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Sarah Giltz

Sarah Giltz has written 22 posts for oceanbites

Eavesdropping prawns get more than they bargained for

Marine animals living below the surface have to put up with noise generated by human activity. Heavy shipping traffic can bring a lot of noise. How does the common prawn respond? Sarah GiltzI am a doctoral candidate in Ecology and Evolutionary Biology at Tulane University. My research focuses on the larval dispersal and development of […]

Honey, we shrunk the seafood

Atlantic surfclams have gotten smaller over the last thirty years. This modeling study explores how temperature and how we fish can change the average size of individuals in a population. Sarah GiltzI am a doctoral candidate in Ecology and Evolutionary Biology at Tulane University. My research focuses on the larval dispersal and development of the […]

What makes a male squid put in reproductive effort?

Male squid can vary the effort they put into each mating event. Find out what type of female makes the males put in the most energy. Sarah GiltzI am a doctoral candidate in Ecology and Evolutionary Biology at Tulane University. My research focuses on the larval dispersal and development of the blue crab in the […]

Variety in the personal lives of triggerfish

Triggerfish don’t all opt for monogamy. Read on to see what mating strategies they use and why there is so much variety. Sarah GiltzI am a doctoral candidate in Ecology and Evolutionary Biology at Tulane University. My research focuses on the larval dispersal and development of the blue crab in the Gulf of Mexico. When […]

Sea turtles vs Airguns

As we look for oil beneath the sea floor we cause a ruckus. How do sea turtles react and how can we protect them from the disturbance? Sarah GiltzI am a doctoral candidate in Ecology and Evolutionary Biology at Tulane University. My research focuses on the larval dispersal and development of the blue crab in […]

A new king (crab) of the Antarctic

Temperatures are increasing at the poles (and worldwide) and shifting the balance of predator-prey interactions. Predatory king crabs are moving into the Antarctic. How will it change the ecosystem? Sarah GiltzI am a doctoral candidate in Ecology and Evolutionary Biology at Tulane University. My research focuses on the larval dispersal and development of the blue […]

As the Caribbean sand heats up female sea turtles rule the beach

The sex of sea turtle eggs depends on the temperature of incubation. What happens when the sand heats up? Sarah GiltzI am a doctoral candidate in Ecology and Evolutionary Biology at Tulane University. My research focuses on the larval dispersal and development of the blue crab in the Gulf of Mexico. When not concerning myself […]

How important are claws to stone crabs?

The stone crab fishery does not remove the whole crab, only the claws. How do the clawless crabs fare when returned to the wild? Sarah GiltzI am a doctoral candidate in Ecology and Evolutionary Biology at Tulane University. My research focuses on the larval dispersal and development of the blue crab in the Gulf of […]

Tiny lobsters, big problems.

Larval lobsters face potentially dangerous situations, find out how they fare against a couple important environmental stressors (salinity and pH changes). Sarah GiltzI am a doctoral candidate in Ecology and Evolutionary Biology at Tulane University. My research focuses on the larval dispersal and development of the blue crab in the Gulf of Mexico. When not […]

Sex and parasitism on the open sea and in a fish’s mouth.

Parisites live in fish mouths and undergo opportunistic sex changes. Sarah GiltzI am a doctoral candidate in Ecology and Evolutionary Biology at Tulane University. My research focuses on the larval dispersal and development of the blue crab in the Gulf of Mexico. When not concerning myself with the plight of tiny crustaceans I can be […]

Marine invertebrates- no backbone just makes them easier to eat.

Invertebrate fisheries are on the rise, invertebrate fishery management needs to rise along with it. This study examines the the impact of fishing invertebrate species on population numbers of animals in the ecosystem. Sarah GiltzI am a doctoral candidate in Ecology and Evolutionary Biology at Tulane University. My research focuses on the larval dispersal and […]

Seeing in the dark: zooplankton in Arctic winter.

Winter nights are very long and dark near the poles. How well can krill and other zooplankton see to get around? Sarah GiltzI am a doctoral candidate in Ecology and Evolutionary Biology at Tulane University. My research focuses on the larval dispersal and development of the blue crab in the Gulf of Mexico. When not […]

Sea urchins and their pathogens: a relationship that’s heating up.

The relationship between sea urchin, their amoeba pathogens and their kelp prey is changing with the climate. Find out how! Sarah GiltzI am a doctoral candidate in Ecology and Evolutionary Biology at Tulane University. My research focuses on the larval dispersal and development of the blue crab in the Gulf of Mexico. When not concerning […]

One fish, two fish, small fish- don’t fish!

Fishery management is complicated, but important. Read more about one way to protect young fish from the Icelandic longline fishery. Sarah GiltzI am a doctoral candidate in Ecology and Evolutionary Biology at Tulane University. My research focuses on the larval dispersal and development of the blue crab in the Gulf of Mexico. When not concerning […]

Busy penguins strive to find an energy balance.

Penguins find a way to balance the extra work of the breeding season while still finding time to go diving to find food. Sarah GiltzI am a doctoral candidate in Ecology and Evolutionary Biology at Tulane University. My research focuses on the larval dispersal and development of the blue crab in the Gulf of Mexico. […]

Are bigger moms better moms?

We know that larger female fish produce more eggs, but does this really mean they produce more young that grow into the next generation? Sarah GiltzI am a doctoral candidate in Ecology and Evolutionary Biology at Tulane University. My research focuses on the larval dispersal and development of the blue crab in the Gulf of […]

Two Crabs and an Alga- a story of protection and evolution.

Tiny mud crabs try to escape big blue crab predators but without the help of evolution to guide shelter choices what will they do? Sarah GiltzI am a doctoral candidate in Ecology and Evolutionary Biology at Tulane University. My research focuses on the larval dispersal and development of the blue crab in the Gulf of […]

Sea-ing fewer stars: Virus linked to sea star mass die offs.

Sea stars have been dying by the millions on the Pacific coast of the U.S. and now we have an explanation. Sarah GiltzI am a doctoral candidate in Ecology and Evolutionary Biology at Tulane University. My research focuses on the larval dispersal and development of the blue crab in the Gulf of Mexico. When not […]

New housing options in unlikely places: Animals and oil platforms.

Real estate in the open ocean is a hot commodity. This research shows how enthusiastically fish and invertebrates take advantage of new habitat. Sarah GiltzI am a doctoral candidate in Ecology and Evolutionary Biology at Tulane University. My research focuses on the larval dispersal and development of the blue crab in the Gulf of Mexico. […]

Parasitic crabs steal food and the possibility of offspring from unsuspecting snails.  

Crabs find a home inside sea snails leading to reproductive disaster. Sarah GiltzI am a doctoral candidate in Ecology and Evolutionary Biology at Tulane University. My research focuses on the larval dispersal and development of the blue crab in the Gulf of Mexico. When not concerning myself with the plight of tiny crustaceans I can […]

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