Is Fish Farming Bad & Should It Be Reevaluated? Fish farming is already an activity with a mixed image, while many people love it because it is economically successful, others dislike the dislocation of natural systems that this allows. Especially disliked are ocean pens where the fish are kept in large cages of nets in … Read more
Checklist of Hornbills of the World Common Name Scientific Name Distribution Habitat Weight of Male in Grams % animal content in Diet Max No. Eggs Northern Ground Hornbill Bucorvus abyssinicus Central Africa Savanna 4000 100 2 Southern Ground Hornbill Bucorvus leadbeateri Southern Africa Savanna 4191 85 3 Austen’s Brown Hornbill Anorrhinus austeri Mainland … Read more
There’s no denying that fish breathe differently compared to other animals, especially ground-dwelling creatures. But can a fish drown? Fish can suffocate underwater, but they cannot drown. Lack of oxygen, water contamination, as well as their gills being unable to do their job are the causes of a fish dying in water rather than drowning … Read more
Family Achiropsettidae – Southern flounders Order: Pleuronectiformes Class: Actinopterygii (ray-finned fishes) No. of Genera: 3 No. of Species: 4 Environment: Fresh: No Brackish: No Marine: Yes Aquarium: none First Fossil Record: Ref: Remark: Antarctic and sub-Antarctic waters. Body greatly compressed; both eyes on left side of head. Dorsal and anal fins separate from caudal fin; … Read more
Fishes of this family are characterized by very elongate (pike-like) bodies covered with relatively small scales. All teeth are conical and strong canines are present on the premaxilla, anterior part of the maxilla and the dentary. Small conical teeth are present on the ectopterygoid and minute conical teeth have been detected on the mesopterygoid of … Read more
The Abyssocottidae is a small family of 20 species, in six genera. They are commonly called Abyssocottids or Deep-sea Sculpins, which is confusing because they don’t actually live in a sea, or Deep-water. However the name Deep-water Sculpins is also used for some species from other related families, so be careful. They are mostly bottom … Read more
First Fossil Record: lower Tertiary, lower Eocene Ref: Berg, L.S..1958 The Achiridae are saltwater and freshwater flatfishes with the eyes on the right side, body rounded or ovate in lateral view in most species, including fins, and elongate in Achiropsis nattereri, Apionichthys dumerili, and one undescribed species referred to Apionichthys. The eyed-side lower lip has … Read more
The Acanthuridae is a medium sized family of tropical fish, with 84 species divided between six genera: They range in length from just under 12 cm, for the Dwarf Surgeonfish (Ctenochaetus flavicauda), to 100 cm for the Whitemargin Unicornfish (Naso annulatus). They have very small ctenoid scales and their eyes are placed high up on … Read more
The fish faunas of the world have been monitored for many years now. While there is much we do not know – especially about the deep and open oceans – one thing we do know, is that the fish populations of all our waters are undergoing a period of rapid change. In the seas and … Read more
A definitive courtship is rare in fish. In those fish that spawn in large groups, courtship is often minimal or practically non-existent. A female will indicate her readiness to lay and this will be noticed by one or more males – who will attend by releasing their sperm (milt) as she releases her eggs. In … Read more