Erling Svensen, Norwegen
Info
If you are interested in sharks, size, weight, light, technique, finances, tank design as well as food procurement, please click on http://www.Korallenriff.de/Haie.
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Tobias Möser sent us the following info, which we gladly contribute:
Dogfish:
- Not bottom sharks, but almost purely pelagic. If they are lying on the bottom, there is a big problem. They also do not take food from the bottom.
- Tank size too small. From 100 m³ adult dogfish jump out or stop feeding soon.
They need tanks of at least 7 x 7 x 3 m, because they don't like to swim tight arcs.
- In my experience dogfish do not eat shellfish and also only certain types of fish: mackerel (preferred), pollock as well as squid. They are not easy to get tame and difficult to feed, because they always remain cautious and in company with other fish often do not get enough of the food thrown in.
enough of the thrown in food. Stick feeding is mandatory!
- They are very sensitive to disturbances such as divers, strobe lights, erratic night lights, etc.
Diving should be avoided if possible, never on feeding day. Flashing ditto.
Lighting should be controlled by timer if possible so that lights always go on and off at the same time, a dim night light (40W bulb above the tank) is mandatory. Nevertheless, it happens regularly that the animals bump their muzzles. Such injuries usually heal quickly, the faster the better the water quality.
- Dogfish like moderate to moderately strong currents, which may vary in strength at different points in the tank and may also change direction.
Synonyms:
Carcharhinus cyrano Whitley, 1930
Eugaleus galeus (Linnaeus, 1758)
Galeorhinus australis (MacLeay, 1881)
Galeorhinus chilensis (Pérez Canto, 1886)
Galeorhinus galeo (Linnaeus, 1758)
Galeorhinus vitaminicus de Buen, 1950
Galeorhinus zyopterus Jordan & Gilbert, 1883
Galeus australis MacLeay, 1881
Galeus canis Bonaparte, 1834
Galeus chilensis Pérez Canto, 1886
Galeus communis Owen, 1853
Galeus linnei Malm, 1877
Galeus molinae Philippi, 1887
Galeus nilssoni Bonaparte, 1846
Galeus vulgaris Fleming, 1828
Galeus zyopterus (Jordan & Gilbert, 1883)
Notogaleus australis (MacLeay, 1881)
Notogaleus rhinophanes (Péron, 1807)
Squalus galeus Linnaeus, 1758
Squalus rhinophanes Péron, 1807
Shark bites can be quite lethal to humans, especially the 10 most dangerous shark species are considered and can launch unprovoked attacks from humans: - Great white shark - Bull shark - Tiger shark - Sand tiger shark - Blacktip shark - Bronze shark - Spinner shark - Blue shark - Hammerhead shark - Whitetip shark The bite by a shark is one of the most basic fears of humans, but the number of deaths caused by shark attacks is very low: in 2015 there were 98 attacks by sharks and in 6 cases the attack resulted in a fatal end for humans. In 2016 there were 107 attacks by sharks and in 8 cases the attack resulted in a fatal end for humans. Sources: http://hai.ch/Hai-Infos/Unfaelle/index.html http://www.focus.de/reisen/videos/auch-urlaubsorte-betroffen-schrecklicher-rekord-2016-gab-es-mehr-hai-angriffe-als-je-zuvor_id_6519581.html http://www.spiegel.de/wissenschaft/natur/hai-angriffe-erreichen-2015-rekordhoch-weiterer-anstieg-erwartet-a-1076339.html http://www.zeit.de/2016/37/haie-toetung-tierschutz-surfer
In 2022, there were a total of 108 shark attacks in the USA.
Conversely, however, 100 million sharks were killed by humans. http://www.zeit.de/2016/37/haie-toetung-tierschutz-surfer The risk of being bitten by a shark varies greatly from region to region, with most attacks occurring in Florida, Australia and South Africa. Please be careful not to go into the water with bleeding skin wounds, heed bathing warnings from the authorities and be very careful when using surfboards, as sharks can easily confuse the boards with seals and harbour seals. After shark bites, always call a doctor or / and the rescue service as soon as possible, as heavy bleeding can be life-threatening.
https://worldanimalfoundation.org/advocate/shark-attack-statistics/
............................................................................
