| Cordylophora caspia | |
|---|---|
 | |
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Cnidaria |
| Class: | Hydrozoa |
| Order: | Anthoathecata |
| Family: | Cordylophoridae |
| Genus: | Cordylophora |
| Species: | C. caspia |
| Binomial name | |
| Cordylophora caspia | |
| Synonyms [1] | |
| |
Cordylophora caspia (or freshwater hydroid) is a species of athecate hydroid in the family Cordylophoridae. [1]
C. caspia is native to brackish and fresh water habitats around the Black Sea and Caspian Sea. From there it has spread, on the hulls of ships or by some other means, via channels and inland waterways to most of the temperate and tropical world. [1] It arrived in the Baltic Sea in the early nineteenth century and spread rapidly to the estuaries and inland waterways of Western Europe, reaching Ireland by 1842. By 1885 it had made its way to Australia and by 1944 to Panama. It has not reached Antarctica. [2]
A port is a maritime facility comprising one or more wharves or loading areas, where ships load and discharge cargo and passengers. Although usually situated on a sea coast or estuary, ports can also be found far inland, such as Hamburg, Manchester and Duluth; these access the sea via rivers or canals. Because of their roles as ports of entry for immigrants as well as soldiers in wartime, many port cities have experienced dramatic multi-ethnic and multicultural changes throughout their histories.
A waterway is any navigable body of water. Broad distinctions are useful to avoid ambiguity, and disambiguation will be of varying importance depending on the nuance of the equivalent word in other languages. A first distinction is necessary between maritime shipping routes and waterways used by inland water craft. Maritime shipping routes cross oceans and seas, and some lakes, where navigability is assumed, and no engineering is required, except to provide the draft for deep-sea shipping to approach seaports (channels), or to provide a short cut across an isthmus; this is the function of ship canals. Dredged channels in the sea are not usually described as waterways. There is an exception to this initial distinction, essentially for legal purposes, see under international waters.
The Tamar is a river in south west England that forms most of the border between Devon and Cornwall. A part of the Tamar Valley is a World Heritage Site due to its historic mining activities.
The Caspian tern is a species of tern, with a subcosmopolitan but scattered distribution. Despite its extensive range, it is monotypic of its genus, and has no accepted subspecies. The genus name is from Ancient Greek hudros, "water", and Latin progne, "swallow". The specific caspia is from Latin and, like the English name, refers to the Caspian Sea.
The Intracoastal Waterway (ICW) is a 3,000-mile (4,800 km) inland waterway along the Atlantic and Gulf of Mexico coasts of the United States, running from Massachusetts southward along the Atlantic Seaboard and around the southern tip of Florida, then following the Gulf Coast to Brownsville, Texas. Some sections of the waterway consist of natural inlets, saltwater rivers, bays, and sounds, while others are artificial canals. It provides a navigable route along its length without many of the hazards of travel on the open sea.
Hydrozoa is a taxonomic class of individually very small, predatory animals, some solitary and some colonial, most of which inhabit saline water. The colonies of the colonial species can be large, and in some cases the specialized individual animals cannot survive outside the colony. A few genera within this class live in freshwater habitats. Hydrozoans are related to jellyfish and corals and belong to the phylum Cnidaria.
The zebra mussel is a small freshwater mussel. The species originates from the lakes of southern Russia and Ukraine, but has been accidentally introduced to numerous other areas and has become an invasive species in many countries worldwide. Since the 1980s, the species has invaded the Great Lakes, Hudson River, and Lake Travis.
The Royal Canal is a canal originally built for freight and passenger transportation from Dublin to Longford in Ireland. It is one of two canals from Dublin to the River Shannon and was built in direct competition to the Grand Canal. The canal fell into disrepair in the late 20th century, but much of it has since been restored for navigation. The length of the canal to the River Shannon was reopened on 1 October 2010, but a final spur branch, to Longford Town, remains closed.
The Chinese mitten crab, also known as the Shanghai hairy crab, is a medium-sized burrowing crab that is named for its furry claws, which resemble mittens. It is native to rivers, estuaries and other coastal habitats of East Asia from Korea in the north to Fujian, China in the south. It has also been introduced to Europe and North America, where it is considered an invasive species. The species features on the list of invasive alien species of Union concern. This means that the import of the species and trade in the species is forbidden in the whole of the European Union.
