Macrocystis pyrifera (Linnaeus) C.Agardh

Classification:
Empire Eukaryota
Kingdom Chromista
Phylum Ochrophyta
Class Phaeophyceae
Order Laminariales
Family Laminariaceae
Genus Macrocystis

Pictures

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Northern California. 08 Mar 2011. Wendell Wood (ww@oregonwild.org). © Wendell Wood (ww@oregonwild.org).

Macrocystis pyrifera, Point Lonsdale, Victoria, Australia. M.D. Guiry" . © Michael Guiry (mike.guiry@nuigalway.ie).

Macrocystis pyrifera. M.D. Guiry" . © Michael Guiry (mike.guiry@nuigalway.ie).

Macrocystis pyrifera , Point Lonsdale, Victoria, Australia. M.D. Guiry. © Michael Guiry (mike.guiry@nuigalway.ie).

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Micropeuce mucronata (Harvey) Kylin ex E.C.Oliveira

Macrocystis pyrifera (Linnaeus) C.Agardh Grytviken, South Georgia

Publication details
Macrocystis pyrifera (Linnaeus) C.Agardh 1820: 47

Original publication: Agardh, C.A. (1820 '1821'). Species algarum rite cognitae, cum synonymis, differentiis specificis et descriptionibus succinctis. Volumen primum. Pars prima. pp. [i-iv], [1]-168. Lundae [Lund]: ex officina Berlingiana.
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Type species
This is the type species (holotype) of the genus Macrocystis.

Status of name
This name is of an entity that is currently accepted taxonomically.

Basionym
Fucus pyrifer Linnaeus

Type information
Type locality: in oceano AEthiopico (South Atlantic Ocean) (Silva, Basson & Moe 1996: 641). Type: LINN 1274.59? (Womersley 1987: 328). Notes: In LINN, 1274.59? (see Womersley (1954a: 111)).

Homotypic Synonym(s)
Fucus pyrifer Linnaeus 1771
Laminaria pyrifera (Linnaeus) J.V.Lamouroux 1813

Heterotypic Synonym(s)
Macrocystis pyrifera var. humboldtii Bonpland 1808
Macrocystis humboldtii (Bonpland) C.Agardh 1822
Macrocystis angustifolia Bory de Saint-Vincent 1826
Macrocystis integrifolia Bory de Saint-Vincent 1826
Macrocystis communis Bory de Saint-Vincent 1826
Macrocystis latifolia Bory de Saint-Vincent 1826
Fucus giganteus Gaudichaud 1826
Macrocystis planicaulis C.Agardh 1839
Macrocystis orbigniana Montagne 1839
Macrocystis tenuifolia Postels & Ruprecht 1840
Macrocystis pyrifera var. luxurians J.D.Hooker & Harvey 1847
Macrocystis luxurians (J.D.Hooker & Harvey) J.Agardh 1848
Macrocystis pelagica Areschoug 1848
Macrocystis laevis C.H.Hay 1986

General environment
This is a marine species.

Common names

(as Macrocystis pyrifera (Linnaeus) C.Agardh)
English: Giant Kelp, Sea Ivy (Madlener 1977), Giant Pacific Kelp (McConnaughey 1985).

(as Macrocystis integrifolia Bory de Saint-Vincent)
English: Small perennial kelp, Giant perennial kelp (McConnaughey 1985).

Common names used in commerce, often for edible algae
iodine kelp {Eng}; varech porte-poire {Fr}; "kelp, giant"; "kelp, iodine"

Usage notes
At the height of production 140,000 tonnes were harvested each year from the state-owned kelp beds off the southern California shores (Abbott & Hollenberg, 1976). Plants reach 45 meters long and grow in waters 6-20 (-80) m deep, and grow at up to 30 cm per day. In 2005, US alginate firm ISP shut down activities at its San Diego plant, shifting production to Girvan in Scotland. After 76 years in operation, the San Diego plant represented the USA's largest kelp harvesting facility, but operating costs eventually forced closure. Kelp continues to be mechanically harvested off the coast of southern California for feed for abalone aquaculture.

Distribution by country

Detailed distribution with sources
(as Macrocystis pyrifera (Linnaeus) C.Agardh)
Atlantic Islands: Gough Island (Chamberlain 1965), Tristan da Cunha (Baardseth 1941).

