Census of Marine Life It is the world's largest census, but hasn't been completed yet and probably never will be. The Census of Marine Life, an international project involving hundreds of researchers, has recorded some 185,000 different species so far, from tiny single-cell creatures to the blue whale. The majority of life on our planet swims or crawls in the oceans. The "Catalogue of the Seas" produced by the census won't be published until October. But much of the research can already be accessed in the scientific journal PloS ONE, published by the Public Library of Science, a non-profit organization of scientists. "This is the first time that all the information we have on the oceans can be found in a single publicly accessible source," Patricia Miloslavich of Universidad Simón Bolívar in Venezuela, one of the main authors of the census and the regional coordinator for the Caribbean, said in a statement.
Fish Breeding, Breeding Tropical Fish, Goldfish, and other Freshwater Fish Fish breeding is one of the most exciting and interesting aspects of being an aquarium keeper! Fish Breeding Contents Fish keepers start out with a few tropical fish or maybe some gold fish in a small aquarium. 15 Deadliest Beach Creatures Keep away from any of these 15 deadly creatures when you next visit the beach. 1. Portuguese Man-of-War Jellyfish Not a true jellyfish, the Portuguese Man-of-War is a siphonophore – a colony of organisms living together.
Texas Cichlid, Herichthys cyanoguttatus, Rio Grande Perch Fish Guide Named after the state where it originates, the Texas Cichlid is the only naturally occuring cichlid from the United States! The Texas Cichlid Herichthys cyanoguttatus (previously Cichlasoma cyanoguttatum) is the northern most occurring cichlid and the only cichlid native to waters of the United States. It is naturally found in the waters of southern Texas ( namely the Rio Grande) and northern Mexico. Though most commonly known as the Texas Cichlid, this fish is also named after its most famous river of origin and is thus also called the the Rio Grande Perch or Rio Grande Cichlid. Some sources also call it a Pearl Cichlid as well, but this is confusing as there is another well defined cichlid, Geophagus brasiliensis, that is more generally known as the Pearl Cichlid.
Ichthyology Ichthyology (from Greek: ἰχθύς, ikhthus, "fish"; and λόγος, logos, "study") is the branch of zoology devoted to the study of fish. This includes skeletal fish (Osteichthyes), cartilaginous fish (Chondrichthyes), and jawless fish (Agnatha). While a large number of species have been discovered and described, approximately 250 new species are officially described by science each year. According to FishBase, 32,200 species of fish had been described by March 2012. There are more fish species than the combined total of all other vertebrates: mammals, amphibians, reptiles and birds. Texas or Rio Grande Cichlid - Herichthys cyanoguttatus Scientific Name: Herichthys cyanoguttatus Synonym: Cichlasoma cyanoguttatum, Cichlasoma pavonaceum, Herichthys cyanoguttatum, Heros pavonaceus, Parapetenia cyanostigma Common Name: Pearl Cichlid, Rio Grande Cichlid, Rio Grande Perch, Texas Cichlid Family: Cichlidae Origin: Texas and northeast Mexico Adult Size: 12 inches (30 cm) Social: Aggressive and territorial Lifespan: 10+ years Tank Level: All Minimum Tank Size: 55 gallon Diet: Carnivore/Omnivore Breeding: Egg layer, open breeder Care: Intermediate pH: 6.5-7.5 Hardness: to 12 dGH Temperature: 68-75°F ( 20-24°C) Origin/Distribution Texas Cichlids are native to lakes and rivers in south Texas and northern Mexico, making them the most northern naturally occurring species of cichlid in the world. It's the only native cichlid in the US and amongst the first cichlids imported to Europe, having first been imported in 1912. Description Tankmates
Marine biology Only 29 percent of the world surface is land. The rest is ocean, home to the marine lifeforms. The oceans average nearly four kilometres in depth and are fringed with coastlines that run for 360,000 kilometres. A large proportion of all life on Earth exists in the ocean. Exactly how large the proportion is unknown, since many ocean species are still to be discovered. FishBase FishBase is a global species database of fish species (specifically finfish). It is the largest and most extensively accessed online database on adult finfish on the web. Over time it has "evolved into a dynamic and versatile ecological tool", widely cited in scholarly publications. FishBase provides comprehensive species data, including information on taxonomy, geographical distribution, biometrics and morphology, behaviour and habitats, ecology and population dynamics as well as reproductive, metabolic and genetic data. There is access to tools such as trophic pyramids, identification keys, biogeographical modelling and fishery statistics and there are direct species level links to information in other databases such as LarvalBase, GenBank, the IUCN Red List and the Catalog of Fishes. History
Mantis shrimp Called "sea locusts" by ancient Assyrians, "prawn killers" in Australia and now sometimes referred to as "thumb splitters" – because of the animal's ability to inflict painful gashes if handled incautiously – mantis shrimp sport powerful claws that they use to attack and kill prey by spearing, stunning, or dismemberment. Although it only happens rarely, some larger species of mantis shrimp are capable of breaking through aquarium glass with a single strike from this weapon. Ecology These aggressive and typically solitary sea creatures spend most of their time hiding in rock formations or burrowing intricate passageways in the sea bed. They either wait for prey to chance upon them or, unlike most crustaceans, at times they hunt, chase, and kill prey.
List of freshwater aquarium fish species A vast number of species of fish have been successfully kept in the home freshwater aquarium. This list gives some examples of the most commonly kept species. Bichirs and reedfish Catfish Characins and other characiformes Cichlids A Tour of China in Winter, Part 1c: An Arcade of Aquarium Shops in Beijing A Tour of China in Winter Part 1c An Arcade of Aquarium Shops in Beijing By Howard Norfolk Original to Aquarticles.com Introduction China is one of those countries where all shops selling the same thing group together in the same building, street or district.
How to take care of apple snails: food, housing and breeding. Apple snails are easy animals that do well in a common aquarium or a pond. They can live together with most fish species and they can be used to keep the aquarium clean of algae. Not all apple snail species are a good choice for aquaria as their voracious appetite for aquatic vegetation is often not desired and the bigger species can cause problems with the water quality in smaller tanks.