Variation in growth-rate and form of a Bathonian (Middle Jurassic) oyster in England, and its environmental implications
We review controls on extensional growth rate and shell thickness in the extant oyster Crassostrea. Data on these shell parameters for the ecologically similar Bathonian oyster Praeexogyra hebridica, sampled at carefully selected sites, are then used to test a hypothesis that small size in contempor...
Published in: | Palaeontology |
---|---|
Main Authors: | , , |
Format: | Report |
Language: | English |
Published: |
BLACKWELL PUBLISHING
2007
|
Subjects: | |
Online Access: | http://ir.nigpas.ac.cn/handle/332004/95 https://doi.org/10.1111/j.1475-4983.2007.00698.x |
id |
ftchinacscnigpas:oai:ir.nigpas.ac.cn:332004/95 |
---|---|
record_format |
openpolar |
spelling |
ftchinacscnigpas:oai:ir.nigpas.ac.cn:332004/95 2023-05-15T17:54:19+02:00 Variation in growth-rate and form of a Bathonian (Middle Jurassic) oyster in England, and its environmental implications Johnson, Andrew L. A. Liquorish, Mark N. Sha, Jingeng (沙金庚) 2007-09-01 http://ir.nigpas.ac.cn/handle/332004/95 https://doi.org/10.1111/j.1475-4983.2007.00698.x 英语 eng BLACKWELL PUBLISHING PALAEONTOLOGY http://ir.nigpas.ac.cn/handle/332004/95 doi:10.1111/j.1475-4983.2007.00698.x Jurassic Bathonian Oyster Sclerochronology Palaeosalinity Palaeoproductivity Crassostrea-virginica Gmelin Stable-isotope Sclerochronology Pacific Oyster Eastern Oyster Cretaceous Oyster Perkinsus-marinus Bivalve Mollusks Gigas Thunberg Western-europe New-zealand Paleontology 期刊论文 2007 ftchinacscnigpas https://doi.org/10.1111/j.1475-4983.2007.00698.x 2019-10-11T00:03:03Z We review controls on extensional growth rate and shell thickness in the extant oyster Crassostrea. Data on these shell parameters for the ecologically similar Bathonian oyster Praeexogyra hebridica, sampled at carefully selected sites, are then used to test a hypothesis that small size in contemporaneous marine bivalves of north-west Europe was the product of reduced salinity. The hypothesis is refuted, at least to the extent that some additional factor must be involved. The relatively low extensional growth rate and shell thickness at the highest-salinity site, together with the elongate ('etiolated') shape there and the low extensional growth rate at all sites in comparison with Crassostrea, suggests that this factor is reduced primary productivity. Other faunal, sedimentological and diagenetic evidence is consistent with low productivity. We point to other possible instances of reduced productivity during the Middle Jurassic and discuss the possible role of this factor in encouraging the widespread colonization of brackish-water environments by bivalves in the Bathonian Stage. Report Pacific oyster Nanjing Institute of Geology and Palaeontology: NIGPAS OpenIR (Chinese Academy of Sciences) Pacific New Zealand Palaeontology 50 5 1155 1173 |
institution |
Open Polar |
collection |
Nanjing Institute of Geology and Palaeontology: NIGPAS OpenIR (Chinese Academy of Sciences) |
op_collection_id |
ftchinacscnigpas |
language |
English |
topic |
Jurassic Bathonian Oyster Sclerochronology Palaeosalinity Palaeoproductivity Crassostrea-virginica Gmelin Stable-isotope Sclerochronology Pacific Oyster Eastern Oyster Cretaceous Oyster Perkinsus-marinus Bivalve Mollusks Gigas Thunberg Western-europe New-zealand Paleontology |
spellingShingle |
Jurassic Bathonian Oyster Sclerochronology Palaeosalinity Palaeoproductivity Crassostrea-virginica Gmelin Stable-isotope Sclerochronology Pacific Oyster Eastern Oyster Cretaceous Oyster Perkinsus-marinus Bivalve Mollusks Gigas Thunberg Western-europe New-zealand Paleontology Johnson, Andrew L. A. Liquorish, Mark N. Sha, Jingeng (沙金庚) Variation in growth-rate and form of a Bathonian (Middle Jurassic) oyster in England, and its environmental implications |
topic_facet |
Jurassic Bathonian Oyster Sclerochronology Palaeosalinity Palaeoproductivity Crassostrea-virginica Gmelin Stable-isotope Sclerochronology Pacific Oyster Eastern Oyster Cretaceous Oyster Perkinsus-marinus Bivalve Mollusks Gigas Thunberg Western-europe New-zealand Paleontology |
description |
We review controls on extensional growth rate and shell thickness in the extant oyster Crassostrea. Data on these shell parameters for the ecologically similar Bathonian oyster Praeexogyra hebridica, sampled at carefully selected sites, are then used to test a hypothesis that small size in contemporaneous marine bivalves of north-west Europe was the product of reduced salinity. The hypothesis is refuted, at least to the extent that some additional factor must be involved. The relatively low extensional growth rate and shell thickness at the highest-salinity site, together with the elongate ('etiolated') shape there and the low extensional growth rate at all sites in comparison with Crassostrea, suggests that this factor is reduced primary productivity. Other faunal, sedimentological and diagenetic evidence is consistent with low productivity. We point to other possible instances of reduced productivity during the Middle Jurassic and discuss the possible role of this factor in encouraging the widespread colonization of brackish-water environments by bivalves in the Bathonian Stage. |
format |
Report |
author |
Johnson, Andrew L. A. Liquorish, Mark N. Sha, Jingeng (沙金庚) |
author_facet |
Johnson, Andrew L. A. Liquorish, Mark N. Sha, Jingeng (沙金庚) |
author_sort |
Johnson, Andrew L. A. |
title |
Variation in growth-rate and form of a Bathonian (Middle Jurassic) oyster in England, and its environmental implications |
title_short |
Variation in growth-rate and form of a Bathonian (Middle Jurassic) oyster in England, and its environmental implications |
title_full |
Variation in growth-rate and form of a Bathonian (Middle Jurassic) oyster in England, and its environmental implications |
title_fullStr |
Variation in growth-rate and form of a Bathonian (Middle Jurassic) oyster in England, and its environmental implications |
title_full_unstemmed |
Variation in growth-rate and form of a Bathonian (Middle Jurassic) oyster in England, and its environmental implications |
title_sort |
variation in growth-rate and form of a bathonian (middle jurassic) oyster in england, and its environmental implications |
publisher |
BLACKWELL PUBLISHING |
publishDate |
2007 |
url |
http://ir.nigpas.ac.cn/handle/332004/95 https://doi.org/10.1111/j.1475-4983.2007.00698.x |
geographic |
Pacific New Zealand |
geographic_facet |
Pacific New Zealand |
genre |
Pacific oyster |
genre_facet |
Pacific oyster |
op_relation |
PALAEONTOLOGY http://ir.nigpas.ac.cn/handle/332004/95 doi:10.1111/j.1475-4983.2007.00698.x |
op_doi |
https://doi.org/10.1111/j.1475-4983.2007.00698.x |
container_title |
Palaeontology |
container_volume |
50 |
container_issue |
5 |
container_start_page |
1155 |
op_container_end_page |
1173 |
_version_ |
1766162058308485120 |