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Progression and dispersal of an introduced alga: Codium fragile ssp. tomentosoides (Chlrophyta) on the Atlantic coast of North America
1048
E. Biolo~calOceanography
85:7289 Staples, D.J. and D.J. Vance, 1985. Shoot-.term and
long-term iafluences on the ~
of
postlarval Immma l W l m Pemleus mergu~ns/s, into a mangrove estuary of the Cmlf of Carpentarta, Australia. Mar. Ecol.-Prog. Ser., 23(I):1529. Despite data on P. merguiensis from a number of locations, factors affecting the pattern of annual spawning and immigration have not been well understood. This study attempts to clarify the seasonal and interannual postlarval variations in the SE Gulf of Carpentaria. Observations included warm season ingress on flood tides, with highest immigration during spring tides. Interannual variability was ascribed to fluctuations in rainfall; abundance over larger time scales was associated with postlarval size and developmental stage. Div. of Fish. Res., CSIRO Mar. Lab., P.O. Box 120, Cleveland, Qld. 4163, Australia. (gsb)
J. nat. Hist., 19(3):555-574. Dept. of Zool., British Mus. (Nat. Hist.), Cromwell Rd., London SW7 5BD, UK.
E250. Foraminifera, ~ a , Tintinnida, etc. (see also D-SUBMARINEGEOLOGY AND GEOPHYSICS) 85:7292 Swanberg, N.R. and O.R. Anderson, 1985. The
nutrition of ~
meme ~
~wna
e ~
~
measurements of predation rates ~ by field oimervations of ~ and ~ feeding patterns. Limnol. Oceanogr., 30(3):577-597. The size of copepod prey strongly influenced dietary selectivity by Euchaeta elongata. In both single and multispecies experiments, predation by adult female E. elongata seemed invariably focused on prey 650-1000/Lm long. Because E. elongata can consume adults of small copepod prey and the young copepodid stages of large copepod prey, it causes mortality of the entire copepod assemblage. Although size is an important determinant of dietary selectivity, species-specific behavioral differences can also influence feeding rates. The number of adult females with ingested prey began to increase soon after sunset, when the predator entered the surface layers containing prey of the preferred size, thus corroborating the selective feeding pattern observed in the laboratory. Hawaii Inst. Mar. Biol., Dept. of Oeeanogr., 1000 Pope Rd., Honolulu, HI 96822, USA.
E240. ~ (except E250-Foraminifera, Radiolaria and Tintinnida) 85.'7291 Carey, P.G. and Masachika Maeda, 1985. Horimutai distribution of ~ cUhltes in fine sediments of the Chlehester Harbour [U.K.I area.
:
~
activity of some
solitary SpumeUarla. Limnol. Oceanogr., 30(3): 646-652. Lamont-Doherty Geol. Observ., Palisades, NY 10964, USA.
E260.
85:7290 Yen, J., 1985. Selective predation by the carnivmmus
OLR(1985)32 (12)
M a c r o p h y t e s (algae, grasses, etc.)
85:7293 Busdosh, M., C.L. Beehler, G.A. RobiUiard and K.R. Tarbox, 1985. Di,~ritfdon and abundance of kelp in the Alaskan Beaufort Sea near Prudhoe Bay. Arctic, 38(1): 18-22. Low densities of Laminaria solidungula and L. saccharina were found throughout the area. Approximately half the specimens were attached, usually to a pebble or shell buried in the sand-silt substrate. Kelp was most abundant in depths of 4 7 m. No density gradient from the Boulder Patch was found within the study area. Kelp may exist over additional areas of the Beaufort Sea in sufficient numbers to affect faunal diversity and biomass. Affinis, 12622 Acadia Way, Bldg. AG, Lakeside, CA 92040, USA. 85:7294 Carlton, J.T. and J.A. Scanlon, 1985. Progression and dispersal of an introduced alga: Cod~mn Athmtic eout of North America. Botanica mar.. 28(4): 155-165. The East Asian green alga Codium fragile ssp. tomentosoides was introduced from western Europe into the Long Island region about 1956. Although the literature often cites the distribution of this alga as Maine to New Jersey, its actual distribution is strikingly disjunct. The species' probable ::geographic origin and transoceanic and Atlantic coast dispersal mechanisms are discussed. Williams Coll., Mystic, CT 06355, USA. 0st)
E. Biolo~calOceanography
85:7289 Staples, D.J. and D.J. Vance, 1985. Shoot-.term and
long-term iafluences on the ~
of
postlarval Immma l W l m Pemleus mergu~ns/s, into a mangrove estuary of the Cmlf of Carpentarta, Australia. Mar. Ecol.-Prog. Ser., 23(I):1529. Despite data on P. merguiensis from a number of locations, factors affecting the pattern of annual spawning and immigration have not been well understood. This study attempts to clarify the seasonal and interannual postlarval variations in the SE Gulf of Carpentaria. Observations included warm season ingress on flood tides, with highest immigration during spring tides. Interannual variability was ascribed to fluctuations in rainfall; abundance over larger time scales was associated with postlarval size and developmental stage. Div. of Fish. Res., CSIRO Mar. Lab., P.O. Box 120, Cleveland, Qld. 4163, Australia. (gsb)
