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pacific-hake / m2

Work on natural mortality at age from cannibalism estimated using CEATTLE
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Spatiotemporal sampling of diet data is not consistent #5

Open kellijohnson-NOAA opened 4 months ago

kellijohnson-NOAA commented 4 months ago

There are spatial records going back in time with the data from the 1980s. No data between 1989 and 2005. Only summer diet data are being collected now. Some cannibalism occurs in spring and fall. And in the data from the early, i.e., 1980s, cannibalism was observed earlier and later in the year and those samples were coming from further south than what the acoustic-trawl survey samples. If the samples are coming from a place where there are not krill, it makes sense that there would be more cannibalism. Inshore offshore there might be a relationship. Hake is very well sampled in the diet data.

Goal: Attempt to fit a spatio-temporal model to at least some of the data.

sowasser commented 4 months ago

I'm wondering if it would be interesting to just look at juv. hake / adult hake overlap for the years where we have consistent data (so for the acoustic survey; since 2005).