North America: Alaska (Lindeberg & Lindstrom 2010), Baja California (Taylor 1945), Baja California Sur (Pacific) (Riosmena-Rodriguez et al. 2012), California (Abbott & Hollenberg 1976, Stewart 1991, Spalding, Foster & Heine, 2003, Hernandez-Carmona et al 2006, Cho et al. 2006, Carney 2011, Miller 2012, Miller 2012), Mexico (Ladah & Zertuche-Gonzalez 2004 , Schubert et al. 2006, Colombo-Pallotta et al 2006, Castaneda-Fernández de Lara et al. 2010 ).

Central America: Islas Revillagigedo (Taylor 1945).

South America: Argentina (Boraso & Zaixso 2011, Asensi & Küpper 2012 ), Chile (Santelices 1989, Ramírez & Santelices 1991, Hoffmann & Santelices 1997, Buschmann et al 2005, Rothausler et al. 2011, Henriquez et al. 2011), Falkland Islands (van Tussenbroek 1993), Peru (Ramírez & Santelices 1991), Uruguay (Coll & Oliveira 1999).

Indian Ocean Islands: Amsterdam Island (Wynne & Scott 1989, Silva, Basson & Moe 1996), Indian Ocean (Silva, Basson & Moe 1996), St. Paul Island (Silva, Basson & Moe 1996).

Australia and New Zealand: New Zealand (, , , , Chapman & Chapman 1980, Adams 1994, Adams 1997, Hurd & Pilditch 2011, Harper et al. 2012), Tasmania (Womersley 1987).

Antarctic and the subantarctic islands: Antarctica/Subantarctic Islands (Papenfuss 1964), Macquarie Island (Ricker 1987), South Georgia (John et al. 1994).

(as Macrocystis angustifolia Bory de Saint-Vincent)
Central America: México (Pacific) (Pedroche et al. 2008).

Africa: South Africa (Silva, Basson & Moe 1996, Stegenga, Bolton & Anderson 1997).

Australia and New Zealand: Lord Howe Island (Lewis 1985), South Australia (Womersley 1987, Huisman 2000), Tasmania (Huisman 2000), Victoria (Womersley 1987, Huisman 2000, Marconi et al. 2011).

(as Macrocystis integrifolia Bory de Saint-Vincent)
North America: Alaska (Lindstrom 1977, Scagel et al. 1989, Lindeberg & Lindstrom 2010), British Columbia (Scagel et al. 1989, Druehl et al 2005, Lane & Saunders 2005, Lane et al. 2006, McDevit & Saunders 2010), California (Scagel et al. 1989), Oregon (Hansen 1997), Washington (Scagel et al. 1989).

Central America: México (Pacific) (Pedroche et al. 2008).

South America: Chile (Santelices 1989, Ramírez & Santelices 1991, Hoffmann & Santelices 1997, Buschmann et al 2005).

(as Macrocystis planicaulis C.Agardh)
Atlantic Islands: Canary Islands (Price, John & Lawson 1978).

Key references
Adams, N.M. (1997). Common seaweeds of New Zealand. pp. [1]-48, 48 pls. Christchurch: Canterbury University Press.

Braune, W. (2008). Meeresalgen. Ein Farbbildführer zu den verbreiteten benthischen Grün- Braun- und Rotalgen der Weltmeere. pp. [1]-596, pls 1-266 (colour photographs). Ruggell: A.R.G. Gantner Verlag.

Demes, K.W, Graham, M.H. & Suskiewicz, T.S. (2009). Phenotypic plasticity reconciles incongruous molecular and morphological taxonomies: the giant kelp, Macrocystis (Laminariales, Phaeophyceae), is a monospecific genus (note). Journal of Phycology 45(6): 1266-1269.

Lewis, R.J. & Neushul, M. (1995). Intergeneric hybridization among five genera of the family Lessoniaceae (Phaeophyceae) and evidence for polyploidy in a fertile Pelagophycus x Macrocystis hybrid. Journal of Phycology 31: 1012-1017, 2 figs, 1 table.

Lindeberg, M.R. & Lindstrom, S.C. (2010). Field guide to the seaweeds of Alaska. pp. [i-]iii-iv, 1-188, numerous col. photographs. Fairbanks: Alaska Sea Grant College Program.

