ABSTRACT
The first record of Ruvettus pretiosus Cocco, 1833 for the Colombian continental Caribbean is presented. The specimen was collected at Los Cocos, department of Magdalena (11° 16' 33, 84'' N 73° 53' 33, 01'' W), using a demersal longline gear placed at 100 m depth. Biometrics, diagnosis and comments regarding its distribution, ecology and biology are included in the description. This new record expands the distribution of the species in the Caribbean Sea and increases the reported number of gempylids for Colombia to five.
Se presenta el primer registro de Ruvettus pretiosus Cocco, 1833, para el Caribe colombiano continental. El especimen fue colectado en Los Cocos, Departamento de Magdalena, (11° 16' 33, 84'' N 73° 53' 33, 01'' W), usando un palangre sumergible colocado a 100 m de profundidad. En la descripción se incluye biometría, diagnóstico y comentarios sobre su distribución, ecología y biología. Este nuevo registro amplía la distribución de la especie en el Mar Caribe e incrementa a cinco el número de gempílidos reportados en Colombia.
É apresentado o primeiro registro de Ruvettuspretiosus Cocco, 1833, para o Caribe Colombiano continental. O espécime foi capturado na vereda Los Cocos, Departamento de Magdalena (11° 16' 33, 84'' N 73° 53' 33, 01'' W), utilizando palangres horizontais demersales a uma profundidade de 100 m. Estao incluídos neste manuscrito dados biométricos, diagnóstico das espécies e comentários sobre a sua distribuiclo, ecología e biología. Com este novo reporte a distribuiclo das espécies no Mar do Caribe se expande, aumentando para cinco o números de espécies da família Gemphelidae na Colombia.
ABSTRACT
Keriorrhoea is the involuntarily passing of orange oil per rectum. One of us (PMB) had the misfortune to experience this symptom, together with considerable gastrointestinal disturbances for a prolonged period of time after consumption of a deep sea fish, orange roughy, which is rich in liquid wax esters (LWEs). This paper presents a summary of available evidence concerned with the physiology and pathology of ingestion of LWEs, which can enter the human diet in substantial amounts from consumption of several species of deep-sea fish. LWEs are poorly digested and absorbed by the human body. They generally cause keriorrhoea when ingested deliberately or accidentally. Jojoba oil, which is a plant LWE, together with certain nutritional products (e.g. olestra) and medical (e.g. Orlistat) which are not LWEs may mimic the effects of LWEs, and cause similar gastrointestinal disturbances. This paper discusses the potential effects of LWEs as components of gastrointestinal micelles, and predicts that the orange oil which is leaked from a bout of keriorrhoea may contain considerable volumes of triacylglycerols (TAGs).