Dreissena is a genus of small freshwater mussels in the family Dreissenidae in the class Bivalvia. They are found attached to firm substrates by threads from underneath the shells and are the only freshwater bivalves to attach to hard substrates in high densities while having a planktonic larval stage. They are considered the most aggressive freshwater invader in the world because of their ability to invade environments in every one of their life cycle.
The Millennium Ribble Link is a linear water park and new navigation which links the once-isolated Lancaster Canal in Lancashire, England to the River Ribble. The Lancaster Canal was never connected to the rest of the English waterways network, because the planned aqueduct over the River Ribble was never built. Instead, a tramway connected the southern and northern parts of the canal. An idea for a connecting link following the course of the Savick Brook was proposed in 1979, and the Ribble Link Trust campaigned for twenty years to see it built. The turn of the Millennium, and the funds available from the Millennium Commission for projects to mark the event was the catalyst for the project to be implemented, and although completion was delayed, the navigation opened in July 2002.
Vavaʻu is an island group, consisting of one large island and 40 smaller ones, in Tonga. It is part of Vavaʻu District, which includes several other individual islands. According to tradition, the Maui god created both Tongatapu and Vavaʻu, but put a little more effort into the former. Vavaʻu rises 204 m (669 ft) above sea level at Mount Talau. The capital is Neiafu, situated at the Port of Refuge.
Turritopsis dohrnii, also known as the immortal jellyfish, is a species of small, biologically immortal jellyfish found worldwide in temperate to tropic waters. It is one of the few known cases of animals capable of reverting completely to a sexually immature, colonial stage after having reached sexual maturity as a solitary individual. Others include the jellyfish Laodicea undulata and species of the genus Aurelia.
Tenellia adspersa, common name the miniature aeolis, is a species of very small sea slug, an aeolid nudibranch, a marine gastropod mollusk in the family Fionidae. It is the type species of the genus Tenellia.
The West Coast Canal or National Waterway No 3 is a 205 km (127 mi) long inland navigational route located in Kerala, India, which runs from Kollam to Kottapuram. It was declared a National Waterway in 1993. In addition to the main stretch, Champakara and Udyogmandal canals are navigable and connect the industrial centers of Kochi to Kochi port Inland Waterways Authority of India (IWAI) under the Ministry of Shipping is coordinating the task for developing, monitoring and administering national waterways. It is the first National Waterway in the country with 24-hour navigation facilities along the entire stretch. It has been extended to Kozhikode by the National Waterways Act, 2016. The National Waterway 3 mainly passes through the previous Thiruvananthapuram–Shoranur canal.
The lake whitefish is a species of freshwater whitefish from North America. Lake whitefish are found throughout much of Canada and parts of the northern United States, including all of the Great Lakes. The lake whitefish is sometimes referred to as a "humpback" fish due to the small size of the head in relation to the length of the body. It is a valuable commercial fish, and also occasionally taken by sport fishermen. Smoked, refrigerated, vacuum-packed lake whitefish fillets are available in North American grocery stores. Other vernacular names used for this fish include Otsego bass, Sault whitefish, gizzard fish, common whitefish, eastern whitefish, Great Lakes whitefish, humpback whitefish, inland whitefish and whitefish.
Jean Bouillon was a Belgian marine biologist and expert on Hydrozoa.
Cordylophora is the sole genus of hydrozoans in the monotypic family Cordylophoridae.
Water transport in India has played a significant role in the country’s economy and is indispensable to foreign trade. India is endowed with an extensive network of waterways in the form of rivers, canals, backwaters, creeks and a long coastline accessible through the seas and oceans. It has the largest carrying capacity of any form of transport and is most suitable for carrying bulky goods over long distances.
The Federal Agency for Maritime and River Transport (Rosmorrechflot), is a federal executive body in Russian Federation. It is entrusted to manage state property, maintain transport security-related tasks and provide services in the field of maritime and inland waterway transport. It is under the jurisdiction of the Ministry of Transport of the Russian Federation.
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