Redescription and postmarsupial development of Apseudopsis latreillii (Crustacea: Tanaidacea)

Apseudopsis latreillii is a common tanaidacean species widely-distributed in the north-east Atlantic, but its diagnostic characters remain unspecified. Furthermore, intraspecific variation in relation to its developmental stages has not been described. Knowledge about this variation is needed owing to the difficulty of identification of the significant number of juvenile specimens within samples, particularly when sympatric with other apseudid species. Specimens from three different localities of the north-east Atlantic have been examined, and the size of 766 individuals has been measured. Study of postmarsupial development shows that the manca II is followed by two juvenile stages before reaching maturity. Males present two possible morphologies. After a preparatory stage, females pass through a sequence of copulatory instars followed by intermediate stages in which the female loses the ovisac after manca release. Characters allowing the distinction of A. latreillii specimens regardless of developmental stage are the combination of a pointed and downturned rostrum, pereonites without apophyses, three ventral spines on the pereopod 1 propodus, and one dorsodistal spine on the merus.

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Microzooplankton dynamics during the development of the spring bloom in the north-east Atlantic

Journal of the Marine Biological Association of the United Kingdom ◽

10.1017/s0025315405011653 ◽

2005 ◽

Vol 85 (4) ◽

pp. 741-753 ◽

Cited By ~ 12

Author(s):

E.S. Fileman ◽

R.J.G. Leakey

Keyword(s):

Developmental Stages ◽

Spring Bloom ◽

Mixed Layer Depth ◽

Grazing Impact ◽

East Atlantic ◽

North East ◽

The North ◽

Protozoan Community ◽

Community Growth ◽

The Uk

Microzooplankton community composition, abundance, biomass and grazing impact were assessed, along with measurements of ciliate growth and mortality, during the onset of the spring bloom in the north-east Atlantic. The study was undertaken as part of the UK Biogeochemical Ocean Flux Study during 1 May to 15 June 1990. The microzooplankton community was composed of protozoans and metazoan developmental stages with respective mixed-layer depth integrated biomass values ranging from 127 to 638 and 74 to 394 mg C m−2. High numbers of aloricate ciliates (up to 35,000 cells l−1) dominated the microzooplankton community during early May prior to the onset of the spring bloom. Ciliate abundance then declined rapidly during mid-May with community growth rates ranging from −0·71 to 0·23 d−1. High abundances of metazoplankton (up to 400 l−1) were also recorded at this time and may have contributed to the decline in ciliate numbers. In late May and early June the protozoan community comprised a more even mix of dinoflagellates, tintinnids and aloricate ciliates. Phytoplankton mortality rates, measured using a dilution technique, ranged from 0·2 to 0·5 d−1. The microzooplankton consumed 8 to 44 μg C l−1 d−1, equivalent to between 16 and 40% of the chlorophyll biomass and 38 and 154% of primary production. These high rates of herbivory reflect the predominance of small (<5 μm in length) phytoplankton cells present throughout the first half of the study and support previous studies demonstrating the microzooplankton to be the main grazers of phytoplankton in the north-east Atlantic. However, there is also evidence that a disparity between predator and prey may have prevented a response by the microzooplankton to rapid increases in phytoplankton biomass and production during the spring bloom.

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Thrust–wrench interference tectonics in the Gulf of Cadiz (Africa–Iberia plate boundary in the North-East Atlantic): Insights from analog models

Marine Geology ◽

10.1016/j.margeo.2011.09.014 ◽

2011 ◽

Vol 289 (1-4) ◽

pp. 135-149 ◽

Cited By ~ 35

Author(s):

João C. Duarte ◽

Filipe M. Rosas ◽

Pedro Terrinha ◽

Marc-André Gutscher ◽

Jacques Malavieille ◽

...

Keyword(s):

Plate Boundary ◽

Gulf Of Cadiz ◽

East Atlantic ◽

North East ◽

The North ◽

Gulf Of Cádiz ◽

Analog Models

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Corrigendum to “Bisphenol A and its analogs in muscle and liver of fish from the North East Atlantic Ocean in relation to microplastic contamination. Exposure and risk to human consumers” [J. Hazard. Mater. 393 (2020) 122419]

Journal of Hazardous Materials ◽

10.1016/j.jhazmat.2021.125654 ◽

2021 ◽

Vol 415 ◽

pp. 125654

Author(s):

Luís Gabriel A. Barboza ◽

Sara C. Cunha ◽

Carolina Monteiro ◽

José O. Fernandes ◽

Lúcia Guilhermino

Keyword(s):

Atlantic Ocean ◽

Bisphenol A ◽

East Atlantic ◽

North East ◽

The North

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A COMPARISON OF DEPRESSIONS OVER EUROPE AND THE NORTH-EAST ATLANTIC

Weather ◽

10.1002/j.1477-8696.1971.tb04191.x ◽

1971 ◽

Vol 26 (5) ◽

pp. 210-216 ◽

Cited By ~ 1

Author(s):

I. Dodos

Keyword(s):

East Atlantic ◽

North East ◽

The North

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Exceptional influx of oceanic species into the North Sea late 1997

Journal of the Marine Biological Association of the United Kingdom ◽

10.1017/s0025315498000885 ◽

1999 ◽

Vol 79 (4) ◽

pp. 737-739 ◽

Cited By ~ 30

Author(s):

M. Edwards ◽

A.W.G. John ◽

H.G. Hunt ◽

J.A. Lindley

Keyword(s):

North Sea ◽

Indicator Species ◽

Climatic Conditions ◽

Historical Evidence ◽

East Atlantic ◽

North East ◽

The North ◽

The North Sea ◽

Oceanic Species

Continuous Plankton Recorder records from the North Sea and north-east Atlantic from September 1997 to March 1998 indicate an exceptional influx of oceanic indicator species into the North Sea. These inflow events, according to historical evidence, have only occurred sporadically during this century. This exceptional inflow and previous inflow events are discussed in relation to their similarity in terms of their physical and climatic conditions.

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