Overview

Comprehensive Description

Description

  Common names: midshipman (English), sapo (Espanol), pez-fraile (Espanol)
 
Porichthys greenei Gilbert & Starks, 1904

Shorthead midshipman,     Greene's midshipman,     Grumpy midshipman


Eye small; teeth like canines; 1 solid spine on opercle; no subopercular spines;  7 (7-8) rakers on lower limb of first gill arch; first dorsal fin 2 solid spines, separate from second dorsal fin; second dorsal 35-39 rays; anal rays 35 (33-37); pectoral round, 14-17 rays; 10 tail rays; dorsal and anal fins broadly joined to tail; no scales; 4 lateral lines on body with light organs; lower lateral line ends ~ 12 pores behind same line of light organs .


5 (4-6) dark saddles on back; dorsal, anal and tail fins clear, no dark borders or spots.

Size: 8.5 cm.

Habitat: sandy and muddy bottoms.

Depth: 5-30 m.

Southern Mexico to Colombia.
   
Creative Commons Attribution Non Commercial 3.0 (CC BY-NC 3.0)

© Shorefishes of the tropical eastern Pacific online information system. www.stri.org/sftep

Source: Shorefishes of the Tropical Eastern Pacific Online Information System

Trusted

Article rating from 0 people

Default rating: 2.5 of 5

Biology

Found in shallow waters up to depths of 27 m (Ref. 9277).
Creative Commons Attribution Non Commercial 3.0 (CC BY-NC 3.0)

© FishBase

Source: FishBase

Trusted

Article rating from 0 people

Default rating: 2.5 of 5

Distribution

Range Description

This species is endemic to the Eastern Central Pacific, and is found from the Gulf of Tehuantepec, Mexico to eastern Panama.
Creative Commons Attribution Non Commercial Share Alike 3.0 (CC BY-NC-SA 3.0)

© International Union for Conservation of Nature and Natural Resources

Source: IUCN

Trusted

Article rating from 0 people

Default rating: 2.5 of 5

Zoogeography

See Map (including site records) of Distribution in the Tropical Eastern Pacific 
 
Global Endemism: All species, East Pacific endemic, Tropical Eastern Pacific (TEP) endemic

Regional Endemism: All species, TEP endemic, Continental TEP endemic, Mexican + Panamic provinces endemic, Continent, Continent only

Residency: Resident

Climate Zone: Northern Tropical (Mexican Province to Nicaragua + Revillagigedos), Equatorial (Costa Rica to Ecuador + Galapagos, Clipperton, Cocos, Malpelo)
Creative Commons Attribution Non Commercial 3.0 (CC BY-NC 3.0)

© Shorefishes of the tropical eastern Pacific online information system. www.stri.org/sftep

Source: Shorefishes of the Tropical Eastern Pacific Online Information System

Trusted

Article rating from 0 people

Default rating: 2.5 of 5

Eastern Central Pacific: Gulf of Tehuantepec, Mexico to Panama.
Creative Commons Attribution Non Commercial 3.0 (CC BY-NC 3.0)

© FishBase

Source: FishBase

Trusted

Article rating from 0 people

Default rating: 2.5 of 5

Eastern Pacific.
Creative Commons Attribution Non Commercial Share Alike 3.0 (CC BY-NC-SA 3.0)

© FishWise Professional

Source: FishWise Professional

Trusted

Article rating from 0 people

Default rating: 2.5 of 5

Depth

Depth Range (m): 5 (S) - 30 (S)
Creative Commons Attribution Non Commercial 3.0 (CC BY-NC 3.0)

© Shorefishes of the tropical eastern Pacific online information system. www.stri.org/sftep

Source: Shorefishes of the Tropical Eastern Pacific Online Information System

Trusted

Article rating from 0 people

Default rating: 2.5 of 5

Physical Description

Morphology

Size

Length max (cm): 8.5 (S)
Creative Commons Attribution Non Commercial 3.0 (CC BY-NC 3.0)

© Shorefishes of the tropical eastern Pacific online information system. www.stri.org/sftep

Source: Shorefishes of the Tropical Eastern Pacific Online Information System

Trusted

Article rating from 0 people

Default rating: 2.5 of 5

Size

Maximum size: 77 mm SL
Creative Commons Attribution Non Commercial Share Alike 3.0 (CC BY-NC-SA 3.0)

© FishWise Professional

Source: FishWise Professional

Trusted

Article rating from 0 people

Default rating: 2.5 of 5

Max. size

7.7 cm SL (male/unsexed; (Ref. 9277))
Creative Commons Attribution Non Commercial 3.0 (CC BY-NC 3.0)

© FishBase

Source: FishBase

Trusted

Article rating from 0 people

Default rating: 2.5 of 5

Ecology

Habitat

Habitat and Ecology

Habitat and Ecology
This species is found in shallow waters over soft substrate (Collette 1995).

