Prolonged seasonal growth stagnation demonstrated for the bivalve Mercenaria mercenaria

Prolonged seasonal growth stagnation demonstrated for the bivalve Mercenaria mercenaria

764 E. Biological Oceanography metabolic inhibitors (dichlorophenyl dimethylurea, chloramphenicol, cycloheximide, carbonyl cyanide m-chlorophenyl hy...

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764

E. Biological Oceanography

metabolic inhibitors (dichlorophenyl dimethylurea, chloramphenicol, cycloheximide, carbonyl cyanide m-chlorophenyl hydrazone) on plankton samples from the Sargasso Sea and eastern Canadian Arctic. Solar radiation sometimes inhibited and sometimes stimulated substrate uptake, _>65% of which was due to picoplankton. Cycloheximide did not affect picoplankton ~4C-labeling, suggesting that prokaryotic photosynthesis was more important than heterotrophic assimilation. Bedford Inst. of Oceanogr., Dartmouth, NS B2Y 4A2, Canada. (mjj) 85:5219

OLR (1985) 32 (9)

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EIS0. Biochemistry

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Sager, Gttnther, 1984. Prolonged seasonal growth stagnation

demonstrated

for

the

bivalve

OLR(1985)32(9)

E. BiologicalOceanography

Mereenarla mercenari& Beitr. Meeresk., 51:5766. (In German, English abstract.)

For a temporary slowing down and momentary stagnation, growth functions can be modified as recently shown (Sager 1982). This method does not apply to stagnation over weeks or even months, however; a second revision is necessary for such behaviour. A new formula is presented and tested for Mercenaria mercenaria.

765 85:5235

Hendrickx, M.E. and A.M. van der Heiden, 1983. New records of twelve species of crustaceans along the Pacific coast of Mexico. An. Inst. Cienc. Mar Limnol., Univ. nac. aut6n. M~x., 10(1):277280. Range extensions along the Pacific coast of Mexico are reported for Isopoda (2 spp.), Anomura (2 spp.) and Brachyura (8 spp.). UNAM, Inst. de Cienc. del Mar y Limnol., Mazatlan, Sinaloa, Mexico.

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Attramadal, Y.G., J.H. Foss~t and H.L. Nilsson, 1985. Changes In behaviour and eye--morphology of Boreomysis megMops G.O. Sars (Crnstacea: Mysidacea) following exposure to short periods of artificial and natural daylight. J. expl mar. Biol. Ecol., 85(2):135-148. Dept. of Biol., Univ. of Oslo, P.B. 1064, Blindern, Oslo 3, Norway. 85:5231 Baba, Keiji and Shigemitsu Shokita, 1984. Palinurel/us wieneck//, a rare species of spiny lobster found in Okinawa-Jima of the Rynkyus (Crustacea: Decapoda: Palinurldae). Galaxea, 3(2): 117-118. Biol. Lab., Kumamoto Univ., Kumamoto 860, Japan. 85:5232

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