Bathypterois
2 species
Bathypterois is a genus of deepsea tripod fishes. They are a diverse genus that belong to the greater family Ipnopidae and order Aulopiformes. They are distinguished by having two elongated pelvic fins and an elongated caudal fin, which allow them to move and stand on the ocean floor, much like a tripod, hence the common name. Bathypterois are distributed worldwide with some particular species of the genus having specialized environmental niches, such as lower dissolved oxygen concentrations. Bathypterois have a reduced eye size, highly specified extended fins, and a mouth adapted to filter feeding. They are filter feeders whose main food source is benthopelagic planktonic calanoid copepods, but some variation is seen with maturity in secondary food sources. Bathypterois use their three elongated fins for a wide range of motion from landing to standing on the ocean floor to catching prey, for which these fins serve as specialized perceptory organs. Bathypterois have both male and female gonads at once making, them simultaneous hermaphrodites, whose gonads go through five stages of development following seasonal autumn spawning.
The niches the different species within Bathypterois live in vary and can be as deep as 6,000 m in and in both temperate or tropical oceans. Some species, such as Bathypterois ventralis, are known to prefer warmer waters and lower dissolved oxygen concentrations/oxygen deficient zones, which they are well adapted for. Certain species, such as Bathypterois filiferus are endemic to the southern Pacific and northern Indian oceans, while others such as Bathypterois longipes, are endemic to the mid/southern Atlantic. Some species prefer the continental slope while others prefer the depth of the abyssopelagic. However, in general, Bathypterois has a very broad distribution with much overlap between environments since they are so well adapted to survival in a variety of niches.
Bathypterois is a genus of deepsea tripod fishes. They are a diverse genus that belong to the greater family Ipnopidae and order Aulopiformes. They are distinguished by having two elongated pelvic fins and an elongated caudal fin, which allow them to move and stand on the ocean floor, much like a tripod, hence the common name. Bathypterois are distributed worldwide with some particular species of the genus having specialized environmental niches, such as lower dissolved oxygen concentrations. Bathypterois have a reduced eye size, highly specified extended fins, and a mouth adapted to filter feeding. They are filter feeders whose main food source is benthopelagic planktonic calanoid copepods, but some variation is seen with maturity in secondary food sources. Bathypterois use their three elongated fins for a wide range of motion from landing to standing on the ocean floor to catching prey, for which these fins serve as specialized perceptory organs. Bathypterois have both male and female gonads at once making, them simultaneous hermaphrodites, whose gonads go through five stages of development following seasonal autumn spawning.
The niches the different species within Bathypterois live in vary and can be as deep as 6,000 m in and in both temperate or tropical oceans. Some species, such as Bathypterois ventralis, are known to prefer warmer waters and lower dissolved oxygen concentrations/oxygen deficient zones, which they are well adapted for. Certain species, such as Bathypterois filiferus are endemic to the southern Pacific and northern Indian oceans, while others such as Bathypterois longipes, are endemic to the mid/southern Atlantic. Some species prefer the continental slope while others prefer the depth of the abyssopelagic. However, in general, Bathypterois has a very broad distribution with much overlap between environments since they are so well adapted to survival in a variety of niches.
