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Rissoina ponderi n. sp. (Caenogastropoda: Rissoinidae) a new endemic species from New South Wales and a comparison with the related species Rissoina elegantula Angas, 1880 美国黄松蛙(Caeno腹足目:黄松蛙科):新南威尔士州的一个新的特有种,并与相关物种Angas的比较,1880
IF 1 4区 生物学 Q3 Agricultural and Biological Sciences Pub Date : 2022-06-28 DOI: 10.1080/13235818.2022.2091405
W. Sleurs
ABSTRACT A new species Rissoina ponderi n. sp., so far only collected from the coast of New South Wales, is described and contrasted with its morphologically most similar species R. elegantula Angas, 1880. The species differ in larval development and in geographical distribution pattern. The hypotheses of sister species and poecilogony are discussed. http://zoobank.org/urn:lsid:zoobank.org:pub:CEBAE295-444C-4383-99B6-07120BEC729D
摘要描述了迄今为止仅在新南威尔士州海岸采集的一个新种——美国黄松,并与其形态上最相似的物种安哥拉秀丽隐杆线虫(R.elegantula Angas,1880)进行了对比。该物种在幼虫发育和地理分布模式上各不相同。讨论了姐妹种和poecilogony的假说。http://zoobank.org/urn:lsid:zoobank.org:pub:CEBAE295-444C-4383-99B6-07120BEC729D
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引用次数: 0
Finned octopus Cirroteuthis Eschricht, 1836 (Cephalopoda: Cirrata: Cirroteuthidae) confirmed from Australian waters 有鳍章鱼Cirroteuthis Eschricht, 1836(头足纲:卷腹目:卷腹科)证实于澳大利亚水域
IF 1 4区 生物学 Q3 Agricultural and Biological Sciences Pub Date : 2022-06-17 DOI: 10.1080/13235818.2022.2087143
Tristan Joseph Verhoeff
ABSTRACT The finned octopus Cirroteuthis muelleri is abundant in the far northern hemisphere, yet limited records exist of a possible undescribed southern hemisphere species, Cirroteuthis cf. muelleri. A single specimen of C. cf. muelleri was identified amongst material collected during a 2017 abyssal survey off eastern Australia. The specimen had a dorsal mantle length of about 116 mm when fresh and 56 mm following preservation and was captured at 2338−2581 m depth. Morphological characteristics of this specimen aligned closely with C. cf. muelleri from New Zealand, and differences in these to C. muelleri from the North Atlantic and North Pacific, combined with the disjunct distribution, warrant further investigation of the southern hemisphere specimens as a possible new species. This discovery represents a significant range extension of Cirroteuthis and is the first occurrence of this genus from Australian waters.
有鳍章鱼(Cirroteuthis muelleri)在遥远的北半球非常丰富,但在南半球有一种可能未被描述的物种(Cirroteuthis cf. muelleri)的记录有限。2017年,在澳大利亚东部海域进行的一次深海调查中,在收集的材料中发现了一个c.c.m ulelleri标本。该标本在新鲜时的背地幔长度约为116毫米,保存后的背地幔长度约为56毫米,捕获深度为2338 - 2581米。该标本的形态特征与来自新西兰的C. C. muelleri非常接近,与来自北大西洋和北太平洋的C. muelleri的差异,结合其不相交的分布,值得进一步研究南半球标本作为新种的可能性。这一发现代表了Cirroteuthis的重要范围扩展,并且是该属首次在澳大利亚水域出现。
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引用次数: 2
The first evidence for genetic differentiation of a non-native false mussel Mytilopsis sallei (Récluz, 1849) in southern Thailand. 泰国南部非本地假贻贝Mytilopsis sallei(Récluz,1849)基因分化的第一个证据。
IF 1 4区 生物学 Q3 Agricultural and Biological Sciences Pub Date : 2022-04-03 DOI: 10.1080/13235818.2022.2073191
Wanlada Klangnurak, Suphatsara Sangphueak, Kringpaka Wangkulangkul
ABSTRACT The false mussel Mytilopsis sallei (Récluz, 1849) is a bivalve indigenous to the tropical western Atlantic that has become invasive in Southeast-Asia. Establishment of M. sallei populations in Thailand was reported in 2008 and it has spread to several locations along both the Gulf of Thailand and Andaman Sea coasts. The survival of planktonic larvae of M. sallei in oceanic salinity is known to be poor so these populations may be a result of multiple introductions, and propagule exchanges between populations may be limited. To test this, we investigated the variability of cytochrome oxidase subunit I in M. sallei within and between spatially isolated locations, as well as between the Gulf of Thailand and Andaman Sea coasts. In total, 407 base pairs from 60 individuals across five locations were analysed. Differences in the genetic structure of M. sallei among the five populations from southern Thailand suggest that there is no connectivity between the Gulf of Thailand and Andaman Sea populations. The results revealed the presence of six of the 15 haplotypes known among Southeast-Asian populations of M. sallei. This study contributes to the understanding of population genetic structure of the non-native false mussel, M. sallei, in Southeast-Asia.
