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Dispatches from the field

Scientists seek out the tiniest catch, larval fish in the Gulf of Alaska


lab items on the NOAA Ship Oscar Dyson
We wear these Gründens when working on deck. The blue net in back is a CalVET sampler, a pair of nets equipped with very fine mesh to collect tiny marine organisms.   Photo: Ali Deary, NOAA Fisheries

Larval Fish
larval sculpin
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Preparing for a research cruise

May 18, 2017 -- Any successful research cruise starts days, even months, before the ship leaves port. Months before our trip, we loaded gear and equipment onto the NOAA ship Oscar Dyson, in Seattle. Once we boarded the vessel in Dutch Harbor, Alaska the first step was to set up the lab. We also took inventory of our supplies, checked our nets to make sure they are firmly attached to the frame, and patched any holes. These steps ensure that when we leave the dock at Dutch Harbor, we are ready to collect quality data.

Once lab setup was completed, we made a final run to the store for any forgotten items. It is extremely important to make sure we have all of the necessary supplies because at sea, we cannot stop sampling to pop over to the neighborhood supermarket. Dutch Harbor is small with fewer than 4,600 people but it has quite a few options to buy missing supplies. On the way, we saw amazing wildlife and gorgeous scenery.


Dutch Harbor, Alaska
Dutch Harbor, Alaska   Photo: Ali Deary, NOAA Fisheries


I am giving you all these details because in many ways, planning is one of the most important aspects of any research cruise. Gear maintenance and preparing the lab are extremely important tasks because it enables us to collect quality data efficiently. Being disorganized at sea can also be a safety concern. Scientists frantically trying to find tools are distracted and more likely to get hurt.

The data we collect to estimate the number of young fish in the western Gulf of Alaska has been gathered for more than 40 years. The information we gain during this trip helps us to understand the factors that affect the number of fish that will survive and grow over time and space.

Post by: Ali Deary

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