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Pomacentrus Amboinensis
''Pomacentrus amboinensis'' is a damselfish from the Western Pacific. It occasionally makes its way into the aquarium trade. It grows to a size of 9 cm in length. They live in small groups of one mature male that guards a nest site on the seafloor and several females. Once settled, females rarely migrate. New juveniles can usually join groups easily. As they reach sexual maturity, they usually lose their "eyespot" on their dorsal fin. ''P. amboinensis'' is a protogynous species - all individuals start out as females and later can turn into males. However some males retain the appearance of juveniles, probably to sneak into the harems of dominant males. This species has been shown to have colour vision Color vision, a feature of visual perception, is an ability to perceive differences between light composed of different wavelengths (i.e., different spectral power distributions) independently of light intensity. Color perception is a part of t ... using behavioral exper ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pieter Bleeker
Pieter Bleeker (10 July 1819 – 24 January 1878) was a Dutch medical doctor, ichthyologist, and herpetologist. He was famous for the ''Atlas Ichthyologique des Indes Orientales Néêrlandaises'', his monumental work on the fishes of East Asia published between 1862 and 1877. Life and work Bleeker was born on 10 July 1819 in Zaandam. He was employed as a medical officer in the Royal Netherlands East Indies Army from 1842 to 1860, (in French). stationed in the Dutch East Indies (now Indonesia). During that time, he did most of his ichthyology work, besides his duties in the army. He acquired many of his specimens from local fishermen, but he also built up an extended network of contacts who would send him specimens from various government outposts throughout the islands. During his time in Indonesia, he collected well over 12,000 specimens, many of which currently reside at the Naturalis Biodiversity Center in Leiden. Bleeker corresponded with Auguste Duméril of Paris. His wor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pomacentrus Amboinensis Juvenile
''Pomacentrus'' is a genus of marine damselfish in the family Pomacentridae. These fish inhabit tropical locations and are often captured or bred as aquarium fish. Species There are currently 76 recognized species in this genus:Gerald R. Allen, Mark V. Erdmann and Nur I. Hidayat. 2018. ''Pomacentrus bellipictus'', A New Microendemic Species of Damselfish (Pisces: Pomacentridae) from the Fakfak Peninsula, West Papua, Indonesia. ''Journal of the Ocean Science Foundation.'' 30, 1-10. ''oceansciencefoundation.org/josf30a.html'' See also *Damselfish Damselfish are those within the subfamilies Abudefdufinae, Chrominae, Lepidozyginae, Pomacentrinae, and Stegastenae within the family Pomacentridae. Most species within this group are relatively small, with the largest species being about 30 ... References Pomacentrinae Marine fish genera Taxa named by Bernard Germain de Lacépède {{Pomacentridae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Damselfish
Damselfish are those within the subfamilies Abudefdufinae, Chrominae, Lepidozyginae, Pomacentrinae, and Stegastenae within the family Pomacentridae. Most species within this group are relatively small, with the largest species being about 30cm (12 in) in length. Most damselfish species exist only in marine environments, but a few inhabit brackish or fresh water. These fish are found globally in tropical, subtropical, and temperate waters. Habitat in tropical rocky or coral reefs, and many of those are kept as marine aquarium pets. Their diets include small crustaceans, plankton, and algae. However, a few live in fresh and brackish waters, such as the freshwater damselfish, or in warm subtropical climates, such as the large orange Garibaldi, which inhabits the coast of southern California and the Pacific Mexican coast. Foraging The domino damselfish '' D. albisella'' spends the majority (greater than 85%) of its daytime hours foraging. Larger individuals typically fo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pacific
The Pacific Ocean is the largest and deepest of Earth's five oceanic divisions. It extends from the Arctic Ocean in the north to the Southern Ocean (or, depending on definition, to Antarctica) in the south, and is bounded by the continents of Asia and Oceania in the west and the Americas in the east. At in area (as defined with a southern Antarctic border), this largest division of the World Ocean—and, in turn, the hydrosphere—covers about 46% of Earth's water surface and about 32% of its total surface area, larger than Earth's entire land area combined .Pacific Ocean . '' Britannica Concise.'' 2008: Encyclopædia Britannica, Inc. The centers of both the |
Protogynous
Sequential hermaphroditism (called dichogamy in botany) is a type of hermaphroditism In reproductive biology, a hermaphrodite () is an organism that has both kinds of reproductive organs and can produce both gametes associated with male and female sexes. Many taxonomic groups of animals (mostly invertebrates) do not have s ... that occurs in many fish, gastropods, and plants. Sequential hermaphroditism occurs when the individual changes its sex at some point in its life. In particular, a sequential hermaphrodite produces eggs (female gametes) and sperm (male gametes) at different stages in life. Species that can undergo these changes from one sex to another do so as a normal event within their reproductive cycle that is usually cued by either social structure or the achievement of a certain age or size. In animals, the different types of change are male to female (protandry or protandrous hermaphroditism), female to male (protogyny or protogynous hermaphroditism), bidirec ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Colour Vision
Color vision, a feature of visual perception, is an ability to perceive differences between light composed of different wavelengths (i.e., different spectral power distributions) independently of light intensity. Color perception is a part of the larger visual system and is mediated by a complex process between neurons that begins with differential stimulation of different types of photoreceptors by light entering the eye. Those photoreceptors then emit outputs that are propagated through many layers of neurons and then ultimately to the brain. Color vision is found in many animals and is mediated by similar underlying mechanisms with common types of biological molecules and a complex history of evolution in different animal taxa. In primates, color vision may have evolved under selective pressure for a variety of visual tasks including the foraging for nutritious young leaves, ripe fruit, and flowers, as well as detecting predator camouflage and emotional states in other prim ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pomacentrus
''Pomacentrus'' is a genus of marine damselfish in the family Pomacentridae. These fish inhabit tropical locations and are often captured or bred as aquarium fish. Species There are currently 76 recognized species in this genus:Gerald R. Allen, Mark V. Erdmann and Nur I. Hidayat. 2018. ''Pomacentrus bellipictus'', A New Microendemic Species of Damselfish (Pisces: Pomacentridae) from the Fakfak Peninsula, West Papua, Indonesia. ''Journal of the Ocean Science Foundation.'' 30, 1-10. ''oceansciencefoundation.org/josf30a.html'' See also *Damselfish Damselfish are those within the subfamilies Abudefdufinae, Chrominae, Lepidozyginae, Pomacentrinae, and Stegastenae within the family Pomacentridae. Most species within this group are relatively small, with the largest species being about ... References Pomacentrinae Marine fish genera Taxa named by Bernard Germain de Lacépède {{Pomacentridae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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