Publications

Scientific publications on the South African chokka squid Loligo reynaudii. Nearly all projects/research have been completely or partly sponsored by the SASMIA Research Fund.


1974
  • Badenhorst, J.H., 1974. The morphology and histology of the male genital system of the squid Loligo reynaudii (d’Orbigny). Ann Univ Stellenbosch (Ser A). 49(1), 1-36.
  • Pegasus Fishing (Pty)Ltd
1986
  • Augustyn, C.J., 1986. The squid jigging fishery on the South African south coast. S. Afr. Shipp. News Fishg Ind. Rev. 41(5), 24-26.
1987
  • Lipinski, M.R., 1987. Food and feeding of Loligo vulgaris reynaudii from St Francis Bay, South Africa. S. Afr. J. mar. Sci. 5, 557-564.
1989
  • Augustyn, C.J., 1989. Systematics, life cycle and resource potential of the chokker squid Loligo vulgaris reynaudii. PhD Thesis, University of Port Elizabeth. 378 pp.
1990
  • Augustyn, C.J., 1990. Biological studies on the chokker squid Loligo vulgaris reynaudii (Cephalopoda: Myopsida) on spawning grounds off the south-east coast of South Africa. S. Afr. J. mar. Sci. 9, 11-26.
  • Lipinski, M.R., 1990. Changes in the pH caecum of Loligo vulgaris reynaudii during digestion. S. Afr. J. mar. Sci. 9, 43-51.
  • Lipinski, M.R., David, J.H.M., 1990. Cephalopods in the diet of the South African fur seal (Arctocephalus pusillus pusillus). J. Zool. 221, 359-374.
  • Sauer, W.H.H., Lipinski, M.R, 1990. Histological validation of morphological stages of sexual maturation in chokker squid Loligo vulgaris reynaudii D'Orb (Cephalopoda: Loliginidae). S. Afr. J. mar. Sci. 9,189-200.
1991
  • Augustyn, C.J., 1991. The biomass and ecology of chokka squid Loligo vulgaris reynaudii off the west coast of South Africa. S. Afr. J. Zool. 26(4), 164-181.
  • Sauer 1991. Population characteristics of the chokker squid, Loligo vulgaris reynaudii, and its distribution in the Algoa Bay-St Francis Bay area in relation to environmental conditions. MSc. Thesis, University of Port Elizabeth. 174 pp.
  • Sauer, W.H.H., Goschen, W.S., Koorts, A.S., 1991. A preliminary investigation of the effect of sea temperature fluctuations and wind direction on catches of chokka squid Loligo vulgaris reynaudii off the Eastern Cape, South Africa. S. Afr. J. Mar. Sci. 11, 467-473.
  • Sauer, W.H.H., Lipinski, M.R., 1991. Food of squid Loligo vulgaris reynaudii (Cephalopoda: Loliginidae) on their spawning grounds off the Eastern Cape, South Africa. S. Afr. J. mar. Sci. 10, 193-201.
  • Sauer, W.H.H., Smale, M.J., 1991. Predation patterns on the inshore spawning grounds of the squid Loligo vulgaris reynaudii (Cepahlopoda: Loliginidae) off the south-eastern cape, South Africa. S. Afr. J. mar. Sci. 11, 513-523.
1992
  • Augustyn, C.J., Lipinski, M.R., Sauer, W.H.H. 1992. Can the Loligo squid fishery be managed effectively? A synthesis of research on Loligo vulgaris reynaudii. S. Afr. J. mar. Sci. 12, 903-918.
1993
  • Augustyn, C.J., Roel, B.A., Chochrane, K.L., 1993. Stock assessment in the chokka squid Loligo vulgaris reynaudii fishery off the coast of South Africa, in: Okutani, T., O'Dor, R.K., Kubodera, T. (Eds.), Recent advances in fisheries biology. Tokai University Press, Tokyo, pp. 3-14.
  • Sauer, W.H.H., McCarthy, C., Smale, M. J., Koorts, A. S., 1993. An investigation of the egg distribution of the chokka squid, Loligo vulgaris reynaudii, in Krom Bay, South Africa. Bull. Mar. Sci. 53(3), 1066-1077.
  • Sauer, W.H.H., Smale, M. J., 1993. Spawning behaviour of Loligo vulgaris reynaudii in shallow coastal waters of the south-Eastern Cape, South Africa, in: Okutani, T., O'Dor, R.K., Kubodera, T. (Eds), Recent Advances in Fisheries Biology. Tokai University Press, Tokyo, pp. 489-498.
  • Sauer, W.H.H., Smale, M.J., Lipinski, M.R., 1992. The location of the spawning grounds, spawning and schooling behaviour of the squid Loligo vulgaris reynaudii (Cephalopoda: Myopsida) off the eastern Cape coast, South Africa. Mar. Biol. 114, 97-107.
