Both cormorant species feed primarily on small forage fish, such as Pacific Herring (Clupea pallasii), Pacific salmon (Oncorhynchus spp), Pacific Sandlance (Ammodytes hexapterus), and gunnels (Pholidae
) (Robertson 1974; Sullivan 1998), with Double-crested Cormorants favouring schooling fish while Pelagic Cormorants prefer solitary prey concealed in rocky substrates (Ainley and others 1981).
Crows also fed upon nereid worms, small crabs, and intertidal fishes: Pholidae
(gunnels) and Stichaeidae (pricklebacks) living either in rock cracks or among sessile invertebrates (Table 5).
snailfish 2 Liparis fucensis Slipskin snailfish 1 Liparis pulchellus Showy snailfish 2 Carangidae Trachurus symmetricus Jack mackerel 15 Bathymasteridae Ronquilis jordani Northern ronquil 1 Pholidae
Infrequently sighted fishes included those in the families Pholidae
(gunnels, 6%), Cottidae (sculpins, 3%), Pleuronectidae (flatfishes, 2%), and others (including ronquils, searchers, and unidentified fishes, 5%).
Among fishes, anguilliform undulatory locomotion is used for terrestrial movement by American Eels (Anguilla rostrata; Gillis 1996, 1998), swamp eels (Synbranchidae), pricklebacks (Stichaeidae), and gunnels (Pholidae
; Sayer 2005).
The penpoint gunnel (Apodichthys flavidus) is a member of the perciform family Pholidae
. Pholids, commonly referred to as gunnels, are eel-like fishes that inhabit the rocky intertidal and subtidal regions of the northern oceans and are often associated with macroalgae, such as Fucus spp.