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Huso Naccarii
The Adriatic sturgeon (''Huso naccarii'') is a species of fish in the family Acipenseridae. It is native to the Adriatic Sea and large rivers which flow in it of Albania, Greece, Italy, Montenegro, Croatia, Bosnia and Herzegovina and Slovenia. Prior to 2025, it was placed in the genus ''Acipenser'', but this placement was found to be Paraphyly, paraphyletic, and it is more accurately placed in the genus ''Huso''. Description The Adriatic sturgeon reaches a maximum length exceeding ; the published maximum weight was , but large wild fish recently caught were evidently exceeding . Like other sturgeons it has an elongated body, heterocercal tail, partially Cartilage, cartilaginous skeleton, naked skin and longitudinal series of bony scutes on the body. The Rostrum (anatomy), rostrum is tendentially conical and rather short (1/3 of the head), the head is broad and rounded at the apex, with a protractile mouth which lower lip is thin with a central cleft, and four Barbel (anatomy ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sea Lamprey
The sea lamprey (''Petromyzon marinus'') is a parasitic lamprey native to the Northern Hemisphere. It is sometimes referred to as the "vampire fish". It was likely introduced to the Great Lakes region through the Erie Canal in 1825 and the Welland Canal in 1919 where it has attacked native fish such as lake trout, lake whitefish, chub, and lake herring. Sea lampreys are considered a pest in the Great Lakes region as each individual has the potential of killing 40 pounds of fish through its 12–18 month feeding period. Description The sea lamprey has an eel-like body without paired fins. Its mouth is jawless, round and sucker-like, and as wide or wider than the head; sharp teeth are arranged in many concentric circular rows around a sharp, rasp-like tongue. There are seven branchial or gill-like openings behind the eye. Sea lampreys are olive or brown-yellow on the dorsal and lateral part of the body, with some black marblings, with lighter coloration on the belly. With ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Heterocercal
Fins are moving appendages protruding from the body of fish that interact with water to generate thrust and help the fish swim. Apart from the tail or caudal fin, fish fins have no direct connection with the back bone and are supported only by muscles. Fish fins are distinctive anatomical features with varying structures among different clades: in ray-finned fish (Actinopterygii), fins are mainly composed of bony spines or rays covered by a thin stretch of scaleless skin; in lobe-finned fish (Sarcopterygii) such as coelacanths and lungfish, fins are short rays based around a muscular central bud supported by jointed bones; in cartilaginous fish (Chondrichthyes) and jawless fish (Agnatha), fins are fleshy " flippers" supported by a cartilaginous skeleton. Fins at different locations of the fish body serve different purposes, and are divided into two groups: the midsagittal ''unpaired fins'' and the more laterally located ''paired fins''. Unpaired fins are predominant ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tagliamento
The Tagliamento (; ; ) is a braided river in north-east Italy, flowing from the Alps to the Adriatic Sea at a point between Trieste and Venice. The Tagliamento river is considered as the last morphologically intact river in the Alps. (Its course has not been altered by human intervention.) For this reason, it has been the subject of many scientific investigations into its peculiar characteristics: these include its 150 km long corridor which connects the Alps and the Adriatic Sea, its unconstrained floodplain, which hosts several aquatic and terrestrial habitats, and its over 600 islands. The source is in the Mauria Pass, on the border between the regions of Veneto and Friuli-Venezia Giulia. In the upper section, it flows through the historic Carnia region, in the northern part of the province of Udine. In the middle and lower sections, it first sets the boundary between the provinces of Udine and Pordenone and later between the former and the Province of V ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Livenza
