Seagrant

[Field work] Sand lance spawning season has started

4th time’s the charm: sampling spawning ripe sand lance on Stellwagen Bank

scituate-sunrise
On 2 Dec 2016, the sun rises over Scituate, MA, harbor and the fishing trawler that will take us to Stellwagen Bank this time.
sb-chris-trawler
On 2 Dec 2016, Chris waits for the action to start, while the trawler is leaving Scituate Harbor
sandlance embryos
Sandlance embryos, 24h after fertilization. The embryo stage in this species can be up to two months!
Early morning on 2 December 2016, we left Scituate, MA, for the forth time this year, heading towards Stellwagen Bank in search of spawning ripe Northern sand lance (Ammodytes dubius), a winter spawning forage fish of great importance to the Stellwagen Bank National Marine Sanctuary and the object of latest research efforts. While during the last three cruises in late October and November, we saw a progression of ripening in the specimens, up to now we didn’t actually find spawning ripe individuals. Today, though, things are different, and when the first sand lance appear in our beam trawl, we immediately know that today we’ve been at the right time and at the right place.
It seemed an ambitious dream not too long ago, but now we’re happy report that we’ve started an experiment on sand lance embryos in our lab. Thanks to Chris Murray, David Wiley, Mike Thompson, captain Steve and his deckhand Matt for the successful trip!
scituate-panorama-sunrise
Early morning low tide at Scituate Harbor on 2 Dec 2016. The calm is deceiving; outside of the harbor the sea is pretty rough

Check out some footage of the trip and the beam trawl operation on board of captain Steve’s fishing vessel