Overview

Comprehensive Description

Biology

Adults occur near shore in beds of vegetation, often around floating vegetation a short distance from shore. Rarely enter fresh water (Ref. 7251). Males build, guard and aerate the nest where the eggs are deposited (Ref. 205).
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Distribution

occurs (regularly, as a native taxon) in multiple nations

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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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Global Range: Atlantic coast from Newfoundland to Long Island.

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Newfoundland to Massachusetts
  • North-West Atlantic Ocean species (NWARMS)
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Eastern North America.
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Western Atlantic: Newfoundland, Canada to Massachusetts, USA.
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Physical Description

Size

Length: 8 cm

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Maximum size: 75 mm TL
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Max. size

7.6 cm TL (male/unsexed; (Ref. 5951)); max. reported age: 1 years (Ref. 12193)
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Ecology

Habitat

Habitat Type: Marine

Comments: Along coast in salt and brackish water, occasionally in fresh water. Most often in estuarine conditions over sand, mud, or rubble bottom, associated with eel grass or other vegetation. Often semipelagic, swims near floating seaweed.

Enters brackish creeks, streams, and tidal pools to spawn. Eggs are laid in a nest constructed of plant material by the male, or nests may be constructed in the absence of vegetation (Cleveland, Copeia 1994:698-704). Nest in water up to 60 cm deep at low tide.

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nektonic
  • North-West Atlantic Ocean species (NWARMS)
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Benthopelagic, coastal species found in beds of vegetation, rarely enters freshwater.
  • North-West Atlantic Ocean species (NWARMS)
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Environment

benthopelagic; brackish; marine
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Depth range based on 12 specimens in 1 taxon.
Water temperature and chemistry ranges based on 1 sample.

Environmental ranges
  Depth range (m): 0.4 - 170
  Temperature range (°C): 7.639 - 7.639
  Nitrate (umol/L): 4.654 - 4.654
  Salinity (PPS): 32.535 - 32.535
  Oxygen (ml/l): 6.751 - 6.751
  Phosphate (umol/l): 0.670 - 0.670
  Silicate (umol/l): 3.862 - 3.862

Graphical representation

Depth range (m): 0.4 - 170
 
Note: this information has not been validated. Check this *note*. Your feedback is most welcome.

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Migration

Non-Migrant: Yes. At least some populations of this species do not make significant seasonal migrations. Juvenile dispersal is not considered a migration.

Locally Migrant: Yes. At least some 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.

May migrate between spawning and nonspawning areas (Lee et al. 1980).

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Trophic Strategy

Occurs near shore in beds of vegetation, often around floating vegetation a short distance from shore. Rarely enters fresh water (Ref. 7251). Semipelagic, swimming near floating seaweed; prefers salinity of 7-14 ppt. Feeds on small invertebrates, small fishes and eggs.
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Life History and Behavior

Behavior

Diet

Feeds on small fishes, small invertebrates and eggs
  • North-West Atlantic Ocean species (NWARMS)
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Life Cycle

Males build, guard and aerate the nest where the eggs are deposited (Ref. 205).
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Reproduction

Spawns in late spring. Eggs and fry guarded by male. (Scott and Crossman 1973). Spawns at one year of age (Lee et al. 1980).

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Molecular Biology and Genetics

Molecular Biology

Barcode data: Gasterosteus wheatlandi

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


There are 6 barcode sequences available from BOLD and GenBank.

Below is a sequence of the barcode region Cytochrome oxidase subunit 1 (COI or COX1) from a member of the species.

See the BOLD taxonomy browser for more complete information about this specimen and other sequences.

