Freshwater ostracodes of Canada. Part III. Family Candonidae

Delorme, L. D.

doi:10.1139/z70-194

Cited by 77 publications

(69 citation statements)

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“…1. Candona acuminata (Fisher, 1954) [Turner 1895, Sharp 1897, Delorme 1970 2. Candona acuta Hoff, 1942[Hoff 1942, Delorme 1970 Delorme, 1970 [Delorme 1970] 4.…”

Section: List Of the Recent Species And Subspecies Recorded In North mentioning

confidence: 99%

“…Candona acuta Hoff, 1942[Hoff 1942, Delorme 1970 Delorme, 1970 [Delorme 1970] 4. Candona albicans Brady, 1864[Hoff 1942, Delorme, 1970Marmonier and Ward 1990] Mehes, 1914 [Furtos 1936] 6. Candona annae septentrionalis Furtos, 1935[Furtos 1935] 7.…”

Section: List Of the Recent Species And Subspecies Recorded In North mentioning

confidence: 99%

“…Research of the freshwater free-living ostracods of the United States has long been completely neglected, and only recently Marmonier and Ward (1990) described two new species from interstitial waters of South Platte River (Colorado), one of which belongs to the subfamily Candoninae. On the other hand, Delorme (1967aDelorme ( , 1970 greatly enriched our knowledge of the Canadian Candoninae and reported a total of 33 species, three of them new to science.…”

Section: Introductionmentioning

confidence: 99%

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Recent Candoninae (Crustacea, Ostracoda) of North America

Karanovic¹

2006

Rec West Aust Mus Sup

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“…1. Candona acuminata (Fisher, 1954) [Turner 1895, Sharp 1897, Delorme 1970 2. Candona acuta Hoff, 1942[Hoff 1942, Delorme 1970 Delorme, 1970 [Delorme 1970] 4.…”

Section: List Of the Recent Species And Subspecies Recorded In North mentioning

confidence: 99%

Section: List Of the Recent Species And Subspecies Recorded In North mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Recent Candoninae (Crustacea, Ostracoda) of North America

Karanovic¹

2006

Rec West Aust Mus Sup

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“…It is thus assumed that all ostracodes, even though disarticulated, are found in place. The preference of Candona for deep freshwater bodies (Delorme, 1970) eliminates the possibility of Candona being washed into a marine basin from small ice-marginal ponds of fresh water.…”

Section: Micropaleontologymentioning

confidence: 99%

“…Candona, therefore, must be salinity-tolerant to some extent, however Delorme (1970) noted that Candona will not live exclusively in a marine environment and is most commonly found in deeper waters of the Great Lakes. It is quite tolerant of sulphate-rich brackish water and less tolerant of water with high chlorinity.…”

Section: Micropaleontologymentioning

confidence: 99%

The Late Glacial-Early Glaciomarine Transition in the Ottawa Valley: Evidence for a Glacial Lake?

Naldrett¹

2007

gpq

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Rhythmites overlying either cross-bedded sand or diamicton are found throughout the Ottawa Valley. Previously thought to be restricted glacial lake sediments, they are now known to be widespread, and represent a large proglacial lake which preceded the Champlain Sea. The rhythmites consist of thin silt and clay laminae which fine upwards and contain slump, flame, shear (ice-contact?) and fluid escape structures. Ice-rafted material is common. The ostracode Candona cf. C. subtriangulata occurs in low numbers and indicates a freshwater body with depth of approximately 200 m. The alternation of silt and clay rhythmite laminae is characteristic of deposition by underflow and overflow currents, respectively. To produce underflows with typical glacial outwash concentrations may require discharge into fresh rather than marine water. This evidence and the widespread occurrence of rhythmites throughout the Ottawa Valley and the Rideau Lakes area suggests a large proglacial lake as the sedimentary basin. The lake is tentatively correlated with the Belleville Phase of Glacial Lake Iroquois and the Ft. Ann Phase of Glacial Lake Vermont. These phases occurred at depths consistent with the requirements for Candona survival. The water body which existed in the Ottawa area is here called Lake Rideau after the type locality where rhythmites were first observed. Generation of such a lake favours the more conventional "window blind" model for déglaciation rather than the calving bay concept.On trouve tout au long de la vallée des Outaouais des rythmites qui recouvrent soit du sable en stratification oblique, soit un diamicton. On les a d'abord considérées comme des sédiments glacio-lacustres localisés, mais on sait maintenant qu'elles sont répandues et qu'elles témoignent de l'existence d'un grand lac glaciaire qui aurait précédé la Mer de Champlain. Les rythmites sont constituées de lamines de silt et d'argile qui s'affinent vers le haut et qui renferment des structures de glissement, en flamme, de cisaillement (de contact glaciaire?) et d'échappement fluidal. Les matériaux transportés par radeaux de glace sont courants. L'ostracode Candona cf. C. subtriangulata que l'on trouve en petit nombre témoigne de l'existence d'une nappe d'eau douce d'une profondeur d'environ 200 m. L'alternance de lamines rythmiques de silt et d'argile est caractéristique d'une mise en place par des courants de sous-écoulement et de débordement, respectivement. Pour qu'il y ait sous-écoulement accompagné de concentrations d'épandage fluvio-glaciaire. Ie déversement doit se faire en eaux douces plutôt qu'en milieu marin. Cet élément de preuve ajouté au fait que l'on trouve des rythmites partout dans la région de la vallée des Outaouais et des lacs Rideau laisse croire qu'un grand lac glaciaire a servi de bassin de sédimentation. À titre d'essai, on a établi la corrélation entre ce lac et la phase Belleville du Lac glaciaire Iroquois et la phase de Fort Ann du Lac glaciaire Vermont. Ces phases correspondent à des profondeurs d'eau conformes à la survie de C...

