swedish west coast.
In English the species name is "clinging jellyfish" in Swedish it is called “klängmedusa”.
The Japanese Oyster is larger than our domestic variety, and its edges are so sharp that medical services on the west coast have issued warnings to bathing tourists.
This is what it looks like when cormorants have taken over an island in Stockholm’s archipelago. It’s not exactly attractive when you were expecting green skerries and peacefully lapping waves.
The small but spectacularly beautiful comb jelly Mnemiopsis leydyi, can reproduce at a dismaying speed, and copes with warm and cold water and even different amounts of salinity. And when it spreads to areas where it isn’t naturally found, it can cause devastating damage. As in the Black Sea in the 1980s.
The most likely scenario is that the beautiful red lionfish spread into the sea off the coast of Florida when an aquarium was smashed by Hurricane Andrew thirty years ago, writes the US National Oceanic and Atmospheric Administration (NOAA). Today, the red lionfish is completely dominant along the US coast and is out-competing other species in the ecosystem.
The invasive fish species black-mouthed goby is already present along the Baltic coast. But now the fish species has made its way far up into the Bothnian Sea, writes Örnsköldsvik's Allehanda
The burning clinging jellyfish was discovered in 2018 and has found its way home in the water at Lilla Askerön, in Bohuslän. Ideally, it wants to live in the eelgrass meadows that the researchers are now restoring in the area
