Pub Date : 2023-05-17DOI: 10.1163/15685403-bja10286
S. Guinto, R. Machida, R. Papa
Arctodiaptomus dorsalis has been reported in the Philippines as an invasive species, which originated from Central America. Apart from its wide distribution in the United States and Central America, it is now widely distributed in many lakes in the Philippine islands, such as Luzon Island and southwestern Mindanao, making it an ideal specimen for studies on population dynamics and population genetics. Recently, new techniques have been emerging as important zooplankton monitoring tools, such as metabarcoding and the use of environmental DNA/environmental RNA. However, these would only be useful if good-quality reference DNA sequences are available before utilizing these techniques. This study sequenced the nearly complete nuclear ribosomal DNA (nrDNA) of A. dorsalis from 202 individuals from Lake Taal, Batangas. The total length was 5887 bp, which includes the partial 18S sequences, and the complete 5.8S, ITS and 28S sequences with an organization that is typical for any eukaryotic organism. This is the first record of a nearly complete nrDNA sequence for freshwater calanoid copepods and is considered an important stepping stone for further molecular studies in freshwater Copepoda.
{"title":"Molecular characterization of the nearly complete nuclear ribosomal DNA sequence of the Neotropical freshwater copepod Arctodiaptomus dorsalis (Marsh, 1907) (Copepoda, Calanoida, Diaptomidae)","authors":"S. Guinto, R. Machida, R. Papa","doi":"10.1163/15685403-bja10286","DOIUrl":"https://doi.org/10.1163/15685403-bja10286","url":null,"abstract":"\u0000Arctodiaptomus dorsalis has been reported in the Philippines as an invasive species, which originated from Central America. Apart from its wide distribution in the United States and Central America, it is now widely distributed in many lakes in the Philippine islands, such as Luzon Island and southwestern Mindanao, making it an ideal specimen for studies on population dynamics and population genetics. Recently, new techniques have been emerging as important zooplankton monitoring tools, such as metabarcoding and the use of environmental DNA/environmental RNA. However, these would only be useful if good-quality reference DNA sequences are available before utilizing these techniques. This study sequenced the nearly complete nuclear ribosomal DNA (nrDNA) of A. dorsalis from 202 individuals from Lake Taal, Batangas. The total length was 5887 bp, which includes the partial 18S sequences, and the complete 5.8S, ITS and 28S sequences with an organization that is typical for any eukaryotic organism. This is the first record of a nearly complete nrDNA sequence for freshwater calanoid copepods and is considered an important stepping stone for further molecular studies in freshwater Copepoda.","PeriodicalId":10834,"journal":{"name":"Crustaceana","volume":" ","pages":""},"PeriodicalIF":0.6,"publicationDate":"2023-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48024632","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-04-27DOI: 10.1163/15685403-00004274
{"title":"New species of tropical Indo-Pacific Crustaceans named for A. J. (“Sandy”) Bruce","authors":"","doi":"10.1163/15685403-00004274","DOIUrl":"https://doi.org/10.1163/15685403-00004274","url":null,"abstract":"","PeriodicalId":10834,"journal":{"name":"Crustaceana","volume":" ","pages":""},"PeriodicalIF":0.6,"publicationDate":"2023-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42502666","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-04-27DOI: 10.1163/15685403-bja10274
S. De Grave, Jin-Ho Park, A. Anker
Two new species of the genus Onycocaris are described, based on single specimens from Fiji and Moorea respectively. Onycocaris iti sp. nov. is closely related to the relatively widespread species, O. seychellensis Bruce, 1971; whilst O. brucei sp. nov. is a pseudo-cryptic species allied to O. quadratophthalma (Balss, 1921).