The Livenza (; ; ) is a river in the Italian provinces of Pordenone, Treviso and Venice. Its source is near Polcenigo and Caneva in Pordenone. It flows in a southeasterly direction past Sacile and forms the border between the provinces of Pordenone and Treviso roughly between Brugnera and Motta di Livenza. It continues to flow in a southeasterly direction, forming the border between the provinces of Treviso and Venice before flowing into the province of Venice near Santo Stino di Livenza. It flows near La Salute di Livenza and finally enters the Adriatic Sea The Adriatic Sea () is a body of water separating the Italian Peninsula from the Balkans, Balkan Peninsula. The Adriatic is the northernmost arm of the Mediterranean Sea, extending from the Strait of Otranto (where it connects to the Ionian Se ... near Caorle. References External links Rivers of Italy Rivers of the Province of Pordenone Rivers of the Province of Treviso Rivers of the Metropolitan City of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Piave (river)
The Piave (; ) is a river in Northeast Italy. It begins in the Alps and flows southeast for into the Adriatic Sea near the city of Venice. One of its tributaries is the Boite. In 1809 it was the scene of a battle during the Napoleonic Wars, in which Franco-Italian and Austrian forces clashed. In 1918, during World War I, it was the scene of Battle of the Piave River, the last major Austro-Hungarian attack on the Italian front, which failed. The Battle of the Piave River was a decisive battle of World War I on the Italian Front. In Italy the river is thus called ''Fiume Sacro alla Patria'' (Sacred River of the Homeland) and is mentioned in the patriotic song " La leggenda del Piave". It was eventually followed by the Battle of Vittorio Veneto later that year. Viticulture North of the city of Venice along the Piave Valley is the ''Denominazione di origine controllata'' (DOC) zone that makes up the Veneto wine region known as the Piave DOC. Here both red and white wine are p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bacchiglione
__NOTOC__ The Bacchiglione (, "Little Medoacus") is a river that flows in Veneto, northern Italy. It rises in the Alps and empties about later into the Brenta River near Chioggia. It flows through and past a number of cities, including Vicenza and Padua. It acted for many centuries as a significant waterway up to Vicenza, above which it ceases to be navigable. It was connected in the 19th century to the Adige by a canal. Course The river starts in some springs in the towns of Dueville and Villaverla, in the province of Vicenza. Here it is called "Bacchiglioncello". Just upstream of the city of Vicenza receives water from the Leogra Timonchio (which descends from Mount Pasubio). At this junction, the river becomes the Bacchiglione. At Ponte del Bo, above Vicenza, it joins with the Orolo. In Vicenza, the Bacchiglione is joined by the rivers Tesina, Retrone and Astichello. The river is about long and has a basin of . The average flow of the Bacchiglione in Padua is about 30 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Brenta (river)
The Brenta is an Italian river that runs from Trentino to the Adriatic Sea just south of the Venetian lagoon in the Veneto region, in the north-east of Italy. During the Roman era, it was called Medoacus (Ancient Greek: ''Mediochos'', ''Μηδειοχος'') and near Padua it divided in two branches, Medoacus Maior (Greater Medoacus) and Medoacus Minor (Lesser Medoacus). The river changed its course in the early Middle Ages, and its former bed through Padua was occupied by the Bacchiglione. It is long and was first channelled in the 16th century when a long canal was built from the village of Stra to the Adriatic Sea, bypassing the Venetian lagoon. A branch of the Brenta, named '' Naviglio del Brenta'', was left to connect directly Venice and Padua (which was a kind of second capital of the Venice Republic). It runs through Stra, Fiesso d'Artico, Dolo, Mira, Oriago and Malcontenta to Fusina (which is part of the comune A (; : , ) is an administrative division ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Adige
The Adige is the second-longest river in Italy, after the Po. It rises near the Reschen Pass in the Vinschgau in the province of South Tyrol, near the Italian border with Austria and Switzerland, and flows through most of northeastern Italy to the Adriatic Sea. The name of the river is of unknown origin. Nineteenth-century theories, such as a derivation from the Proto-Celtic 'the water', and alleged to be cognate with the River Tees in England (anciently ''Athesis'', ''Teesa''), have never been accepted by Celtic onomasts and are now completely obsolete. Description The river source is near the Reschen Pass () close to the borders with Austria and Switzerland above the Inn Valley. It flows through the artificial alpine Lake Reschen. The lake is known for the church tower that marks the site of the former village of Alt Graun ("Old Graun"); it was evacuated and flooded in 1953 after the dam was finished. Near Glurns, the Rom River joins from the Swiss Val Müstair. T ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Acipenser Naccarii Head
