Results 1 to 10 of about 38 (34)
Long-distance migration of South African deep-water rock lobster Palinurus gilchristi [PDF]
Marine Ecology - Progress Series, 2002 Long-term movement patterns of deep-water rock lobster Palinurus gilchristi were investigated off the south coast of South Africa using tag recapture data. Over a 12 yr period (1988 to 1999), 30 043 lobsters were tagged at 5 sites. From west to east, these were Cape Agulhas, West and East Agulhas Bank, Mossel Bay to Port Elizabeth, and Port Alfred. The
Johan C Groeneveld, George M Branch
exaly +2 more sources
Summary of south coast rock lobster (Palinurus gilchristi) fishery
, 2021 A summary of the biology, distribution and the history of the fishery of the South Coast rock lobster is ...
Holloway, Susan, Butterworth, Doug
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Mitochondrial DNA panmixia in spiny lobsterPalinurus gilchristisuggests a population expansion [PDF]
Marine Ecology Progress Series, 2005 The spiny lobster Palinurus gilchristi is endemic to the deep shelf waters along the southern coast of South Africa, where it supports a commercial fishery. Mark-recapture studies and phenotypic differences suggest there are 2 populations of this species along the coast, but it is unknown if the observed differences have arisen because of low gene flow
KA Tolley +3 more
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Advection-diffusion models of spiny lobster Palinurus gilchristi migrations for use in spatial fisheries management [PDF]
Marine Ecology Progress Series, 2014 Advection-diffusion models were constructed to simulate migration patterns of juve- nile and adult spiny lobsters off southern South Africa. Models based on tag-recapture informa- tion collected between 1978 and 2005 (2665 tag recaptures) were used to quantify directional movements and to estimate distances moved along a bathymetric gradient.
Santos, Jorge +2 more
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Breeding period and size in the South Coast rock lobster,Palinurus gilchristi(Decapoda: Palinuridae) [PDF]
South African Journal of Marine Science, 1995 The breeding period in female P. gilchristi was determined by integrating periods of higher egg-bearing proportions with the preceding ripening of ovaries. Most ovaries in the central sector ripened in June (c. 75% in Stage 4), followed by spawning in July/August. Most females (all size-classes) bear eggs between July (40,0%) and November (50,2%).
J. C. Groeneveld, G. J. Rossouw
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Size at onset of sexual maturity in the South Coast rock lobsterPalinurus gilchristi(Decapoda: Palinuridae) [PDF]
South African Journal of Marine Science, 1994 Size at onset of sexual maturity in female Palinurus gilchristi was determined by means of two methods. Sizes using the presence of ovigerous setae as an indicator of maturity were consistently smaller than those estimated using a method based on the size at which animals were ovigerous. A gradient in the size at maturity occurred along the South Coast
J. C. Groeneveld, R. Melville-Smith
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BMC Evolutionary Biology, 2009 Background Molecular tools may help to uncover closely related and still diverging species from a wide variety of taxa and provide insight into the mechanisms, pace and geography of marine speciation.
Macpherson Enrique +5 more
doaj +1 more source
Morphometric relationships of palinurid lobstersPalinurus delagoaeandP. gilchristiand a scyllarid lobsterScyllarides elisabethaecaught in traps off the south and east coasts of South Africa [PDF]
South African Journal of Marine Science, 1996 Morphometric relationships of commercially important lobsters Palinurus delagoae, P. gilchristi and Scyllarides elisabethae were determined using standard measurements of carapace length (CL), whole mass (WM) and tail mass (TM). The relationships are important because they form the basis for assessing landings.
J. C. Groeneveld, P. C. Goosen
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Some of the next articles are maybe not open access.
The oxygen-binding modulation of hemocyanin from the Southern spiny lobster Palinurus gilchristi
Journal of Comparative Physiology B: Biochemical, Systemic, and Environmental Physiology, 2008Arthropod hemocyanins transport and store oxygen and are composed of six subunits, or multiples thereof depending on the species. Palinurus gilchristi hemocyanin is found only as 1 x 6-mers, as normally occurs in spiny lobsters. An alkaline pH and removal of calcium ions induce a wholly reversible dissociation into monomers.
Alessandra Olianas +2 more
exaly +5 more sources
Fisheries Research, 2006
Octopus magnificus inhabits the deep-shelf waters of southern South Africa, where it is a regular bycatch of the trap-fishery for spiny lobster Palinurus gilchristi. We used observer data collected on commercial lobster vessels to assess octopus size distribution, effects of trap location, soak-time and season on octopus catch rates, prey preference ...
Johan C Groeneveld
exaly +2 more sources
Octopus magnificus inhabits the deep-shelf waters of southern South Africa, where it is a regular bycatch of the trap-fishery for spiny lobster Palinurus gilchristi. We used observer data collected on commercial lobster vessels to assess octopus size distribution, effects of trap location, soak-time and season on octopus catch rates, prey preference ...
Johan C Groeneveld
exaly +2 more sources