{"title":"Two new species of Onycocaris (Decapoda, Palaemonidae) from the central Pacific","authors":"S. De Grave, Jin-Ho Park, A. Anker","doi":"10.1163/15685403-bja10274","DOIUrl":"https://doi.org/10.1163/15685403-bja10274","url":null,"abstract":"\u0000Two new species of the genus Onycocaris are described, based on single specimens from Fiji and Moorea respectively. Onycocaris iti sp. nov. is closely related to the relatively widespread species, O. seychellensis Bruce, 1971; whilst O. brucei sp. nov. is a pseudo-cryptic species allied to O. quadratophthalma (Balss, 1921).","PeriodicalId":10834,"journal":{"name":"Crustaceana","volume":" ","pages":""},"PeriodicalIF":0.6,"publicationDate":"2023-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46512934","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-04-27DOI: 10.1163/15685403-bja10283
N. Mercado-Salas, E. Suárez-Morales, Sahar Khodami, Pedro Martínez Arbizu
A new species of the genus Acanthocyclops is described from temporal freshwater bodies in the Sian Ka’an and Calakmul Biosphere Reserves in Southeast Mexico. Acanthocyclops fiersi n. sp. represents the third species of the genus described from the Neotropics, only after A. rebecae and A. smithae. Acanthocyclops fiersi n. sp., is recognized as a member of the A. vernalis-robustus species-complex, and its clear divergence with respect to its congeners was supported using comparative morphology and molecular methods. The mtCOI marker revealed a 0.54% K2P divergence within populations of A. fiersi n. sp. and 17.6-22.41% with respect to other members of the A. vernalis-robustus species-complex. Acanthocyclops fiersi n. sp. might be restricted to the Yucatán Peninsula. Comments about the likely underestimated regional diversity of Acanthocyclops and the need of further studies in the Neotropics are provided. An identification key to the species of Acanthocyclops distributed in Mexico is included.
在墨西哥东南部的Sian Ka’an和Calakmul生物圈保护区的淡水水体中描述了棘环虫属的一新种。棘环虫(Acanthocyclops fiersi n. sp.)是新热带地区发现的第三种，仅次于棘环虫(a.rebecae)和棘环虫(a.smithae)。棘环草(Acanthocyclops fiersi n. sp.)被认为是a . vernalis-robustus物种复合体的成员，其同源性的明显差异通过比较形态学和分子方法得到了支持。mtCOI标记显示，春芽草-粗壮种复合体的种群间K2P差异为0.54%，其他成员间的差异为17.6-22.41%。棘环草(Acanthocyclops fiersi n. sp.)可能局限于Yucatán半岛。对棘环草可能被低估的区域多样性以及在新热带地区进一步研究的必要性提出了意见。包括分布在墨西哥的棘环草种的鉴定关键。
{"title":"A new species of Acanthocyclops Kiefer, 1927 (Copepoda, Cyclopoida) from ephemeral and permanent waterbodies of Sian Ka’an and Calakmul biosphere reserves, Mexico","authors":"N. Mercado-Salas, E. Suárez-Morales, Sahar Khodami, Pedro Martínez Arbizu","doi":"10.1163/15685403-bja10283","DOIUrl":"https://doi.org/10.1163/15685403-bja10283","url":null,"abstract":"\u0000A new species of the genus Acanthocyclops is described from temporal freshwater bodies in the Sian Ka’an and Calakmul Biosphere Reserves in Southeast Mexico. Acanthocyclops fiersi n. sp. represents the third species of the genus described from the Neotropics, only after A. rebecae and A. smithae. Acanthocyclops fiersi n. sp., is recognized as a member of the A. vernalis-robustus species-complex, and its clear divergence with respect to its congeners was supported using comparative morphology and molecular methods. The mtCOI marker revealed a 0.54% K2P divergence within populations of A. fiersi n. sp. and 17.6-22.41% with respect to other members of the A. vernalis-robustus species-complex. Acanthocyclops fiersi n. sp. might be restricted to the Yucatán Peninsula. Comments about the likely underestimated regional diversity of Acanthocyclops and the need of further studies in the Neotropics are provided. An identification key to the species of Acanthocyclops distributed in Mexico is included.","PeriodicalId":10834,"journal":{"name":"Crustaceana","volume":" ","pages":""},"PeriodicalIF":0.6,"publicationDate":"2023-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43040402","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-04-27DOI: 10.1163/15685403-bja10289
C. Fransen, Eva Van der Veer, Z. Ďuriš
A new species of Palaemonella, P. sandyi sp. nov., is described on the basis of specimens collected in association with euphylliid scleractinian corals, Euphyllia glabrescens and E. cristata. Material was collected from the Maldives, Cebu in the Philippines, Semporna in Malaysia, and from Java, Bali, Sulawesi, Kalimantan, Ternate and Raja Ampat in Indonesia. The new species is similar to P. colemani and P. euphyllius, which are associated with euphylliid corals of the genus Fimbriaphyllia. The new species can be distinguished from P. colemani and P. euphyllius, as well as from the species P. philippinensis and P. smiti, which are both symbionts with plerogyrid scleractinians, on the basis of morphological characters in the rostrum and ambulatory pereiopods, colouration, and molecular data.