1994
  • Augustyn, C.J., Lipinski, M.R., Sauer, W.H.H., Roberts, M.J., Mitchell-Innes, B.A., 1994. Chokka squid on the Agulhas Bank: life history and ecology. S. Afr. J. Sci. 90, 143-154.
  • Hanlon, R.T., Smale, M.J., Sauer, W.H.H., 1994. An ethogram of body patterning behaviour in the squid Loligo vulgaris reynaudii on spawning grounds in South Africa. Biol. Bull. 187, 363-372.
  • Lipinski, M.R., 1994. Differences among basic biological parameters in a population of chokka squid Loligo vulgaris reynaudii (Cephalopoda: Loliginidae) sampled by three methods. S. Afr. J. mar. Sci. 24, 281-286.
  • Lipinski, M.R., Durholtz, M.D., 1994. Problems associated with ageing squid from their statoliths: towards a more structured approach. Antarct. Sci. 6(2), 215-222.
  • Roberts, M.J., Sauer, W.H.H., 1994. Environment: the key to understanding the South African chokka squid (Loligo vulgaris reynaudii) life cycle and fishery? Antarct. Sci. 6(2), 249-258.
1995
  • Lipinski, M.R., Underhill, L.G., 1995. Sexual maturation in squid: Quantum or continuum. S. Afr. J. mar. Sci. 15, 207-223.
  • Sauer, W.H.H. 1995. South Africa's Tsitsikamma National Park as a protected breeding area for the commercially exploited chokka squid Loligo vulgaris reynaudii. S. Afr. J. Mar. Sci. 16, 365-371.
  • Sauer, W.H.H. 1995. The impact of fishing on chokka squid Loligo vulgaris reynaudii concentrations on inshore spawning grounds in the South-Eastern Cape, South Africa. S. Afr. J. mar. Sci. 16, 185-193.
  • Smale, M.J., Sauer, W.H.H., Hanlon, R.T., 1995. Short Communications: Attempted ambush predation on spawning squids Loligo vulgaris reynaudii by benthic pyjama sharks, Poroderma africanum, off South Africa. J. Mar. Biol. Assoc. U.K. 75, 739-742.
  • Vecchione, M., Lipinski, M.R., 1995. Descriptions of the paralarvae of two loliginid squids in Southern African waters. S. Afr. J. Mar. Sci. 15, 1-7.
1997
  • Durholtz, M.D., Lipinski, M.R., Przybylowicz, W.J., Mesjasz-Przybylowicz, J. 1997. Nuclear microprobe mapping of statoliths of chokka squid Loligo vulgaris reynaudii d'Orbigny, 1845. Biol. Bull. 193, 125-140.
  • Sauer, W.H.H., Roberts, M.J., Lipinski, M. R., Smale, M.J., Hanlon, R.T., Webber, D.M., O'Dor, R.K., 1997. Choreography of the squid's "nuptial dance". Biol. Bull. 192(2), 203-207.
1998
  • Augustyn, C.J., Roel, B.A., 1998. Fisheries biology, stock assessment, and management of the chokka squid (Loligo vulgaris reynaudii) in South African water: an overview. CCOFI Rep. 39, 71-80.
  • Blackburn, S., Sauer, W.H.H., Lipinski, M.R., 1998. The embryonic development of the chokka squid Loligo vulgaris reynaudii d' Orbigny, 1845. The Veliger, 41(3): 249-258.
  • Lipinski, M.R., 1998. Cephalopod life cycles: Patterns and Exceptions. S. Afr. J. mar. Sci. 20, 439-447.
  • Lipinski, M.R., Durhotlz, M.D., Underhill, L.G., 1998. Field validation of age readings from the statoliths of chokka squid (Loligo vulgaris reynaudii d'Orbigny, 1845) and an assessment of associated errors. ICES J. Mar. Sci. 55, 240-257.
  • Lipinski, M.R., Hampton, I., Sauer, W.H.H., Augustyn, C.J., 1998. Daily net emigration from a spawning concentration of chokka squid (Loligo vulgaris reynaudii d'Orbigny, 1845) in Kromme Bay South Africa. ICES J. Mar. Sci. 55, 258-270.
  • Roberts, M.J., 1998. The influence of the environment on chokka squid Loligo vulgaris reynaudii spawning aggregations: Steps towards a quantified model. S. Afr. J. mar. Sci. 20, 267-284.
  • Roel, B., 1998. Stock assessment of the chokka squid Loligo vulgaris reynaudii. Ph.D. thesis, University of Cape Town. 217 pp.
  • Roel, B., Cochrane, K., Butterworth, D. 1998. Investigation on the effects of different levels of effort and of the closed season in the jig fishery for chokka squid Loligo vulgaris reynaudii. S. Afr. J. Mar. Sci. 19, 501-512.
