July 2017 ChesMMAP Water Quality Maps

See the side by side comparisons of the Chesapeake Bay bottom dissolved oxygen, water temperature, and salinity.  During the July cruise, Chief Scientist Dustin Gregg noted higher catch productivity for a number of species along the Virginia Eastern Shore of the Bay.  Check out the dissolved oxygen map to see why this was likely the case.  An area of higher oxygen where the higher catches were noted.

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July 2017 ChesMMAP Catch Maps

Here is your 2017 ChesMMAP field season update! The July cruise is complete with a lot to report, including unusually high catch numbers and diversity for Chesapeake Bay mid-summer. We’ve seen catch numbers for our Sciaenids gradually increasing recently, and Atlantic croaker, spot, kingfish, and weakfish catches continue to show improvement. Also in abundance were harvestfish, Northern searobins, and a high diversity of stingrays. Some juvenile sandbar sharks even made an appearance. According to Chief Scientist, Dustin Gregg, higher catches and diversity were seen particularly along the Virginia Eastern Shore side of the Bay (spadefish, Northern puffer, striped burrfish, bluntnose stingray).

Herrings and menhaden displayed typical low summer catches, but white perch catches were also limited to just a couple of stations as well.

Habitat such as dead man’s fingers (a bryozoan), hydroids, redbeard sponge, and sea squirts were widespread in lower bay catches.

Stay tuned for July ChesMMAP water quality updates and results of the truncated spring NEAMAP cruise.

Scientific Crew: J. Eckert, D. Gregg (Chief), R. Hailey, Alex Johnson, Gregg Mears, Taylor Moore, Cameron Ward.

Vessel Crew: J. Olney Jr. (Captain), K. Mayer (Mate)

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New Web Map Apps

New for 2017, our catch maps in web app format!

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NEAMAP

We will continue to provide cruise catch maps and water quality maps after each cruise, but now our catch data for selected species are summarized by cruise and by year.  The ChesMMAP data are pooled across all years and reported by cruise: March, May, July, September, and November as well as pooled across all cruises and reported by year, from 2002 to 2016.  The NEAMAP data are likewise reported by year, for both Spring and Fall from 2007 to 2016.  For the NEAMAP catch summaries by cruise, the apps incorporate a swipe tool to quickly compare Fall and Spring in the same map.

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ChesMMAP web app summarizing yearly catch data

 

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NEAMAP web app summarizing yearly catch data

 

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NEAMAP catch web app with swipe tool comparing Spring and Fall