THE EFFECT OF THE LIPID AND FATTY ACID STATUS OF ATLANTIC SALMON, SALMO SALAR L., FINGERLINGS ON THEIR PRIMARY DISPERSAL AND FORMATION OF PHENOTYPIC GROUPS
<p align="left">A comparative study of the lipid metabolism in Atlantic salmon fingerlings staying after hatching near their spawning redds along the banks of the Varzuga River main channel (at rapids and riffles) and those who had migrated to tributaries – the Arenga, the Pjatka and...
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| Format: | Article |
| Language: | English |
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Karelian Research Centre of the Russian Academy of Sciences
2016-06-01
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| Series: | Transactions of the Karelian Research Centre of the Russian Academy of Sciences |
| Subjects: | |
| Online Access: | http://journals.krc.karelia.ru/index.php/biology/article/view/352 |
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| author | Zinaida Nefedova Svetlana Murzina Svetlana Pekkoeva Alexey Veselov Nina Nemova |
| author_facet | Zinaida Nefedova Svetlana Murzina Svetlana Pekkoeva Alexey Veselov Nina Nemova |
| author_sort | Zinaida Nefedova |
| collection | DOAJ |
| description | <p align="left">A comparative study of the lipid metabolism in Atlantic salmon fingerlings staying after hatching near their spawning redds along the banks of the Varzuga River main channel (at rapids and riffles) and those who had migrated to tributaries – the Arenga, the Pjatka and the Falaley. The choice of habitats by fingerlings after hatching and dispersal affects the quantitative characteristics of lipids and fatty acids, and is supported by the organism’s adaptive systems, including variations in the ratios of individual lipid and fatty acid classes within physiological limits. Fingerlings from the Pjatka had higher length-weight values, the energy/structural lipids ratio(TAG+ECHOL/PL+CHOL), and the ratio of essential fatty acids 18:3ω-3/18:2ω-6 as compared to fish from other studied biotopes. The combination of ecological and trophic conditions (temperature, water flow rate, depth, riverbed particle size composition and fouling, species composition and amount of food items, and their availability) in the Pjatka are more favorable for the growth and development of fingerlings. The identified biochemical differences between the fingerlings that had migrated to the tributaries and those remaining along the main channel banks may be the basis for the formation of steady fish differentiation into groups with different lipid status and length-weight indices during further development (in fish aged 1+ and 2+). This differentiation in 0+ Atlantic salmon can be considered as a start of intrapopulation heterogeneity, affecting further choices on the fish life strategy.</p> |
| first_indexed | 2024-12-21T04:50:28Z |
| format | Article |
| id | doaj.art-38a8f5b040b04179aadfbb94c05d96d2 |
| institution | Directory Open Access Journal |
| issn | 1997-3217 2312-4504 |
| language | English |
| last_indexed | 2024-12-21T04:50:28Z |
| publishDate | 2016-06-01 |
| publisher | Karelian Research Centre of the Russian Academy of Sciences |
| record_format | Article |
| series | Transactions of the Karelian Research Centre of the Russian Academy of Sciences |
