Morphological convergence of resting stages of planktonic organisms: a review

Belmonte, Genuario; Miglietta, Antonella; Rubino, Fernando; Boero, Ferdinando

doi:10.1007/978-94-017-1907-0_17

Cited by 34 publications

(38 citation statements)

References 40 publications

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“…Spines, however, can also promote sinking: the majority of bloom-forming diatoms, in fact, have simple or even barbed protuberances with which they become entangled, forming aggregations. This enhances their sinking rates, removing them from the nutrient depleted area where the bloom occurred (Smetacek 1985, Belmonte et al 1997). An alternative method to determine the sinking rates of copepod eggs is to directly record the sinking of eggs in a settling chamber (Marcus & Fuller 1986).…”

Section: Discussionmentioning

confidence: 99%

“…Marine calanoid copepods often have spiny diapause eggs, while their subitaneous eggs are smooth (Ianora & Santella 1991, Belmonte & Puce 1994, Belmonte et al 1997, Chen & Marcus 1997, Couch et al 2001, which can easily be distinguished under the light microscope. Sometimes they have different colors (Cooley 1971, Walton 1985 or can be distinguished by the presence or absence of an extravitelline space (Lohner et al 1990).…”

Section: Introductionmentioning

confidence: 99%

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Differences in the density, sinking rate and biochemical composition of Centropages tenuiremis (Copepoda: Calanoida) subitaneous and diapause eggs

Wang¹,

Jiang²,

Wu³

et al. 2005

Mar. Ecol. Prog. Ser.

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The density, sinking rate and biochemical composition of Centropages tenuiremis subitaneous and diapause eggs were determined in the laboratory. The mean densities of subitaneous and diapause eggs were 1.1176 and 1.1481 g cm -3 , respectively. Based on Stokes' law, the average sinking rate was 0.0266 cm s -1 for subitaneous eggs and 0.0367 cm s -1 for diapause eggs. The dry weight, lipid, protein and carbohydrate contents of subitaneous eggs were 117.7, 32.9, 59.1 and 9.4 ng egg -1 , respectively, while those of diapause eggs were 165.0, 57.1, 81.2 and 11.2 ng egg -1 , respectively. The levels of aspartic acid, glutamic acid, glycine, methionine, isoleucine, leucine, norleucine, lysine, ammonium chloride, and arginine in diapause eggs of C. tenuiremis were significantly higher than in subitaneous eggs. Results of the study showed that there were significant physiological and biochemical differences between subitaneous and diapause eggs of C. tenuiremis.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Differences in the density, sinking rate and biochemical composition of Centropages tenuiremis (Copepoda: Calanoida) subitaneous and diapause eggs

Wang¹,

Jiang²,

Wu³

et al. 2005

Mar. Ecol. Prog. Ser.

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“…Conversely, some information is available in the marine realm, e.g. Belmonte et al (1997) suggest that the widespread spiny covering of resting stages in the marine zooplankton might be the result of a convergent evolution aimed at favouring flotation and at granting a passive defence against predators and abiotic adversities.…”

Section: Resting Stage Characteristics Size Number and Ornamentationmentioning

confidence: 99%

How do freshwater organisms cross the “dry ocean”? A review on passive dispersal and colonization processes with a special focus on temporary ponds

et al. 2014

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“…Cyst seed beds provide germling cells for the inoculation of the water column, leading to the establishment of planktonic populations when the environmental conditions are suitable once again. Cysts can remain in the sediments for decades, thus providing a genetic repository (Belmonte et al, 1997) which can potentially lead to the emergence of harmful dinoflagellate cells that could form blooms once specific environmental factors optimum for their development arise.…”

Section: Introductionmentioning

confidence: 99%

Distribution of resting cysts of the potentially toxic dinoflagellate Alexandrium pseudogonyaulax in recently-deposited sediment within Bizerte Lagoon (Mediterranean coast, Tunisia)

Triki

Daly-Yahia

Malouche³

et al. 2014

Marine Pollution Bulletin

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a b s t r a c tThis study investigated the spatial distribution of Alexandrium pseudogonyaulax resting cysts in recentlydeposited sediment of Bizerte lagoon (South-Western Mediterranean, Tunisia). This lagoon is the subject of many anthropogenic impacts, such as holding important fishing and aquaculture activities. A. pseudogonyaulax has been shown to produce Goniodomin A, which is a biologically-active compound. We showed that this dinoflagellate produces two types of resting cysts, which could be distinguished by the presence or the absence of a paratabulate wall. The average cyst density across the whole lagoon was rather high, reaching 639 cysts g À1 of dry sediment (DS). Cyst densities varied widely among the sampled stations, with the highest density of 1685 cyst g À1 DS being recorded at station 51 near a mussel farm. With respect to sediment characteristics, the highest cyst densities were found within silty sediments with high water content values. The distribution of A. pseudongoyaulax cysts in Bizerte lagoon appears to be related to hydrodynamic factors.

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Morphological convergence of resting stages of planktonic organisms: a review

Cited by 34 publications

References 40 publications

Differences in the density, sinking rate and biochemical composition of Centropages tenuiremis (Copepoda: Calanoida) subitaneous and diapause eggs

Differences in the density, sinking rate and biochemical composition of Centropages tenuiremis (Copepoda: Calanoida) subitaneous and diapause eggs

How do freshwater organisms cross the “dry ocean”? A review on passive dispersal and colonization processes with a special focus on temporary ponds

Distribution of resting cysts of the potentially toxic dinoflagellate Alexandrium pseudogonyaulax in recently-deposited sediment within Bizerte Lagoon (Mediterranean coast, Tunisia)

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