Did you know that common thresher sharks (Alopius vulpinus) from the US Pacific Coast have a vast diet - including creatures from more than 20 taxa (Preti et al., 2001)!
So, what do they eat? Well, from what Preti and colleagues could tell, there was a difference in the most common species of prey found in the stomachs of the sharks from the north and south populations! In the north population, the most important species seemed to the Pacific hake (Merluccius productus). Meanwhile in the south population, the most important species seemed to be the northern anchovy (Engraulis mordax). Interestingly, there were no northern anchovies identified in the stomachs of the individuals in the north population!
Other identifiable species? Well, it looks like these thresher sharks also snack on Pacific mackerel (Scomberjaponicus) and Pacific sardine (Savdinops sagax). They also seem to like invertebrates, including squid and pelagic red crab!
Photo by @luminousdeep
#didyouknow The arrow crab is nocturnal and territorial. It eats small feather duster worms and other coral reef invertebrates. .
During mating, the male places a spermatophore on the female, which she uses to fertilise her eggs. These fertilised eggs are then carried on the female's pleopods until they are ready to hatch into zoea larvae.
Repost the great shot of @erwintlim .
Un piccolo paradiso, casa per i prossimi mesi.
Minuscola isola nel cuore del Visayan Sea, Malapascua è meta di backpackers che vengono a immergersi con lo squalo volpe. 28 diving center, niente asfalto, ma troppissime cartacce e plastiche in terra.
A small paradise, home for the next months.
Tiny island in the heart of the Visayan Sea, Malapascua is chosen by backpackers to come and dive with the thresher shark. 28 diving centers, no tarmac, but too many paper and plastic waste scattered everywhere.