Phytoplankton distribution along the eastern coast of the USA. I. Phytoplankton composition

Marshall, Harold G.

doi:10.1007/bf00391488

Cited by 31 publications

(14 citation statements)

References 17 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Kofoid and Swezy, Schiller and Dodge all report the species with no new observations [19], [21], [24]. This species has been observed on the east coast of the USA [62], the Mediterranean Sea [55], [132] and in Scandinavian waters (http://nordicmicroalgae.org/). …”

Section: Resultsmentioning

confidence: 99%

The Taxonomic Significance of Species That Have Only Been Observed Once: The Genus Gymnodinium (Dinoflagellata) as an Example

2012

View full text Add to dashboard Cite

Taxonomists have been tasked with cataloguing and quantifying the Earth’s biodiversity. Their progress is measured in code-compliant species descriptions that include text, images, type material and molecular sequences. It is from this material that other researchers are to identify individuals of the same species in future observations. It has been estimated that 13% to 22% (depending on taxonomic group) of described species have only ever been observed once. Species that have only been observed at the time and place of their original description are referred to as oncers. Oncers are important to our current understanding of biodiversity. They may be validly described species that are members of a rare biosphere, or they may indicate endemism, or that these species are limited to very constrained niches. Alternatively, they may reflect that taxonomic practices are too poor to allow the organism to be re-identified or that the descriptions are unknown to other researchers. If the latter are true, our current tally of species will not be an accurate indication of what we know. In order to investigate this phenomenon and its potential causes, we examined the microbial eukaryote genus Gymnodinium. This genus contains 268 extant species, 103 (38%) of which have not been observed since their original description. We report traits of the original descriptions and interpret them in respect to the status of the species. We conclude that the majority of oncers were poorly described and their identity is ambiguous. As a result, we argue that the genus Gymnodinium contains only 234 identifiable species. Species that have been observed multiple times tend to have longer descriptions, written in English. The styles of individual authors have a major effect, with a few authors describing a disproportionate number of oncers. The information about the taxonomy of Gymnodinium that is available via the internet is incomplete, and reliance on it will not give access to all necessary knowledge. Six new names are presented – Gymnodinium campbelli for the homonymous name Gymnodinium translucens Campbell 1973, Gymnodinium antarcticum for the homonymous name Gymnodinium frigidum Balech 1965, Gymnodinium manchuriensis for the homonymous name Gymnodinium autumnale Skvortzov 1968, Gymnodinium christenum for the homonymous name Gymnodinium irregulare Christen 1959, Gymnodinium conkufferi for the homonymous name Gymnodinium irregulare Conrad & Kufferath 1954 and Gymnodinium chinensis for the homonymous name Gymnodinium frigidum Skvortzov 1968.

show abstract

Section: Resultsmentioning

confidence: 99%

The Taxonomic Significance of Species That Have Only Been Observed Once: The Genus Gymnodinium (Dinoflagellata) as an Example

2012

View full text Add to dashboard Cite

show abstract

“…N. closterium, Nitzschia fraudulenta (=pungens/ pacifica), Nitzschia lineola (=seriata/delicatissima), and Thalassionema frauenfeldii (=nitzschioides), are also found in temperate waters (e.g. Marshall 1976), coastal upwelling systems (Blasco et al 198 I), and oceanic divergence zones (Jimenez 198 1).…”

Section: Discussionmentioning

confidence: 99%

Net in situ growth rates of phytoplankton in an oligotrophic, tropical shelf ecosystem

Furnas

1991

Limnology & Oceanography

View full text Add to dashboard Cite

In situ growth rates of phytoplankton in tropical shelf waters of the Great Barrier Reef were measured with diffusion chambers. A broad disparity was observed between the growth responses of diatom species or assemblages (p,,,. = 2-5 doublings d-l) and assemblages of microflagellatcs, nonmotile ultraplankton, or phototrophic picoplankton (p,,,, < 2 doublings d-l). Several diatom species or groups consistently grew faster than the community Chl doubling rate (H,,, = 1.6 doublings d-r). Most dominant species and groups, regardless of taxonomic affiliation, exhibited the potential for high relative growth rates (r/a,., > 0.5) at ambient concentrations of dissolved inorganic N ~0.2 pm01 liter-' and the time-averaged diurnal irradiances in situ >50 pEinst m-2 SK'. If relative constancy in phytoplankton standing crop and composition is to bc maintained, grazing rates must vary widely at the species level, but be broadly similar to growth rates over time scales of days. Although the full 40-80-m water column in the central Great Barrier Reef lies the euphotic zone, phytoplankton growth rates near the bottom seem to bc light limited.

show abstract

“…There have been many studies on phytoplankton assemblages since the mid-20th century (e.g., Riley, 1957;Okada, 1971), especially Hulburt (1962Hulburt ( , 1963aHulburt ( and b, 1964Hulburt ( , 1970Hulburt ( , 1990 and Marshall (1966Marshall ( , 1968Marshall ( , 1969aMarshall ( and b, 1973Marshall ( , 1976, but few studies on modern coccolithophores have been carried out in the China Sea areas.…”

Section: Introductionmentioning

confidence: 99%

Summer and winter living coccolithophores in the Yellow Sea and the East China Sea

Sun

Feng

et al. 2014

Biogeosciences

View full text Add to dashboard Cite

Abstract. This paper describes the distribution of living coccolithophores (LCs) in the Yellow Sea and the East China Sea in summer and winter, and its relationship with environmental factors by canonical correspondence analysis (CCA). We carried out a series of investigations on LCs distribution in the Yellow Sea and the East China Sea in July and December 2011. 210 samples from different depths were collected from 44 stations in summer and 217 samples were collected from 45 stations in winter. Totally 20 taxa belonging to coccolithophyceae were identified using a polarized microscope at the 1000 × magnification. The dominant species of the two seasons were Gephyrocapsa oceanica, Emiliania huxleyi, Helicosphaera carteri, and Algirosphaera robusta. In summer the abundance of coccolithophore cells and coccoliths ranged 0-176.40 cells mL −1 , and 0-2144.98 coccoliths mL −1 , with the average values of 8.45 cells mL −1 , and 265.42 coccoliths mL −1 respectively. And in winter the abundance of cells and coccoliths ranged 0-71.66 cells mL −1 , and 0-4698.99 coccoliths mL −1 , with the average values of 13.91 cells mL −1 and 872.56 coccoliths mL −1 , respectively. In summer, the LCs in surface layer were mainly observed on the coastal belt and southern part of the survey area. In winter, the LCs in surface layer had high value in the continental shelf area of section P. The comparison among section A, section F, section P and section E indicated lower species diversity and less abundance in the Yellow Sea than those in the East China Sea in both seasons. Temperature and the nitrate concentration may be the major environmental factors controlling the distribution and species composition of LCs in the studying area based on CCA.

show abstract

Phytoplankton distribution along the eastern coast of the USA. I. Phytoplankton composition

Cited by 31 publications

References 17 publications

The Taxonomic Significance of Species That Have Only Been Observed Once: The Genus Gymnodinium (Dinoflagellata) as an Example

The Taxonomic Significance of Species That Have Only Been Observed Once: The Genus Gymnodinium (Dinoflagellata) as an Example

Net in situ growth rates of phytoplankton in an oligotrophic, tropical shelf ecosystem

Summer and winter living coccolithophores in the Yellow Sea and the East China Sea

Contact Info

Product

Resources

About