Influence of salinity on early development in the spined loach

Bohlen, Jörg

doi:10.1111/j.1095-8649.1999.tb00668.x

Cited by 15 publications

(10 citation statements)

References 5 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Their intensity might be so severe that embryos die before hatching. Similar observations were made by Bohlen (), who incubated spined loach eggs at water salinity above 6 ppt.…”

Section: Discussionsupporting

confidence: 86%

See 1 more Smart Citation

Influence of water salinity on the survival of embryos and growth of the sichel larvaePelecus cultratus(L.) under controlled conditions

et al. 2016

View full text Add to dashboard Cite

The purpose of this study was to analyse the influence of water salinity on the incubation of eggs and growth of the larvae of sichel Pelecus cultratus (L.) under controlled conditions. The following water salinity was considered: 3, 6, 9, 12, 15 and 0 ppt for the control. The eggs incubation time depended on the water salinity, lasting from 56.3°D [9 ppt] to 107.7°D [0 ppt]. The higher water salinity, shorter the incubation time. The highest survivability of larvae was obtained in water of the salinity equal 3 ppt and in freshwater, where respectively 87% and 84% of the larvae survived. No hatched larvae were obtained in water of the salinity of 12 and 15 ppt, as all embryos died during the experiment. Larvae were reared up for 21 days. The final body weight, depending on the water salinity, reached from 43.5 mg [9 ppt] to 74.6 mg [3 ppt], at the respective body lengths of 19.3 mm and 23.2 mm. The highest body gains and lengths of larvae were observed in water of the salinity of 3 ppt. The lowest survivability of sichel larvae occurred in water of the salinity 9 ppt, where it was only 53.2%. The survivability of larvae in freshwater and water of the salinity of 3 ppt was quite similar: 96.2% and 95.6% respectively. Water salinity degree of 12 and 15 ppt appeared to be lethal for both embryos and larvae of the sichel.

show abstract

“…Their intensity might be so severe that embryos die before hatching. Similar observations were made by Bohlen (), who incubated spined loach eggs at water salinity above 6 ppt.…”

Section: Discussionsupporting

confidence: 86%

“…No such relationship was noticed in the case of embryos which develop very rapidly, e.g. in spined loach Cobitis taenia (Bohlen ).…”

Section: Discussionmentioning

confidence: 99%

Influence of water salinity on the survival of embryos and growth of the sichel larvaePelecus cultratus(L.) under controlled conditions

et al. 2016

View full text Add to dashboard Cite

show abstract

“…Owing to the fact that population fecundity from May to June in mosquitofish populations mostly relies on 1+ females (Fernández‐Delgado and Rossomanno, ), population recruitment during these months in the Rambla Salada also increased during the disturbance period. However, recruitment rates also must have been affected by the negative effects of high water salinity on metabolism and survival of larvae and juveniles (Bohlen, ).…”

Section: Discussionmentioning

confidence: 99%

Dilution stress facilitates colonization of invasive mosquitofish in a saline Mediterranean stream: population biology response

Ruiz‐Navarro

Verdiell‐Cubedo

Torralva

et al. 2012

Aquatic Conservation

View full text Add to dashboard Cite

1. Knowledge of the interplay of abiotic factors and the invasive success of exotic fish is fundamental both to proper management and the ability to predict consequences for native communities.2. The highly invasive eastern mosquitofish (Gambusia holbrooki) has been introduced worldwide; however, although salinity could limit its invasive success, the influence of variations in water salinity on its population biology has been scarcely studied.3. The present study aimed to analyse the effect of changes in water salinity on the life history and microhabitat use of a mosquitofish population inhabiting a hypersaline stream subjected to human-caused dilution stress.4. Dilution process and associated habitat changes, such as increased aquatic vegetation, available food and the spread of invasive riparian vegetation (the common reed Phragmites australis), seem to have favoured mosquitofish proliferation and colonization. 5. Dilution caused an increased somatic condition for all individuals and a higher reproductive investment of males and larger females. This led to greater survival, recruitment rates, and abundance during the period of lower salinity.6. The species showed changes in microhabitat use which could be advantageous in less saline conditions; for instance, the species preferentially used areas with the presence of P. australis as a refuge, and this pattern increased during the dilution period.7. These results support the hypothesis that human activity is one of the main forces shaping the colonization and proliferation of exotic freshwater fishes. At least in a Mediterranean context, an increase in mosquitofish abundance and the improvement of its population status could be clear indicators of the degradation of natural saline systems.

