New information on age and growth in length of Micromesistius australis, Norman 1937 (Pisces, Gadidae), in the South-West Atlantic

Polar Biology ◽  
1988 ◽  
Vol 8 (5) ◽  
pp. 341-351 ◽  
Author(s):  
E. R. Barrera-Oro ◽  
A. P. Tomo
Keyword(s):  
Age And Growth ◽  
The South ◽  
South West ◽  
New Information

The Base and Top of the Coral-rock in Barbados

1937 ◽  
Vol 74 (8) ◽  
pp. 337-359 ◽  
Author(s):  
C. T. Trechmann
Keyword(s):  
Sea Level ◽  
The South ◽  
The West ◽  
East Part ◽  
Varying Thickness ◽  
South West ◽  
New Information ◽  
Main Portion ◽  
Coral Rock

1. The coral-rock commences nearly everywhere with a basal bed of varying thickness containing a fauna of pre-Pleistocene aspect among which the genus Haliotis (absent from these coasts at the present day), Pleurotomaria, Meiocardia, etc., are noticeable. This faunule may have lived at a depth of 700–1,000 feet.2. The supposition that the southerly anticlines are a later uplift than the main portion of Barbados is supported by the absence of ravines, and the presence of post-coral-rock beds which occur as coastal veneers at low altitudes, and in greater thickness in the south-east corner near Whitehaven.3. The south-east part of the island from Consett Point to Ragged Point has probably extended further seawards in comparatively recent times ; the series of converging faults and dislocations in the cliff sections suggest that the thrusts from the west or south-west may have been resisted by this part of the island.4. The relative claims of fault-scarping or marine erosion in production of the rising terraces is discussed ; and new information regarding the thickness of the coral-rock at sea-level from a boring is detailed.5. The finding of a faunule with Pliocene or possibly Miocene affinities at the base of the coral-rock puts the Oceanic series further back, into the Miocene.

scholarly journals Population structure and biology of shortfin mako, Isurus oxyrinchus, in the south-west Indian Ocean

2014 ◽  
Vol 65 (12) ◽  
pp. 1045 ◽  
Author(s):  
J. C. Groeneveld ◽  
G. Cliff ◽  
S. F. J. Dudley ◽  
A. J. Foulis ◽  
J. Santos ◽  
...  
Keyword(s):  
Population Structure ◽  
Indian Ocean ◽  
Fork Length ◽  
West Indian ◽  
Age And Growth ◽  
The South ◽  
South West Indian Ocean ◽  
South West ◽  
Shortfin Mako ◽  
West Indian Ocean

The population structure, reproductive biology, age and growth, and diet of shortfin makos caught by pelagic longliners (2005–10) and bather protection nets (1978–2010) in the south-west Indian Ocean were investigated. The mean fork length (FL) of makos measured by observers on longliners targeting tuna, swordfish and sharks was similar, and decreased from east to west, with the smallest individuals occurring near the Agulhas Bank edge, June to November. Nearly all makos caught by longliners were immature, with equal sex ratio. Makos caught by bather protection nets were significantly larger, males were more frequent, and 93% of males and 55% of females were mature. Age was assessed from band counts of sectioned vertebrae, and a von Bertalanffy growth model fitted to sex-pooled length-at-age data predicted a birth size (L0) of 90 cm, maximum FL (L∞) of 285 cm and growth coefficient (k) of 0.113 y–1. Males matured at 190 cm FL, aged 7 years, and females at 250 cm, aged 15 years. Litter sizes ranged from nine to 14 pups, and the presence of gravid females in bather protection nets suggested that some pupping occurred in shelf waters. Teleosts (mainly Trachurus capensis) occurred in 84% of stomachs collected on longliners, whereas elasmobranchs (63.5%) were most common in samples collected from bather protection nets, followed by teleosts (43.1%) and cephalopods (36.5%). Larger prey size may be a factor that attracts large makos to coastal waters.

Middle and Late Iron Age Occupation at Cadnam Farm, Alton, Hampshire

2018 ◽  
Vol 73 (1) ◽  
pp. 110-136
Author(s):  
Oliver Good ◽  
Richard Massey
Keyword(s):  
Iron Age ◽  
The South ◽  
Late Iron Age ◽  
South West ◽  
Middle Iron Age

Three individual areas, totalling 0.55ha, were excavated at the Cadnam Farm site, following evaluation. Area 1 contained a D-shaped enclosure of Middle Iron Age date, associated with the remains of a roundhouse, and a ditched drove-way. Other features included refuse pits, a four-post structure and a small post-built structure of circular plan. Area 2 contained the superimposed foundation gullies of two Middle Iron Age roundhouses, adjacent to a probable third example. Area 3 contained a small number of Middle Iron Age pits, together with undated, post-built structures of probable Middle Iron Age date, including a roundhouse and four and six-post structures. Two large boundary ditches extended from the south-west corner of Area 3, and were interpreted as the funnelled entrance of a drove-way. These contained both domestic and industrial refuse of the late Iron Age date in their fills.

MINERALOGY AND GEOCHEMISTRY OF THE Co-RICH FERROMANGANESE CRUSTS FROM THE SOUTH WEST INDIAN RIDGE

2013 ◽  
Vol 33 (6) ◽  
pp. 71
Author(s):  
Zhihua YU ◽  
Dejiang FAN ◽  
Aibin ZHANG ◽  
Xiaoxia SUN ◽  
Zuosheng YANG
Keyword(s):  
West Indian ◽  
The South ◽  
Ferromanganese Crusts ◽  
South West ◽  
Indian Ridge
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