Macaya, E.C. & Zuccarello, G.C. (2010). DNA barcoding and genetic divergence in the giant kelp Macrocystis (Laminariales). Journal of Phycology 46(4): 736-742.

McHugh, D.J. (2003). A guide to the seaweed industry. FAO Fisheries Technical Paper 441: x + 105, 64 figs.

Pedroche, P.F., Silva, P.C., Aguilar Rosas, L.E., Dreckmann, K.M. & Aguilar Rosas, R. (2008). Catálogo de las algas benthónicas del Pacífico de México II. Phaeophycota. pp. [i-viii], i-vi, 15-146. Mexicali & Berkeley: Universidad Autónoma Metropolitana and University of California Berkeley.

Smith, G.M. (1944). Marine algae of the Monterey Peninsula. pp. i-ix, 1-622, 98 pls. Stanford: Stanford University Press.

Womersley, H.B.S. (1987). The marine benthic flora of southern Australia. Part II. pp. 481, 169 figs, 1 table, 8 plates, 4 maps. Adelaide: South Australian Government Printing Division.

SAG Cultures
SAG Cultures may be viewed at http://sagdb.uni-goettingen.de/showstrains.php?genus=Macrocystis&species=pyrifera

SCCAP Cultures
Cultures from the Scandinavian Culture Collection of Algae at the University of Copenhagen (SCCAP) and Protozoa may be viewed at http://www.sccap.dk/search/algaebase.asp?Genus=Macrocystis&Species=pyrifera

NCBI Nucleotide Sequences

Created: 24 March 1998 by M.D. Guiry

Verified by: 28 October 2010 by M.D. Guiry

Accesses: This record has been accessed by users 43215 times since it was created.

References
(Please note: only references with the binomials in the title are included. The information is from the Literature database.)

