The behavioural responses and tolerance of freshwater benthic cyclopoid copepods to hypoxia and anoxia

Tinson, Stuart; Laybourn‐Parry, Johanna

doi:10.1007/bf00024230

Cited by 37 publications

(26 citation statements)

References 15 publications

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“…Male C. confluens were less resistant than egg sac bearing and non-gravid females. A similar sex-specific response has been shown by Tinson & Laybourn-Parry (1985). The authors found female cyclopoid copepods to be more tolerant of anoxia than males.…”

Section: Discussionsupporting

confidence: 73%

Effects of anoxia and sulphide on populations of Cletocamptus confluens (Copepoda, Harpacticoida)

Vopel¹,

Dehmlow²,

Johansson³

et al. 1998

Mar. Ecol. Prog. Ser.

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ABSTRACT-The harpacticoid copepod Cletocamptus confluens (Schmeil 1894), which inhabits mud pools of sheltered shallow water bays, was studied to analyse its ability to survive in anoxia and sulphidic anoxia, its normoxic oxygen consumption, and its glycogen content. In addition, the impact of anoxia and sulphide on the viability of eggs and the time-scale of development of nauplii and copepodids was investigated. AI1 measurc'ments were carried out on laboratory-reared specimens. The mean survival rate of non-gravid females dld not drop below 9Gu,> after 96 h of exposure to both anoxia and sulphidic anoxia. Males and egg sac bearing females showed lower survival rates. The weight-specific glycogen content of non-gravid females (891 8 ? 51.0 pm01 glycosyl units g-' dw) was more than twice as high as that of males (404.3 i 31.4 pm01 glycosyl units g-' dw) and decreased to about 63% during 96 h exposure to anoxic and anoxic/sulphidic conditions. The weight-spccific oxygen consumption of males and non-gravid females amounted to 223.8 i 61.7 and 59.7 z 8.1 pm01 O2 g-' dw h-', respectively. The viability of eggs was not affected during 96 h of anoxia and sulphidic anoxia, and hatching of nauplii was delayed for the period of exposure. The developmental time of nauplii and copepodids from eggs incubated in anoxic or anoxic/sulphidic conditions did not dlffer from that of the normoxic controls. Sex-specific responses to anoxia and possible consequences for population dynamlcs of C. confluens are discussed.

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Section: Discussionsupporting

confidence: 73%

Effects of anoxia and sulphide on populations of Cletocamptus confluens (Copepoda, Harpacticoida)

Vopel¹,

Dehmlow²,

Johansson³

et al. 1998

Mar. Ecol. Prog. Ser.

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“…Low concentrations of edible phytoplankton may preclude vertical migration. Many epiphytic and benthic microcrustaceans also exhibit strong vertical movements with declining oxygen concentrations (Meyers 1980;Tinson and Laybourn-Parry 1985). In a study of horizontal migration,…”

mentioning

confidence: 99%

Major contribution from littoral crustaceans to zooplankton species richness in lakes

Walseng

Hessen

Halvorsen

et al. 2006

Limnology & Oceanography

103

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A study of pelagic and littoral species richness among microcrustaceans in 2,466 Norwegian lakes recorded 120 crustacean species: 77 cladocerans, 31 cyclopoids, and 12 calanoids, respectively. Very few species were strictly pelagic, and the pelagic crustacean zooplankton species were by far outnumbered by their littoral counterparts. More than two-thirds of the total crustacean species numbers in lakes were accounted for by species with a littoral preference. A considerable number of species occurred with low frequency, and the median total number of crustacean species in the lakes was only 14. A majority of littoral species also occurred commonly in pelagic samples, and vice versa. Some species are truly both littoral and pelagic, and nearly all species occurring in pelagic samples were also common in littoral samples. A high proportion of the common littoral species was only recorded occasionally in pelagic samples, and should thus be considered strictly littoral. There was no significant correlation between lake area and species richness for pelagic or littoral species. Our findings demonstrate the importance of including littoral species when assessing microcrustacean diversity in lakes, and we question the practice of considering species as either pelagic or littoral, because a majority of the recorded species was common in both habitats.

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“…Hanazato and Yasuno (1989) and Lampert et al (2010) suggested that Daphnia adults, which often overwinter, can build their populations faster than smaller zooplankton forms, which possibly happened in the case of the studied forest ponds. Additionally, the occurrence of some littoral species, such as e.g., M. viridis which is known to be well adapted for living in ponds characterized by rich organic matter and oxygen deficiencies, proves these arguments (Tinson and Laybourn-Parry, 1985;Rybak and Błędzki, 2010). In the forest ponds, a high concentration of ammonium was also observed, which is likely to have come from leaf decomposition in anaerobic conditions.…”

Section: Discussionmentioning

confidence: 92%

Effect of surrounding trees and dry rush presence on spring zooplankton community in an urban pond complex

Basińska

Świdnicki

Kuczyńska‐Kippen

2014

Ann. Limnol. - Int. J. Lim.

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-The role of both natural and artificial ponds in supporting biodiversity and as an infrequent habitat for aquatic organisms in urban areas may be greater than that in more rural landscapes. Moreover, biological succession and the dynamics of zooplankton can differ in urban ponds where we may observe a specific combination of environmental factors (e.g., an increase of eutrophication and pollution) compared to other water ecosystems. Therefore, ten urban artificial ponds were examined and the type of direct catchment area was established as the most important factor in the determination of zooplankton distribution. Different environmental factors structured zooplankton distribution between forest and meadow ponds. Low concentrations of oxygen as well as lack of fish, which was an effect of high concentrations of ammonium nitrogen, were responsible for the occurrence of littoral species and large crustacean species (e.g., Daphnia hyalina and Megacyclops viridis) in the case of forest ponds. Fish predation on large crustaceans and favourable food conditions (high concentration of chlorophyll a) created suitable conditions for the occurrence of pelagic species (e.g., Keratella cochlearis and K. quadrata) in the case of meadow ponds. Moreover, soon after the ice cover melted and before new macrophytes developed, previous-year dry rush stems created valuable refuge conditions for zooplankton in this type of pond. Despite anthropogenic pollution resulting from the close vicinity of the agglomeration of Poznan´and unfavourable conditions attributed to the spring season a diverse zooplankton community occurred, reaching the level of 119 species in total.

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The behavioural responses and tolerance of freshwater benthic cyclopoid copepods to hypoxia and anoxia

Cited by 37 publications

References 15 publications

Effects of anoxia and sulphide on populations of Cletocamptus confluens (Copepoda, Harpacticoida)

Effects of anoxia and sulphide on populations of Cletocamptus confluens (Copepoda, Harpacticoida)

Major contribution from littoral crustaceans to zooplankton species richness in lakes

Effect of surrounding trees and dry rush presence on spring zooplankton community in an urban pond complex

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