乐生活Lutjanus fulvus (Forster, 1801)
Yellow-footed snapper is a beautiful, common and widely distributed snapper, and its habitat is quite diverse. Young fish can enter the lower reaches of rivers. Adult fish’s habitat also includes rocks below 100 meters deep. Yellow-footed snapper is widely distributed in the tropical and subtropical waters of the Indo-Pacific Ocean, but its natural distribution does not include the Hawaiian Islands, but is now regarded as a local invasive species.
In 1956, Hawaii’s Waii Division of Fish and Game carried out a fisheries improvement program. They introduced 12 species of snappers and groupers from Moorea, French Polynesia, for field trials in Honolulu. One of them was the yellow-footed snapper, which released 239. Among the wild species, only the yellow-footed snapper and two other species (four-line snapper * & amp; spotted perch) successfully landed and rooted and spread to the nearby main Hawaiian islands. Although the invasion of the yellow-footed snapper is not very successful and its distribution and population are limited, the combined impact of these three invasive species on the unique ecosystem of Hawaii can not be ignored, especially on some organisms with similar ecological habitats to the above species. Taking the four-line snapper as an example, it spreads and breeds rapidly in the Hawaiian Islands in a short period of time, replacing many valuable deep-water food fish such as Pristipomoides spp., which reduces the catch of purple fish relatively, but the market acceptance of the four-line snapper is very low, so the fishing plan failed.
FIGURE 1. ADULT FISHES CATCHED IN SUAO, TAIWAN
Figure 2. Adult fish seen snorkeling
Figure 3. Adult fish captured by NOAA at 107 meters underwater on an island in Hawaii
