What are some monkfish adaptations
The monkfish (Lophius piscatorius), also as Frogfish, Lotte or Construction agency known, belongs to the anglerfish family (Lophiidae) to the genusLophius. In English it is the monkfish fishing-frog, frog-fish or sea-devil called. The anglerfish is often associated with the angel shark (Squatina squatina) mistaken.
Appearance and dimensions
The anglerfish can reach a body length of about 2 meters, usually the body length is between 50 centimeters and 100 centimeters. The weight of the anglerfish is about 57.7 to 60 kilograms. Overall, the body shape of the anglerfish is strongly flattened. Furthermore, the monkfish also has a large, flattened head with a wide mouth, which is semicircular inside with large, strong, curved and pointed teeth. From the back of the head the body is pointed to the end of the tail. There are large, rounded pectoral fins and approximately equally large dorsal and anal fins of the anglerfish. Dorsal spines 8-8, dorsal soft rays 11-12, anal soft rays 9-11. Overall, the number of rays and especially the fins is made up as follows: D1: VI, D2: 11-12, A: 9-11, P: 23-28, V: 6.There are also long spines dorsally. The peritoneum appears pale. The skin appears thin, rough and limp. Furthermore, the skin does not have any flakes.
Way of life
The anglerfish is not dangerous to humans. He lives solitary and stays at different depths. The depths can be 20 meters to 1,000 meters. As a lazy ambulance hunter, most of the time it lies well camouflaged and half-buried in the sandy or muddy ground and waits for prey animals to pass by. When a prey animal approaches, the rod with the dummy bait attached to it is moved. Small prey animals are sucked in with the stream of water by suddenly opening their wide mouth.
The anglerfish is found in the southwestern Barents Sea and the Strait of Gibraltar, including the Mediterranean and Black Seas. But it has also been sighted near Iceland and near Mauritania. The populations in the North Atlantic appear much larger than the populations found in West Africa. They also stay more at shallower depths. The anglerfish lives below 20 meters in sandy and muddy gravel, while at a depth of 1,000 meters it prefers to live on stony or rocky soils. Usually the anglerfish lies half-buried in the sediment and waits for prey animals to pass by with its angel-like organ.
The anglerfish feeds mainly on ray fins (Actinopterygii). Usually they are smaller fish (Pisces) such as dogfish (Squalidae), Rays (Batoidae), Sand eels (Ammodytidae), Bullheads (Cottidae), Disc bellies (Liparidae), Cod (Gadidae) and flatfish (Pleuronectiformes). Occasionally, however, the monkfish also eats lobster (Palinuridae), Cephalopods (Cephalopoda), Crustaceans (Crustacea) as well as diving seabirds. The most important and preferred fish species for the monkfish are the little cod (Trisopterus minutus) and golden salmon (Argentinidae). Also the Norway lobster (Nephrops norvegicus) from the family of the lobster-like (Nephropidae), which only plays a small role in the diet.
ReproductionThe anglerfish spawns in British waters between May and June and in the North Atlantic between June and August. The female can lay one to three million eggs at a depth of 160 to 200 meters. The eggs are in a band of mucus that can be over ten meters long and about 90 centimeters wide. Both sexes do not care for the brood and so the slimy band with the eggs drifts left to its own devices in the sea.
In some countries the monkfish is valued as an excellent food fish because the meat is white and firm. In addition, the meat of the monkfish is boneless, but only the tail is eaten. In Europe, the monkfish is usually not sold under its real name, but smoked without skin or head as a trout sturgeon or as a lotte. Furthermore, the monkfish is marketed fresh or frozen and is steamed, briefly seared, boiled, deep-fried, roasted, grilled, baked and heated in the microwave, eaten. Between 1992 and 1994 the total catch was around 11,000 to 12,000 tonnes.
Hazard and protectionThe anglerfish is not on the IUCN Red List. The biological and ecological properties of deep-sea fish such as the anglerfish are relatively unknown and poorly studied and largely unregulated by fisheries. It is particularly difficult to assess whether unregulated fishing is affecting populations of this species.
The anglerfish is featured in the UK Biodiversity Action Plan. The European Union has not only defined regulatory powers over commercial sea fishing for the member states, but also allows individual countries a certain degree of flexibility in the application of EU regulations. The commercial use of monkfish is regulated by the total allowable catch (TAC). The fishing areas in the North Sea and west of Scotland are pre-determined by the International Council for the Exploration of the Sea (ICES). However, the fishing industry advocates an increase and extension of the permission to catch monkfish in deeper waters. ICES fears that commercial deep-sea fishing is threatening many species of fish. ICES has therefore recommended that better records be kept of catches and that commercial deep-sea fishing be drastically reduced. Today anglerfish can also be easily overexploited and there are no plans to manage their conservation. In the Mediterranean and Black Seas, too, the catches and age of anglerfish are stipulated according to the GFCM.
Uncontrolled, non-commercial use of fish stocks by commercial fishing with trawls always harbors risks for this fascinating habitat. Before we learn to understand the importance and value of the ocean as a whole, many species are critically endangered or have become extinct.
Literature and sources
- Bernhard Grzimek: Grzimek's animal life. Fish 2, amphibian. Deutscher Taschenbuch Verlag GmbH & Co.KG, Munich October 1993. ISBN 3-423-05970-2
- Kurt Deckert: Urania animal kingdom - fish, amphibians, reptiles. Urania-Verlag Leipzig - Jena - Berlin 1991. ISBN 3-332-00376-3
Page categories: Worth reading | monkfish
- Is the umpteenth a real word
- What is Pope Gregory VIII known for?
- What does reflection mean men cowards
- Windows 10 has an automatic login
- Why do children trust people easily
- What can we learn from every avenger
- How do AIIMS PG toppers prepare
- What is ThoughtWorks Technology Radar
- Ethics are rewarded in business
- How many digits does a computer understand?
- Baptized Jesus
- Where can I learn photography in Delhi
- What is useful in an elephant
- What types of NET applications are there
- How to say dick in Spanish?
- What form of music is ABCB
- Is it Safe to Eat Meat infrequently?
- How do I learn critical thinking
- Is Esperanto a wrong language
- Which country helps the European Union best
- Is acoustic foam the best soundproofing material
- Shrinks cotton in cold water
- Can certain deeds be measured in Islam
- Who would win Melkor or Manwe?