Overview

Comprehensive Description

Biology

Inhabit rocky or hard bottom and is a voracious eater. Food includes crustaceans, mollusks, sea urchins, fishes such as herring, sand lance and silver hake, and any bottom invertebrates that are available. When taken out of the water the belly becomes inflated so that when returned to the water they are unable to submerge. Adults attach their eggs near the base of a sponge to use as a spawning bed (Ref. 34819, 41075).
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Distribution

National Distribution

Canada

Origin: Native

Regularity: Regularly occurring

Currently: Present

Confidence: Confident

Type of Residency: Year-round

United States

Origin: Native

Regularity: Regularly occurring

Currently: Present

Confidence: Confident

Type of Residency: Year-round

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Labrador to Chesapeake Bay
  • North-West Atlantic Ocean species (NWARMS)
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Northwest Atlantic: Labrador in Canada to Chesapeake Bay in USA.
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Western North Atlantic: Labrador to Chesapeake Bay.
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Physical Description

Size

Max. size

64.0 cm TL (male/unsexed; (Ref. 7251)); max. published weight: 3,200 g (Ref. 7251)
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Ecology

Habitat

Habitat Type: Marine

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benthic
  • North-West Atlantic Ocean species (NWARMS)
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Found on rocky or hard bottoms to depths of 180 m.
  • North-West Atlantic Ocean species (NWARMS)
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Environment

demersal; marine; depth range ? - 180 m
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Depth range based on 16934 specimens in 1 taxon.
Water temperature and chemistry ranges based on 12248 samples.

Environmental ranges
  Depth range (m): 0 - 540
  Temperature range (°C): -1.960 - 25.421
  Nitrate (umol/L): 0.250 - 22.319
  Salinity (PPS): 29.371 - 36.779
  Oxygen (ml/l): 3.207 - 7.938
  Phosphate (umol/l): 0.059 - 1.806
  Silicate (umol/l): 0.988 - 19.024

Graphical representation

Depth range (m): 0 - 540

Temperature range (°C): -1.960 - 25.421

Nitrate (umol/L): 0.250 - 22.319

Salinity (PPS): 29.371 - 36.779

Oxygen (ml/l): 3.207 - 7.938

Phosphate (umol/l): 0.059 - 1.806

Silicate (umol/l): 0.988 - 19.024
 
Note: this information has not been validated. Check this *note*. Your feedback is most welcome.

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Migration

Non-Migrant: No. All populations of this species make significant seasonal migrations.

Locally Migrant: No. No populations of this species make local extended movements (generally less than 200 km) at particular times of the year (e.g., to breeding or wintering grounds, to hibernation sites).

Locally Migrant: No. No populations of this species make annual migrations of over 200 km.

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Trophic Strategy

Larvae feed mainly on the larvae of other fish (Ref. 13548). Parasites of the species include 2 protozoans, 2 myxosporidians, 9 trematodes, 1 cestode and 2 nematodes (Ref. 5951).
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Associations

Known prey organisms

  • Link J (2002) Does food web theory work for marine ecosystems? Mar Ecol Prog Ser 230:1–9
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Known predators

Hemitripterus americanus (Sea Raven) is prey of:
Myoxocephalus octodecemspinosus
Leucoraja erinacea
Leucoraja ocellata
Mustelus canis
Lophius americanus

Based on studies in:
USA, Northeastern US contintental shelf (Coastal)

This list may not be complete but is based on published studies.
  • Link J (2002) Does food web theory work for marine ecosystems? Mar Ecol Prog Ser 230:1–9
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Life History and Behavior

Behavior

Diet

Feeds on crustaceans, mollusks, sea urchins, fishes and bottom invertebrates
  • North-West Atlantic Ocean species (NWARMS)
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Life Cycle

Adults attach their eggs near the base of a sponge to use as a spawning bed (Ref. 34819, 41075).
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Molecular Biology and Genetics

Molecular Biology

Barcode data: Hemitripterus americanus

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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Statistics of barcoding coverage: Hemitripterus americanus

Barcode of Life Data Systems (BOLDS) Stats
Public Records: 19
Specimens with Barcodes: 28
Species With Barcodes: 1
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Conservation

Conservation Status

National NatureServe Conservation Status

Canada

Rounded National Status Rank: NNR - Unranked

United States

Rounded National Status Rank: NNR - Unranked

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NatureServe Conservation Status

Rounded Global Status Rank: GNR - Not Yet Ranked

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Threats

Not Evaluated
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Relevance to Humans and Ecosystems

Benefits

Importance

bait: occasionally
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Wikipedia

Hemitripterus americanus

Hemitripterus americanus, also known as the sea raven, is a venomous species of scorpion fish from the family Scorpaenidae.[1]

References[edit]

  1. ^ WORMS. "World Registry of Marine Species". marinespecies.org. Retrieved 25 June 2013. 


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