Alveal, K., Romo, H. & Avila, M. (1982). Estudio del ciclo de vida de Macrocystis pyrifera de Isla Navarino, Chile. Gay. Bot. 39: 1-12.
Amsler, C.D. & Neushul, M. (1989). Chemotactic effect of nutrients onspores of the kelps Macrocystis pyrifera and Pterygophora californica. Marine Biology, Berlin 102: 557-564.
Amsler, C.D. & Neushul, M. (1990). Nutrient stimulation of spore settlement in the kelps Pterygophora californica and Macrocystis pyrifera. Marine Biology, Berlin 107(2): 297-304.
Amsler, C.D. & Neushul, M. (1991). Photosynthetic physiology and chemical composition of spores of the kelps Macrocystis pyrifera, Nereocystis leutkeana, Laminaria farlowii, and Pterygophora californica (Phaeophyceae). Journal of Phycology 27: 26-34.
Anderson, B.S., Hunt, J.W., Turpen, S.L., Coulon, A.R. & Martin, M. (1990). Copper toxicity to microscopic stages of giant kelp Macrocystis pyrifera - interpopulation comparisons and temporal variability. Marine Ecology Progress Series 68(1-2): 147-156.
Anderson, L. M. (1984). Iron reduction by juvenile Macrocystis pyrifera (L.) C. Agardh. Proceedings of the International Seaweed Symposium 11: 493-497.
Arnold, K.E. & Manley, S.L. (1985). Carbon allocation in Macrocystis pyrifera (Phaeophyta): intrinsic variability in photosynthesis and respiration. Journal of Phycology 21: 154-167, 13 figs, 2 tables.
Asensi, A., Beucher, M. & Delepine, R. (1981). Etude sur la croissance et le developpement de Macrocystis pyrifera (L.) C. Ag. aux iles Kerguelen. Proceedings of the International Seaweed Symposium 8: 278-289.
Barrales, H. (1976). Relevamiento de Macrocystis pyrifera y normas para su explotación. Inf. Téc. CNP 1.3.1: 74.
Barrales, H.L. & Lobban, C.S. (1975). The comparative ecology of Macrocystis pyrifera, with emphasis on the forests of Chubut, Argentina. Journal of Ecology 63: 657-677.
Boraso de Zaixso, A.L. & Paternoster, I. (1980). Observaciones preliminares sobre la reproducción de Macrocystis pyrifera en la costa Argentina. Contribución CNP 30: 9.
Boraso de Zaixso, A.L., Zaixso, H. & Taylor, R. (1982). Cortes experimentales en bosques de Macrocystis pyrifera en Bahía Camarones (prov. de Chubut, Rep. Argentina). Contribución CNP 67: 22.
Boraso, A.L. & Taylor, R. (1980). Dinámica de los bosques de Macrocystis pyrifera en Bahía Camarones (Chubut). Resultado de las campañas I y II (8/77-5/78 y 7/78-4/79). Contribución CENPAT 24: 16.
Brown, M.T., Nyman, M.A., Keogh, J.A. & Chin, N.K.M. (1997). Seasonal growth of the giant kelp Macrocystis pyrifera in New Zealand. Marine Biology, Berlin 129: 417-424.
Brzezinski, M.A., Reed, D.C. & Amsler, C.D. (1993). Neutral lipids as major storage products in zoospores of the giant kelp Macrocystis pyrifera (Phaeophyceae). Journal of Phycology 29: 16 -23, 5 figs, 1 table.
Buggeln, R.G., Fensom, D.S. & Emerson, C.J. (1985). Translocation of ¹¹C-photoassimilate in the blade of Macrocystis pyrifera (Phaeophyceae). Journal of Phycology 21: 35-40.
Buschmann, A.H., Moreno, C., Vasquez, J.A. & Hernandez-Gonzalez, M.C. (2007). Reproduction strategies of Macrocystis pyrifera (Phaeophyta) in Southern Chile: The importance of population dynamics. Proceedings of the International Seaweed Symposium 18: 349-356.
Butler, A., Soedjak, H.S., Polnefuller, M., Gibor, A., Boyen, C. & Kloareg, B. (1990). Studies of Vanadium-bromoperoxidase using surface and cortical protoplasts of Macrocystis pyrifera (Phaeophyta). Journal of Phycology 26: 589-592.
Candia, A., Romo, H., Alveal, K. & Dellarossa, V. (1979). Cultivo unialgal de Macrocystis pyrifera (L.) C. Ag. de la Bahía de Concepción-Chile. Rickia 8: 75-83.
Carney, L.T. & Edwards, M.S. (2010). Role of nutrient fluctuations and delayed development in gametophyte reproduction by Macrocystis pyrifera (Phaeophyceae) in southern California. Journal or Phycology 46(5): 987-996.
Chirife, J. & Gardner, R. G. (1969). Características de secado de algas de la especie: Macrocystis pyrifera. Proceedings of the International Seaweed Symposium 6: 671-684.
