Patterns in abundance, population structure and biology of knife prawn Haliporoides triarthrus on deep-water trawl grounds off eastern South Africa

2013 ◽  
Vol 35 (4) ◽  
pp. 565-577 ◽  
Author(s):  
J Robey ◽  
ST Fennessy ◽  
BI Everett ◽  
J Santos ◽  
JC Groeneveld
Keyword(s):  
South Africa ◽  
Population Structure ◽  
Deep Water

scholarly journals Population structure and morphology of South African deep‐water parapagurid hermit crabs

2019 ◽  
Vol 101 (3) ◽  
pp. 227-241
Author(s):  
Amy G. Wright ◽  
Charles L. Griffiths ◽  
Thomas P. A. Botha
Keyword(s):  
Population Structure ◽  
South African ◽  
Deep Water ◽  
Hermit Crabs ◽  
Structure And Morphology

The distribution and population structure ofAloe pillansiiin South Africa in relation to climate and elevation

2004 ◽  
Vol 59 (2) ◽  
pp. 133-140 ◽  
Author(s):  
COSMAN BOLUS ◽  
TIMM HOFFMAN ◽  
SIMON TODD ◽  
ELSABÈ POWELL ◽  
HOWARD HENDRICKS ◽  
...  
Keyword(s):  
South Africa ◽  
Population Structure

Potential of a trap-fishery for deep-water rock lobster Palinurus delagoae off South Africa

1997 ◽  
Vol 48 (8) ◽  
pp. 993 ◽  
Author(s):  
J. C. Groeneveld ◽  
A. C. Cockcroft
Keyword(s):  
South Africa ◽  
South African ◽  
Deep Water ◽  
Linear Models ◽  
Depth Interval ◽  
Suitable Habitat ◽  
Rock Lobster ◽  
Experimental Phase ◽  
Trap Fishery ◽  
Catch Rates

An experiment to investigate the potential of a trap-fishery for deep-water rock lobster Palinurus delagoae was conducted off the east coast of South Africa between 1994 and 1996. The 75–425 m depth interval between 27°S and 32°S was stratified according to depth and latitude, and three regions (North, Central and South) were sampled systematically over the three years. Sampling by commercial vessels operating long-lines and traps included an experimental phase (fixed fishing positions) and a commercial phase (no restriction on fishing location). Generalized linear models were used to investigate the influence of year, region, sampling phase, month and soak time. Sampling phase was significant, with traps set during the commercial phase catching more than those set in the experimental phase. The effect of soak time on catch rates was not significant. The almost-50% decrease in the combined abundance index combined with a marked decrease in mean lobster size over the study period suggests a relatively low fisheries potential for this species in South African waters; this may be attributable to the relative scarcity of suitable habitat in the area.

A new species of Platepistoma Rathbun, 1906 (Decapoda: Brachyura: Cancridae) from deep water off South Africa

Zootaxa ◽  
2012 ◽  
Vol 3522 (1) ◽  
pp. 73
Author(s):  
PETER J. F. DAVIE ◽  
PETER K. L. NG
Keyword(s):  
South Africa ◽  
New Species ◽  
Deep Water ◽  
Dorsal View ◽  
Kwazulu Natal ◽  
A New Species

Platepistoma seani sp. nov. is described from deep water off KwaZulu-Natal Province, South Africa. It can be separatedfrom its nearest relative, Platepistoma guezei (Crosnier, 1976), by its thicker setal covering that completely hides the an-terolateral teeth from dorsal view, less well defined carapace regions, more spinous anterolateral and posterolateral cara-pace margins, sparser but more prominent dorsal carapace spines, more prominent spines on the carpus of the cheliped, and a relatively narrower male telson.

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