Growth of anglerfish (Lophius piscatorius and L. budegassa) in Atlantic Iberian waters

Movements and growth of monkfish Lophius piscatorius tagged at the Shetland Islands, northeastern Atlantic

“…The fact that the von Bertalanffy parameter L ∞ determined from the growth data is the same as that used by the WGNSDS is significant. The growth curve obtained from the tagging data is closer to those used by the WGNSDS than to those given by Landa et al (2001). One contributing cause could be that geographical differences in growth rate exist.…”

“…These parameters were compared to available parameters for the species: those given by the ICES Working Group for the Assessment of Northern Shelf Demersal Stocks (WGNSDS) (Anon., 2004) and those given by Landa et al (2001) for the southern stock based on analysis of calcified parts. To compare growth curves mean lengths-at-ages were determined for each of the curves from ages 0-15 years.…”

“…In addition published lengths-at-age based on illicia have generally been from the southern stock (e.g. Duarte et al, 1997;Landa et al, 2001), whereas those for the northern stock have been based on otoliths (e.g. Afonso-Dias, 1997;Laurenson, 2003).…”

“…The von Bertalanffy growth parameters used in assessments by the WGNSDS are: L ∞ = 140 cm, K = 0.117 year −1 and t 0 = 1.12 for females and L ∞ = 110.5 cm, K = 0.154 year −1 and t 0 = 0.91 for males (Anon., 2004). Parameters given by Landa et al (2001) for the southern stock are: L ∞ = 163.5 cm, K = 0.063 year −1 and t 0 = −0.44 for females and L ∞ = 110.5 cm, K = 0.108 year −1 and t 0 = 0.25 for males. L ∞ used by the WGNSDS had been constrained to be equal to those given by Landa et al (1998) due to problems fitting the curve.…”

On the biology and growth of the anglerfish Lophius budegassa Spinola, 1807 in the Spanish Mediterranean: a preliminary approach

“…Although they are not a target species in the fisheries, they are of interest due to their commercial value, yet understanding of the biology and distribution is scarce. In European Atlantic waters, studies include those of growth (Dupouy et al, 1986;Peronnet et al, 1992;Duarte et al, 1997;Landa et al, 1998Landa et al, , 2001aLanda et al, , 2001bQuincoces et al, 1998), reproduction (Azevedo, 1996a;Duarte et al, 1998;Quincoces et al, 1998), feeding and trophic chains (Olaso et al, 1982;Crozier, 1985;Pereda and Olaso, 1990;Azevedo, 1996b), as well as the geographic and bathymetric distribution (Caruso, 1985;Vasconcelos et al, 1986;Azevedo and Pereda, 1994;Azevedo, 1995). In the Mediterranean, the understanding of the biology of the species is even more limited since there are only a few existing studies (Tsimenidis and Ondrias, 1980;Campillo et al, 1989and Bertrand, 1991, summarized in Quesada, 1991García-Rodríguez and Esteban, 1998;Ungaro et al, 2002) that refer to some aspects of their biology and fishing.…”