Hidden diversity and host specificity in cycliophorans: a phylogeographic analysis along the North Atlantic and Mediterranean Sea

A high-resolution record of paleostorm events along the French Mediterranean coast over the past 7000 years was established from a lagoonal sediment core in the Gulf of Lions. Integrating grain size, faunal analysis, clay mineralogy and geochemistry data with a chronology derived from radiocarbon dating, we recorded seven periods of increased storm activity at 6300–6100, 5650–5400, 4400–4050, 3650–3200, 2800–2600, 1950–1400 and 400–50 cal yr BP (in the Little Ice Age). In contrast, our results show that the Medieval Climate Anomaly (1150–650 cal yr BP) was characterised by low storm activity.The evidence for high storm activity in the NW Mediterranean Sea is in agreement with the changes in coastal hydrodynamics observed over the Eastern North Atlantic and seems to correspond to Holocene cooling in the North Atlantic. Periods of low SSTs there may have led to a stronger meridional temperature gradient and a southward migration of the westerlies. We hypothesise that the increase in storm activity during Holocene cold events over the North Atlantic and Mediterranean regions was probably due to an increase in the thermal gradient that led to an enhanced lower tropospheric baroclinicity over a large Central Atlantic-European domain.

Download Full-text

Contrasting sea-surface responses between the western Mediterranean Sea and eastern subtropical latitudes of the North Atlantic during abrupt climatic events of MIS 3

Marine Micropaleontology ◽

10.1016/j.marmicro.2011.03.002 ◽

2011 ◽

Vol 80 (1-2) ◽

pp. 1-17 ◽

Cited By ~ 28

Author(s):

A. Penaud ◽

F. Eynaud ◽

M. Sánchez-Goñi ◽

B. Malaizé ◽

J.L. Turon ◽

...

Keyword(s):

Mediterranean Sea ◽

North Atlantic ◽

Western Mediterranean ◽

Sea Surface ◽

Mis 3 ◽

The North ◽

Western Mediterranean Sea ◽

The North Atlantic

Download Full-text

Cardiodectes medusaeus(Copepoda: Pennellidae) a synonym ofCardiodectes bellottii, a parasite of mid-water fishes in the North Atlantic Ocean and Mediterranean Sea

Proceedings of the Biological Society of Washington ◽

10.2988/17-00019 ◽

2017 ◽

Vol 130 (1) ◽

pp. 250-255 ◽

Cited By ~ 1

Author(s):

W. E. Hogans

Keyword(s):

Atlantic Ocean ◽

Mediterranean Sea ◽

North Atlantic ◽

North Atlantic Ocean ◽

The North ◽

The North Atlantic

Download Full-text

The reproductive biology of swordfish (Xiphias gladius) in the Strait of Gibraltar

Journal of the Marine Biological Association of the United Kingdom ◽

10.1017/s0025315418000346 ◽

2018 ◽

Vol 99 (3) ◽

pp. 649-659 ◽

Cited By ~ 5

Author(s):

Noureddine Abid ◽

Amin Laglaoui ◽

Abdelhay Arakrak ◽

Mohammed Bakkali

Keyword(s):

Mediterranean Sea ◽

North Atlantic ◽

Fork Length ◽

Strait Of Gibraltar ◽

Mixing Rate ◽

The North ◽

Lower Jaw ◽

The North Atlantic ◽

The Mediterranean ◽

First Maturity

During the period from April to September for the years 2014–2016, 998 swordfishes caught by the Moroccan artisanal longline fishery in the Strait of Gibraltar were sampled to study the reproduction of this species in this mixing area between the Mediterranean Sea and the North Atlantic. The results showed that the sex ratio is slightly in favour of males for sizes smaller than 130 cm LJFL (Lower jaw-fork length), whereas females are more numerous in sizes larger than 140 cm LJFL. Fifty per cent of females were estimated to be mature at 170 cm LJFL, while for males, the size at first maturity was estimated to be 95 cm LJFL. The swordfish spawn from June to September, probably in the Mediterranean Sea. The findings of this study suggest that the reproductive characteristics of swordfish caught in the Strait of Gibraltar are similar to those of the Mediterranean swordfish, and a high mixing rate between the Mediterranean and the North Atlantic stocks occurs in the study area.

Download Full-text

Sailing Directions of the North Atlantic Viking Age (from about the year 860 to 1400)

Journal of Navigation ◽

10.1017/s0373463300023584 ◽

1997 ◽

Vol 50 (1) ◽

pp. 55-64 ◽

Cited By ~ 5

Author(s):

Søren Thirslund

Keyword(s):

Mediterranean Sea ◽

Fresh Water ◽

North Atlantic ◽

Western Europe ◽

Viking Age ◽

The North ◽

The World ◽

The North Atlantic ◽

The Mediterranean ◽

New Settlements

As long as man has ventured to go to sea, sailing directions have existed. Man's survival depended upon knowing the best fishing and hunting places and how to find these were secrets, told only to family or friends.Later, sailing directions covered areas in the world where trade or new settlements had begun and, as early as 500 years B.C., some of these sailing directions were written down. They covered the Mediterranean Sea and part of western Europe and they were called PERIPLUS meaning ‘sailing around’. They contained almost the same information as sailing directions today, namely: harbours, anchorages, currents, possibilities for fresh water, provisions and other supplies.

Download Full-text