|
Stellifer Venezuelae
''Stellifer'' is a genus of fish in the family Sciaenidae, the drums and croakers. It is found in New World waters.Chao, N. L. (2001)Two new species of ''Stellifer'' from inshore waters of the eastern Pacific, with a redescription of ''S. ephelis'' (Perciformes: Sciaenidae).''Rev. Biol. Trop.'' 49 Supl. 1 67-80. Many species are known commonly as stardrums. In the Americas, this is one of the most diverse genera among the sciaenids. Its members can be found in the tropics and subtropics and in shallow and deeper waters. Some are semianadromous, spawning in the ocean near estuaries so the eggs and young will be taken into lower-salinity environments on the tides.Pombo, M., et al. (2012)Population biology of ''Stellifer rastrifer'', ''S. brasiliensis'' and ''S. stellifer'' in Caraguatatuba Bay, northern coast of São Paulo, Brazil.''Brazilian Journal of Oceanography'' 60(3) 271-82. The genus belongs to the subfamily Stelliferinae, whose members have double-chambered swim bladders ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stellifer Lanceolatus
''Stellifer'' is a genus of fish in the family Sciaenidae, the drums and croakers. It is found in New World waters.Chao, N. L. (2001)Two new species of ''Stellifer'' from inshore waters of the eastern Pacific, with a redescription of ''S. ephelis'' (Perciformes: Sciaenidae).''Rev. Biol. Trop.'' 49 Supl. 1 67-80. Many species are known commonly as stardrums. In the Americas, this is one of the most diverse genera among the sciaenids. Its members can be found in the tropics and subtropics and in shallow and deeper waters. Some are semianadromous, spawning in the ocean near estuaries so the eggs and young will be taken into lower-salinity environments on the tides.Pombo, M., et al. (2012)Population biology of ''Stellifer rastrifer'', ''S. brasiliensis'' and ''S. stellifer'' in Caraguatatuba Bay, northern coast of São Paulo, Brazil.''Brazilian Journal of Oceanography'' 60(3) 271-82. The genus belongs to the subfamily Stelliferinae, whose members have double-chambered swim bladders ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Otolith
An otolith ( grc-gre, ὠτο-, ' ear + , ', a stone), also called statoconium or otoconium or statolith, is a calcium carbonate structure in the saccule or utricle of the inner ear, specifically in the vestibular system of vertebrates. The saccule and utricle, in turn, together make the ''otolith organs''. These organs are what allows an organism, including humans, to perceive linear acceleration, both horizontally and vertically (gravity). They have been identified in both extinct and extant vertebrates. Counting the annual growth rings on the otoliths is a common technique in estimating the age of fish. Description Endolymphatic infillings such as otoliths are structures in the saccule and utricle of the inner ear, specifically in the vestibular labyrinth of all vertebrates (fish, amphibians, reptiles, mammals and birds). In vertebrates, the saccule and utricle together make the ''otolith organs''. Both statoconia and otoliths are used as gravity, balance, movement, and d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cumacea
Cumacea is an order of small marine crustaceans of the superorder Peracarida, occasionally called hooded shrimp or comma shrimp. Their unique appearance and uniform body plan makes them easy to distinguish from other crustaceans. They live in soft-bottoms such as mud and sand, mostly in the marine environment. There are more than 1,500 species of cumaceans formally described. The species diversity of Cumacea increases with depth. Anatomy Cumaceans have a strongly enlarged cephalothorax with a carapace, a slim abdomen, and a forked tail. The length of most species varies from . The carapace of a typical cumacean is composed of several fused dorsal head parts and the first three somites of the thorax. This carapace encloses the appendages that serve for respiration and feeding. In most species, there are two eyes at the front side of the head shield, often merged into a single dorsal eye lobe. The five posterior somites of the thorax form the pereon. The pleon (abdomen) consists ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Isopoda
Isopoda is an order of crustaceans that includes woodlice and their relatives. Isopods live in the sea, in fresh water, or on land. All have rigid, segmented exoskeletons, two pairs of antennae, seven pairs of jointed limbs on the thorax, and five pairs of branching appendages on the abdomen that are used in respiration. Females brood their young in a pouch under their thorax. Isopods have various feeding methods: some eat dead or decaying plant and animal matter, others are grazers, or filter feeders, a few are predators, and some are internal or external parasites, mostly of fish. Aquatic species mostly live on the seabed or bottom of freshwater bodies of water, but some taxa can swim for a short distance. Terrestrial forms move around by crawling and tend to be found in cool, moist places. Some species are able to roll themselves into a ball as a defense mechanism or to conserve moisture. There are over 10,000 identified species of isopod worldwide, with around 4,50 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chaetognatha
