Salinity and temperature tolerance of the invasive alga Undaria pinnatifida and native New Zealand kelps: Implications for competition

Bollen, Merle; Pilditch, Conrad A.; Battershill, Christopher N.; Bischof, Kai

doi:10.1007/s00227-016-2954-3

Cited by 31 publications

(24 citation statements)

References 67 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Undaria is predominantly found in fully saline conditions, with mean salinities below 27 psu generally limiting its range (Floc'h, Pajot, & Wallentinus, ; Saito, ; Watanabe et al., ). However, laboratory‐based experiments have shown that zoospore attachment may occur at salinities as low as 19 psu, while gametophytes and sporophytes may survive at salinities as low as 6 psu (although below 16 psu sporophytes may start to become damaged) (Bollen et al., ; Peteiro & Sanchez, ; Saito, ). Undaria is viable over a wide range of light regimes; however, changes in irradiance and day length will influence the rate of recruitment, growth, and photosynthesis in both gametophyte and sporophyte stages (Baez et al., ; Choi et al., ; Morelissen, Dudley, Geange, & Phillips, ; Pang & Luning, ).…”

Section: Undaria Pinnatifidamentioning

confidence: 99%

“…The ability to tolerate this large annual range is due to the survival of microscopic gametophyte and sporophyte stages which can persist at temperatures between −1 and 30°C (Morita, Kurashima, & Maegawa, 2003a;Saito, 1975). Sporophyte growth has a slightly more restricted temperature range of 0-27°C; optimum growth rate is site-specific, however, which tends to fall within 5-20°C, and senescence may be induced by exposure to temperatures at or above 24°C (Bollen, Pilditch, Battershill, & Bischof, 2016;Henkel & Hofmann, 2008;James & Shears, 2016a;Morita, Kurashima, & Maegawa, 2003b;Saito, 1975;Skriptsova et al, 2004). The reproductive sporophylls can be present between 5 and 27°C, and when mature, spore release and settlement occur between approximately 11-25°C (James & Shears, 2016b;Saito, 1975;Skriptsova et al, 2004;Thornber, Kinlnan, Graham, & Stachowicz, 2004).…”

Section: Biology Physiology and Native Ecologymentioning

confidence: 99%

“…Although less defined than the influence of temperature, many abiotic factors can affect the growth and distribution of Undaria, including salinity, light, day length, nutrients, and wave exposure. Undaria is predominantly found in fully saline conditions, with mean salinities below 27 psu generally limiting its range (Floc'h, Pajot, & Wallentinus, 1991;Saito, 1975;Watanabe et al, 2014 (Bollen et al, 2016;Peteiro & Sanchez, 2012;Saito, 1975). Undaria is viable over a wide range of light regimes; however, changes in irradiance and day length will influence the rate of recruitment, growth, and photosynthesis in both gametophyte and sporophyte stages (Baez et al, 2010;Choi et al, 2005;Morelissen, Dudley, Geange, & Phillips, 2013;Pang & Luning, 2004).…”

Section: Biology Physiology and Native Ecologymentioning

confidence: 99%

See 2 more Smart Citations

Undaria pinnatifida: A case study to highlight challenges in marine invasion ecology and management

Epstein

Smale

2017

Ecology and Evolution

View full text Add to dashboard Cite

Marine invasion ecology and management have progressed significantly over the last 30 years although many knowledge gaps and challenges remain. The kelp Undaria pinnatifida, or “Wakame,” has a global non‐native range and is considered one of the world's “worst” invasive species. Since its first recorded introduction in 1971, numerous studies have been conducted on its ecology, invasive characteristics, and impacts, yet a general consensus on the best approach to its management has not yet been reached. Here, we synthesize current understanding of this highly invasive species and adopt Undaria as a case study to highlight challenges in wider marine invasion ecology and management. Invasive species such as Undaria are likely to continue to spread and become conspicuous, prominent components of coastal marine communities. While in many cases, marine invasive species have detectable deleterious impacts on recipient communities, in many others their influence is often limited and location specific. Although not yet conclusive, Undaria may cause some ecological impact, but it does not appear to drive ecosystem change in most invaded regions. Targeted management actions have also had minimal success. Further research is needed before well‐considered, evidence‐based management decisions can be made. However, if Undaria was to become officially unmanaged in parts of its non‐native range, the presence of a highly productive, habitat former with commercial value and a broad ecological niche, could have significant economic and even environmental benefit. How science and policy reacts to the continued invasion of Undaria may influence how similar marine invasive species are handled in the future.

show abstract

Section: Undaria Pinnatifidamentioning

confidence: 99%

Section: Biology Physiology and Native Ecologymentioning

confidence: 99%

Section: Biology Physiology and Native Ecologymentioning

confidence: 99%

See 1 more Smart Citation

Undaria pinnatifida: A case study to highlight challenges in marine invasion ecology and management

Epstein

Smale

2017

Ecology and Evolution

View full text Add to dashboard Cite

show abstract

“…Pigment analysis was performed according to the method described in Bollen et al [82]. Then we calculated the percentage of initial values (before salinity acclimation) of violaxanthin and zeaxanthin concentrations.…”

Section: Methodsmentioning

confidence: 99%

Is geographical variation driving the transcriptomic responses to multiple stressors in the kelp Saccharina latissima?

