Sarah Giltz
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 […]
by oceanbites 3 weeks ago
Not all outdoor science is fieldwork. Some of the best days in the lab can be setting up experiments, especially when you get to do it outdoors. It’s an exciting mix of problem solving, precision, preparation, and teamwork. Here is- by oceanbites 2 months ago
Being on a research cruise is a unique experience with the open water, 12-hour working shifts, and close quarters, but there are some familiar practices too. Here Diana is filtering seawater to gather chlorophyll for analysis, the same process on - by oceanbites 3 months ago
This week for #WriterWednesday on #oceanbites we are featuring Hannah Collins @hannahh_irene Hannah works with marine suspension feeding bivalves and microplastics, investigating whether ingesting microplastics causes changes to the gut microbial community or gut tissues. She hopes to keep working - by oceanbites 3 months ago
Leveling up - did you know that crabs have a larval phase? These are both porcelain crabs, but the one on the right is the earlier stage. It’s massive spine makes it both difficult to eat and quite conspicuous in - by oceanbites 3 months ago
This week for #WriterWednesday on #Oceanbites we are featuring Cierra Braga. Cierra works ultraviolet c (UVC) to discover how this light can be used to combat biofouling, or the growth of living things, on the hulls of ships. Here, you - by oceanbites 3 months ago
This week for #WriterWednesday at #Oceanbites we are featuring Elena Gadoutsis @haysailor These photos feature her “favorite marine research so far: From surveying tropical coral reefs, photographing dolphins and whales, and growing my own algae to expose it to different - by oceanbites 4 months ago
This week for #WriterWednesday on Oceanbites we are featuring Eliza Oldach. According to Ellie, “I study coastal communities, and try to understand the policies and decisions and interactions and adaptations that communities use to navigate an ever-changing world. Most of - by oceanbites 4 months ago
This week for #WriterWednesday at #Oceanbites we are featuring Jiwoon Park with a little photographic help from Ryan Tabata at the University of Hawaii. When asked about her research, Jiwoon wrote “Just like we need vitamins and minerals to stay - by oceanbites 5 months ago
This week for #WriterWednesday on #Oceanbites we are featuring @riley_henning According to Riley, ”I am interested in studying small things that make a big impact in the ocean. Right now for my master's research at the University of San Diego, - by oceanbites 5 months ago
This week for #WriterWednesday at #Oceanbites we are featuring Gabby Stedman. Gabby is interested in interested in understanding how many species of small-bodied animals there are in the deep-sea and where they live so we can better protect them from - by oceanbites 5 months ago
This week for #WriterWednesday at #Oceanbites we are featuring Shawn Wang! Shawn is “an oceanographer that studies ocean conditions of the past. I use everything from microfossils to complex computer models to understand how climate has changed in the past - by oceanbites 5 months ago
Today we are highlighting some of our awesome new authors for #WriterWednesday Today we have Daniel Speer! He says, “I am driven to investigate the interface of biology, chemistry, and physics, asking questions about how organisms or biological systems respond - by oceanbites 6 months ago
Here at Oceanbites we love long-term datasets. So much happens in the ocean that sometimes it can be hard to tell if a trend is a part of a natural cycle or actually an anomaly, but as we gather more - by oceanbites 6 months ago
Have you ever seen a lobster molt? Because lobsters have exoskeletons, every time they grow they have to climb out of their old shell, leaving them soft and vulnerable for a few days until their new shell hardens. Young, small - by oceanbites 7 months ago
A lot of zooplankton are translucent, making it much easier to hide from predators. This juvenile mantis shrimp was almost impossible to spot floating in the water, but under a dissecting scope it’s features really come into view. See the - by oceanbites 7 months ago
This is a clump of Dead Man’s Fingers, scientific name Codium fragile. It’s native to the Pacific Ocean and is invasive where I found it on the east coast of the US. It’s a bit velvety, and the coolest thing - by oceanbites 8 months ago
You’ve probably heard of jellyfish, but have you heard of salps? These gelatinous sea creatures band together to form long chains, but they can also fall apart and will wash up onshore like tiny gemstones that squish. Have you seen - by oceanbites 9 months ago
Check out what’s happening on a cool summer research cruise! On the #neslter summer transect cruise, we deployed a tow sled called the In Situ Icthyoplankton Imaging System. This can take pictures of gelatinous zooplankton (like jellyfish) that would be - by oceanbites 9 months ago
Did you know horseshoe crabs have more than just two eyes? In these juveniles you can see another set in the middle of the shell. Check out our website to learn about some awesome horseshoe crab research. #oceanbites #plankton #horseshoecrabs - by oceanbites 9 months ago
Feeling a bit flattened by the week? So are these summer flounder larvae. Fun fact: flounder larvae start out with their eyes set like normal fish, but as they grow one of their eyes migrates to meet the other and
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