Systems
  • Marine
Creative Commons Attribution Non Commercial Share Alike 3.0 (CC BY-NC-SA 3.0)

© International Union for Conservation of Nature and Natural Resources

Source: IUCN

Trusted

Article rating from 0 people

Default rating: 2.5 of 5

Environment

demersal; marine; depth range ? - 27 m (Ref. 9277)
Creative Commons Attribution Non Commercial 3.0 (CC BY-NC 3.0)

© FishBase

Source: FishBase

Trusted

Article rating from 0 people

Default rating: 2.5 of 5

Depth range based on 29 specimens in 1 taxon.
Water temperature and chemistry ranges based on 1 sample.

Environmental ranges
  Depth range (m): 1 - 200
  Temperature range (°C): 23.629 - 23.629
  Nitrate (umol/L): 16.805 - 16.805
  Salinity (PPS): 34.631 - 34.631
  Oxygen (ml/l): 2.460 - 2.460
  Phosphate (umol/l): 1.485 - 1.485
  Silicate (umol/l): 12.680 - 12.680

Graphical representation

Depth range (m): 1 - 200
 
Note: this information has not been validated. Check this *note*. Your feedback is most welcome.

Trusted

Article rating from 0 people

Default rating: 2.5 of 5

Salinity: Brackish, Freshwater

Inshore/Offshore: Inshore, Inshore Only

Water Column Position: Bottom, Bottom only

Habitat: Soft bottom (mud, sand,gravel, beach, estuary & mangrove), Soft bottom only, Mud, Sand & gravel, Estuary

FishBase Habitat: Demersal
Creative Commons Attribution Non Commercial 3.0 (CC BY-NC 3.0)

© Shorefishes of the tropical eastern Pacific online information system. www.stri.org/sftep

Source: Shorefishes of the Tropical Eastern Pacific Online Information System

Trusted

Article rating from 0 people

Default rating: 2.5 of 5

Trophic Strategy

Feeding

Feeding Group: Carnivore

Diet: mobile benthic crustacea (shrimps/crabs), mobile benthic gastropods/bivalves, bony fishes
Creative Commons Attribution Non Commercial 3.0 (CC BY-NC 3.0)

© Shorefishes of the tropical eastern Pacific online information system. www.stri.org/sftep

Source: Shorefishes of the Tropical Eastern Pacific Online Information System

Trusted

Article rating from 0 people

Default rating: 2.5 of 5

Life History and Behavior

Reproduction

Egg Type: Benthic, No pelagic larva, No pelagic phase
Creative Commons Attribution Non Commercial 3.0 (CC BY-NC 3.0)

© Shorefishes of the tropical eastern Pacific online information system. www.stri.org/sftep

Source: Shorefishes of the Tropical Eastern Pacific Online Information System

Trusted

Article rating from 0 people

Default rating: 2.5 of 5

Conservation

Conservation Status

IUCN Red List Assessment


Red List Category
LC
Least Concern

Red List Criteria

Version
3.1

Year Assessed
2010

Assessor/s
Collette, B., Acero, A., Betancur, R., Cotto, A. & Rojas, P.

Reviewer/s
Carpenter, K., Polidoro, B. & Livingstone, S. (Global Marine Species Assessment Team)

Contributor/s

Justification
This species is widespread in the Eastern Pacific region. No major threats to this species are known, and there is no current indication of population decline. It is listed as Least Concern.
Creative Commons Attribution Non Commercial Share Alike 3.0 (CC BY-NC-SA 3.0)

© International Union for Conservation of Nature and Natural Resources

Source: IUCN

Trusted

Article rating from 0 people

Default rating: 2.5 of 5

IUCN Red List: Not evaluated / Listed

CITES: Not listed
Creative Commons Attribution Non Commercial 3.0 (CC BY-NC 3.0)

© Shorefishes of the tropical eastern Pacific online information system. www.stri.org/sftep

Source: Shorefishes of the Tropical Eastern Pacific Online Information System

Trusted

Article rating from 0 people

Default rating: 2.5 of 5

Population

Population
No population information is available for this species.

Population Trend
Unknown
Creative Commons Attribution Non Commercial Share Alike 3.0 (CC BY-NC-SA 3.0)

© International Union for Conservation of Nature and Natural Resources

Source: IUCN

Trusted

Article rating from 0 people

Default rating: 2.5 of 5

Threats

Major Threats
No major threats are known for this species.
Creative Commons Attribution Non Commercial Share Alike 3.0 (CC BY-NC-SA 3.0)

© International Union for Conservation of Nature and Natural Resources

Source: IUCN

Trusted

Article rating from 0 people

Default rating: 2.5 of 5

Least Concern (LC)
Creative Commons Attribution Non Commercial 3.0 (CC BY-NC 3.0)

© FishBase

Source: FishBase

Trusted

Article rating from 0 people

Default rating: 2.5 of 5

Management

Conservation Actions

Conservation Actions
There are no known conservation measures for this species. However, this species' distribution falls partially into a number of Marine Protected Areas in the Eastern Tropical Pacific region (WDPA 2006).
Creative Commons Attribution Non Commercial Share Alike 3.0 (CC BY-NC-SA 3.0)

© International Union for Conservation of Nature and Natural Resources

Source: IUCN

Trusted

Article rating from 0 people

Default rating: 2.5 of 5

Disclaimer

EOL content is automatically assembled from many different content providers. As a result, from time to time you may find pages on EOL that are confusing.

To request an improvement, please leave a comment on the page. Thank you!