1999
  • Melo, Y.C., Sauer, W.H.H., 1999. Confirmation of serial spawning in the chokka squid Loligo vulgaris reynaudii off the coast of South Africa. Mar. Biol. 135 (2), 307-313.
  • Oosthuizen, A. 1999. The effects of temperature on embryonic development and hatching success of squid (Loligo vulgaris reynaudii) eggs. MSc Thesis, University of Port Elizabeth.
  • Sauer, W.H.H., Melo, Y.C., De Wet ,W., 1999. Fecundity of the chokka squid Loligo vulgaris reynaudii on the south-eastern coast of South Africa. Mar. Biol. 135 (2), 315-319.
2000
  • Rigby, P.R. 2000. Does tagging for radio acoustic positioning telemetry change spawning behaviour of chokka squid, Loligo vulgaris reynaudii? MSc. Thesis, Dalhousie University. 292 pp.
  • Roel, B., Butterworth, D.S., 2000. Assessment of the South African chokka squid Loligo vulgaris reynaudii. Is disturbance of aggregations by the recent jig fishery having a negative impact on recruitment. Fish. Res. 48, 213-228.
  • Roel, B., Cochrane, K., Field, J. 2000. Investigation into the declining trend in chokka squid Loligo vulgaris reynaudii catches made by South African trawlers. S. Afr. J. mar. Sci. 22, 121-135.
  • Sauer, W.H.H., Lipinski, M. R., Augustyn, C. J., 2000. Tag recapture studies of the chokka squid Loligo vulgaris reynaudii d'Orbigny, 1845 on inshore spawning grounds on the south-east coast of South Africa. Fish. Res. 45, 283-289.
  • Schön, P-J., 2000. An investigation into the influence of the environment on spawning aggregations and jig catches of chokka squid Loligo vulgaris reynaudii off the coast of South Africa. PhD Thesis, University of Port Elizabeth. 130 pp.
2001
  • Smale, M.J., Sauer, W.H.H., M.J. Roberts, 2001. Behavioural interactions of predators and spawning chokka squid off South Africa: towards quantification. Mar. Biol. 139, 1095-1105.
2002
  • Dorfler, K., 2002. The dynamics of turbidity on the spawning grounds of the chokka squid Loligo vulgaris reynaudii and links to squid catches. MSc Thesis, University of Port Elizabeth. 157 pp.
  • Durholtz, M.D., Lipinski, M.R., Field, J.G., 2002. Laboratory validation of periodicity of incrementation in statoliths of the South African squid Loligo vulgaris reynaudii (d'Orbigny, 1845): a reevaluation. J. Exp. Mar. Biol. Ecol. 279, 41-59.
  • Hanlon, R.T., Smale, M.J., Sauer, W.H.H., 2002. The mating system of the squid Loligo vulgaris reynaudii (Cephalopoda, Mollusca) off South Africa: Fighting, guarding, sneaking, mating and egg laying behaviour. Bull. Mar. Sci. 71(1), 331-345.
  • Oosthuizen, A., Roberts, M. J., Sauer, W. H. H., 2002a. Early post-cleavage stages and abnormalities identified in the embryonic development of chokka squid eggs Loligo vulgaris reynaudii. S. Afr. J. mar. Sci. 24, 379-382.
  • Oosthuizen, A., Roberts, M. J., Sauer, W. H. H., 2002b. Temperature effects on the embryonic development and hatching success of the squid Loligo vulgaris reynaudii. Bull. Mar. Sci. 71(2), 619-632.
  • Roberts, M.J., Barange, M., Lipinski, M. R., Prowse, M. R., 2002. Direct hydroacoustic observations of chokka squid Loligo vulgaris reynaudii spawning activity in deep water. S. Afr. J. mar. Sci. 24, 387-393.
  • Roberts, M.J, van den Berg, M.A. 2002. Recruitment variability of chokka squid (Loligo vulgaris reynaudii) - Role of currents on the Agulhas Bank (South Africa) in paralarvae distribution and food abundance. Bull. Mar. Sci. 71(2), 691-710 pp.
  • Schön, P-J., Sauer, W.H.H, Roberts, M.J. 2002. Environmental influences on spawning aggregations and jig catches of chokka squid Loligo vulgaris reynaudii: a 'black box' approach. Bull. Mar. Sci. 71(2), 783-800.
2004
  • Shaw, P.W., Sauer, W.H.H., 2004. Multiple paternity and complex fertilisation dynamics in the squid Loligo vulgaris reynaudii. Mar. Ecol. Prog. Ser. 270, 173-179.
2005
  • Roberts, M.J., 2005. Chokka squid (Loligo vulgaris reynaudii) abundance linked to changes in South Africa's Agulhas Bank ecosystem during spawning and the early life cycle. ICES J. Mar. Sci. 62(1), 33-55.
