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Fouling development and its effect on the growth of juvenile giant scallops (Placopecten magellanicus) in suspended culture
Abstract We examined the development of the fouling community on pearl nets and its effect on the growth of juvenile Placopecten magellanicus at Grande-Riviere and Gascons in the Baie des Chaleurs.Expand
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Reproductive cycle and seasonal feeding activity of the neogastropod Buccinum undatum
The whelk Buccinum undatum L. in the northern Gulf of St. Lawrence has a distinct annual reproductive cycle. The ovary and pallial oviduct of the female, and the seminal vesicle of the male, showExpand
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Temporal variation in community interfaces: kelp-bed boundary dynamics adjacent to persistent urchin barrens
We examined, over 2 years, factors affecting the temporal stability of the lower limit of kelp beds (Alaria esculenta) at five subtidal sites in the Mingan Islands, northern Gulf of St. Lawrence. TheExpand
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Gametogenesis and Spawning of the Sea Cucumber Psolus fabricii (Duben and Koren).
The reproductive cycle of the sea cucumber Psolus fabricii was studied in a population from the St. Lawrence Estuary in eastern Canada from May 1988 through August 1989. The gonad consists ofExpand
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Community development following removal of urchins, Strongylocentrotus droebachiensis, from the rocky subtidal zone of the St. Lawrence Estuary, Eastern Canada
SummaryThe role of sea urchins, Strongylocentrotus droebachiensis, in structuring the rocky subtidal community was examined at Anse aux Basques on the north shore of the St. Lawrence Estuary, Québec.Expand
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Behaviour and timing of copulation and egg-laying in the neogastropod Buccinum undatum L.
The reproductive behaviour of the boreal neogastropod Buccinum undatum L. was studied in the Archipel de Mingan, northern Gulf of St. Lawrence and in the laboratory. In the field, mating begins inExpand
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Biochemical composition and energy allocation in the tropical scallop Lyropecten (Nodipecten) nodosus during the months leading up to and following the development of gonads
We quantified biochemical constituents of the major body components of the scallop Lyropecten nodosus (initially measuring 9.4 mm in shell height) cultured at 8, 21 and 34 m in depth in the Golfo deExpand
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Direct Coupling of Marine Invertebrate Spawning with Phytoplankton Blooms
Spawning of green sea urchins and blue mussels may be triggered by a heat-stable metabolite released by various species of phytoplankton. Mussels require a higher phytoplankton density for a maximumExpand
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The role of energy intake rate in prey and habitat selection of common eiders Somateria mollissima in winter : a risk-sensitive interpretation
We measured prey selection and habitat profitability of common eiders Somateria mollissima L. wintering in the Gulf of St. Lawrence, Quebec, Canada. Prey selection was evaluated by comparing theExpand
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Multiple factors explain the covering behaviour in the green sea urchin, Strongylocentrotus droebachiensis
Although numerous species of sea urchins often cover themselves with small rocks, shells and algal fragments, the function of this covering behaviour is poorly understood. Diving observations showedExpand
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