Clendennen, S.K., Zimmerman, R.C., Powers, D.A. & Alberte, R.S. (1996). Photosynthetic response of the giant kelp Macrocystis pyrifera (Phaeophyceae) to ultraviolet radiation. Journal of Phycology 32: 614-620, 3 figs, 2 tables.
Clendenning, K. A. (1964). Photosynthesis and growth in Macrocystis pyrifera. Proceedings of the International Seaweed Symposium 4: 55-65.
Clendenning, K.A. (1962). Determination of fresh weight, solids, ash and equilibrium moisture in Macrocystis pyrifera. Botanica Marina 3-4: 204-218.
Colombo-Pallotta, M.F., Garcia-Mendoza, E. & Ladah, L.B. (2006). Photosynthetic performance, light absorption, and pigment composition of Macrocystis pyrifera (Laminariales, Phaeophyceae) blades from different depths. Journal of Phycology 42: 1225-1234.
Coyer, J.A., Robertson, D.L. & Alberte, R.S. (1994). Genetic variability within a population and between diploid/haploid tissue of Macrocystis pyrifera (Phaeophyceae). Journal of Phycology 30: 545-552, 1 fig, 3 tables.
Coyer, J.A., Robertson, D.L. & Alberte, R.S. (1995). Genetic variability and parentage in Macrocystis pyrifera (Phaeophyceae) using multi-locus DNA fingerprinting. Journal of Phycology 31: 819-823, 2 tables.
Coyer, J.A., Steller, D.L. & Alberte, R.S. (1995). Note: A field-compatible method for extraction of fingerprint-quality DNA from Macrocystis pyrifera (Phaeophyceae). Journal of Phycology 31: 177-180, 2 figs, 1 table.
Cribb, A.B. (1954). Macrocystis pyrifera (L.) Ag. in Tasmanian waters. Australian Journal of Marine and Freshwater Research 5: 1-34.
Davison, I.R. & Polne-Fuller, M. (1990). Note: Photosynthesis in protoplasts of Macrocystis pyrifera (Phaeophyta). Journal of Phycology 26: 383-387, 3 figs.
Davison, I.R. & Polnefuller, M. (1990). Photosynthesis in Protoplasts of Macrocystis pyrifera (Phaeophyta). Journal of Phycology 26: 384-387.
de Nys, R., Jameson, P.E. & Brown, M.T. (1991). The influence of cytokinins on the growth of Macrocystis pyrifera. Botanica Marina 34: 465-467.
de Nys, R., Jameson, P.E., Chin, N., Brown, M.T. & Sanderson, K.J. (1990). The cytokinins as endogenous growth regulators in Macrocystis pyrifera (I.) C. Ag. (Phaeophyceae). Botanica Marina 33: 467-475.
Dean, T.A. & Jacobsen, F.R. (1984). Growth of juvenile Macrocystis pyrifera (Laminariales) in relation to environmental factors. Marine Biology, Berlin 83: 301-311.
Delf, E.M. & Levyn, M. (née M. Michell) (1926). Reproduction in Macrocystis pyrifera, Ag.. An. Bot. 40: 503-506.
Devinny, J.S. & Volse, L.A. (1978). Effects of sediments on the development of Macrocystis pyrifera gametophytes. Marine Biology 48: 343-348.
Deysher, L.E. & Dean, T.A. (1984). Critical irradiance levels and the interactive effects of quantum irradiance and dose on gametogenesis in the giant kelp, Macrocystis pyrifera. Journal of Phycology 20: 520-524, 3 figs, 1 table.
Deysher, L.E. & Dean, T.A. (1986). Interactive effects of light and temperature on sporophyte production in the giant kelp Macrocystis pyrifera. Marine Biology, Berlin 93: 17-20.
Dixon, J., Schroeter, S.C. & Kastendiek, J. (1981). Effects of the encrusting Bryozoan, Membranipora membranacea, on the loss of blades and fronds by the giant kelp, Macrocystis pyrifera (Laminariales). Journal of Phycology 17: 341-345, 1 fig, 6 tables.
Dizerbo, A.-H. & Floc'h, J.-Y. (1974). L'algue geante Macrocystis pyrifera et le probleme de son introduction. Penn ar Bed 9(No 78): 407-415.
Druehl, L. D. (1984). Morphological and physiological responses of Macrocystis pyrifera in nitrate enrichment. Proceedings of the International Seaweed Symposium 11: 471-474.
Druehl, L.D. (1984). Morphological and physiological responses of Macrocystis pyrifera to nitrate enrichment. Hydrobiologia 116/117: 471-474.
Eardley, D.D., Sutton, C.W., Hempel, W.M., Reed, D.C. & Ebeling, A.W. (1990). Monoclonal anitbodies specific for sulfated polysaccharides on the surface of Macrocystis pyrifera (Phaeophyceae). Journal of Phycology 26: 54-62, 8 figs, 1 table.
