Overview

Comprehensive Description

General Description

Molecular analysis using four genes (12S, 16S, Cytb, and COI) suggested that a common cold-seep species in the Gulf of Mexico, Acesta bullisi, should be divided into two distinct species - A. bullisi and A. oophaga. This conclusion was supported by morphological traits and observations of ecological distribution.

Description: The maximum shell height is 113 mm. The shell is quite wide, and in older individuals is thick and more strongly striated than in A. excavata or A. bullisi. The shell is equivalve. The anterior ears are almost reduced, and posterior conspicuous. A notch in the lunular area is present in adult specimens which is lacking in juveniles. There is a pronounced pouting of the shell below the lunular area.

(Järnegen et al., 2007)

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Distribution

Hydrocarbon seeps in the Gulf of Mexico between 400-800 m depth, attached to the tubeworm Lamellibrachia luymesi (Järnegen et al., 2007)

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Physical Description

Type Information

Holotype for Acesta oophaga Jarnegren et al., 2007
Catalog Number: USNM 1100201
Collection: Smithsonian Institution, National Museum of Natural History, Department of Invertebrate Zoology
Sex/Stage: Male;
Preparation: Dry
Year Collected: 2003
Locality: Green Canyon 234 Site, Louisiana, United States, Gulf of Mexico, North Atlantic Ocean
Depth (m): 500 to 700
Vessel: Johnson Sea Link DSR/V
  • Holotype: Jarnegren, J., et al. 2007. Four genes, morphology and ecology: distinguishing a new species of Acesta (Mollusca; Bivalvia) from the Gulf of Mexico. Marine Biology. 152 (1): 43-55.
Creative Commons Attribution 3.0 (CC BY 3.0)

© Smithsonian Institution, National Museum of Natural History, Department of Invertebrate Zoology

Source: National Museum of Natural History Collections

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Paratype for Acesta oophaga Jarnegren et al., 2007
Catalog Number: USNM 1100205
Collection: Smithsonian Institution, National Museum of Natural History, Department of Invertebrate Zoology
Sex/Stage: Female;
Preparation: Dry
Year Collected: 2004
Locality: Green Canyon 234 Site, Louisiana, United States, Gulf of Mexico, North Atlantic Ocean
Depth (m): 500 to 700
Vessel: Johnson Sea Link DSR/V
  • Paratype: Jarnegren, J., et al. 2007. Four genes, morphology and ecology: distinguishing a new species of Acesta (Mollusca; Bivalvia) from the Gulf of Mexico. Marine Biology. 152 (1): 43-55.
Creative Commons Attribution 3.0 (CC BY 3.0)

© Smithsonian Institution, National Museum of Natural History, Department of Invertebrate Zoology

Source: National Museum of Natural History Collections

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Paratype for Acesta oophaga Jarnegren et al., 2007
Catalog Number: USNM 1100204
Collection: Smithsonian Institution, National Museum of Natural History, Department of Invertebrate Zoology
Sex/Stage: Male;
Preparation: Dry
Year Collected: 2003
Locality: Green Canyon 234 Site, Louisiana, United States, Gulf of Mexico, North Atlantic Ocean
Depth (m): 500 to 700
Vessel: Johnson Sea Link DSR/V
  • Paratype: Jarnegren, J., et al. 2007. Four genes, morphology and ecology: distinguishing a new species of Acesta (Mollusca; Bivalvia) from the Gulf of Mexico. Marine Biology. 152 (1): 43-55.
Creative Commons Attribution 3.0 (CC BY 3.0)

© Smithsonian Institution, National Museum of Natural History, Department of Invertebrate Zoology

Source: National Museum of Natural History Collections

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Paratype for Acesta oophaga Jarnegren et al., 2007
Catalog Number: USNM 1100203
Collection: Smithsonian Institution, National Museum of Natural History, Department of Invertebrate Zoology
Sex/Stage: Female;
Preparation: Dry
Year Collected: 2003
Locality: Green Canyon 234 Site, Louisiana, United States, Gulf of Mexico, North Atlantic Ocean
Depth (m): 500 to 700
Vessel: Johnson Sea Link DSR/V
  • Paratype: Jarnegren, J., et al. 2007. Four genes, morphology and ecology: distinguishing a new species of Acesta (Mollusca; Bivalvia) from the Gulf of Mexico. Marine Biology. 152 (1): 43-55.
Creative Commons Attribution 3.0 (CC BY 3.0)

