Pregled bibliografske jedinice broj: 1241953
Phytoplankton diversity and chemotaxonomy in contrasting North Pacific ecosystems
Phytoplankton diversity and chemotaxonomy in contrasting North Pacific ecosystems // PeerJ, 11 (2023), 14501, 30 doi:.org/10.7717/peerj.14501 (međunarodna recenzija, članak, znanstveni)
CROSBI ID: 1241953 Za ispravke kontaktirajte CROSBI podršku putem web obrasca
Naslov
Phytoplankton diversity and chemotaxonomy in contrasting North Pacific ecosystems
Autori
Matek, Antonija ; Bosak, Sunčica ; Šupraha, Luka ; Neeley, ; Neleey, Aimee ; Višić, Hrvoje ; Cetinić, Ivona ; Ljubešić, Zrinka
Izvornik
PeerJ (2167-8359) 11
(2023);
14501, 30
Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni
Ključne riječi
Phytoplankton taxonomy, Pigments, Trophic state, Particle abundance
Sažetak
Background. Phytoplankton is the base of majority of ocean ecosystems. It is responsible for half of the global primary production, and different phytoplankton taxa have a unique role in global biogeochemical cycles. In addition, phytoplankton abundance and diversity are highly susceptible to climate induced changes, hence monitoring of phytoplankton and its diversity is important and necessary. Methods. Water samples for phytoplankton and photosynthetic pigment analyses were collected in boreal winter 2017, along transect in the North Pacific Subtropical Gyre (NPSG) and the California Current System (CCS). Phytoplankton community was analyzed using light and scanning electron microscopy and photosynthetic pigments by high-performance liquid chromatography. To describe distinct ecosystems, monthly average satellite data of MODIS Aqua Sea Surface temperature and Chlorophyll a concentration, as well as Apparent Visible Wavelength were used. Results. A total of 207 taxa have been determined, mostly comprised of coccolithophores (35.5%), diatoms (25.2%) and dinoflagellates (19.5%) while cryptophytes, phytoflagellates and silicoflagellates were included in the group ``others" (19.8%). Phytoplankton spatial distribution was distinct, indicating variable planktonic dispersal rates and specific adaptation to ecosystems. Dinoflagellates, and nano-scale coccolithophores dominated NPSG, while micro-scale diatoms, and cryptophytes prevailed in CCS. A clear split between CCS and NPSG is evident in dendogram visualising LINKTREE constrained binary divisive clustering analysis done on phytoplankton counts and pigment concentrations. Of all pigments determined, alloxanthin, zeaxanthin, divinyl chlorophyll b and lutein have highest correlation to phytoplankton counts. Conclusion. Combining chemotaxonomy and microscopy is an optimal method to determine phytoplankton diversity on a large-scale transect. Distinct communities between the two contrasting ecosystems of North Pacific reveal phytoplankton groups specific adaptations to trophic state, and support the hypothesis of shift from micro to nano-scale taxa due to sea surface temperatures rising, favoring stratification and oligotrophic conditions.
Izvorni jezik
Engleski
Znanstvena područja
Biologija, Interdisciplinarne prirodne znanosti
POVEZANOST RADA
Projekti:
HRZZ-UIP-2013-11-6433 - Bioindikatori vodenih masa u Jadranu (BIOTA) (Ljubešić, Zrinka, HRZZ - 2013-11) ( CroRIS)
HRZZ-IP-2020-02-9524 - Utjecaj valova vezanih uz otok na primarnu produkciju (ISLAND) (Ljubešić, Zrinka, HRZZ - 2020-02) ( CroRIS)
Ustanove:
Prirodoslovno-matematički fakultet, Zagreb
Profili:
Sunčica Bosak
(autor)
Hrvoje Višić
(autor)
Zrinka Ljubešić
(autor)
Antonija Matek
(autor)
Ivona Cetinić
(autor)
Citiraj ovu publikaciju:
Časopis indeksira:
- Web of Science Core Collection (WoSCC)
- Science Citation Index Expanded (SCI-EXP)
- SCI-EXP, SSCI i/ili A&HCI
- Scopus