J. nat. Hist., 19(3):555-574. Dept. of Zool., British Mus. (Nat. Hist.), Cromwell Rd., London SW7 5BD, UK.
E250. Foraminifera, ~ a , Tintinnida, etc. (see also D-SUBMARINEGEOLOGY AND GEOPHYSICS) 85:7292 Swanberg, N.R. and O.R. Anderson, 1985. The
nutrition of ~
meme ~
~wna
e ~
~
measurements of predation rates ~ by field oimervations of ~ and ~ feeding patterns. Limnol. Oceanogr., 30(3):577-597. The size of copepod prey strongly influenced dietary selectivity by Euchaeta elongata. In both single and multispecies experiments, predation by adult female E. elongata seemed invariably focused on prey 650-1000/Lm long. Because E. elongata can consume adults of small copepod prey and the young copepodid stages of large copepod prey, it causes mortality of the entire copepod assemblage. Although size is an important determinant of dietary selectivity, species-specific behavioral differences can also influence feeding rates. The number of adult females with ingested prey began to increase soon after sunset, when the predator entered the surface layers containing prey of the preferred size, thus corroborating the selective feeding pattern observed in the laboratory. Hawaii Inst. Mar. Biol., Dept. of Oeeanogr., 1000 Pope Rd., Honolulu, HI 96822, USA.
E240. ~ (except E250-Foraminifera, Radiolaria and Tintinnida) 85.'7291 Carey, P.G. and Masachika Maeda, 1985. Horimutai distribution of ~ cUhltes in fine sediments of the Chlehester Harbour [U.K.I area.
:
~
activity of some
solitary SpumeUarla. Limnol. Oceanogr., 30(3): 646-652. Lamont-Doherty Geol. Observ., Palisades, NY 10964, USA.
E260.
85:7290 Yen, J., 1985. Selective predation by the carnivmmus
OLR(1985)32 (12)
M a c r o p h y t e s (algae, grasses, etc.)
85:7293 Busdosh, M., C.L. Beehler, G.A. RobiUiard and K.R. Tarbox, 1985. Di,~ritfdon and abundance of kelp in the Alaskan Beaufort Sea near Prudhoe Bay. Arctic, 38(1): 18-22. Low densities of Laminaria solidungula and L. saccharina were found throughout the area. Approximately half the specimens were attached, usually to a pebble or shell buried in the sand-silt substrate. Kelp was most abundant in depths of 4 7 m. No density gradient from the Boulder Patch was found within the study area. Kelp may exist over additional areas of the Beaufort Sea in sufficient numbers to affect faunal diversity and biomass. Affinis, 12622 Acadia Way, Bldg. AG, Lakeside, CA 92040, USA. 85:7294 Carlton, J.T. and J.A. Scanlon, 1985. Progression and dispersal of an introduced alga: Cod~mn Athmtic eout of North America. Botanica mar.. 28(4): 155-165. The East Asian green alga Codium fragile ssp. tomentosoides was introduced from western Europe into the Long Island region about 1956. Although the literature often cites the distribution of this alga as Maine to New Jersey, its actual distribution is strikingly disjunct. The species' probable ::geographic origin and transoceanic and Atlantic coast dispersal mechanisms are discussed. Williams Coll., Mystic, CT 06355, USA. 0st)