PR 00138: verschil tussen versies
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Relaying of mussel seed to sites with favorable conditions is an important practice for professional mussel farmers. However, initial mussel losses after relaying is often extremely high. Seeding density is an important factor for minimizing this initial loss. Relaying in high densities will result in dense mussel patches that increase intraspecific competition for food and space. Competition inhibits mussel growth and promotes mussel losses. Simultaneously mussels need each other for protection, a facilitation effect that might be more beneficial at higher densities. We expect that food levels play an important role in the relation between competition and facilitation. This is tested in a field experiment where the effect of mussel density and fluctuations in food levels, are related to mussel aggregation and performance. | |||
'''Research type:''' Field & lab experiments (Eastern Scheldt & HZ, Vlissingen or WMR, Yerseke) | |||
'''Research level''': Minor, final thesis (BSc. level) | |||
'''Perquisit'''e: Driver license, preferably affinity with biology, lab work skills | |||
'''Researcher involved:''' Research group aquaculture (Eva Hartog/Jacob Capelle) | |||
'''Period:''' 2nd semester 2017-2018 | |||
'''Status:''' Open | |||
{{Project config}} | {{Project config}} | ||
{{Project | {{Project | ||
|Supercontext= | |Supercontext=PR_00317 | ||
|Project type=Standaard | |Project type=Standaard | ||
|Name=Temporal variation in mussel performance: role of aggregation and mussel density on mussel patch scale | |Name=Temporal variation in mussel performance: role of aggregation and mussel density on mussel patch scale | ||
|Start date= | |Start date=2018/02/01 | ||
|End date= | |End date=2018/06/30 | ||
|Summary=Competition inhibits mussel growth and promotes mussel losses. Simultaneously mussels need each other for protection, a facilitation effect that might be more beneficial at higher densities. We expect that food levels play an important role in the relation between competition and facilitation. This is tested in a field experiment where the effect of mussel density and fluctuations in food levels, are related to mussel aggregation and performance. | |||
|Show summary=Ja | |Show summary=Ja | ||
|Show navigation tree=Ja | |Show navigation tree=Ja | ||
| Regel 12: | Regel 25: | ||
|Show participants=Ja | |Show participants=Ja | ||
|Show sources=Ja | |Show sources=Ja | ||
|Show edit button=Ja | |||
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Huidige versie van 14 mei 2020 om 15:21
Relaying of mussel seed to sites with favorable conditions is an important practice for professional mussel farmers. However, initial mussel losses after relaying is often extremely high. Seeding density is an important factor for minimizing this initial loss. Relaying in high densities will result in dense mussel patches that increase intraspecific competition for food and space. Competition inhibits mussel growth and promotes mussel losses. Simultaneously mussels need each other for protection, a facilitation effect that might be more beneficial at higher densities. We expect that food levels play an important role in the relation between competition and facilitation. This is tested in a field experiment where the effect of mussel density and fluctuations in food levels, are related to mussel aggregation and performance.
Research type: Field & lab experiments (Eastern Scheldt & HZ, Vlissingen or WMR, Yerseke)
Research level: Minor, final thesis (BSc. level)
Perquisite: Driver license, preferably affinity with biology, lab work skills
Researcher involved: Research group aquaculture (Eva Hartog/Jacob Capelle)
Period: 2nd semester 2017-2018
Status: Open