Overview

Comprehensive Description

Biology/Natural History: This bathypelagic midwater shrimp is an active, steady swimming predator but does not vertically migrate. A cosmopolitan species at tropical and subtropical latitudes, there is substantial genetic distance between populations separated by large geographical distances (such as between California and Hawaii, John F. Scarbrough dissertation, Loma Linda Universtiy 2004). It is less common this far north than it is in tropical and subtropical waters.

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Source: Invertebrates of the Salish Sea

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This is a true shrimp from the family Oplophoridae, which lives in deep midwater offshore. True (Caridean) shrimp have the second abdominal epimera overlapping that of segment 1 and 2. Family Oplophoridae is almost entirely midwater, has exopodites on its pereopods, and pereopods 1 and 2 are longer and more stout than the others. Acanthephyra curtirostris is an all-red shrimp which has a median dorsal ridge on abdominal segment 6 but not on segment 1. It has a blunt rostrum as in the photo above. The second somite of the abdomen is dorsally carinate. The dorsal carina on the carapace does not extend back onto the posterior third of the carapace. The branchiostegal spine is supported by a carina which extends to the posterior half of the branchial region. The rostrum is triangular and drawn out into a sharp point. The telson has 7 to 15 dorsolateral spines. Up to about 79 mm total length.
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Source: Invertebrates of the Salish Sea

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Distribution

Geographical Range: Worldwide at lower latitudes; to 51 degrees north in the Eastern Pacific.

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Source: Invertebrates of the Salish Sea

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Physical Description

Look Alikes

How to Distinguish from Similar Species: This species looks rather similar to the rare A. brevirostris and A. chacei, and to A. smithi, which grows larger, is found farther south, and has a more acute rostrum. Few other species have the distinctively shaped rostrum.
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Source: Invertebrates of the Salish Sea

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Ecology

Habitat

Known from seamounts and knolls
  • Stocks, K. 2009. Seamounts Online: an online information system for seamount biology. Version 2009-1. World Wide Web electronic publication.
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Source: World Register of Marine Species

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Depth range based on 85 specimens in 1 taxon.
Water temperature and chemistry ranges based on 72 samples.

Environmental ranges
  Depth range (m): 0 - 5330
  Temperature range (°C): 1.393 - 26.991
  Nitrate (umol/L): 0.051 - 44.846
  Salinity (PPS): 34.244 - 35.481
  Oxygen (ml/l): 0.406 - 5.857
  Phosphate (umol/l): 0.089 - 3.312
  Silicate (umol/l): 1.580 - 174.224

Graphical representation

Depth range (m): 0 - 5330

Temperature range (°C): 1.393 - 26.991

Nitrate (umol/L): 0.051 - 44.846

Salinity (PPS): 34.244 - 35.481

Oxygen (ml/l): 0.406 - 5.857

Phosphate (umol/l): 0.089 - 3.312

Silicate (umol/l): 1.580 - 174.224
 
Note: this information has not been validated. Check this *note*. Your feedback is most welcome.

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Depth Range: Deep midwater, 200 - 2200 m

Habitat: Midwater

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© Rosario Beach Marine Laboratory

Source: Invertebrates of the Salish Sea

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Molecular Biology and Genetics

Molecular Biology

Barcode data: Acanthephyra curtirostris

The following is a representative barcode sequence, the centroid of all available sequences for this species.


No available public DNA sequences.

Download FASTA File
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© Barcode of Life Data Systems

Source: Barcode of Life Data Systems (BOLD)

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Statistics of barcoding coverage: Acanthephyra curtirostris

Barcode of Life Data Systems (BOLDS) Stats
Public Records: 7
Specimens with Barcodes: 7
Species With Barcodes: 1
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Source: Barcode of Life Data Systems (BOLD)

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