36 research outputs found

    Update on New Species and Record of Fishes in the Coral Triangle Region for the Last 10 Years (2008-2019)

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    Updated data is an essential requirement for carrying out research, planning, and policy briefs. The Coral reef triangle region is one of the areas with the highest diversity of marine biota and the discovery of new species in this area are increasing every year, much of this information is already available. However, most of the data is not available per region and is still scattered. This study aims to create a checklist and assessment of new species and a new record of fishes from this region over the last ten years based on several aspects, including species composition, pattern of distribution, endemicity, and depth using every source of the report and secondary literature data. The current new species and a new record of fish in the last decades combined consists of 360 species (268 new species and 92 new records). The most speciose group of family dominated by Gobiidae (93), followed by Labridae, Pomacentridae and Serranidae (18), Apogonidae (17), Dasyatidae (15), and the rest were ranged from 1-9 species per family. More than half of new species and new records are found in Indonesia, followed by the Philippines, Papua New Guinea, and Solomon Island. The result shows that cryptobenthic Families especially Gobiidae from genus Trimma and eviota are dominated the trend of new species and new record discovery and it is expected to rise over time while there will also be an emergence of some possibly new endemic species from major and rare families from the eastern part of Indonesia (West Papua and Papua New Guinea). Thus, the eastern part of Indonesia (Papua, Maluku, Aru Sea, and Papua New Guinea) and the northern part of Indonesia (North Sulawesi and Philippine) are suitable for exploration for marine biodiversity discovery research in the future

    KEANEKARAGAMAN IKAN DI DAERAHPADANGLAMUN KEPULAUANBANGGAI, SULAWESITENGAH

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    Padang lamun merupakan salah satu ekosistem penting bagi kehidupan ikan. Salah satu peranannya adalah sebagai penyedia makanan dan perlindungan dari predator. Kompleksitas kondisi padang lamun dapat mempengaruhi jumlah jenis ikan yang berada di sekitarnya. Wilayah perairan Kepulauan Banggai merupakan salah satu perairan subur yang memiliki ekosistem padang lamun dengan kondisi relatif masih baik. Penelitian ini bertujuan untuk mengamati keanekaragaman ikan padang lamun di perairan Kepulauan Banggai. Jaring pantai (beach seine) digunakan untuk memperoleh sampel ikan pada tujuh lokasi pengamatan selama kurun waktu pertengahan bulan Juni hingga Juli 2011. Keanekaragaman ikan dinilai berdasarkan pada komposisi jenis ikan dan beberapa indeks diversitas. Hasil penelitian ini menunjukkan jumlah total ikan yang dikoleksi yaitu 1.714 individu, terdiri dari 37 famili dan 90 spesies. Jumlah tangkapan ikan tertinggi berada pada lokasi Pulau Kakadan dan Pulau Kembangan dengan jumlah tangkapan masing-masing 41 dan 33 spesies. Sebaliknya Pulau-pulau Bandang merupakan lokasi dengan jumlah hasil tangkapan terendah yaitu 11 spesies dengan total keseluruhan hanya 20 individu. Jenis ikan dari famili Athrinidae dan Clupeidae mendominasi hasil tangkapan di Pulau Kakadan dan Pulau Kembangan sekaligus merupakan jumlah tertinggi diantara semua jenis ikan dari seluruh lokasi pengamatan. Secara umum komunitas ikan berada pada kondisi yang stabil dengan tidak adanya jenis yang mendominasi. Nilai indeks keanekaragaman (H’) keseluruhan lokasi pengamatan menunjukkan kekayaan spesies berada pada kondisi sedang (2,21–2,78). Sedangkan nilai keseragaman (e), menunjukkan sebagian besar lokasi pengamatan berada pada kondisi yang labil (0,50< e d”0,75). Kondisi demikian mengisyaratkan bahwa perlu adanya upaya perlindungan ekosistem lamun dan sekitarnya agar keanekaragaman ikan tetap terjaga. Seagrass is one of important ecosystems for fish life. One of its roles is as feeding ground and protection area from predators. The complexity of seagrass can influence the number of surrounding fish species. The Banggai Islands waters is one of rich area that has seagrass ecosystems in a relatively good condition. This research aims to examine the diversity of fish in seagrass beds in that area. Beach seine was used to catch sample of fish from seven stations spanning the middle of June until July 2011. The diversity of fish was determined based on the composition and some of diversity index. The result showed that the total numbers of collecting fish were 1.714 individuals, consisting of 37 family and 90 species. The highest of total number was found in Kakadan and Kembangan Island, were 41 and 33 species respectively. On the other hand, Bandang Islands had the lowest catch of 11 species (20 individuals). The family of Athrinidae dan Clupeidae dominated the total number of catch in Kakadan dan Kembangan Island and the highest among all species from whole stations. Generally, the fish community was at a steady level in which there was no domination. Biodiversity index (H’) of all stations showed the richness of species was at moderate level (2,21-2,78). Whereas the evenness index showed that almost all of stations were at unsteady condition (0,50< e d”0,75). These conditions imply that it needs a protection effort toward seagrass ecosystem in order to maintenance fish diversity