  • Roberts, M.J., van den Berg, M.A. 2005. Currents along the Tsitsikamma coast, South Africa, and potential transport of squid paralarvae and ichthyoplankton. Afr. J. Marine Sci. 27(2), 375-388.
  • Vidal, E.A.G., Roberts, M.J., Martins, R.S. 2005. Yolk utilization, metabolism and growth in reared Loligo vulgaris reynaudii paralarvae. Aquat. Living Resour. 18(4), 385-393.
2006
  • Glazer, J.P., Butterworth, D.S., 2006. Some refinements of the assessment of the South African squid resource, Loligo vulgaris reynaudii. Fish. Res. 78, 14-25.
  • Olyott, L.J.H., Sauer, W.H.H., Booth, A.J., 2006. Spatio-temporal patterns in maturation of the chokka squid (Loligo vulgaris reynaudii) off the coast of South Africa. ICES J. Mar. Sci. 63, 1649-1664.
2007
  • Lipinski, M.R., Soule, M.A., 2007. A new direct method of stock assessment of the loliginid squid. Rev. Fish Biol. Fish. 17, 437–453.
  • Melo, Y.C., Sauer, W.H.H., 2007. Determining the daily spawning cycle of the chokka squid Loligo vulgaris reynaudii off the South African Coast. Rev. Fish Biol. Fish. 17(2-3), 247-257.
  • Olyott, L.J.H., Sauer, W.H.H., Booth, A.J., 2007. Spatial patterns in the biology of the chokka squid, Loligo vulgaris reynaudii on the Agulhas Bank, South Africa. Rev. Fish Biol. Fish. 17(2-3), 159-172.
2008
  • Naud, M-J., Shaw, P.W. 2008. Isolation and characterization of highly polymorphic microsatellites in the chokka squid, Loligo reynaudii. Mol. Ecol. Res. 8(4), 943-945.
2009
  • Downey 2009. The effect of temperature and turbidity on spawning chokka squid, Loligo reynaudii, in Eastern Cape waters. MSc Thesis, Nelson Mandela Metropolitan University. 118 pp.
  • Oosthuizen, A., Roberts, M. J., 2009. Bottom temperature and in situ development of chokka squid eggs (Loligo vulgaris reynaudii) on the deep spawning grounds, South Africa. ICES J. Mar. Sci. 66, 1967-1971.
2010
  • Downey, N.J., Roberts, M.J., Baird, D., 2010. An investigation of the spawning behaviour of the chokka squid Loligo reynaudii and the potential effects of temperature using acoustic telemetry. ICES J. Mar. Sci. 67, 231-243.
  • Martins, R.S., 2010. Some factors influencing the transport of chokka squid (Loligo reynaudii D'Orbigny, 1839) paralarvae off the Eastern Cape, South Africa. PhD Thesis, Univeristy of Cape Town. 131 pp.
  • Martins, R.S., Roberts, M.J., Vidal, E.A.G., Moloney, C.L., 2010. Effects of temperature on yolk utilization in chokka squid (Loligo reynaudii d'Orbigny, 1839) paralarvae. J. Exp. Mar. Biol. Ecol. 386 (1-2), 19-26.
  • Roberts, M.J. 2010. Recruitment variability of chokka squid (Loligo reynaudii) — the role of the cold ridge, currents and retention on the Agulhas Bank, South Africa. PhD. Thesis, University of Cape Town. 149 pp.
  • Roberts, M.J., Mullon, C., 2010. First Lagrangian ROMS-IBM simulations indicate large losses of chokka squid Loligo reynaudii paralarvae from South Africa's Agulhas bank. Afr. J. Marine Sci. 32(1), 71-84.
  • Shaw, P.W., Hendrickson, L., McKeown, N.J., Stonier, T., Naud, M.-J., Sauer, W.H.H., 2010. Discrete spawning aggregations of loliginid squid do not represent genetically distinct populations. Mar. Ecol. Prog. Ser. 408, 117-127.
  • Soule, M.A., Hampton, I., Lipinski, M.R., 2010. Estimating the target strength of live, free-swimming chokka squid Loligo reynaudii at 38 and 120 kHz. ICES J. Mar. Sci. 67, 1381-1391.
2012
  • Roberts, M.J., Downey, N.J., Sauer, W.H.H., 2012. Existence of deeper egg masses redefines the spawning grounds for the South African chokka squid (Loligo reynaudi). ICES J. Mar. Sci. doi: 10.1093/icesjms/fss023.
  • Sauer, W.H.H., Downey, N.J., Lipinski, M.R., Roberts, M.J., Smale, M.J., Glazer, J., Melo, Y. 2012. Loligo reynaudii. In Advances in Squid Biology, Ecology and Fisheries. Rosa, R., Pierce, G., O'Dor, R. (Eds). Nova Science Publishers, Inc. In press.