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Diagnostic Description

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Generally silvery overlaid with brassy tones; back bluish or olivaceous; lower head and lower anterior part of body tinged with red; sides with series of brown speckles which form rough narrow vertical bars; pectorals plain, other fins usually reddish (Ref. 6885).
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Recorder
Cristina V. Garilao
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Life Cycle

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Viviparous, female carries the developing young (Ref. 205).
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Recorder
Susan M. Luna
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Morphology

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Dorsal spines (total): 9 - 11; Dorsal soft rays (total): 24 - 28; Analspines: 3; Analsoft rays: 26 - 32
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Cristina V. Garilao
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Trophic Strategy

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Demersal species found in the intertidal zone (Ref. 102863). Adults occur usually in sand beaches in surf (Ref. 2850).
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Rubyann Robelle Polido
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Biology

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Adults occur usually in sand beaches in surf (Ref. 2850). Viviparous, female carries the developing young (Ref. 205).
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Rainer Froese
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Importance

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gamefish: yes
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Amphistichus koelzi

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The Calico surfperch (Amphistichus koelzi) is a species of surfperch native to the eastern Pacific Ocean. They are primarily found along the west coast of the United States (California, Oregon, and Washington).[1] The specific name honours the American fisheries biologist Walter Koelz (1895-1989).[3]
According to the California Department of Fish and Game, Calico surfperch are distinguished from other surfperches by a noticeable notch between the dorsal soft and hard rays. Further, the dorsal hard and soft rays are of equal length and sides often have broken bars and spots on each side. The usual length is around 30 cm (12 inches). [4]

References

  1. ^ a b Starnes, W.C. (2010). "Amphistichus koelzi". The IUCN Red List of Threatened Species. 2010: e.T154728A4619455. doi:10.2305/IUCN.UK.2010-4.RLTS.T154728A4619455.en.
  2. ^ Froese, Rainer; Pauly, Daniel (eds.) (2018). "Amphistichus koelzi" in FishBase. June 2018 version.
  3. ^ Christopher Scharpf & Kenneth J. Lazara (29 March 2018). "Subseries OVALENTARIA: Incertae sedis". The ETYFish Project Fish Name Etymology Database. Christopher Scharpf and Kenneth J. Lazara. Retrieved 25 September 2018.
  4. ^ "Common Surfperches of California". California Department of Fish and Game.
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Amphistichus koelzi: Brief Summary

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The Calico surfperch (Amphistichus koelzi) is a species of surfperch native to the eastern Pacific Ocean. They are primarily found along the west coast of the United States (California, Oregon, and Washington). The specific name honours the American fisheries biologist Walter Koelz (1895-1989).
According to the California Department of Fish and Game, Calico surfperch are distinguished from other surfperches by a noticeable notch between the dorsal soft and hard rays. Further, the dorsal hard and soft rays are of equal length and sides often have broken bars and spots on each side. The usual length is around 30 cm (12 inches).

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