''Acipenser'' is a genus of sturgeons, containing three species native to freshwater and estuarine systems of eastern North America and Europe. It is the type genus of the family Acipenseridae and the order Acipenseriformes. Taxonomy Prior to 2025, ''Acipenser'' contained almost all species in the Acipenseridae outside of ''Huso'' and the "shovelnose" sturgeons (''Scaphirhynchus'' and '' Pseudoscaphirhynchus''). However, such a placement is now known to be paraphyletic with respect to the other genera, and these species have since been split into ''Huso'' and '' Sinosturio''. ''Acipenser'' in the strict sense (''sensu stricto'') has been redefined with only 3 species. This is an ancient genus, with phylogenetic evidence suggesting that it is the most basal sturgeon genus, having diverged from other sturgeons during the Early Cretaceous period. Several fossil species known as far back as the Late Cretaceous, with the fossils of two species ('' A. praeparatorum'' and '' A. amnisi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Operculum (fish)
The operculum is a series of bones found in bony fish and chimaeras that serves as a facial support structure and a protective covering for the gills; it is also used for respiration and feeding. Anatomy The opercular series contains four bone segments known as the preoperculum, suboperculum, interoperculum and operculum. The preoperculum is a crescent-shaped structure that has a series of ridges directed posterodorsally to the organism’s canal pores. The preoperculum can be located through an exposed condyle that is present immediately under its ventral margin; it also borders the operculum, suboperculum, and interoperculum posteriorly. The suboperculum is rectangular in shape in most bony fish and is located ventral to the preoperculum and operculum components. It is the thinnest bone segment out of the opercular series and is located directly above the gills. The interoperculum is triangular shaped and borders the suboperculum posterodorsally and the preoperculum anterodo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Acipenser Sturio
The European sea sturgeon (''Acipenser sturio''), also known as the Atlantic sturgeon or common sturgeon, is a species of sturgeon native to Europe. It was formerly abundant, being found in coastal habitats all over Europe. Most specifically, they reach the Black and Baltic Sea. It is anadromous and breeds in rivers. It is currently a critically endangered species. Although the name Baltic sturgeon sometimes has been used, it has now been established that sturgeon of the Baltic region are '' A. oxyrinchus'', a species otherwise restricted to the Atlantic coast of North America. Description The wedge-shaped head of the European sea sturgeon ends in a long point. There are many sensitive barbels on the facial area. The dorsal fins are located very far back on the body. Five longitudinal lines of large osseous plates are found on the body of the fish. The stomach is yellow and the back is a brownish grey. This sturgeon can reach and in weight, but a more common length is . The ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Barbel (anatomy)
In fish anatomy and turtle anatomy, a barbel is a slender, whisker like sensory organ near the mouth (sometimes called whiskers or tendrils). Fish that have barbels include the catfish, the carp, the goatfish, the hagfish, the sturgeon, the zebrafish, the black dragonfish and some species of shark such as the sawshark. Barbels house the taste buds of such fish and are used to search for food in murky water. The word ''barbel'' comes from Latin Latin ( or ) is a classical language belonging to the Italic languages, Italic branch of the Indo-European languages. Latin was originally spoken by the Latins (Italic tribe), Latins in Latium (now known as Lazio), the lower Tiber area aroun ... ''barbula'' 'little beard'. Barbels are sometimes erroneously referred to as '' barbs'', which are found in bird feathers for flight. Barbels may be located in a variety of locations on the head of a fish. "Maxillary barbels" refers to barbels on either side of the mouth. Barbels ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
