title: [Annual growth variations of the goby Lesueurigobius friesii off Scotland based on Gibson and Ezzi data].
abstract: Samples of Lesueurigobius friesii gained and investigated by Gibson and Ezzi (1978) off the Scottish west coast comprising 5 age groups in monthly intervals show impressive seasonal variations calling for adequate mathematical treatment. For this purpose a proposal of the author (Sager 1982, 1983) as already realized for the growth behaviour of Nyctiphanes couchii with the Bertalanffy function is transferred to the Gompertz modifying this function to annual changes. The application of nonlinear regressions yields appropriate results and allows for the presentation of the modified increase function.
mesh_terms: D000818:Animals; D005399:Fishes / Q000254:growth & development*; D008433:Mathematics; D012606:Scotland
vernacular_title: Jährliche Wachstumsvariationen der Grundel Lesueurigobius friesii vor Schottland nach Daten von Gibson und Ezzi (1978).