show abstract

“…1994, 1995). It is currently only found up to latitudes of 61°N compared to 65°N for the other two species (personal observations), and it requires temperatures above 18 °C to reproduce successfully (Bohlen 1999). These physiological constraints may have prevented the first lineage from colonizing Scandinavia northwards along the West Baltic coastline during the freshwater Ancylus stage, c .…”

Section: Discussionmentioning

confidence: 99%

“…However, when the climate became more suitable, salinity levels rose in the Baltic basin (4000–8000 bp ) as the North Sea broke through the Danish Straits (Donner 1995), preventing the first lineage from taking a western route into Scandinavia, which is further corroborated by the absence of asexuals there. However, the second lineage could have colonized Scandinavia along the East Baltic coastline more recently, because although it cannot survive in open salt water, C. taenia has a higher tolerance of salinity in comparison with other primary freshwater fish species (Bohlen 1999) and currently occurs in the brackish areas of some rivers in parts of the Baltic coast (Winkler 1996). Therefore, a later coastal route into Scandinavia from the Eastern Baltic, which has lower salinity than the western part, where only the second lineage occurs, could have been possible and would explain the presence of the second lineage there exclusively.…”

Section: Discussionmentioning

confidence: 99%

European colonization by the spined loach (Cobitis taenia) from Ponto‐Caspian refugia based on mitochondrial DNA variation

et al. 2005

View full text Add to dashboard Cite

In the last 20 years, new species, asexual reproduction, polyploidy and hybridization have all been reported within the genus Cobitis. An understanding of the current distribution and baseline phylogeographical history of 'true' nonhybrid Cobitis species is crucial in order to unravel these discoveries. In the present work, we investigated the phylogeography of the spined loach, Cobitis taenia, using 1126 bp of the mitochondrial cytochrome b gene from 174 individuals collected at 47 sites. In total, 51 haplotypes that differed at 49 positions (4.35%) were detected. We deduce that C. taenia survived European glaciations in at least three refugees in the Ponto-Caspian area. Two of these refugees each provided a major lineage that recolonized Europe in separate directions: one westward to England and the other spreading north into Russia before moving west. A third (minor) lineage that contributed little to the recolonization of Europe was also revealed--remaining near its Black Sea refuge. However, more recent history was difficult to resolve with colonization from a more western refugium during the last glacial maximum (LGM) a distinct possibility. Nested clade analysis indicates a pattern of restricted gene flow with isolation by distance at the first two levels and overall. Unlike many other European freshwater fish species, the Danube is not part of the current distribution of C. taenia, nor was it used as either a refuge or a source of colonization of Europe. Low genetic diversity within C. taenia suggests that its colonization of Europe is relatively recent. Demographic analyses revealed a history of recent expansion and isolation by distance.

show abstract

Influence of salinity on early development in the spined loach

Cited by 15 publications

References 5 publications

Influence of water salinity on the survival of embryos and growth of the sichel larvaePelecus cultratus(L.) under controlled conditions

Influence of water salinity on the survival of embryos and growth of the sichel larvaePelecus cultratus(L.) under controlled conditions

Dilution stress facilitates colonization of invasive mosquitofish in a saline Mediterranean stream: population biology response

European colonization by the spined loach (Cobitis taenia) from Ponto‐Caspian refugia based on mitochondrial DNA variation

Contact Info

Product

Resources

About