    The Leiognathus aureus complex (Perciformes: Leiognathidae) with the description of a new species

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    Taxonomic analysis of a group of morphologically similar ponyfishes (Perciformes: Leiognathidae) establishes a complex comprising three valid species: Leiognathus aureus Abe and Haneda, 1972, widely distributed in the western Pacific Ocean (Taiwan, Philippines, Thailand, Singapore, Indonesia, and northern Australia); L. hataii Abe and Haneda, 1972, currently known only from Ambon, Indonesia; and L. panayensis sp. nov. Kimura and Dunlap, currently known only from Panay Island, the Philippines. The L. aureus complex can be defined by the following combination of characters: mouth protruding forward, not downward; small but sharp conical teeth uniserially on jaws; a black line between lower margin of eye and lower jaw articulation; and lateral line incomplete, ending below posterior part of dorsal fin base or on anterior caudal peduncle. Leiognathus hataii differs from both L. aureus and L. panayensis in having a large dark blotch below the spinous dorsal fin base and fewer counts of scales (lateral line scales 50–58 vs. 64–85 in the latter two species; scales above lateral line 7–10 vs. 12–18; scales below lateral line 22–26 vs. 30–41). Leiognathus panayensis is distinguished from L. aureus in having a deeper body (41–51% SL vs. 35–45% SL in the latter), long posterior limb of maxilla (21–25% HL vs. 15–23% HL), wholly scaled belly (vs. naked along preanal median keel), and a dark blotch on nape (vs. absent).Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/41594/1/10228_2003_Article_160.pd

    The Leiognathus splendens complex (Perciformes: Leiognathidae) with the description of a new species, Leiognathus kupanensis Kimura and Peristiwady

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    Taxonomic analysis of a group of morphologically similar ponyfishes (Perciformes: Leiognathidae) establishes the Leiognathus splendens complex comprising four valid species: L. jonesi James, 1971, widely distributed in the Indo-West Pacific, from Mauritius to Papua New Guinea, north to Hainan I. (China), and south to Brisbane, Australia; L. kupanensis sp. nov., currently known only from Kupang, Timor, Indonesia; L. rapsoni Munro, 1964, currently known only from India, Indonesia, and Papua New Guinea, and L. splendens Cuvier, 1829, widely distributed in the eastern Indian and western Pacific oceans, from India to Papua New Guinea, and from southern Japan to northern Australia. The L. splendens complex can be defined by the following combination of characters: body depth 42–60% of standard length; mouth protruding downward; slender, minute teeth uniserially on jaws; lower margin of orbit above the horizontal through the gape when mouth closed; breast almost completely scaled; lateral line complete, and a dark blotch on top of spinous dorsal fin. Diagnostic characters of the members are as follows: L. jonesi —anterior dorsolateral body surface with a semicircular naked area on nape, and a paler dark blotch on spinous dorsal fin; L. kupanensis —anterior dorsolateral body surface widely naked; L. rapsoni —cheek scaled; L. splendens —anterior dorsolateral body surface completely scaled and a jet black blotch on spinous dorsal fin.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/41595/1/10228_2005_Article_283.pd