{"title":"A new species of Palaemonella (Decapoda, Caridea, Palaemonidae) associated with scleractinian corals of the genus Euphyllia Dana","authors":"C. Fransen, Eva Van der Veer, Z. Ďuriš","doi":"10.1163/15685403-bja10289","DOIUrl":"https://doi.org/10.1163/15685403-bja10289","url":null,"abstract":"\u0000A new species of Palaemonella, P. sandyi sp. nov., is described on the basis of specimens collected in association with euphylliid scleractinian corals, Euphyllia glabrescens and E. cristata. Material was collected from the Maldives, Cebu in the Philippines, Semporna in Malaysia, and from Java, Bali, Sulawesi, Kalimantan, Ternate and Raja Ampat in Indonesia. The new species is similar to P. colemani and P. euphyllius, which are associated with euphylliid corals of the genus Fimbriaphyllia. The new species can be distinguished from P. colemani and P. euphyllius, as well as from the species P. philippinensis and P. smiti, which are both symbionts with plerogyrid scleractinians, on the basis of morphological characters in the rostrum and ambulatory pereiopods, colouration, and molecular data.","PeriodicalId":10834,"journal":{"name":"Crustaceana","volume":" ","pages":""},"PeriodicalIF":0.6,"publicationDate":"2023-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47613542","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-04-27DOI: 10.1163/15685403-bja10285
N. Jesintha, N. Jayakumar, K. Madhavi, K. Karuppasamy
Fishery and population characteristics of the Indian white shrimp, Penaeus indicus, were studied in Pulicat Lake, on the southeast coast of India, using the FiSAT software package. The asymptotic length (), growth coefficient (K) and arbitrary origin of growth (t0) were estimated by the ELEFAN method to be 16.18 cm, 0.60 year−1 and −0.18 year, respectively. The asymptotic length () was calculated as 16.09 cm using the Wetherall method. The growth performance index (Ø′) was found to be 2.19. The mortality parameters Z, F and M were computed to be 3.85, 2.30 and 1.55 year−1, respectively. The pattern of recruitment was observed to be year-round, with a peak from June to September. The total stock, annual catch and exploitation rate for P. indicus were estimated to be 1518.43 tonnes, 809.3 tonnes, and 0.59 year−1, respectively. The estimated Maximum Sustainable Yield (MSY) was found to be 131.95 tonnes less than the annual catch. The stock of P. indicus was found to be over-exploited, so it is suggested that the effort level be reduced by 16.3% in order to sustain this resource in Pulicat Lake.
{"title":"Fishery and population characteristics of the Indian white shrimp, Penaeus indicus H. Milne Edwards, 1837 (Decapoda, Dendrobranchiata) in Pulicat Lake, southeast coast of India","authors":"N. Jesintha, N. Jayakumar, K. Madhavi, K. Karuppasamy","doi":"10.1163/15685403-bja10285","DOIUrl":"https://doi.org/10.1163/15685403-bja10285","url":null,"abstract":"\u0000Fishery and population characteristics of the Indian white shrimp, Penaeus indicus, were studied in Pulicat Lake, on the southeast coast of India, using the FiSAT software package. The asymptotic length (), growth coefficient (K) and arbitrary origin of growth (t0) were estimated by the ELEFAN method to be 16.18 cm, 0.60 year−1 and −0.18 year, respectively. The asymptotic length () was calculated as 16.09 cm using the Wetherall method. The growth performance index (Ø′) was found to be 2.19. The mortality parameters Z, F and M were computed to be 3.85, 2.30 and 1.55 year−1, respectively. The pattern of recruitment was observed to be year-round, with a peak from June to September. The total stock, annual catch and exploitation rate for P. indicus were estimated to be 1518.43 tonnes, 809.3 tonnes, and 0.59 year−1, respectively. The estimated Maximum Sustainable Yield (MSY) was found to be 131.95 tonnes less than the annual catch. The stock of P. indicus was found to be over-exploited, so it is suggested that the effort level be reduced by 16.3% in order to sustain this resource in Pulicat Lake.","PeriodicalId":10834,"journal":{"name":"Crustaceana","volume":" ","pages":""},"PeriodicalIF":0.6,"publicationDate":"2023-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43735143","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-04-27DOI: 10.1163/15685403-bja10268
B. Richer de Forges, P. Ng
Four species of Seiitaoides Griffin & Tranter, 1986 (Majoidea: Majidae) are now known from the Indo-West Pacific. A fifth species, Seiitaoides sandyi n. sp., is described here from deeper waters in New Caledonia. This tiny species is most similar to S. orientalis (Sakai, 1961) from the western Pacific, but differs markedly by the shape and armature of the supraorbital eave, carapace regions and plates, as well as structure and proportions of the male thoracic sternum, ambulatory legs and male first gonopod.
