Working group: Invertebrates ecophysiology

Ecophysiology of species with complex life cycles

We study the ecology and physiology of marine invertebrates with focus on species with complex life cycles.

Our research covers three main areas:

Stress physiology:

We use decapod crustaceans (lobsters, shrimps, and crabs) as model systems to study how early life stages cope with climate driven changes in the coastal marine environment.

Crustaceans, as most marine benthic invertebrates, develop through a complex life cycle characterized by a pelagic and dispersive larval phase, followed by a metamorphosis to a benthic juvenile. Variations in larval survival and physiological quality can affect recruitment, population dynamics and connectivity.

In particular, we study effects of multiple stressors or drivers (e.g. salinity, temperature, and food limitation) and extreme events (e.g. marine heatwaves) on larval physiology through laboratory experiments, and biochemical and molecular methodologies.

Furthermore, in addition, our work includes multipopulation comparisons, as current research considers local adaptations may drive the responses of organisms across latitudinal gradients. Research in this area is integrated with those described below through model simulations.

Benthic ecology and marine heatwaves:

We use intertidal zones as model systems to study the effects of extreme events (e.g. marine heatwaves, hypoxia) on species’ distribution patterns. Our current research includes:

  • Marine heatwaves: mapping of intertidal thermal landscapes, role of habitat forming species as mitigators of thermal stress.
  • Effects of environmental gradients at different spatial scales through spatial statistical methods.

Marine invasions:

We study the process of invasions from the perspective of dispersive larvae through comparisons of physiological performance of exotic versus native species. In addition, we combine laboratory experiments with field observations and modelling to predict range expansion.

The team

Group Leader

Dr. Gabriela Torres

Group Members

Noé Espinosa (PostDoc)

Jan-Philipp Geißel (PhD student)

Margot Deschamps (PhD student)

Julia Haafke (TA)

Ragna Bergmann (TA)

Janis Ortgies (TA)

Kendra Mainprize (DAAD Scholar)

Associate Scientist

Dr. Luis Giménez

Cooperation Partner

Prof. Dr. Steffen Harzsch