catton: one of the t things that the watetermen's alliance i is g to help progress our goals is to enengage the a abalone diviversd otheher recreatitional divererse area that are passionate about helpining to bring back the kekp forerest, to target the purple urchins inin their recreationall harvest.t. [overlrlapping chahatter] russo: in 2013, there was an abnormal spawning event with the purple urchin in sonoma, where they spawned in deep water and it washed ashore, basically the entire sonoma coast. so what happened then is you have the kelp trying to come back in the cold-water years, but in an abnormally large population of purple urchin. so every time the kelp would pop up, it was dog-piled by urchin, so there's an urgency t to getting this doe sooner rather than l later. catton: so we're here to estimate the number, the tototal numbers of urcrchins that are being caught. we're taking a look at the sizes of those urchins and looking athahat their condition is, what thehe'e been e eating. man: i t think the big thihing s that t they--y k know, when thte kelp comes back, whehen the kelp