Zooplankton
- Augmenting biologging with supervised machine learning to study in situ behavior of the medusa Chrysaora fuscescens
Summary: High-resolution motion sensors paired with supervised machine learning can be used to infer fine-scale in situ behavior of zooplankton over long durations.
- Vision is highly sensitive to oxygen availability in marine invertebrate larvae
Editors' Choice: Reduced oxygen availability decreases retinal sensitivity and temporal resolution in marine invertebrate larvae, which may impact visual behaviors crucial to survival and increase vulnerability of species to ocean oxygen loss.
- Complementary roles of photoperiod and temperature in environmental sex determination in Daphnia spp.
Summary: Male sex determination in daphnids is controlled by photoperiod and temperature, which may act by increasing levels of the Met subunit of the methyl farnesoate receptor.
- Using a shell as a wing: pairing of dissimilar appendages in atlantiid heteropod swimming
Highlighted Article: Atlantiid heteropod swimming is unique in that these planktonic snails use a swimming fin and shell as paired wings to execute complex appendage kinematics, including a double clap-and-fling.
- Exposure to CO2 influences metabolism, calcification and gene expression of the thecosome pteropod Limacina retroversa
Summary: Severity and duration of CO2 exposure influence calcification and respiration differentially in Limacina retroversa, as shown by organismal and gene expression responses, while captivity interactively influences respiration and gene expression.
- Underwater flight by the planktonic sea butterfly
Highlighted Article: The zooplanktonic sea butterfly Limacina helicina ‘flies’ underwater using many of the same fluid dynamic ‘tricks’ that very small insects use to fly in air.
- Chemical cues from fish heighten visual sensitivity in larval crabs through changes in photoreceptor structure and function
Highlighted Article: Larval crabs are more responsive to light following exposure to chemical cues from fish and this increase in photobehavior coincides with physiological and structural changes in the eye.