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The three-spined stickleback is a secondary intermediate host for the hermaphroditic parasite Schistocephalus solidus, a tapeworm of fish and fish-eating birds. The tapeworm passes into sticklebacks through its first intermediate hosts, cyclopoid copepods, when these are eaten by the fish.
Gasterosteus doryssus is an extinct species of freshwater stickleback fish that inhabited inland freshwater habitats of the North American Great Basin during the Miocene.It is known from thousands of articulated fossil skeletons, comprising various age classes and two different ecomorphs, discovered in diatomite deposits of the Truckee Formation near Hazen, Nevada.
Gasterosteus aculeatus Linnaeus, 1758 (Three-spined stickleback) †Gasterosteus crenobiontus Băcescu & R. Mayer, 1956 (Techirghiol stickleback) Gasterosteus islandicus Sauvage, 1874 (Iceland stickleback) Gasterosteus microcephalus Girard, 1854 (Smallhead stickleback) Gasterosteus nipponicus Higuchi, Sakai & A. Goto, 2014 [1]
The Icelandic threespine stickleback (Gasterosteus islandicus) 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, [2] though several authorities offer it full species status. [3] [4] It was first described by French biologist Henri Émile Sauvage ...
The only exception is the far larger fifteen-spined stickleback (Spinachia spinachia), which can reach 22 cm (approx. 8.8 inches). [12] Body form varies with habitat: sticklebacks in shallow lakes have developed a deep body specialized to enable feeding on benthic invertebrates, whilst those in deep oligotrophic lakes have adapted to feed on ...
Prevalence — the proportion of host population infected — in naturally infected populations of the first intermediate hosts is likely low. [5] Conversely, in populations where Schistocephalus solidus infects the second intermediate host (three-spined stickleback) it can reach high prevalence, up to 93% in both European and North American populations [6] [7]
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]
The following list of known freshwater fish species, subspecies, and hybrids occurring in Washington state is taken from Wydoski and Whitney(2003). Some scientific names have been updated or corrected. Trout nomenclature follows Behnke et al.(2002). Asterisks denote introduced fishes.