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Mating behavior in three species of Pseudodiaptomus (Copepoda: Calanoida)
Quantitative studies of mating behavior between conspecific and heterospecific pairs of three closely related species in the genus Pseudodiaptomus reveal differences in the timing of life-historyExpand
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Acoustical Detection of High-Density Krill Demersal Layers in the Submarine Canyons off Georges Bank
High-density demersal layers of krill have been detected in the submarine canyons off Georges Bank by means of a high-frequency, dual-beam bioacoustical technique. Krill densities in these demersalExpand
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Fecal pellet production and diel migratory behavior by the euphausiid Meganyctiphanes norvegica effect benthic-pelagic coupling
Abstract Observations made during submersible dives revealed that high densities of fecal pellets (50–325 particles m −3 ) accumulated at night in 5–24 m thick layers coincident with the pycnoclineExpand
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The ultrastructure of oogenesis and yolk formation in Labidocera aestiva (Copepoda: Calanoida)
Yolk formation in the oocytes of the free‐living, marine copepod, Labidocera aestiva (order Calanoida) involves both autosynthetic and heterosynthetic processes. Three morphologically distinct formsExpand
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A new species of coronate Scyphomedusa from the Bahamas, Atorella octogonos
The family Atorellidae (Class Scyphozoa, Order Coronata) is distinct from all other coronates in having hexamerous symmetry superimposed on the typical scyphozoan tetramerous symmetry. All atorellidExpand
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The ultrastructure of spermatogenesis in Labidocera aestiva (copepoda: Calanoida)
The fine structure of spermatogenesis is described for the marine calanoid copepod Labidocera aestiva. The mature spermatozoon is a slightly flattened, disc‐shaped cell without a flagellum or anExpand
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Mating behavior of Labidocera aestiva (Copepoda: Calanoida)
The calanoid copepod Labidocera aestiva Wheeler exhibits a ritualized mating behavior. Sensory hairs and spines and integumental pores on the male and female are believed to play a regulatory role inExpand
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