ACACGATGATTCTTCTCAACTAATCACAAAGACATTGGTACCCTCTATCTAGTATTTGGTGCCTGAGCCGGAATAGTCGGAACAGCTCTA---AGCCTTCTGATTCGAGCCGAACTAAGCCAACCCGGTGCTCTACTGGGAGAC---GATCAAATCTACAACGTAATTGTTACAGCTCATGCTTTTGTAATAATCTTCTTTATAGTTATACCAATTATGATTGGAGGCTTTGGCAACTGACTTATTCCACTAATG---ATTGGGGCCCCTGATATGGCGTTTCCACGAATAAACAATATGAGCTTCTGACTACTTCCTCCCTCATTTTTATTACTCCTTGCTTCTTCAGGAGTTGAAGCTGGTGCAGGGACAGGATGAACAGTTTATCCCCCTCTATCTGGAAACCTGGCCCATGCAGGTGCCTCAGTAGACCTA---ACAATCTTTTCTCTTCATCTTGCCGGTATTTCATCAATTCTAGGGGCAATCAACTTCATTACCACAATTATTAACATGAAACCTCCCGCCATTTCTCAGTACCAAACACCTCTATTCGTATGGTCTGTACTAATTACTGCAGTCCTTCTTCTCCTCTCCCTACCAGTTCTTGCAGCT---GGAATTACCATGCTTTTAACAGACCGAAACCTAAACACCACTTTCTTTGATCCCGCAGGAGGTGGGGACCCTATTCTTTACCAACATTTATTTTGATTCTTTGGACACCCTGAGGTATACATTCTTATTCTGCCAGGTTTCGGAATAATCTCCCATATTGTTGCATACTACTCTGGGAAAAAG---GAACCTTTCGGTTATATGGGAATGGTATGAGCAATAATGGCCATTGGCCTTCTAGGTTTTATTGTCTGAGCACACCATATGTTTACGGTAGGAATGGATGTGGACACCCGAGCTTATTTCACCTCCGCCACCATGATTATTGCAATCCCAACAGGTGTTAAAGTTTTTAGCTGACTA---GCTACACTACATGGGGGC---TCAATCAAATGAGAAACACCCCTTCTTTGAGCACTTGGCTTCATCTTCCTATTTACTGTTGGGGGACTAACAGGCATTGTTCTTGCAAATTCTTCCCTTGATATCGTCCTTCATGATACTTACTACGTTGTTGCCCACTTCCACTATGTA---CTTTCCATGGGAGCCGTATTTGCTATTATTGCAGGCTTTGTGCACTGATTCCCCCTATTTTCAGGATACACCCTTCATAGCACTTGAACAAAAGTTCATTTCGGTGTTATATTTACAGGTGTAAACCTAACCTTTTTCCCTCAACATTTCTTAGGCTTGGCCGGAATACCTCGA---CGATACTCGGACTACCCAGATGCCTATACA---CTGTGAAATACAGTATCTTCAATTGGCTCCCTTGTATCACTAGTTGCAGTAATTATGTTCCTATTTATCATCTGAGAAGCATTCGCTGCTAAACGTGAAGTT---CTAGCAGTTGAAATAACAACAACGAAC
-- end --

Download FASTA File

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Statistics of barcoding coverage: Gasterosteus wheatlandi

Barcode of Life Data Systems (BOLDS) Stats
Public Records: 7
Specimens with Barcodes: 13
Species With Barcodes: 1
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Conservation

Conservation Status

National NatureServe Conservation Status

Canada

Rounded National Status Rank: N5 - Secure

United States

Rounded National Status Rank: NNR - Unranked

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NatureServe Conservation Status

Rounded Global Status Rank: G5 - Secure

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Threats

Not Evaluated
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Wikipedia

Blackspotted stickleback

Blackspotted stickleback (Gasterosteus wheatlandi) is a fish species, found in the western Atlantic from the coasts of Newfoundland (Canada) to Massachusetts (USA). Brackishwater / marine benthic fish, up to 7.5 cm length.

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Names and Taxonomy

Taxonomy

Comments: See McLennan (1993) for a phylogenetic analysis of the Gasterosteidae based on behavioral characters.

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