Tobias Möser sent us the following info, which we gladly contribute:
Dogfish:
- Not bottom sharks, but almost purely pelagic. If they are lying on the bottom, there is a big problem. They also do not take food from the bottom.
- Tank size too small. From 100 m³ adult dogfish jump out or stop feeding soon.
They need tanks of at least 7 x 7 x 3 m, because they don't like to swim tight arcs.
- In my experience dogfish do not eat shellfish and also only certain types of fish: mackerel (preferred), pollock as well as squid. They are not easy to get tame and difficult to feed, because they always remain cautious and in company with other fish often do not get enough of the food thrown in.
enough of the thrown in food. Stick feeding is mandatory!
- They are very sensitive to disturbances such as divers, strobe lights, erratic night lights, etc.
Diving should be avoided if possible, never on feeding day. Flashing ditto.
Lighting should be controlled by timer if possible so that lights always go on and off at the same time, a dim night light (40W bulb above the tank) is mandatory. Nevertheless, it happens regularly that the animals bump their muzzles. Such injuries usually heal quickly, the faster the better the water quality.
- Dogfish like moderate to moderately strong currents, which may vary in strength at different points in the tank and may also change direction.
Synonyms:
Carcharhinus cyrano Whitley, 1930
Eugaleus galeus (Linnaeus, 1758)
Galeorhinus australis (MacLeay, 1881)
Galeorhinus chilensis (Pérez Canto, 1886)
Galeorhinus galeo (Linnaeus, 1758)
Galeorhinus vitaminicus de Buen, 1950
Galeorhinus zyopterus Jordan & Gilbert, 1883
Galeus australis MacLeay, 1881
Galeus canis Bonaparte, 1834
Galeus chilensis Pérez Canto, 1886
Galeus communis Owen, 1853
Galeus linnei Malm, 1877
Galeus molinae Philippi, 1887
Galeus nilssoni Bonaparte, 1846
Galeus vulgaris Fleming, 1828
Galeus zyopterus (Jordan & Gilbert, 1883)
Notogaleus australis (MacLeay, 1881)
Notogaleus rhinophanes (Péron, 1807)
Squalus galeus Linnaeus, 1758
Squalus rhinophanes Péron, 1807
Shark bites can be quite lethal to humans, especially the 10 most dangerous shark species are considered and can launch unprovoked attacks from humans: - Great white shark - Bull shark - Tiger shark - Sand tiger shark - Blacktip shark - Bronze shark - Spinner shark - Blue shark - Hammerhead shark - Whitetip shark The bite by a shark is one of the most basic fears of humans, but the number of deaths caused by shark attacks is very low: in 2015 there were 98 attacks by sharks and in 6 cases the attack resulted in a fatal end for humans. In 2016 there were 107 attacks by sharks and in 8 cases the attack resulted in a fatal end for humans. Sources: http://hai.ch/Hai-Infos/Unfaelle/index.html http://www.focus.de/reisen/videos/auch-urlaubsorte-betroffen-schrecklicher-rekord-2016-gab-es-mehr-hai-angriffe-als-je-zuvor_id_6519581.html http://www.spiegel.de/wissenschaft/natur/hai-angriffe-erreichen-2015-rekordhoch-weiterer-anstieg-erwartet-a-1076339.html http://www.zeit.de/2016/37/haie-toetung-tierschutz-surfer
In 2022, there were a total of 108 shark attacks in the USA.
Conversely, however, 100 million sharks were killed by humans. http://www.zeit.de/2016/37/haie-toetung-tierschutz-surfer The risk of being bitten by a shark varies greatly from region to region, with most attacks occurring in Florida, Australia and South Africa. Please be careful not to go into the water with bleeding skin wounds, heed bathing warnings from the authorities and be very careful when using surfboards, as sharks can easily confuse the boards with seals and harbour seals. After shark bites, always call a doctor or / and the rescue service as soon as possible, as heavy bleeding can be life-threatening.
https://worldanimalfoundation.org/advocate/shark-attack-statistics/
