Salinity tolerance of macroalgae Gracilaria birdiae
ABSTRACT: This study aimed to determining the manner in which salinity influenced the growth of the macroalgae Gracilaria birdiae, with the objective of identifying its tolerance limits to this abiotic variable. The specimens were submitted to nutrient-enriched water of varying salinities (0, 10, 20...
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| Format: | Article |
| Language: | English |
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Universidade Federal de Santa Maria
2020-11-01
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| Series: | Ciência Rural |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782021000100401&tlng=en |
| _version_ | 1798022326723280896 |
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| author | Joseanna de Paiva Alves Ambrosio Paula Bessa Junior Gustavo Gonzaga Henry-Silva |
| author_facet | Joseanna de Paiva Alves Ambrosio Paula Bessa Junior Gustavo Gonzaga Henry-Silva |
| author_sort | Joseanna de Paiva Alves |
| collection | DOAJ |
| description | ABSTRACT: This study aimed to determining the manner in which salinity influenced the growth of the macroalgae Gracilaria birdiae, with the objective of identifying its tolerance limits to this abiotic variable. The specimens were submitted to nutrient-enriched water of varying salinities (0, 10, 20, 30, 40, 50, and 60 ppt) for a 30-day period. Initially, under extreme salinity conditions (0 and 60 ppt) the growth of the G. birdiae suffered a negative impact. The macroalgae biomass exposed to 0 and 10 ppt salinities showed a reduction from day six until the experiment was completed. The macroalgae biomass exposed to salinities 20, 30, 40, and 50 ppt showed an increase, with no significant differences between the four treatments. This suggested that this salinity range was comfortable for this species to develop. We concluded that salinity is a crucial parameter which controls the growth of the G. birdiae. This seaweed was negatively influenced when exposed to values equal to or below 10 ppt and equal to 60 ppt, demonstrating good tolerance to salinities of 20, 30, 40 and 50 ppt. |
| first_indexed | 2024-04-11T17:28:05Z |
| format | Article |
| id | doaj.art-a6f169a0f5e649df8092a52543a6d542 |
| institution | Directory Open Access Journal |
| issn | 1678-4596 |
| language | English |
| last_indexed | 2024-04-11T17:28:05Z |
| publishDate | 2020-11-01 |
| publisher | Universidade Federal de Santa Maria |
| record_format | Article |
| series | Ciência Rural |
| spelling | doaj.art-a6f169a0f5e649df8092a52543a6d5422022-12-22T04:12:15ZengUniversidade Federal de Santa MariaCiência Rural1678-45962020-11-0151110.1590/0103-8478cr20190958Salinity tolerance of macroalgae Gracilaria birdiaeJoseanna de Paiva Alveshttps://orcid.org/0000-0002-1909-3388Ambrosio Paula Bessa Juniorhttps://orcid.org/0000-0001-5727-4510Gustavo Gonzaga Henry-Silvahttps://orcid.org/0000-0001-5067-225XABSTRACT: This study aimed to determining the manner in which salinity influenced the growth of the macroalgae Gracilaria birdiae, with the objective of identifying its tolerance limits to this abiotic variable. The specimens were submitted to nutrient-enriched water of varying salinities (0, 10, 20, 30, 40, 50, and 60 ppt) for a 30-day period. Initially, under extreme salinity conditions (0 and 60 ppt) the growth of the G. birdiae suffered a negative impact. The macroalgae biomass exposed to 0 and 10 ppt salinities showed a reduction from day six until the experiment was completed. The macroalgae biomass exposed to salinities 20, 30, 40, and 50 ppt showed an increase, with no significant differences between the four treatments. This suggested that this salinity range was comfortable for this species to develop. We concluded that salinity is a crucial parameter which controls the growth of the G. birdiae. This seaweed was negatively influenced when exposed to values equal to or below 10 ppt and equal to 60 ppt, demonstrating good tolerance to salinities of 20, 30, 40 and 50 ppt.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782021000100401&tlng=engrowthsaline stresslimiting factor. |
| spellingShingle | Joseanna de Paiva Alves Ambrosio Paula Bessa Junior Gustavo Gonzaga Henry-Silva Salinity tolerance of macroalgae Gracilaria birdiae Ciência Rural growth saline stress limiting factor. |
| title | Salinity tolerance of macroalgae Gracilaria birdiae |
| title_full | Salinity tolerance of macroalgae Gracilaria birdiae |
| title_fullStr | Salinity tolerance of macroalgae Gracilaria birdiae |
| title_full_unstemmed | Salinity tolerance of macroalgae Gracilaria birdiae |
| title_short | Salinity tolerance of macroalgae Gracilaria birdiae |
| title_sort | salinity tolerance of macroalgae gracilaria birdiae |
| topic | growth saline stress limiting factor. |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782021000100401&tlng=en |
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