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Overview

Comprehensive Description

Study Material - A. nemoptera : DZUFRJ 2723, 2724; two specimens; total myomeres 77; 16.7- 31.9 mm SL.

  • Marcia Salustiano de Castro, Ana Cristina Teixeira Bonecker (2005): Leptocephali collected off the eastern coast of Brazil (12 ° – 23 ° S). Zootaxa 935, 1-28: 5-5, URL:http://www.zoobank.org/urn:lsid:zoobank.org:pub:3EA0A64C-D816-4404-8602-B8A4A37D170E
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Biology

Mostly in estuaries, especially those of rivers along mountainous shores (Ref. 7251). Found on soft bottoms (Ref. 5217).
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Distribution

Range Description

This species is known only from the tropical Pacific and the Atlantic coast Central America (Wallace and Tringali 2010).
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Western Atlantic: Greater Antilles and Panama to Brazil; questionably recorded from Florida Keys in USA.
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Western Atlantic and eastern Pacific.
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Physical Description

Morphology

Dorsal spines (total): 0; Dorsal soft rays (total): 19 - 20; Analspines: 0; Analsoft rays: 8
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Size

Maximum size: 510 mm TL
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Max. size

51.0 cm TL (male/unsexed; (Ref. 7251))
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Diagnostic Description

Last rays of dorsal and anal fin prolonged; upper lobe of caudal fin slightly longer than lower lobe; dusky spot at pectoral base; head region naked; nasal pore margin black; black bands on snout (Ref. 13608). Brilliant silver below and dark above (Ref. 37032).
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Ecology

Habitat

Habitat and Ecology

Habitat and Ecology
This species occurs in deeper waters than the typical habitat of Albula species (Smith and Crabtree 2002). Anecdotal evidence and the capture location of some museum specimens indicate an association with river outflows (Bowen et al. 2008). It is mostly estuarine, especially found in estuaries of rivers along mountainous shores, on soft bottom habitats to depths of 50 m.

Diet studies indicate that 16 of 17 individuals collected over open sand bottom near the mouth of a river on the Pacific coast of Costa Rica had fish in their stomachs; one had crab remnants present (Adams unpublished data). The maximum size for this species is 51 cm (TL) (Robins and Ray 1986).

Additional information on the habitat and ecology of this species is absent.

Systems
  • Marine
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Environment

demersal; freshwater; brackish; marine; depth range ? - 50 m (Ref. 5217)
  • Cervigón, F., R. Cipriani, W. Fischer, L. Garibaldi, M. Hendrickx, A.J. Lemus, R. Márquez, J.M. Poutiers, G. Robaina and B. Rodriguez 1992 Fichas FAO de identificación de especies para los fines de la pesca. Guía de campo de las especies comerciales marinas y de aquas salobres de la costa septentrional de Sur América. FAO, Rome. 513 p. Preparado con el financiamento de la Comisión de Comunidades Europeas y de NORAD. (Ref. 5217)   http://www.fishbase.org/references/FBRefSummary.php?id=5217&speccode=7 External link.
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Depth range based on 23 specimens in 1 taxon.
Water temperature and chemistry ranges based on 8 samples.

Environmental ranges
  Depth range (m): 15 - 199.6
  Temperature range (°C): 17.675 - 26.729
  Nitrate (umol/L): 0.605 - 6.326
  Salinity (PPS): 36.078 - 36.698
  Oxygen (ml/l): 3.879 - 4.446
  Phosphate (umol/l): 0.025 - 0.711
  Silicate (umol/l): 2.833 - 3.798

Graphical representation

Depth range (m): 15 - 199.6

Temperature range (°C): 17.675 - 26.729

Nitrate (umol/L): 0.605 - 6.326

Salinity (PPS): 36.078 - 36.698

Oxygen (ml/l): 3.879 - 4.446

Phosphate (umol/l): 0.025 - 0.711

Silicate (umol/l): 2.833 - 3.798
 
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Depth: 0 - 50m.
Recorded at 50 meters.

Habitat: demersal.
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Trophic Strategy

Mostly in estuaries, especially those of rivers along mountainous shores (Ref. 7251). Found on soft bottoms (Ref. 5217).
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Molecular Biology and Genetics

Molecular Biology

Statistics of barcoding coverage: Albula nemoptera

Barcode of Life Data Systems (BOLDS) Stats
Public Records: 0
Specimens with Barcodes: 2
Species With Barcodes: 1
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Conservation

Conservation Status

IUCN Red List Assessment


Red List Category
DD
Data Deficient

Red List Criteria

Version
3.1

Year Assessed
2012

Assessor/s
Adams, A., Guindon, K., Horodysky, A., MacDonald, T., McBride, R., Shenker, J. & Ward, R.

Reviewer/s
Harwell, H. & Raynal, M.

Contributor/s

Justification
This species is known only from the tropical Pacific and the Atlantic coast of North and Central America (Wallace and Tringali 2010). Albula nemoptera may eventually be split into Atlantic and Pacific species, pending the outcome of ongoing investigations (Bowen et al. 2008). There is very little known about the life history, ecology, population status, or threats acting upon this species. Therefore, it is listed as Data Deficient.
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Population

Population
Very little information is available on the population status of this species. There are numerous museum records, including specimens at the Smithsonian National Museum of Natural History, the University of Florida, and the California Academy of Sciences in the United States (accessed through the Fishnet2 Portal, www.fishnet2.net, 2011-05-14).

Population Trend
Unknown
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Threats

Major Threats

Threats to this species are unknown.

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Data deficient (DD)
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Management

Conservation Actions

Conservation Actions
There are no species-specific conservation measures in place for this species. Its distribution overlaps with some marine protected areas in parts of its range.
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Relevance to Humans and Ecosystems

Benefits

Importance

fisheries: minor commercial; price category: unknown; price reliability:
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