Increased utility of the Secchi disk to assess eutrophication in coastal waters with freshwater run-off (Record no. 48336)
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| fixed length control field | 02032nam a2200181Ia 4500 |
| 003 - CONTROL NUMBER IDENTIFIER | |
| control field | MX-MdCICY |
| 005 - DATE AND TIME OF LATEST TRANSACTION | |
| control field | 20250625153936.0 |
| 040 ## - CATALOGING SOURCE | |
| Transcribing agency | CICY |
| 090 ## - LOCALLY ASSIGNED LC-TYPE CALL NUMBER (OCLC); LOCAL CALL NUMBER (RLIN) | |
| Classification number (OCLC) (R) ; Classification number, CALL (RLIN) (NR) | B-14142 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION | |
| fixed length control field | 250602s9999 xx |||||s2 |||| ||und|d |
| 245 10 - TITLE STATEMENT | |
| Title | Increased utility of the Secchi disk to assess eutrophication in coastal waters with freshwater run-off |
| 490 0# - SERIES STATEMENT | |
| Volume/sequential designation | Journal of Marine Systems, 60(1-2), p.19-29, 2006 |
| 520 3# - SUMMARY, ETC. | |
| Summary, etc. | Changed local supply of nutrients in coastal waters can lead to changed content of phytoplankton. This influences the visibility, and thereby the water quality in the surface layers, which can be observed by e.g., the Secchi disk. However, the translation of Secchi depth observations to plankton content is complicated by the existence of light attenuating matter entering with run-off from land. To increase the utility of Secchi depth measurements to assess local eutrophication in coastal waters, a formula for calculating the Secchi depth in areas influenced by freshwater was developed. The study includes data analysis of Secchi depth, chlorophyll content, wind speed, and freshwater height estimated from salinity at two stations in the Gullmar Fjord in Sweden. The correlation coefficient between calculated and observed Secchi depths at the inner station close to the freshwater source increased from 0.63 using chlorophyll as the only dependent parameter, to 0.75 ( p b0.001)including the accumulated freshwater in the surface layer from run off, and wind speed. At the outer station close to the mouth of the fjord it increased from 0.68 to 0.70 ( p b0.001). The correlation between observed and calculated Secchi depth decreased considerably, if the restriction to observations made at sun elevations higher than about 308 above the horizon was relaxed. |
| 700 12 - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Erlandsson, C.P. |
| 700 12 - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Stigebrandt, A. |
| 856 40 - ELECTRONIC LOCATION AND ACCESS | |
| Uniform Resource Identifier | <a href="https://drive.google.com/file/d/1FBcWHHNnLZ9j6hs3o_3PQ0CX40SHMOHl/view?usp=drivesdk">https://drive.google.com/file/d/1FBcWHHNnLZ9j6hs3o_3PQ0CX40SHMOHl/view?usp=drivesdk</a> |
| Public note | Para ver el documento ingresa a Google con tu cuenta: @cicy.edu.mx |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) | |
| Source of classification or shelving scheme | Clasificación local |
| Koha item type | Documentos solicitados |
| Lost status | Source of classification or shelving scheme | Damaged status | Not for loan | Collection | Home library | Current library | Shelving location | Date acquired | Total checkouts | Full call number | Date last seen | Price effective from | Koha item type |
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| Clasificación local | Ref1 | CICY | CICY | Documento préstamo interbibliotecario | 25.06.2025 | B-14142 | 25.06.2025 | 25.06.2025 | Documentos solicitados |