{"title":"Seiitaoides sandyi n. sp., a new species of spider crab (Decapoda, Brachyura, Majidae) from New Caledonia","authors":"B. Richer de Forges, P. Ng","doi":"10.1163/15685403-bja10268","DOIUrl":"https://doi.org/10.1163/15685403-bja10268","url":null,"abstract":"\u0000Four species of Seiitaoides Griffin & Tranter, 1986 (Majoidea: Majidae) are now known from the Indo-West Pacific. A fifth species, Seiitaoides sandyi n. sp., is described here from deeper waters in New Caledonia. This tiny species is most similar to S. orientalis (Sakai, 1961) from the western Pacific, but differs markedly by the shape and armature of the supraorbital eave, carapace regions and plates, as well as structure and proportions of the male thoracic sternum, ambulatory legs and male first gonopod.","PeriodicalId":10834,"journal":{"name":"Crustaceana","volume":" ","pages":""},"PeriodicalIF":0.6,"publicationDate":"2023-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47387447","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-03-31DOI: 10.1163/15685403-bja10277
Pumiliopes scombri Izawa, 2021 is redescribed based on specimens of both sexes recovered from the bucco-branchial cavity of the chub mackerel, Scomber japonicus Houttuyn, 1782 (Scombriformes, Scombridae), in Japan. The male of the species is described for the first time. The description of the male is also the first time for the genus. This genus is unique in having an antenna that is sexually dimorphic.
{"title":"Redescription of Pumiliopes scombri Izawa, 2021 (Copepoda, Cyclopoida, Bomolochidae) recovered from Scomber japonicus Houttuyn, 1782 (Actinopterygii) in Japan, with description of the male of the species","authors":"","doi":"10.1163/15685403-bja10277","DOIUrl":"https://doi.org/10.1163/15685403-bja10277","url":null,"abstract":"\u0000Pumiliopes scombri Izawa, 2021 is redescribed based on specimens of both sexes recovered from the bucco-branchial cavity of the chub mackerel, Scomber japonicus Houttuyn, 1782 (Scombriformes, Scombridae), in Japan. The male of the species is described for the first time. The description of the male is also the first time for the genus. This genus is unique in having an antenna that is sexually dimorphic.","PeriodicalId":10834,"journal":{"name":"Crustaceana","volume":" ","pages":""},"PeriodicalIF":0.6,"publicationDate":"2023-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44073950","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-03-31DOI: 10.1163/15685403-bja10282
Jung Nyun Kim, Mi Hyang Kim
{"title":"A new record of the xanthid crab, Demania rotundata (Serène in Guinot, 1969) (Decapoda, Brachyura, Xanthioidea) from Korean waters","authors":"Jung Nyun Kim, Mi Hyang Kim","doi":"10.1163/15685403-bja10282","DOIUrl":"https://doi.org/10.1163/15685403-bja10282","url":null,"abstract":"","PeriodicalId":10834,"journal":{"name":"Crustaceana","volume":" ","pages":""},"PeriodicalIF":0.6,"publicationDate":"2023-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42900824","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：