Edgar, G.J. (1987). Dispersal of faunal and floral propagules associated with drifting Macrocystis pyrifera plants. Marine Biology, Berlin 95: 599-610.
Eyras, M.C. & Boraso de Zaixso, A.L. (1994). Observaciones sobre la fertilidad de los esporofitos de Macrocystis pyrifera en la costa Argentina. Naturalia Patagónica 2: 33-47.
Fain, S.R. & Murray, S.N. (1982). Effects of light and temperature on net photosynthesis and dark respiration of gametophytes and embryonic sporophytes of Macrocystis pyrifera. Journal of Phycology 18: 92-98.
Fork, D.C., Herbert, S.K. & Malkin, S. (1991). Light energy distribution in the brown alga Macrocystis pyrifera (Giant Kelp). Plant Physiol 95(3): 731-739.
Foster, M.S. (1975). Algal succession in a Macrocystis pyrifera forest. Marine Biology, Berlin 32: 313-329.
Foster, M.S. (1975). Regulation of algal community development in a Macrocystis pyrifera forest. Marine Biology, Berlin 32: 331-342.
Gerard, V. A. & North, W. J. (1984). Measuring growth, production, and yield of the giant kelp, Macrocystis pyrifera. Proceedings of the International Seaweed Symposium 11: 321-324.
Gerard, V.A. & Kirkman, H. (1984). Ecological observations on a branched , loose-lying form of Macrocystis pyrifera (L.) C. Agaradh in New Zeland. Botanica Marina 27: 105-109.
Gherardini, G. L. & North, W. J. (1972). Electron microscopic studies of Macrocystis pyrifera zoospores, gametophytes, and early sporophytes. Proceedings of the International Seaweed Symposium 7: 172-180.
Grenville, D.J., Petersen, R.L., Barrales, H.L. & Gerrath, J.F. (1982). Structure and development of the secretory cells and duct system in Macrocystis pyrifera (L.) C. A. Agardh. Journal of Phycology 18: 232-240.
Gutierrez, A., Correa, T., Munoz, V., Santibanez, A., Marcos, R., Caceres, C. & Buschmann, A.H. (2007). Farming of the giant kelp Macrocystis pyrifera in southern Chile for development of novel food products. Proceedings of the International Seaweed Symposium 18: 33-41.
Guzmán del Próo, S.A., de la Campa de Guzmán, S. & Granados, J.L. (1971). El sargazo gigante (Macrocystis pyrifera) y su explotación en Baja California. Rev. Soc. Mex. de Hist. Nat., México 32(12): 15-57.
Haines, K.C. & Wheeler, P.A. (1978). Ammonium and nitrate uptake by the marine macrophytes Hypnea musciformis (Rhodophyta) and Macrocystis pyrifera (Phaeophyta). Journal of Phycology 14: 319-324, 6 figs, 3 tables.
Hall, M.A. & Boraso de Zaixso, A.L. (1981). Ciclo de los bosques de Macrocystis pyrifera en Bahía Camarones, prov. de Chubut, Argentina. Ecosur 6(12): 165-184.
Hall, M.A. (1980). Evaluación de los recursos de Macrocystis pyrifera Costa de la Prov. de Chubut entre Pta. Lobos y Pta Gaviota. Contribución CENPAT 31: 5.
Hart, M. R., Fremery, D. d., Lyon, C. K. & Kohler, G. O. (1979). Processing of Macrocystis pyrifera (Phaeophyceae) for fermentation to methane. Proceedings of the International Seaweed Symposium 9: 493-498.
Haxo, F. T. & Neushul, M. J. (1958). Studies on the growth of the giant Kelp, Macrocystis pyrifera. Proceedings of the International Seaweed Symposium 3: 17-18.
Hempel, W.M., Sutton, C.W., Kaska, D., Ord, D.C., Reed, D.C., Laur, D.R., Ebeling, A.W. & Eardley, D.D. (1989). Purification of species specific antibodies to carbohydrate components of Macrocystis pyrifera (Phaeophyta). Journal of Phycology 25: 144-149, 5 figs.
Henriquez, L.A., Buschmann, A.H., Maldonado, M.A., Graham, M.H., Hernández-González, M.C., Pereda, S.V. & Bobadilla, M.I. (2011). Grazing on giant kelp microscopic phases and the recruitment success of annual populations of Macrocystis pyrifera (Laminariales, Phaeophyta) in southern Chile. Journal of Phycology 47(2): 252-258.
Hernández-Carmona, G., García, O., Robledo, D. & Foster, M. (2000). Restoration techniques for Macrocystis pyrifera (Phaeophyceae) populations at the southern limit of their distribution in México. Botanica Marina 43: 273-284, 4 figs, 5 tables.
