Cycles and rates of reproduction of six Baltic Sea bivalves of different zoogeographical origin

Oertzen, J.-A. von

doi:10.1007/bf00373213

Cited by 38 publications

(31 citation statements)

References 11 publications

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“…The duration of larval occurrence was much shorter at lower latitudes (1-2 months at 42°N) (Fig. 3) compared to high latitudes (H.arctica: 8 months; M.truncata: 5 months), as also seen in other boreal bivalve species such as Macoma calcerea (Oertzen 1972).…”

Section: Seasonality Of Arctic Bivalve Larvaementioning

confidence: 70%

Seasonality of bivalve larvae within a high Arctic fjord

et al. 2016

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The temporal and spatial distribution of larval plankton of high latitudes is poorly understood. The objective of this work is to identify the occurrence and abundance of pelagic bivalve larvae within a high Arctic fjord (Adventfjorden, Svalbard) and to reveal their seasonal dynamics in relation to environmental variables-temperature, salinity and chlorophyll a-between December 2011 and January 2013. We applied a combination of DNA barcoding of mitochondrial 16S ribosomal RNA and morphological analysis to identify the bivalve larvae found within the plankton and demonstrate a strong seasonality in the occurrence of bivalve larvae, largely coinciding with periods of primary productivity. Seasonal occurrences of bivalve larval species differ from those known for other populations across species' biogeographic distribution ranges. Serripes groenlandicus, which is of circum-Arctic distribution, demonstrated a later occurrence than Mya truncata or Hiatella arctica, which are of predominantly boreal or cosmopolitan distribution, respectively. S. groenlandicus larvae demonstrate the most pronounced response to seasonality, with the shortest presence in the water column. Establishing latitudinal differences in the occurrence of bivalve larvae enhances our understanding of how reproductive traits of marine invertebrates may respond to climate-driven seasonal shifts in the occurrence of primary productivity.

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Section: Seasonality Of Arctic Bivalve Larvaementioning

confidence: 70%

Seasonality of bivalve larvae within a high Arctic fjord

et al. 2016

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“…Clams from Sfiderfahrt and Millionenviertel contained significantly higher Zn concentrations than those from Dorschmulde and Vejsn~is Channel (Tukey test, P< 0.05) ( Table 1). This difference may be because clams from Stiderfahrt and Millionenviertel were sampled in July, when all mature A. islandica are in a reproductive state (Jaeckel, 1952;von Oertzen, 1972). It is known that reproduction is accompanied by variations in the physio- logical conditions of molluscs and in the affinity of metals for biochemical substances (Oesterberg, 1974).…”

Section: Resultsmentioning

confidence: 99%

Levels of trace metals and effect of body size on metal content and concentration in Arctica islandica L. (Mollusca: Bivalvia) from Kiel Bay, Western Baltic

Swaileh¹,

Adelung²

1994

Marine Pollution Bulletin

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The levels of four trace metals (Cd, Cu, Pb, and Zn) in the whole soft body and in different organs of the ocean quahog Arctica islandica were evaluated from four stations in Kiel Bay, Western Baltic. The relationships between the contents and concentrations of these metals and body size (weight and length) were also investigated. Double logarithmic plots of metal contents and concentrations against dry body weight and shell length, respectively, show straight-line relationships. The results indicate that smaller individuals have higher concentrations of Cu and Zn, two essential metals, while larger individuals have higher concentrations of Cd and Pb, two non-essential metals. The calculated regression slopes of metal content against dry-body weight revealed that Cd and Cu appear to be affected by maturation since two different slopes are observed for both metals before and after maturation. This was not obvious for Pb and Zn. Pooled slopes of metal content against dry-body weight for all animal sizes indicated that Cu and Zn have a one common slope of (0.82) and Cd and Pb another common one of (1.51). Plots of metal concentrations against shell length indicated also that Cu and Zn have one common slope of (--0.54) and Cd and Pb another one of (1.56). Moreover, it was possible to calculate one final slope of (1.53) for Cd and Pb from both content/weight and concentration/length plots. This indicates that A. islandica may have one metabolic strategy for the essential metals and another for the non-essential metals.

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“…Spisula solidissima (Jones et al 1978) and Arctica islandica (Thompson et al 1980). However Astarte-populations in the Baltic, as shown by Oertzen (1972), do not have a defined spawning season, so that it seems improbable that spawning has a great influence on growth band formation, although we cannot exclude that individuals of Astarte have distinct spawning events which influence growth. Further research is necessary to corroborate our assumption that growth band formation is annual, but at present it seems that this is the most probable assumption.…”

Section: Discussionmentioning

confidence: 91%

Shell growth of Astarte elliptica (Bivalvia) from Kiel Bay (Western Baltic Sea)

Trutschler¹,

Samtleben²

1988

Mar. Ecol. Prog. Ser.

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Information on growth and age of Astarte elhptica (Brown, 1827), a common bivalve in muddy sand sediments in Kiel Bay below 15 m water depth, is scattered and inconclusive. Unchanged size-frequency distributions from October 1984 to September 1985 at the 'Siiderfahrt' sampling station, 21 m water depth, suggest very slow growth. There was no linear correlation between the distinct concentric external shell ridges and internal shell growth bands. Internal growth bands were counted from acetate peels of sections of the tooth region examined by scanning electron microscopy. Evidence for an annual periodicity of growth band formation is discussed. A life span of about 20 yr is deduced for A. elhptica in l e l Bay.

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Cycles and rates of reproduction of six Baltic Sea bivalves of different zoogeographical origin

Cited by 38 publications

References 11 publications

Seasonality of bivalve larvae within a high Arctic fjord

Seasonality of bivalve larvae within a high Arctic fjord

Levels of trace metals and effect of body size on metal content and concentration in Arctica islandica L. (Mollusca: Bivalvia) from Kiel Bay, Western Baltic

Shell growth of Astarte elliptica (Bivalvia) from Kiel Bay (Western Baltic Sea)

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