Monteiro

Bischof

et al. 2019

BMC Plant Biol

Self Cite

View full text Add to dashboard Cite

BackgroundKelps (Laminariales, Phaeophyceae) are brown macroalgae of utmost ecological, and increasingly economic, importance on temperate to polar rocky shores. Omics approaches in brown algae are still scarce and knowledge of their acclimation mechanisms to the changing conditions experienced in coastal environments can benefit from the application of RNA-sequencing.Despite evidence of ecotypic differentiation, transcriptomic responses from distinct geographical locations have, to our knowledge, never been studied in the sugar kelp Saccharina latissima so far.ResultsIn this study we investigated gene expression responses using RNA-sequencing of S. latissima from environments with contrasting temperature and salinity conditions – Roscoff, in temperate eastern Atlantic, and Spitsbergen in the Arctic. Juvenile sporophytes derived from uniparental stock cultures from both locations were pre-cultivated at 8 °C and SA 30. Sporophytes acclimated to 0 °C, 8 °C and 15 °C were exposed to a low salinity treatment (SA 20) for 24 h. Hyposalinity had a greater impact at the transcriptomic level than the temperature alone, and its effects were modulated by temperature. Namely, photosynthesis and pigment synthesis were extensively repressed by low salinity at low temperatures. Although some responses were shared among sporophytes from the different sites, marked differences were revealed by principal component analysis, differential expression and GO enrichment. The interaction between low temperature and low salinity drove the largest changes in gene expression in sporophytes from Roscoff while specimens from Spitsbergen required more metabolic adjustment at higher temperatures. Moreover, genes related to cell wall adjustment were differentially expressed between Spitsbergen and Roscoff control samples.ConclusionsOur study reveals interactive effects of temperature and salinity on transcriptomic profiles in S. latissima. Moreover, our data suggest that under identical culture conditions sporophytes from different locations diverge in their transcriptomic responses. This is probably connected to variations in temperature and salinity in their respective environment of origin. The current transcriptomic results support the plastic response pattern in sugar kelp which is a species with several reported ecotypes. Our data provide the baseline for a better understanding of the underlying processes of physiological plasticity and may help in the future to identify strains adapted to specific environments and its genetic control.

show abstract

“…shallow rocky reefs). However, it is generally recorded at highest abundance where the cover or density of native canopy-forming macroalgae are reduced or absent, often due to abiotic factors such as depth or tidal height 22,23 , wave exposure 24 , reduced salinity 25 or substrate type, aspect, and stability 23,24,26–28 .…”

Section: Introductionmentioning

confidence: 99%

Identifying niche and fitness dissimilarities in invaded marine macroalgal canopies within the context of contemporary coexistence theory

Epstein

Hawkins

Smale

2019

Sci Rep

View full text Add to dashboard Cite

Contemporary coexistence theory provides a framework for predicting invasiveness and impact of Invasive Non-Native Species (INNS) by incorporating differences in niche and fitness between INNS and co-occurring native species. The widespread invasive kelp Undaria pinnatifida is considered a high-risk INNS, although a robust evidence base regarding its invasiveness and impact is lacking in many regions. Invaded macroalgal canopies at nine coastal sites in the southwest UK were studied over three years to discern whether Undaria is coexisting or competing with native canopy-forming species across different habitat types. Spatial, temporal and depth-related trends in species distributions and abundance were recorded within intertidal and subtidal rocky reef as well as on marina pontoons. A primary succession experiment also examined competitive interactions between species. In rocky reef habitats, Undaria had lower fitness compared to long-lived native perennials, but was able to coexist due to niche dissimilarity between species. In contrast, Undaria was likely to be competing with short-lived native annuals on rocky reef due to large niche overlap and similar fitness. In marina habitats, Undaria dominated over all other canopy formers due to low niche diversification and higher fitness. Generalisations on INNS impact cannot be made across habitats or species, without considering many abiotic factors and biotic interactions.

show abstract

Salinity and temperature tolerance of the invasive alga Undaria pinnatifida and native New Zealand kelps: Implications for competition

Cited by 31 publications

References 67 publications

Undaria pinnatifida: A case study to highlight challenges in marine invasion ecology and management

Undaria pinnatifida: A case study to highlight challenges in marine invasion ecology and management

Is geographical variation driving the transcriptomic responses to multiple stressors in the kelp Saccharina latissima?

Identifying niche and fitness dissimilarities in invaded marine macroalgal canopies within the context of contemporary coexistence theory

Contact Info

Product

Resources

About