The Chaetognatha or chaetognaths (meaning ''bristle-jaws'') are a phylum of predatory marine worms that are a major component of plankton worldwide. Commonly known as arrow worms, about 20% of the known Chaetognatha species are benthic, and can attach to algae and rocks. They are found in all marine waters, from surface tropical waters and shallow tide pools to the deep sea and polar regions. Most chaetognaths are transparent and are torpedo shaped, but some deep-sea species are orange. They range in size from . There are more than 120 modern species assigned to over 20 genera. Despite the limited diversity of species, the number of individuals is large. Arrow worms are usually considered a type of protostome that do not belong to either Ecdysozoa or Lophotrochozoa. Anatomy Chaetognaths are transparent or translucent dart-shaped animals covered by a cuticle. The body is divided into a distinct head, trunk, and tail. There are between four and fourteen hooked, grasping spines ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amphipoda
Amphipoda is an order of malacostracan crustaceans with no carapace and generally with laterally compressed bodies. Amphipods range in size from and are mostly detritivores or scavengers. There are more than 9,900 amphipod species so far described. They are mostly marine animals, but are found in almost all aquatic environments. Some 1,900 species live in fresh water, and the order also includes the terrestrial sandhoppers such as ''Talitrus saltator''. Etymology and names The name ''Amphipoda'' comes, via New Latin ', from the Greek roots 'on both/all sides' and 'foot'. This contrasts with the related Isopoda, which have a single kind of thoracic leg. Particularly among anglers, amphipods are known as ''freshwater shrimp'', ''scuds'', or ''sideswimmers''. Description Anatomy The body of an amphipod is divided into 13 segments, which can be grouped into a head, a thorax and an abdomen. The head is fused to the thorax, and bears two pairs of antennae and one pair of s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sergestoidea
Sergestoidea is a superfamily of prawns, divided into two families – the Luciferidae and the Sergestidae Sergestidae is a family of prawns which have lived since at least the Middle Jurassic (Bajocian/Bathonian). It contains the following genera: *'' Acetes'' H. Milne-Edwards, 1830 *'' Allosergestes'' Judkins & Kensley, 2008 *'' Casertanus'' Bravi ' .... References Dendrobranchiata {{decapod-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Acartia Lilljeborgii
''Acartia'' is a genus of marine calanoid copepods. They are epipelagic, estuarine, zooplanktonic found throughout the oceans of the world, primarily in temperate regions. Classification This genus contains the majority of species in the family Acartiidae: *'' Acartia adriatica'' Steuer, 1910 *''Acartia amboinensis'' Carl, 1907 *'' Acartia arbruta'' Smith ''et al''., 2021 *'' Acartia australis'' Farran, 1936 *''Acartia bacorehuisensis'' Zamora-Sánchez & Gómez-Aguirre, 1986 *'' Acartia bermudensis'' Esterly, 1911 *'' Acartia bifilosa'' (Giesbrecht, 1881) *''Acartia bilobata'' Abraham, 1970 *'' Acartia bispinosa'' Carl, 1907 *''Acartia bowmani'' Abraham, 1976 *''Acartia cagayanensis'' Sakaguchi & Ueda, 2020 *''Acartia californiensis'' Trinast, 1976 *''Acartia centrura'' Giesbrecht, 1889 *''Acartia chilkaensis'' Sewell, 1919 *''Acartia clausi'' Giesbrecht, 1889 *''Acartia danae'' Giesbrecht, 1889 *''Acartia denticornis'' Brady, 1883 *''Acartia discaudata'' (Giesbrecht, 1882) * ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Copepod
Copepods (; meaning "oar-feet") are a group of small crustaceans found in nearly every freshwater and saltwater habitat (ecology), habitat. Some species are planktonic (inhabiting sea waters), some are benthos, benthic (living on the ocean floor), a number of species have parasitic phases, and some continental species may live in limnoterrestrial habitats and other wet terrestrial places, such as swamps, under leaf fall in wet forests, bogs, springs, ephemeral ponds, and puddles, damp moss, or water-filled recesses (phytotelmata) of plants such as bromeliads and pitcher plants. Many live underground in marine and freshwater caves, sinkholes, or stream beds. Copepods are sometimes used as Ecological indicator, biodiversity indicators. As with other crustaceans, copepods have a larval form. For copepods, the egg hatches into a Crustacean larvae#Nauplius, nauplius form, with a head and a tail but no true thorax or abdomen. The larva molts several times until it resembles the adult an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mysidopsis Coelhoi
''Mysidopsis'' is a genus of mysid shrimps in the family Mysidae. The sensitivity of these shrimps to water quality makes them suitable for bioassays. ''Mysidopsis bahia'' and ''Mysidopsis almyra'', which are used frequently to test for pesticides and other toxic substances, are now classified as ''Americamysis bahia'' and ''Americamysis almyra''. Species The World Register of Marine Species lists the following species: *'' Mysidopsis acuta'' Hansen, 1913 *'' Mysidopsis angusta'' G.O. Sars, 1864 *'' Mysidopsis ankeli'' Brattegard, 1973 *'' Mysidopsis arenosa'' Brattegard, 1974 *'' Mysidopsis badius'' Modlin, 1987 *'' Mysidopsis bispinosa'' O. Tattersall, 1969 *'' Mysidopsis bispinulata'' Brattegard, 1974 *'' Mysidopsis brattegarti'' Băcescu & Gleye, 1979 *'' Mysidopsis brattstroemi'' Brattegard, 1969 *'' Mysidopsis buffaloensis'' Wooldridge, 1988 *'' Mysidopsis cachuchoensis'' San Vicente, Frutos & Sorbe, 2012 *'' Mysidopsis californica'' W. Tattersall, 1932 *'' Mysidopsis c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
.jpg "Click for more on -> Isopoda")
