Influence of salinity and temperature on growth and survival of the planktonic larvae of <i>Marenzelleria viridis</i> (Polychaeta, Spionidae)

Bochert, Raif; Fritzsche, Dirk; Burckhardt, Roger

doi:10.1093/plankt/18.7.1239

Cited by 28 publications

(16 citation statements)

References 12 publications

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“…On condition that pelagic larvae and/or juveniles occur in M. arctia, too, the species might have been introduced by ship and might be responsible for the increasing abundances of Marenzelleria in the Bothnian Sea (Karlsson and Leonardsson 2003;ICES 2005). If M. arctia, like M. neglecta and M. viridis, is not able to reproduce under 5 ppt salinity, but would be able to survive in lower salinities (Bochert et al 1996), reproducing populations may only be assumed for the southern part of the Bothnian Bay, while the northernmost populations must be recruited each year again from the southern populations of the Swedish or Finnish coast.…”

Section: Discussionmentioning

confidence: 99%

Molecular identification key based on PCR/RFLP for three polychaete sibling species of the genus Marenzelleria, and the species’ current distribution in the Baltic Sea

Blank

Laine²,

Jürss

et al. 2007

Helgol Mar Res

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Studies of Marenzelleria species were often hampered by identification uncertainties when using morphological characters only. A newly developed PCR/RFLP protocol allows a more efficient discrimination of the three species Marenzelleria viridis, Marenzelleria neglecta and Marenzelleria arctia currently known for the Baltic Sea. The protocol is based on PCR amplification of two mitochondrial DNA gene segments (16S, COI) followed by digestion with restriction enzymes. As it is faster and cheaper than PCR/sequencing protocols used so far, the protocol is recommended for large-scale analyses. The markers allow an undoubted determination of species irrespective of life stage or condition of the worms in the samples. The protocol was validated on about 950 specimens sampled at more than 30 sites of the Baltic and the North Sea, and on specimens from populations of the North American east coast. Besides this test we used mitochondrial DNA sequences (16S, COI, Cytb) and starch gel electrophoresis to further investigate the distribution of the three Marenzelleria species in the Baltic Sea. The results show that M. viridis (formerly genetic type I or M. cf. wireni) occurred in the Ö resund area, in the south western as well as in the eastern Baltic Sea, where it is found sympatric with M. neglecta. Allozyme electrophoresis indicated an introduction by range expansion from the North Sea. The second species, M. arctia, was only found in the northern Baltic Sea, where it sometimes occurred sympatric with M. neglecta or M. viridis. For Baltic M. arctia, the most probable way of introduction is by ship ballast water from the European Arctic. There is an urgent need for a new genetic analysis of all Marenzelleria populations of the Baltic Sea to unravel the current distribution of the three species.

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Section: Discussionmentioning

confidence: 99%

Molecular identification key based on PCR/RFLP for three polychaete sibling species of the genus Marenzelleria, and the species’ current distribution in the Baltic Sea

Blank

Laine²,

Jürss

et al. 2007

Helgol Mar Res

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“…Even in the experimental studies of Sanders et al (1965), large variations in overlying salinity led them to conclude that infauna were subject to less physiological stress than epifauna due to this buffering effect (Riedl et al 1972). Although Figure 3 does show seasonal variations in pore water salinity, especially at midtransect (12 to 14 m from beachface), reduced salinity variations could provide a more favorable osmotic environment and reduced physiological stress for organisms (Fritzsche and von Oertzen 1995), as well as having positive effects on development (George 1966;Bochert et al 1996) especially at critical life stages.…”

Section: Seeps As Unique Habitats/ Hydrological-ecological Interactionsmentioning

confidence: 98%

Ecological Consequences of Ground Water Discharge to Delaware Bay, United States

2004

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Submarine ground water discharge to the ocean has the potential to create estuarine conditions near the point of discharge, thereby dramatically altering local benthic habitats and ecology. Aerial thermal infrared imaging along the southwestern margin of Delaware Bay indicated abundant discharge at Cape Henlopen, Delaware, adjacent to the Atlantic Ocean. On the sandflat there, we have documented low salinity in sedimentary pore waters within 20 m of the beachface that are associated with dense assemblages (in thousands per square meter) of a deep, burrow‐dwelling polychaete worm, Marenzelleria viridis, otherwise regarded as a species characteristic of fresher, oligohaline conditions. Where present, M. viridis is a numerical and biomass dominant in a benthic community strikingly different from that in nearby nonseep locations. At Cape Henlopen, the ecological role of the ground water discharge appears to be a multifaceted one. Seeps are localized regions of significantly reduced salinity, stabilized temperature, increased nutrient flux, high microalgal abundance, and enhanced sediment stability. M. viridis feeds on sediment diatoms and may provide an important trophic linkage between microalgal growth fueled by nutrients associated with the discharging ground water and worm‐feeding predators such as bottom fish or shorebirds common on the Cape Henlopen sandflat. Calculations based on our sampling suggest that nutrients supplied by the ground water substantially exceed what is needed to support benthic biomass and productivity estimated for this site.

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“…Larvae of Polychaeta seem to constitute the organisms within mesozooplankton that best evidence the degree of pollution in estuaries (Uriarte and Villate 2004). Spionidae larvae, which seem to be particularly adapted to brackish environments (Bochert et al 1996;Lardicci et al 1997) with high tolerance to toxic substances (Sarda and Martin 1993) and oxygen deficit (Fritzsche and von Oertzen 1995), were the dominant group within the Polychaeta in this study. In addition, this group is considered as opportunistic organisms and very abundant in areas with a high concentration of organic matter (Mayer-Pinto and Junqueira 2003).…”

Section: Mesozooplankton Responsementioning

confidence: 51%

Sewage pollution effects on mesozooplankton structure in a shallow temperate estuary

Biancalana

Menéndez

Berasategui

et al. 2011

Environ Monit Assess

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The effects of a sewage effluent with no treatment on the mesozooplankton structure and the environmental quality were evaluated in the Bahía Blanca Estuary, during June to November 1995. The highest values of particulate organic matter, nutrients and specially phosphate, were observed in the effluent discharge zone. In addition, taxa richness, mesozooplankton abundance and Shannon diversity values were lower in the sewage discharge area compared with the less polluted area. Eurytemora americana and Acartia tonsa as well as larvae of Balanus glandula, Neohelice granulata and Spionidae were found in the discharge area with lower densities. These results highlight the importance of sewage effluent effects on mesozooplankton community providing background data to use in other monitoring programmes.

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Influence of salinity and temperature on growth and survival of the planktonic larvae of Marenzelleria viridis (Polychaeta, Spionidae)

Cited by 28 publications

References 12 publications

Molecular identification key based on PCR/RFLP for three polychaete sibling species of the genus Marenzelleria, and the species’ current distribution in the Baltic Sea

Molecular identification key based on PCR/RFLP for three polychaete sibling species of the genus Marenzelleria, and the species’ current distribution in the Baltic Sea

Ecological Consequences of Ground Water Discharge to Delaware Bay, United States

Sewage pollution effects on mesozooplankton structure in a shallow temperate estuary

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