Species composition of the genus Scombrops (Teleostei, Scombropidae) in the waters around the Japanese Archipelago: detection of a cryptic species.

Current literature states that family Scombropidae consists of a single genus Scombrops comprising three species worldwide, with two of them, Scombrops boops and Scombrops gilberti, distributed in the waters around the Japanese Archipelago. Although these two scombropids are commercially important species, little is known about the ecology of these fishes. It is difficult to discriminate between these two species based on external characteristics because of their morphological similarity.

Seasonal Changes in the Tetrodotoxin Content of the Flatworm Planocera multitentaculata.

Tetrodotoxin (TTX) is a potent neurotoxin that acts specifically on voltage-gated sodium channels on excitable membranes of muscle and nerve tissues. The biosynthetic process for TTX is unclear, although marine bacteria are generally thought to be the primary producers. The marine flatworm is a known TTX-bearing organism, and is suspected to be a TTX supplier to pufferfish.

Phylogenetic position of Scombropidae within teleostei: the complete mitochondrial genome of the gnomefish, Scombrops gilberti.

The complete mitochondrial genome of the Japanese gnomefish, Scombrops gilberti, was determined using a PCR-based method. The total length of mitochondrial DNA (mtDNA) is 16 518 bp, which includes 13 protein-coding genes, two ribosomal RNA (rRNA) genes, 22 transfer RNA (tRNA) genes, and one control region. The mitochondrial gene arrangement of S.

The complete mitochondrial genome of the gnomefish Scombrops boops (Teleostei, Perciformes, Scombropidae) from the Pacific Ocean off the Japanese Islands.

The complete mitochondrial genome of the gnomefish Scombrops boops was determined by a PCR-based method. The total length of mitochondrial DNA (mtDNA) was 16,517 bp, including 13 protein-coding genes, two ribosomal RNA genes, 22 transfer RNA genes and one control region. The mitochondrial gene arrangement of the gnomefish mtDNA was identical to those of typical teleosts.

Variations in bile tolerance among Lactococcus lactis strains derived from different sources.

Lactococcus lactis subsp. lactis has been isolated from the intestines of marine fish and is a candidate probiotic for aquaculture. In order to use the bacterium as a probiotic, properties such as bile tolerance need to be assessed.