Overview

Comprehensive Description

Biology

Metamorphosed individuals may be found in tide pools to a depth of at least 14 m (Ref. 1602). Ovoviviparous (Ref. 205). The male carries the eggs in a brood pouch which is found under the tail (Ref. 205).
  • Dawson, C.E. 1985 Indo-Pacific pipefishes (Red Sea to the Americas). The Gulf Coast Research Laboratory Ocean Springs, Mississippi, USA. (Ref. 5316)
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Distribution

Range Description

Bhanotia nuda is known from Palau and Maiwara Island, Milne Bay Province, Papua New Guinea. The area in which this species is distributed is less than 5,000 km2.
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Western Central Pacific: Palau and southeastern Papua New Guinea.
  • Dawson, C.E. 1985 Indo-Pacific pipefishes (Red Sea to the Americas). The Gulf Coast Research Laboratory Ocean Springs, Mississippi, USA. (Ref. 5316)
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Western Pacific.
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Physical Description

Morphology

Dorsal spines (total): 0; Dorsal soft rays (total): 26 - 30; Analsoft rays: 3
  • Myers, R.F. 1991 Micronesian reef fishes. Second Ed. Coral Graphics, Barrigada, Guam. 298 p. (Ref. 1602)
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Size

Maximum size: 70 mm SL
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Max. size

7.0 cm SL (male/unsexed; (Ref. 1602))
  • Myers, R.F. 1991 Micronesian reef fishes. Second Ed. Coral Graphics, Barrigada, Guam. 298 p. (Ref. 1602)
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Diagnostic Description

Planktonic juveniles have lateral spines on the snout. Rings: 13-14+37-40=51-55 (Ref. 37816)Description: Characterized by generally brownish color; often with small dark spots on snout and opercle; sometimes with dark-edged pale spot near anteroventral angle of opercle; 10 caudal rays; discontinuous superior trunk and tail ridges; straight lateral trunk ridge, ends near anal ring; continuous inferior trunk and tail ridges; length of snout 2.6-3.3 in head length (Ref 90102).
  • Myers, R.F. 1991 Micronesian reef fishes. Second Ed. Coral Graphics, Barrigada, Guam. 298 p. (Ref. 1602)
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Type Information

Paratype for Bhanotia nuda Dawson
Catalog Number: USNM 207444
Collection: Smithsonian Institution, National Museum of Natural History, Department of Vertebrate Zoology, Division of Fishes
Collector(s): T. Roberts
Year Collected: 1975
Locality: Papua New Guinea, Milne Bay, Maiwara Island west of Alotau., New Guinea, Papua New Guinea, Pacific
Depth (m): 10
  • Paratype: Dawson, C. E. 1978. Proceedings of the Biological Society of Washington. 91 (2): 403.
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Ecology

Habitat

Habitat and Ecology

Habitat and Ecology
Bhanotia nuda is a small and secretive species found on shallow algae reef habitats, in tidal pools and in sheltered reef flats (Kuiter 2000). It is also known from the vicinity of mangrove forests, coral reefs, and silty waters. Metamorphosed individuals of this species may be found in tide pools to a depth of at least 14 m (Myers 1991). Males carry the eggs in a brood pouch which is found under the tail (R. Fritzsche pers. comm. 2009).

Systems
  • Marine
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Environment

reef-associated; marine; depth range 0 - 2 m (Ref. 58018)
  • Bogutskaya, N.G. 2007 Preliminary assignment of coordinates to type localities in the Catalog of Fishes. Unpublished dbf file. (Ref. 58018)
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Depth range based on 2 specimens in 1 taxon.
Water temperature and chemistry ranges based on 2 samples.

Environmental ranges
  Depth range (m): 0.915 - 3.05
  Temperature range (°C): 28.954 - 28.954
  Nitrate (umol/L): 0.099 - 0.099
  Salinity (PPS): 34.131 - 34.131
  Oxygen (ml/l): 4.525 - 4.525
  Phosphate (umol/l): 0.113 - 0.113
  Silicate (umol/l): 1.579 - 1.579

Graphical representation

Depth range (m): 0.915 - 3.05
 
Note: this information has not been validated. Check this *note*. Your feedback is most welcome.

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Life History and Behavior

Life Cycle

Male carries the eggs in a brood pouch (Ref. 205).
  • Breder, C.M. and D.E. Rosen 1966 Modes of reproduction in fishes. T.F.H. Publications, Neptune City, New Jersey. 941 p. (Ref. 205)
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Conservation

Conservation Status

IUCN Red List Assessment


Red List Category
LC
Least Concern

Red List Criteria

Version
3.1

Year Assessed
2010

Assessor/s
Bartnik, S., Robinson, E., Morgan, S.K., Sorensen, M., Fritzsche, R., Collette, B., Nelson, J., Dooley, J., Matsuura, K. & Carpenter, K.

Reviewer/s
Collen, B., Richman, N., Beresford, A., Chenery, A. & Ram, M.

Contributor/s
De Silva, R., Milligan, H., Lutz, M., Batchelor, A., Jopling, B., Kemp, K., Lewis, S., Lintott, P., Sears, J., Wilson, P., Smith, J. & Livingston, F.

Justification
Bhanotia nuda has been assessed as Least Concern. This species is not known to be impacted by any major threats at present. While its habitat may be undergoing degradation from a number of potential threat processes, this species is unlikely to be significantly impacted as it shows little habitat specificity and is tolerant of a range of conditions. Monitoring of the population trends of this species shall better determine any unknown threats to this species.
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Population

Population
There is no population information available for Bhanotia nuda.

Population Trend
Unknown
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Threats

Major Threats
Bhanotia nuda is known from a number of habitat types including mangroves, silty coastal waters, algal reefs and coral reef systems, some of which are threatened. However, since this species utilizes a number of different habitats, there are no known specific major threats.
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Least Concern (LC)
  • IUCN 2006 2006 IUCN red list of threatened species. www.iucnredlist.org. Downloaded July 2006.
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Management

Conservation Actions

Conservation Actions
There are no species-specific conservation measures in place for Bhanotia nuda, however its distribution range may coincide with a number of marine protected areas.

Monitoring of the population trends of this species is needed.
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