    FIRST RECORD OF EIGHTBAR GROUPER, Epinephelus octofasctafus GRIFFIN, 1926 (PERCIFORMES: SERRANIDAE) FROM INDONESIA

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    Three specimens were collected by market collection at Winenet and Girian Market, Bitung, North Sulawesi, lndonesia on January until March 2008

    Historical review of ichthyological research in Indonesia

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    The history of ichthyological research in Indonesian waters falls into four major periods: pre-colonial (from earliest recorded history until the end of the 16th century), colonial (from the beginning of the 17th century to Indonesian independence in 1945), post-independence (from 1945 to 2000) and the 21st century. Scientific fish collections began with French expeditions conducted in the early 19th century, including La Physicienne (1817-1820), L'Uranie (1818-1819), La Coquille (1823), L'Astrolabe (1826-1829) and La Bonite (1836-1837). British and Dutch expeditions included those of H. M. S. Curacoa (1873) and H. M. S. Challenger (1872-1876), the Siboga (1899-1900), and the Snellius I (1929-1930) respectively. These expeditions did not involve Indonesian scientists; nor were collected materials deposited in Indonesian Institutions. More recent expeditions and with the participation of the Indonesian Government included the Baruna Expedition (1964), the Te Vega (1963, 1965) and the Alpha Helix cruises (1979), the Rumphius Expedition I-IV (1972-1980), the Corindon Expedition II-III (1982-1984), the Snellius II (1984-1985), the Karubar (1991) and the Anambas (2002).Proceedings of the Horiba International Conference "New Direction of Ocean Research in the Western Pacific" : Past, Present and Future of UNESCO/IOC/WESTPAC Activity for 50 years and the JSPS Project "Coastal Marine Science"Section II: Historical Review of Coastal Research in Southeast Asi

    FIRST RECORD ON ODONTANTHIAS FLAGRIS YOSHINO AND ARAGA, 1975 (PERCIFORMES: SERRANIDAE) IN INDONESIAN WATERS

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    Two specimens of Odontanthias flagris have been caught from Bitung, North Sulawesi in June 2010. Previously, nown locations of this species are Okinawa and Nishino-shima, Japan. O. flagris is very similar with O. rhodopeplus. They shares following characters: dorsal fin rays X, 13; anal fin rays III, 7; pectorals fin rays 17-18; scales above lateral line 7; scales below lateral line 19 and gill rakers on lower limb 28. Characters differing O. flagris from O. rhodopeplus, O. chrysostictus and other six species appear in the percentage of orbit diameter. In addition, O. flagris has shorter pelvic fin rays but longer caudal peduncle and third dorsal fin spine. Its morphological features, distribution, remarks and photo of species are given in this paper

    NEW RECORD OF INDONESIAN PIGFISH, BODIANUS IZUENSIS ARAGA AND YOSHINO, 1975, AND B. MASUDAI ARAGA AND YOSHINO, 1975 (PERCIFORMES: LABRIDAE), FROM NORTH SULAWESI, INDONESIA

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    One specimen of Bodianus izuensis Araga and Yoshino, 1975, and three specimens of B. masudai Araga and Yoshino, 1975, were obtained from fish markets in Bitung and Kema, Minahasa, North Sulawesi, Indonesia, between March–July 2009. The specimens were caught from depths of about 20–30 m at coral reef ecosystem around Lembeh Island and Kema. This is the first record of these species in Indonesian waters. Morphological features, diagnostic characters, and distribution are discussed and illustrated, and color photographs of the species are presented
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