Smallhead stickleback

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Smallhead stickleback
Gasterosteus microcephalus.JPG
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Scorpaeniformes
Family: Gasterosteidae
Genus: Gasterosteus
Species:
G. microcephalus
Binomial name
Gasterosteus microcephalus
Girard, 1854
Synonyms
  • Gasterosteus aculeatus microcephalus Girard, 1854

The smallhead stickleback (Gasterosteus microcephalus), or resident threespined stickleback, is a fish species, which widespread in the basin of the Pacific Ocean: Japan, also Mexico. Freshwater demersal fish, up to 5.5 cm (2.2 in) length. Habits small streams, where feeds on aquatic insects and other invertebrates. [1] This taxon is regarded by some authorities as a synonym of the three-spined stickleback (G. aculeatus), [2] and others treat it as a subspecies of the three-spined stickleback, G. a. microcephalus. [3]

Related Research Articles

<span class="mw-page-title-main">Gasterosteoidei</span> Order of fishes

Gasterosteoidei is a suborder of ray-finned fishes that includes the sticklebacks and relatives, the 5th edition of Fishes of the World classifies this suborder within the order Scorpaeniformes.

<span class="mw-page-title-main">Stickleback</span> Family of fish

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<span class="mw-page-title-main">Three-spined stickleback</span> Species of fish

The three-spined stickleback is a fish native to most inland and coastal waters north of 30°N. It has long been a subject of scientific study for many reasons. It shows great morphological variation throughout its range, ideal for questions about evolution and population genetics. Many populations are anadromous and very tolerant of changes in salinity, a subject of interest to physiologists. It displays elaborate breeding behavior and it can be social making it a popular subject of inquiry in fish ethology and behavioral ecology. Its antipredator adaptations, host-parasite interactions, sensory physiology, reproductive physiology, and endocrinology have also been much studied. Facilitating these studies is the fact that the three-spined stickleback is easy to find in nature and easy to keep in aquaria.

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<span class="mw-page-title-main">Ninespine stickleback</span> Species of fish

The ninespine stickleback, also called the ten-spined stickleback, is a freshwater species of fish in the family Gasterosteidae that inhabits temperate waters. It is widely but locally distributed throughout Eurasia and North America. Despite its name, the number of spines can vary from 8 to 12.

<span class="mw-page-title-main">Lake Yonozero</span> Lake in Murmansk Oblast, Russia

Lake Yonozero is a large freshwater lake on the Kola Peninsula, Murmansk Oblast, Russia. It has an area of 94.4 km2 (36.4 sq mi). Numerous small, uninhabited islands are found in the lake. Varzina River flows from the lake. Lake Yonozero marks the northern border of the Murmansk Tundra Reserve. The three-spined stickleback can be found in the lake, as well as in other surrounding lakes and rivers in eastern Murman.

<span class="mw-page-title-main">Brook stickleback</span> Species of fish

The brook stickleback is a small freshwater fish that is distributed across the US and Canada. It grows to a length of about 2 inches. It occupies the northern part of the eastern United States, as well as the southern half of Canada. Small populations are scattered throughout the Mississippi-Great Lakes basin extending to Colorado, New Mexico, Kentucky, Tennessee, etc., though some of these areas are not native to the species. This small fish inhabits clear, cool streams and lakes. They eat small invertebrates, algae, insect larvae, and occasionally their own eggs. They are also preyed upon by smallmouth bass and northern pike. Feedin time is usually dawn and sunset. The brook stickleback does have active competition mostly from minnows, but feeding times are different, along with diet. Spawning occurs in midsummer. Males secure a territory, build a nest, and mate with females. Males provide protection for the eggs, ward off predators, and usually die later in the season. This is considered an annual species. The nests are built out of aquatic grasses. Though the brook stickleback is not considered a threatened species, deforesting and changing waters are altering ecosystems of the species. Harvesting of trees around riparian environments is having a large effect of the stream ecosystem where the brook stickleback resides.

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Schistocephalus solidus is a tapeworm of fish, fish-eating birds and rodents. This hermaphroditic parasite belongs to the Eucestoda subclass, of class Cestoda. This species has been used to demonstrate that cross-fertilization produces a higher infective success rate than self-fertilization.

<i>Gasterosteus</i> Genus of fishes

Gasterosteus is a genus of ray-finned fishes belonging to the family Gasterosteidae, the sticklebacks. These fishes are found in freshwater, brackish water and marine habitats in the Holarctic region.

<span class="mw-page-title-main">Blackspotted stickleback</span> Species of fish

The blackspotted stickleback is species of ray-finned fish belonging to the family Gasterosteidae, the sticklebacks. This fish is found in the western Atlantic from the coasts of Newfoundland (Canada) to Massachusetts. This is a benthopelagic species of marine and brackish waters, rarely entering freshwater, which remains near the shore. It is frequently associated with floating vegetation. The male builds a nest, in which the females deposit eggs and the male guards and aerates them. It is a small fish which reaches a maximum published total length of 7.6 cm (3.0 in), although 3.5 cm (1.4 in) is more typical. The specific name honors Richard H. Wheatland who was the Cabinet Keeper, for the Essex County Natural History Society of Salem, Massachusetts and who collected type of this species in 1859.

The Techirghiol stickleback was an endemic fish species, found in the streams inflowing to the coastal hypersaline Lake Techirghiol in southern Romania. It was a freshwater benthopelagic fish, up to 6.5 centimetres (2.6 in) SL in length. It is considered extinct due to hybridization with the three-spined stickleback following irrigation which allowed the two taxa to mix by diluting the hypersaline water barrier which separated them. The last known occurrence of the species was in the 1960s.

<i>Apeltes</i> Genus of fishes

Apeltes is a monospecific genus old ray-finned fish belonging to the family Gasterosteidae, the sticklebacks. The only species in the genus is Apeltes quadracus, the fourspine stickleback or bloody stickleback, which lives in freshwater, brackish and benthopelagic environments of the northwestern Atlantic Ocean between Newfoundland and South Carolina.

Southern California Coastal–Baja California is a freshwater ecoregion in Western North America. It covers portions of central and southern California and west of the Coast Ranges as well as most of Mexico's Baja California Peninsula, extending from the southern end of Monterey Bay to the southern tip of the Baja California Peninsula.

<span class="mw-page-title-main">Icelandic threespine stickleback</span> Species of fish

The Icelandic threespine stickleback is a freshwater fish, and one of the few vertebrate species endemic to Iceland. In some literature it is considered as a subspecies of G. aculeatus, though several authorities offer it full species status. It was first described by French biologist Henri Émile Sauvage in 1874.

<i>Pungitius laevis</i> Species of fish

Pungitius laevis, commonly known as smoothtail ninespine stickleback, is a species of freshwater fish of the family Gasterosteidae. It is distributed in temperate brackish benthopelagic waters of coastal western Europe.

Gasterosteus nipponicus is a species of ray-finned fish belonging to the family Gasterosteidae, the sticklebacks. This species is found in the northwestern Pacific Ocean.

References

  1. Froese, Rainer; Pauly, Daniel (eds.) (2022). "Gasterosteus microcephalus" in FishBase . August 2022 version.
  2. Eschmeyer, William N.; Fricke, Ron & van der Laan, Richard (eds.). "Species in the genus Gasterosteus". Catalog of Fishes . California Academy of Sciences . Retrieved 28 November 2022.
  3. Christopher Scharpf. "Checklist of Freshwater Fishes of North America, Including Subspecies and Undescribed Forms". North American Native Fishes Association. Retrieved 28 November 2022.