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The Ecology of Temporary Streams I. The Faunas of Two Canadian Streams

Williams

Hynes

1976

Intl Review of Hydrobiology

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This, thefirst of two papers on the ecology of temporary streams, describes, in detail, the faunas of two such habitats in southeastern Canada. The adaptive mechanisms for coping with the summer drought are documented for a variety of species and faunal succession is shown to occur from the stream stage (fall-winter) through the pool stage (spring) to the terrestrial (summer). I. IntroductionThis is the first of two papers dealing with the ecology of temporary stream faunas. I n it, we propose to present the detailedfindings of work on two temporary streams in Ontario, Canada. This will lay the foundations for the second paper in which we will attempt to summarize what is known of these habitats and to underline how the members of what is essentially an aquatic community, deal with the terrestrial phase of their environment. Previous literatureThere have been few studies on temporary streams as such, but there is a copious literature dealing with temporary ponds and other small water bodies. Whereas the differences between permanent lotic and lentic habitats may be very considerable indeed, in the temporary water situation, because many of these streamsflow slowly and often dry up to pools, we find considerable overlaps.ABELL (1956) in a study of intermittency in foothill streams of central California, made extensive faunal lists and tried to explain these in terms of three groups: 7 62 D. D. WILLIAMS and H. B. N. HYNES 1. a rapidly appearing but essentially temporary fall association which tended towards a herbivo-2. a winter and spring succession which tended to replace the fall forms and represented a step 3. a summer cleanup crew consisting mostly of predators and scavengers. He found that these animals employed three methods of survival in the dry stages of these habitats, namely, dormancy within the habitat, transfer of activity to another environment, and retreat to a more favourable habitat to await resumption of flow. The latter was apparently the most variably and successfully used, permitting almost any sort of life history timing. Eighty percent of ABELL'S temporary stream fauna were insects.CLIFFORD (1966) in a study of a temporary stream in Indiana, divided the fauna into two groups with respect to season. The first was a late summer-fall association, characteristic of the stream when i t was dry or nearly so. It consisted of adventitious species and adult aquatic beetles. The second was a later winter-spring association, characteristic of conditions of flow. Its constituents were mainly permanent residents which appeared year after year and were the basis for a stable community. Apparently, many of the latter were not specifically adapted t o this kind of environment, but possessed certain pre-adaptations which favoured them over others. Lirceus fontinah and Crangonyx forbesi were the two most abundant organisms and both survived the summer drought as small individuals buried in the substrate.HARRISON (1966) observed that the Munwahuku stream near Salisbury, Rhodesia, became dry for 3 mo...

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Freshwater ostracodes of Canada. Part III. Family Candonidae

Cited by 77 publications

References 0 publications

Recent Candoninae (Crustacea, Ostracoda) of North America

Recent Candoninae (Crustacea, Ostracoda) of North America

The Late Glacial-Early Glaciomarine Transition in the Ottawa Valley: Evidence for a Glacial Lake?

The Ecology of Temporary Streams I. The Faunas of Two Canadian Streams

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