USE AND EFFECT OF FREEZE BRANDING ON ROACH (RUTILUS RUTILUS L.)
We tested the effects of freeze branding on growth, survival and mark retention in roach Rutilus rutilus L. (82-268 mm in total length). Markings were applied at two positions on the skin: (1) the depressed area above the anal fin, (2) the muscles above the lateral line and between the caudal and do...
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| Format: | Article |
| Language: | English |
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EDP Sciences
2004-04-01
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| Series: | Knowledge and Management of Aquatic Ecosystems |
| Subjects: | |
| Online Access: | http://dx.doi.org/10.1051/kmae:2004025 |
| _version_ | 1818426490168016896 |
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| author | EVRARD G. |
| author_facet | EVRARD G. |
| author_sort | EVRARD G. |
| collection | DOAJ |
| description | We tested the effects of freeze branding on growth, survival and mark retention in roach Rutilus rutilus L. (82-268 mm in total length). Markings were applied at two positions on the skin: (1) the depressed area above the anal fin, (2) the muscles above the lateral line and between the caudal and dorsal fins. A control group received no mark. The experiment duration was 30 days, and 120 roach were selected and distributed into three lots. Retention rates were high and ranged between 94% for position 2 and 100% for position 1. Survival rate after 1 month was 87% for freeze branded roach at position 2, 90% for position 1 and 92% for unmarked fish. These differences were not statistically significant. A significant decrease of linear growth was observed for individuals marked at position 2 (3.2 mm.month-1), but the implication of the brand itself was unclear. We discuss the short- and long-term properties of freeze branding techniques on roach. |
| first_indexed | 2024-12-14T14:30:39Z |
| format | Article |
| id | doaj.art-2ec57755cbf7453d9c217af0fcb65cf5 |
| institution | Directory Open Access Journal |
| issn | 1961-9502 |
| language | English |
| last_indexed | 2024-12-14T14:30:39Z |
| publishDate | 2004-04-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | Knowledge and Management of Aquatic Ecosystems |
| spelling | doaj.art-2ec57755cbf7453d9c217af0fcb65cf52022-12-21T22:57:49ZengEDP SciencesKnowledge and Management of Aquatic Ecosystems1961-95022004-04-010374354210.1051/kmae:2004025kmae2004374p035USE AND EFFECT OF FREEZE BRANDING ON ROACH (RUTILUS RUTILUS L.)EVRARD G.We tested the effects of freeze branding on growth, survival and mark retention in roach Rutilus rutilus L. (82-268 mm in total length). Markings were applied at two positions on the skin: (1) the depressed area above the anal fin, (2) the muscles above the lateral line and between the caudal and dorsal fins. A control group received no mark. The experiment duration was 30 days, and 120 roach were selected and distributed into three lots. Retention rates were high and ranged between 94% for position 2 and 100% for position 1. Survival rate after 1 month was 87% for freeze branded roach at position 2, 90% for position 1 and 92% for unmarked fish. These differences were not statistically significant. A significant decrease of linear growth was observed for individuals marked at position 2 (3.2 mm.month-1), but the implication of the brand itself was unclear. We discuss the short- and long-term properties of freeze branding techniques on roach.http://dx.doi.org/10.1051/kmae:2004025Marking techniqueRetentionSurvival and Growth ratesCyprinids |
| spellingShingle | EVRARD G. USE AND EFFECT OF FREEZE BRANDING ON ROACH (RUTILUS RUTILUS L.) Knowledge and Management of Aquatic Ecosystems Marking technique Retention Survival and Growth rates Cyprinids |
| title | USE AND EFFECT OF FREEZE BRANDING ON ROACH (RUTILUS RUTILUS L.) |
| title_full | USE AND EFFECT OF FREEZE BRANDING ON ROACH (RUTILUS RUTILUS L.) |
| title_fullStr | USE AND EFFECT OF FREEZE BRANDING ON ROACH (RUTILUS RUTILUS L.) |
| title_full_unstemmed | USE AND EFFECT OF FREEZE BRANDING ON ROACH (RUTILUS RUTILUS L.) |
| title_short | USE AND EFFECT OF FREEZE BRANDING ON ROACH (RUTILUS RUTILUS L.) |
| title_sort | use and effect of freeze branding on roach rutilus rutilus l |
| topic | Marking technique Retention Survival and Growth rates Cyprinids |
| url | http://dx.doi.org/10.1051/kmae:2004025 |
| work_keys_str_mv | AT evrardg useandeffectoffreezebrandingonroachrutilusrutilusl |