© Smithsonian Institution, National Museum of Natural History, Department of Invertebrate Zoology

Source: National Museum of Natural History Collections

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Paratype for Acesta oophaga Jarnegren et al., 2007
Catalog Number: USNM 1100202
Collection: Smithsonian Institution, National Museum of Natural History, Department of Invertebrate Zoology
Sex/Stage: Male;
Preparation: Dry
Year Collected: 2003
Locality: Green Canyon 234 Site, Louisiana, United States, Gulf of Mexico, North Atlantic Ocean
Depth (m): 500 to 700
Vessel: Johnson Sea Link DSR/V
  • Paratype: Jarnegren, J., et al. 2007. Four genes, morphology and ecology: distinguishing a new species of Acesta (Mollusca; Bivalvia) from the Gulf of Mexico. Marine Biology. 152 (1): 43-55.
Creative Commons Attribution 3.0 (CC BY 3.0)

© Smithsonian Institution, National Museum of Natural History, Department of Invertebrate Zoology

Source: National Museum of Natural History Collections

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Ecology

Habitat

Found associated with cold-seeps on the upper Louisiana slope in the northern Gulf of Mexico, always associated with the tubeworm Lamellibrachia luymesi at depths between 400-700 m (Järnegen et al., 2007)

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Molecular Biology and Genetics

Genetics

The COI sequences given below should be considered diagnostic for the species.

Gene accession numbers: AM494900, 494901, 494902, 494903 and 494904

(Järnegen et al., 2007)

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Molecular Biology

Barcode data: Acesta oophaga

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


There are 5 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.

ACCTTATACTTTTTGTTAGGGTTTTGATCTTCCTTGAGAGGAATTAGGTTT---AGGTTAATTATTCGTATTCAGCTGTCTCGACCGGGTGAGTGACTAAATCCA------CAGTTGTATAATGTAGTAGTGACTAGTCATGCTCTTTTAATAATTTTTTTCTTTGTAATGCCTGTTATAATTGGTGGGTTTGGAAATTGGCTTATTCCTTTGTTG---TTGGGGGCGCCTGATATAGCTTTCCCTCGTTTAAATAACTTTAGGTTTTGGCTCTTACCTTTAGCTTTGTATATAGTTCTGTCGTCTATGCGAGTGGACGGGGGTAGTGGAACTGGGTGGACCCTTTATCCCCCTCTCTCAGGTCTTTTGGGCTCGGACAGGGCTAGGGTTAACTATAGG---ATTGTGTCATTGCATTTGGCTGGGATATCCTCAATGGCTGGAGCTATTAACTTTATTGTGACGTTGTATTTGGTTCGACCGAACGCTATAATTGCGGAGCGTATTCCCCTTTACGGATGGTCTATTGCTGTGACCAGAGTTTTACTGTTAGTGTCAGTACCAGTATTCGCTGGG---GCTTTGACCATGCTTATTATAGACCGTAATTATAATACTGGGTTTTTTACGCCAGAGGGGGGGGGAGACCCAGTCCTCTTCCAGCACCTA------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------TTT
-- end --

Download FASTA File

Creative Commons Attribution 3.0 (CC BY 3.0)

© Barcode of Life Data Systems

Source: Barcode of Life Data Systems (BOLD)

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Statistics of barcoding coverage: Acesta oophaga

Barcode of Life Data Systems (BOLDS) Stats
Public Records: 5
Specimens with Barcodes: 5
Species With Barcodes: 1
Creative Commons Attribution 3.0 (CC BY 3.0)

© Barcode of Life Data Systems

Source: Barcode of Life Data Systems (BOLD)

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