Hernandez-Carmona, G., Hughes, B. & Graham, M.H. (2006). Reproductive longevity of drifting kelp Macrocystis pyrifera (Phaeophyceae) in Monterey Bay, USA. Journal of Phycology 42: 1199-1207.
Hernández-Carmona, G., Robledo, D. & Serviere-Zaragoza, E. (2001). Effect of nutrient availability on Macrocystis pyrifera recruitment and survival near Its southern limit off Baja California. Botanica Marina 44: 221-229.
Hernández-Carmona, G., Rodríguez-Montesinos, Y.E., Casas-Valdes, M.M., Vilchis, M.A. & Sánchez-Rodríguez, I. (1991). Evaluación de los mantos de Macrocystis pyrifera (Phaeophyta, Laminariales) e Baja California, México. III Verano 1986 y su variación estacional. Cienc. mar. 17(4): 121-145.
Hurd, C.L. & Pilditch, C.A. (2011). Flow-induced morphological variations affect diffusion boundary-layer thickness of Macrocystis pyrifera (Heterokontophyta, Laminariales). Journal of Phycology 47(2): 341-351.
Jackson, G.A. (1977). Nutrients and production of giant kelp, Macrocystis pyrifera, off southern California. Limnology and Oceanography 22: 979-995.
Jackson, G.A., James, D.E. & North, W.J. (1985). Morphological relationships among fronds of giant kelp Macrocystis pyrifera off La Jolla, California. Marine Ecology Progress Series 26: 261-270.
James, D.E., Stull, J.K. & Wheeler, J.N. (1990). Toxicity of sewage-contaminated sediment cores to Macrocystis pyrifera (Laminariales, Phaeophyta) gametophytes determined by digital image analysis. Hydrobiologia 204/205: 483-489.
Kain, J.M. (1982). Morphology and growth of the giant kelp Macrocystis pyrifera in New Zealand and California. Marine Biology, Berlin 67: 143-157.
Kimura, R. S. & Foster, M. S. (1984). The effects of harvesting Macrocystis pyrifera on the algal assemblage in a giant kelp forest. Proceedings of the International Seaweed Symposium 11: 425-428.
Kinlan, B.P., Graham, M.H., Sala, E. & Dayton, P.K. (2003). Arrested development of giant kelp (Macrocystis pyrifera, Phaeophyceae) embryonic sporophytes: a mechanism for delayed recruitment in perennial kelps?. Journal of Phycology 39: 47-57.
Kopczak, C.D. (1994). Variability of nitrate uptake capacity in Macrocystis pyrifera (Laminariales, Phaeophyta) with nitrate and light availability. Journal of Phycology 30: 573-580, 5 figs, 4 tables.
Kopczak, C.D., Zimmerman, R.C. & Kremer, J.N. (1991). Variation in nitrogen physiology and growth among geographically isolated populations of the giant kelp, Macrocystis pyrifera (Phaeophyta). Journal of Phycology 27: 149-158.
Kuwabara, J.S. & North, W.J. (1980). Culturing microscopic stages of Macrocystis pyrifera (Phaeophyta) in Aquil, a chemically defined medium. Journal of Phycology 16: 546-549, 3 tables.
Kuwabara, J.S. (1981). Gametophytic growth by Macrocystis pyrifera (Phaeophyta) in response to various iron and zinc concentrations. Journal of Phycology 17: 417-419, 1 fig, 2 tables.
Kühnemann, O. (1970). Algunas consideraciones sobre los bosques de Macrocystis pyrifera. Physis 29(79): 273-296.
Ladah, L.B. & Zertuche-Gonzalez, J.A. (2004). Giant kelp (Macrocystis pyrifera) survival in deep water (25-40 m) during El Nino of 1997-1998 in Baja California, Mexico. Botanica Marina 47: 367-372.
Ladah, L.B., Zertuche-González, J.A. & Hernández-Carmona, G. (1999). Giant kelp (Macrocystis pyrifera, Phaeophyceae) recruitment near its southern limit in Baja California after mass disappearance during ENSO 1997-1998. Journal of Phycology 35: 1106-1112.
Larripa, I. B., Murdy de Pargament, M., Labal de Vinuesa, M. & Mayer, A., M. S. (1987). Biological activity in Macrocystis pyrifera from Argentina: sodium alginate, fucoidan and laminaran. II. Genotoxicity. Proceedings of the International Seaweed Symposium 12: 491-496.
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Cite this record as:
Guiry, M.D. & Guiry, G.M. 2013. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. http://www.algaebase.org; searched on 23 May 2013.

Algaebase taxon LSID: urn:lsid:algaebase.org:taxname:73339