| spelling | doaj.art-38a8f5b040b04179aadfbb94c05d96d22022-12-21T19:15:27ZengKarelian Research Centre of the Russian Academy of SciencesTransactions of the Karelian Research Centre of the Russian Academy of Sciences1997-32172312-45042016-06-0169910510.17076/eb352268THE EFFECT OF THE LIPID AND FATTY ACID STATUS OF ATLANTIC SALMON, SALMO SALAR L., FINGERLINGS ON THEIR PRIMARY DISPERSAL AND FORMATION OF PHENOTYPIC GROUPSZinaida Nefedova0Svetlana Murzina1Svetlana Pekkoeva2Alexey Veselov3Nina Nemova4Institute of Biology, Karelian Research Centre, Russian Academy of SciencesInstitute of Biology, Karelian Research Centre, Russian Academy of SciencesInstitute of Biology, Karelian Research Centre, Russian Academy of SciencesInstitute of Biology, Karelian Research Centre, Russian Academy of SciencesInstitute of Biology, Karelian Research Centre, Russian Academy of Sciences<p align="left">A comparative study of the lipid metabolism in Atlantic salmon fingerlings staying after hatching near their spawning redds along the banks of the Varzuga River main channel (at rapids and riffles) and those who had migrated to tributaries – the Arenga, the Pjatka and the Falaley. The choice of habitats by fingerlings after hatching and dispersal affects the quantitative characteristics of lipids and fatty acids, and is supported by the organism’s adaptive systems, including variations in the ratios of individual lipid and fatty acid classes within physiological limits. Fingerlings from the Pjatka had higher length-weight values, the energy/structural lipids ratio(TAG+ECHOL/PL+CHOL), and the ratio of essential fatty acids 18:3ω-3/18:2ω-6 as compared to fish from other studied biotopes. The combination of ecological and trophic conditions (temperature, water flow rate, depth, riverbed particle size composition and fouling, species composition and amount of food items, and their availability) in the Pjatka are more favorable for the growth and development of fingerlings. The identified biochemical differences between the fingerlings that had migrated to the tributaries and those remaining along the main channel banks may be the basis for the formation of steady fish differentiation into groups with different lipid status and length-weight indices during further development (in fish aged 1+ and 2+). This differentiation in 0+ Atlantic salmon can be considered as a start of intrapopulation heterogeneity, affecting further choices on the fish life strategy.</p>http://journals.krc.karelia.ru/index.php/biology/article/view/352lipidsfatty acidsfingerlingsatlantic salmonthe varzuga river |
| spellingShingle | Zinaida Nefedova Svetlana Murzina Svetlana Pekkoeva Alexey Veselov Nina Nemova THE EFFECT OF THE LIPID AND FATTY ACID STATUS OF ATLANTIC SALMON, SALMO SALAR L., FINGERLINGS ON THEIR PRIMARY DISPERSAL AND FORMATION OF PHENOTYPIC GROUPS Transactions of the Karelian Research Centre of the Russian Academy of Sciences lipids fatty acids fingerlings atlantic salmon the varzuga river |
| title | THE EFFECT OF THE LIPID AND FATTY ACID STATUS OF ATLANTIC SALMON, SALMO SALAR L., FINGERLINGS ON THEIR PRIMARY DISPERSAL AND FORMATION OF PHENOTYPIC GROUPS |
| title_full | THE EFFECT OF THE LIPID AND FATTY ACID STATUS OF ATLANTIC SALMON, SALMO SALAR L., FINGERLINGS ON THEIR PRIMARY DISPERSAL AND FORMATION OF PHENOTYPIC GROUPS |
| title_fullStr | THE EFFECT OF THE LIPID AND FATTY ACID STATUS OF ATLANTIC SALMON, SALMO SALAR L., FINGERLINGS ON THEIR PRIMARY DISPERSAL AND FORMATION OF PHENOTYPIC GROUPS |
| title_full_unstemmed | THE EFFECT OF THE LIPID AND FATTY ACID STATUS OF ATLANTIC SALMON, SALMO SALAR L., FINGERLINGS ON THEIR PRIMARY DISPERSAL AND FORMATION OF PHENOTYPIC GROUPS |
| title_short | THE EFFECT OF THE LIPID AND FATTY ACID STATUS OF ATLANTIC SALMON, SALMO SALAR L., FINGERLINGS ON THEIR PRIMARY DISPERSAL AND FORMATION OF PHENOTYPIC GROUPS |
| title_sort | effect of the lipid and fatty acid status of atlantic salmon salmo salar l fingerlings on their primary dispersal and formation of phenotypic groups |
| topic | lipids fatty acids fingerlings atlantic salmon the varzuga river |
| url | http://journals.krc.karelia.ru/index.php/biology/article/view/352 |
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