Gavin F. Hanke's research while affiliated with Royal BC Museum and other places

... Scopelengys tristis is a meso-to batypelagic species with a wide distribution in the tropical and temperate waters of the Atlantic, Pacific and Indian oceans (Butler & Ahlstrom, 1976;Milkova et al., 2016;Nafpaktitis, 1977;Nakabo, 2002;Romero Camarena, 2009;Sutton et al., 2020). The species was reported by (Figures 1h and 4b). ...

... The diet of triggerfish extends beyond hard-shelled prey because they are opportunistic broad generalists, consuming almost any available food source from plankton, algae, eggs and other fish to the faeces of other organisms (Randall 1967;Sazima et al. 2003;Morais et al. 2017). This high trophic plasticity of triggerfish is of special importance for those species that can pullulate (Kavanagh and Olney 2006;Garcia et al. 2017;Gerlotto 2017) and extend their area of distribution to temperate waters (Quigley et al. 1993;Tuponogov 2015;Brooks et al. 2016). ...

... Later, it was shown that all ancient bony fish have fins with several cartilaginous or bony rays at the base and often contain fin spines (Zhu & Yu, 2009). Hanke and Wilson note that many Early Devonian gnathostomes had "an array of pectoral, prethoracic, ventral, and preventral fins," all of which were spinebearing (Hanke & Wilson, 2005). ...

... Unusual specimens collected on the eastern Bering Sea slope have resulted in the descriptions of new species of fishes (Stevenson and Anderson 2005;Stevenson and Orr 2006;Baldwin and Orr 2010;Orr 2012) and the identification of others as new to Alaska or to the Bering Sea or both (Hoff 2002;Orr and Stevenson 2005;Orr and others 2005;Kenaley and Orr 2006;Maslenikov and others 2013). Specimens collected in recent surveys of the continental slope of British Columbia (Hanke and others 2015) have also resulted in additions to the Canadian ichthyofauna ( Hanke and Roias 2012;others 2014, 2015; Milkova and others 2016; King and others in press). Among these unusual specimens, an unidentified juvenile skate of the genus Bathyraja was collected in the eastern Bering Sea and later identified as B. spinosissima. ...

... Five have been caught off the US coast north of Cape Hatteras, while MCZ 49876 was taken south-east of Grand Bank in 1964 and another specimen was recorded on Flemish Cap in 2006 (Vázquez et al. 2013). The only known eastern Canadian specimen was ARC 704914, caught off Baffin Island in 1986, but three have been taken from Canadian Pacific waters, west of Vancouver Island (Weil et al. 2015). ...

... Because of their robust dentition, they have the capability to crush hard food and inflict severe bites (Cagauan, 2008). They feed in multiple "bite events", with each event containing a number of individual bites, which is similar to the feeding behavior observed in true piranhas (Hanke and McNall, 2006). In terms of space utilization, P. brachypomus is a large-bodied fish that occupies both surface and mid-water depths in aquatic habitats (Wiecaszek et al., 2022). ...

... Pucapampella and all taxa more closely related to the chondrichthyan crown are excluded from the acanthodian division. Brochoadmones and Lupopsyrus are retained, even though they fall outside the acanthodian grade (sensu Dearden et al. 2019), as they were traditionally described as acanthodians and possess an acanthodian-like body plan (Hanke and Wilson 2006;Hanke and Davis 2012). ...

... Spectrunculus crassus Uiblein et al., 2008;Hanke et al., 2015. Holotype.-MNHN ...

... Circumglobal at tropical and temperate latitudes. Western Atlantic, from Canada to Venezuela and Guyana; eastern Atlantic, off northwestern Africa, Azores Islands and the Gulf of Guinea (Sulak 1977(Sulak , 1990; Indian Ocean, from Saya-de-Malaya Bank and the East Indian Range (Filatova 1985), and eastern, central and northern Pacific Ocean and waters off of Chile (Froese & Sampang 2004;Kamikawa & Stevenson 2010;Hanke et al. 2014). ...

... Currently, more than 72 vertebrate species are known from the MOTH locality, approximately half of which have yet to be formally described; the fossil assemblage includes heterostracans, thelodonts, osteostracans, placoderms, chondrichthyans, and acanthodians, as well as enigmatic taxa that are not readily assignable to a specific group. Many of these taxa are represented by articulated specimens, some of which are complete or nearly complete (Wilson et al., 2000 (Fig. 2). Many ischnacanthiform acanthodians from MOTH are represented not only by isolated dentigerous jaw bones as is the norm, but also by articulated upper and lower dentigerous jaw bones and their associated cartilages, offering rare insight into the occlusion and mechanics of their jaws. ...