Abundance and growth of larval and early juvenile cod ( Gadus morhua) in relation to variable environmental conditions west of Iceland
Around Iceland, the west- and north-flowing coastal current, induced by freshwater runoff, provides a transport mechanism for pelagic eggs and larvae derived from the main spawning grounds off the southwest coast to the main nursery grounds off the north coast. In the present study, abundance and gr...
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| Veröffentlicht in: | Deep-sea research. Part 2. Topical studies in oceanography 2009-10, Vol.56 (21), p.1992-2000 |
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| container_end_page | 2000 |
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| container_issue | 21 |
| container_start_page | 1992 |
| container_title | Deep-sea research. Part 2. Topical studies in oceanography |
| container_volume | 56 |
| creator | Jonasson, Jonas P. Gunnarsson, Björn Marteinsdottir, Gudrun |
| description | Around Iceland, the west- and north-flowing coastal current, induced by freshwater runoff, provides a transport mechanism for pelagic eggs and larvae derived from the main spawning grounds off the southwest coast to the main nursery grounds off the north coast. In the present study, abundance and growth of larval and juvenile cod were recorded during a series of cruises conducted in June/July of 1998–2001 along the drift route southwest and west of Iceland. The cruises provided information on approximately 2–8-week-old individuals. Hatch dates and abundance varied greatly between years. Hatch dates ranged from Julian Day 92 to 167. Growth rate differed also between the years studied. Relative abundance was generally greatest in temperatures above 7.5
°C and in low-salinity waters, characteristic for the coastal current. The study demonstrates the link between the coastal current and larval/juvenile distribution, thus providing evidence for its importance in promoting successful recruitment of the Icelandic cod stock. |
| doi_str_mv | 10.1016/j.dsr2.2008.11.010 |
| format | Article |
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°C and in low-salinity waters, characteristic for the coastal current. 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| fulltext | fulltext |
| identifier | ISSN: 0967-0645 |
| ispartof | Deep-sea research. Part 2. Topical studies in oceanography, 2009-10, Vol.56 (21), p.1992-2000 |
| issn | 0967-0645 1879-0100 |
| language | eng |
| recordid | cdi_proquest_miscellaneous_34847342 |
| source | ScienceDirect Journals (5 years ago - present) |
| subjects | Abundance Coastal currents Coastal environments Cod Deep sea Earth sciences Earth, ocean, space Environmental conditions Exact sciences and technology External geophysics Gadus morhua Grounds Growth Hatches Larvae Marine Marine and continental quaternary Marine geology Physics of the oceans Southwest Surficial geology |
| title | Abundance and growth of larval and early juvenile cod ( Gadus morhua) in relation to variable environmental conditions west of Iceland |
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