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| Main Authors: | , , |
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| Format: | Dataset Open Access |
| Language: | en |
| Published: |
PANGAEA
2001
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| Subjects: | |
| Online Access: | https://doi.org/10.1594/PANGAEA.744812 |
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| _version_ | 1867169977294913536 |
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| author | Tunnicliffe, Verena O'Connell, J M McQuoid, Melissa R |
| author_facet | Tunnicliffe, Verena O'Connell, J M McQuoid, Melissa R |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | Ocean Drilling Program Leg 169S retrieved a complete Holocene sequence from Saanich Inlet, British Columbia, Canada. Fish and diatom remains were extracted from sediments at Site 1034. Very small fish bones, teeth and scales were ubiquitous except in the lowermost glaciomarine clays; scales degraded with depth. In the identifiable fraction, Pacific herring were the most abundant with Pacific hake and cartilaginous fish yielding significant fractions. Fish remains appear just before 12 000 BP but greatest diversity does not occur until about 6500 BP. A smoothed abundance curve highlights two periods of maximal abundance at about 1500 and 6500 BP. Abundances in the last 1000 years are lower than the rest of the record. A correlation with abundances of seven phytoplankton taxa is significant; diatoms explain about a third of the variance. This study demonstrates the use of fish and diatoms from the same paleosedimentary matrix to examine millennia-scale correlations between primary and tertiary production. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_744812 |
| institution | PANGAEA |
| language | en |
| publishDate | 2001 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | (Table 1) Depth and time of first appearance of species identified by fish remains in ODP Site 169-1034 Tunnicliffe, Verena O'Connell, J M McQuoid, Melissa R 169-1034; Abundance; AGE; Age, maximum/old; Age, minimum/young; Coastal waters of SE Alaska; Comment; COMPCORE; Composite Core; Depth, bottom/max; Integrated Ocean Drilling Program / International Ocean Discovery Program; IODP; Joides Resolution; Leg169S; see reference(s); Species Ocean Drilling Program Leg 169S retrieved a complete Holocene sequence from Saanich Inlet, British Columbia, Canada. Fish and diatom remains were extracted from sediments at Site 1034. Very small fish bones, teeth and scales were ubiquitous except in the lowermost glaciomarine clays; scales degraded with depth. In the identifiable fraction, Pacific herring were the most abundant with Pacific hake and cartilaginous fish yielding significant fractions. Fish remains appear just before 12 000 BP but greatest diversity does not occur until about 6500 BP. A smoothed abundance curve highlights two periods of maximal abundance at about 1500 and 6500 BP. Abundances in the last 1000 years are lower than the rest of the record. A correlation with abundances of seven phytoplankton taxa is significant; diatoms explain about a third of the variance. This study demonstrates the use of fish and diatoms from the same paleosedimentary matrix to examine millennia-scale correlations between primary and tertiary production. |
| title | (Table 1) Depth and time of first appearance of species identified by fish remains in ODP Site 169-1034 |
| topic | 169-1034; Abundance; AGE; Age, maximum/old; Age, minimum/young; Coastal waters of SE Alaska; Comment; COMPCORE; Composite Core; Depth, bottom/max; Integrated Ocean Drilling Program / International Ocean Discovery Program; IODP; Joides Resolution; Leg169S; see reference(s); Species |
| url | https://doi.org/10.1594/PANGAEA.744812 |