The demands of marine organisms for the aquarium trade are remain high and seems continue to increase. Consequently, many of marine organisms has been spread out from its natural habitat as in the case of endemic Banggai cardinalfish, (Pterapogon kauderni). That has invaded "new" habitat since it being trade in 1995. In recent years, a small populations of P. kauderni is known to be exist in a narrow bay near the Gilimanuk harbor, Bali. An underwater visual fish census survey was conducted on June 2018 to estimate the habitat types and densities of P. kauderni. Additionally, 23 specimens of P. kauderni were collected randomly in order to assess biological parameters such as the length-weight relationship. We successfully recorded 30 groups of P. kauderni that inhabit a shallow areas with a depth range between 0.5m to 2m. Of these, more than 90% of the groups were found to be associated with sea urchin (Diadema sp.) while the rest were found to live together with branching coral (Acropora sp.) and branching sponge (Ptylocaulis sp.). Total number of fish observed during the survey were 381 individuals. The fish density is 0.76 individu.m-2. Length-weight relationship showed that P. kauderni exhibit is negative allometry (b<3) which mean that the increase in length is faster than the weight gain. Interestingly, from the 23 specimens collected, none of these were sexually mature (SL<41 mm) which may indicated that the population of P. kauderni in Bali are under serious threats of exploitation.

Pempheris flavicycla is described as a new species of sweeper (Perciformes: Pempheridae) from the Indian Ocean, including the Red Sea. It has a bright yellow ring around the pupil of the eye, a black outer border on the anal and caudal fins, a black spot at the base of the pectoral fins, 38–44 anal soft rays, 54–61 lateral-line scales, and 29–33 gill rakers. It is found in clear-water, coral-reef areas not exposed to heavy seas, and usually in less than 15 m. Two subspecies are recognized: Pempheris flavicycla flavicycla from Oman, Tanzania (type locality Mafia Island), Kenya (Wasini Island), Seychelles, Republic of Maldives, Lakshadweep, Sri Lanka, and islands of the Andaman Sea; and Pempheris flavicycla marisrubri from the Red Sea and the Gulf of Tadjoura off Djibouti. The Red Sea subspecies differs in having a larger eye, longer pectoral fins, more ctenoid scales, the posterior nostril largest, and modally one fewer pectoral-fin rays. Both subspecies have usually been misidentifi...

The fishery data for any coast is essential, due to data the ocean&#39;s capacity to provide. Estimates based on fisheries catch data. Impacts of fishing have fallen particularly hard on slow-growing predators. Lionfish appear graceful and attractive to most observers and such a fish not having predators of their own and it can prey on ecologically important native regions are causing dramatic reduction in diversity of species. Because, the lionfish are voracious hunters , the main function it will take at the few minutes more than 49 species of prey in the native regions. After harvesting the fisherman don&#39;t consider in lionfish for food and other uses, simply collect and throw outside, since there is no clear cut information, use of lionfish. The commercial fisheries may suffer losses as lionfish on economically important ones and vie with those species for food. Swimmers, divers and fishermen are also at risk of being stung by the venomous lionfish. In the present study were ...