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- Publisher Website: 10.1007/s10811-021-02382-7
- Scopus: eid_2-s2.0-85100667136
- WOS: WOS:000615594700001
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Article: Narrow range of temperature and irradiance supports optimal development of Lessonia corrugata (Ochrophyta) gametophytes: implications for kelp aquaculture and responses to climate change
Title | Narrow range of temperature and irradiance supports optimal development of Lessonia corrugata (Ochrophyta) gametophytes: implications for kelp aquaculture and responses to climate change |
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Authors | |
Keywords | Gametophytes Irradiance Laminariales Lessonia corrugata Macroalgae |
Issue Date | 2021 |
Publisher | Springer Netherlands. The Journal's web site is located at http://link.springer.com/journal/10811 |
Citation | Journal of Applied Phycology, 2021, v. 33, p. 1721-1730 How to Cite? |
Abstract | The kelp Lessonia corrugata (Ochrophyta, Laminariales) is being developed for integrated multi-trophic aquaculture (IMTA) trials in the vicinity of salmon cages in Tasmania, Australia. Gametophytes are vegetally maintained before seeding on hatchery twine; however, the optimal temperature and light conditions for growth and sexual development are unknown. We measured vegetative size of female and male gametophytes and sexual development of females over a range of temperatures and irradiances using a temperature gradient table and neutral density light filters. Over a 4-week experiment, gametophytes were exposed to a combination of thermal (5.7–24.9 °C) and irradiance (10–100 μmol photons m−2 s−1) gradients, to assess biological performance. At the temperature extremes (hottest = 24.9 °C, coldest = 5.7 °C), we observed the critical thermal limits for this species and the results reveal a narrow optimal temperature range for growth and sexual development between 15.7 and 17.9 °C, with irradiances between 40 and 100 μmol photons m−2 s−1 resulting in fertile female gametophytes. Lessonia corrugata inhabits a small geographic range, found only around Tasmania, south of the Australian mainland, hence oceanic changes such as ongoing increases in sea surface temperatures (SSTs), and altered irradiance regimes may limit recruitment of the early microscopic life stages in the future. Our findings provide optimised culture conditions for aquaculture and information to predict the future geographic range of L. corrugata under ocean global change. |
Persistent Identifier | http://hdl.handle.net/10722/304394 |
ISSN | 2023 Impact Factor: 2.8 2023 SCImago Journal Rankings: 0.605 |
ISI Accession Number ID |
DC Field | Value | Language |
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dc.contributor.author | Pain, ER | - |
dc.contributor.author | Schmid, M | - |
dc.contributor.author | Gaitan Espitia, JD | - |
dc.contributor.author | Castle, J | - |
dc.contributor.author | Jameson, I | - |
dc.contributor.author | Sanderson, JC | - |
dc.contributor.author | Hurd, CL | - |
dc.date.accessioned | 2021-09-23T08:59:25Z | - |
dc.date.available | 2021-09-23T08:59:25Z | - |
dc.date.issued | 2021 | - |
dc.identifier.citation | Journal of Applied Phycology, 2021, v. 33, p. 1721-1730 | - |
dc.identifier.issn | 0921-8971 | - |
dc.identifier.uri | http://hdl.handle.net/10722/304394 | - |
dc.description.abstract | The kelp Lessonia corrugata (Ochrophyta, Laminariales) is being developed for integrated multi-trophic aquaculture (IMTA) trials in the vicinity of salmon cages in Tasmania, Australia. Gametophytes are vegetally maintained before seeding on hatchery twine; however, the optimal temperature and light conditions for growth and sexual development are unknown. We measured vegetative size of female and male gametophytes and sexual development of females over a range of temperatures and irradiances using a temperature gradient table and neutral density light filters. Over a 4-week experiment, gametophytes were exposed to a combination of thermal (5.7–24.9 °C) and irradiance (10–100 μmol photons m−2 s−1) gradients, to assess biological performance. At the temperature extremes (hottest = 24.9 °C, coldest = 5.7 °C), we observed the critical thermal limits for this species and the results reveal a narrow optimal temperature range for growth and sexual development between 15.7 and 17.9 °C, with irradiances between 40 and 100 μmol photons m−2 s−1 resulting in fertile female gametophytes. Lessonia corrugata inhabits a small geographic range, found only around Tasmania, south of the Australian mainland, hence oceanic changes such as ongoing increases in sea surface temperatures (SSTs), and altered irradiance regimes may limit recruitment of the early microscopic life stages in the future. Our findings provide optimised culture conditions for aquaculture and information to predict the future geographic range of L. corrugata under ocean global change. | - |
dc.language | eng | - |
dc.publisher | Springer Netherlands. The Journal's web site is located at http://link.springer.com/journal/10811 | - |
dc.relation.ispartof | Journal of Applied Phycology | - |
dc.rights | Accepted Manuscript (AAM) This is a post-peer-review, pre-copyedit version of an article published in [insert journal title]. The final authenticated version is available online at: https://doi.org/[insert DOI] | - |
dc.subject | Gametophytes | - |
dc.subject | Irradiance | - |
dc.subject | Laminariales | - |
dc.subject | Lessonia corrugata | - |
dc.subject | Macroalgae | - |
dc.title | Narrow range of temperature and irradiance supports optimal development of Lessonia corrugata (Ochrophyta) gametophytes: implications for kelp aquaculture and responses to climate change | - |
dc.type | Article | - |
dc.identifier.email | Gaitan Espitia, JD: jdgaitan@hku.hk | - |
dc.identifier.authority | Gaitan Espitia, JD=rp02384 | - |
dc.description.nature | link_to_subscribed_fulltext | - |
dc.identifier.doi | 10.1007/s10811-021-02382-7 | - |
dc.identifier.scopus | eid_2-s2.0-85100667136 | - |
dc.identifier.hkuros | 325481 | - |
dc.identifier.volume | 33 | - |
dc.identifier.spage | 1721 | - |
dc.identifier.epage | 1730 | - |
dc.identifier.isi | WOS:000615594700001 | - |
dc.publisher.place | Netherlands | - |