摘要:假贻贝Mytilopsis sallei(Récluz,1849)是一种原产于热带西大西洋的双壳类动物,现已入侵东南亚。据报道,2008年在泰国建立了M.sallei种群,并已传播到泰国湾和安达曼海沿岸的几个地方。众所周知,M.sallei浮游幼虫在海洋盐度中的存活率很低,因此这些种群可能是多次引入的结果,种群之间的繁殖体交换可能有限。为了验证这一点,我们研究了M.sallei细胞色素氧化酶亚基I在空间隔离地点内和之间以及泰国湾和安达曼海海岸之间的变异性。总共分析了来自五个地点的60个个体的407个碱基对。泰国南部五个种群中M.sallei基因结构的差异表明,泰国湾和安达曼海种群之间没有联系。研究结果显示,在东南亚人群中已知的15种M.sallei单倍型中有6种存在。本研究有助于了解东南亚非本地假贻贝M.sallei的种群遗传结构。
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引用次数: 1
Phenotypic plasticity of the invasive apple snail, Pomacea canaliculata, in China: a morphological differentiation analysis 中国侵袭性苹果蜗牛的表型可塑性:形态分化分析
IF 1 4区 生物学 Q3 Agricultural and Biological Sciences Pub Date : 2022-04-03 DOI: 10.1080/13235818.2022.2064043
M. Luo, B. Zhao, Jiaen Zhang, Z. Qin
ABSTRACT Pomacea canaliculata is listed among the world’s 100 worst invasive species, for threatening rice production and wetland biodiversity. We compared morphological and genetic characteristics of the 14 P. canaliculata geographic populations in mainland China to explore morphological differentiation in relation to geographical isolation and climate effects. The results showed that the average shell height, standing height and body width of P. canaliculata samples were 29.39, 18.52 and 19.91 mm. Morphological characteristics were significantly different among the P. canaliculata geographic populations. The changes in morphological characteristics fitted a linear model. Geometric measurement showed a significant difference in centroid size among the 14 populations. Canonical variates analysis revealed three distinct clusters and that four geographic populations were independent in shell shape variation. Mahalanobis distances showed significant relationships among all populations except Pingtang vs. Zhangzhou. The cumulative contribution of PC1, PC2 and PC3 in principal component analysis reached 80%. The overall identification accuracy was 97%. However, only 3.9% of pairwise Coefficient of Difference values exceeded 1.28. The difference in morphological traits did not conform to the isolation-by-distance model. The P. canaliculata phenotype was closely related to local climatic factors. In summary, the adaptation of Chinese P. canaliculata populations is ongoing.
Pomacea canaliculata因威胁水稻生产和湿地生物多样性而被列入全球100个最严重的入侵物种之一。本研究比较了中国大陆14个canaliculata地理种群的形态和遗传特征,探讨了地理隔离和气候效应对canaliculata地理种群形态分化的影响。结果表明,小管青松标本的平均壳高、站高和体宽分别为29.39、18.52和19.91 mm。不同地理种群间形态特征差异显著。形态学特征的变化符合线性模型。几何测量结果表明,14个居群的质心大小存在显著差异。典型变量分析表明,壳形变化具有3个不同的聚类和4个地理种群的独立性。除平塘种群与漳州种群外,其余种群间马氏比目鱼距离呈显著相关。PC1、PC2、PC3在主成分分析中的累计贡献率达到80%。总体识别准确率为97%。但只有3.9%的两两差异系数值超过1.28。形态性状的差异不符合距离隔离模型。水杨表型与当地气候因子密切相关。综上所述,中国小管木种群的适应仍在进行中。
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引用次数: 1
Long-distance dispersal from island to island: colonisation of an oceanic island in the vicinity of the Asian continent by the land snail genus Karaftohelix (Gastropoda: Camaenidae) 从一个岛屿到另一个岛屿的远距离传播:陆生蜗牛属Karaftohelix在亚洲大陆附近的一个海洋岛屿上的定居(腹足目:Camaenidae)
IF 1 4区 生物学 Q3 Agricultural and Biological Sciences Pub Date : 2022-04-03 DOI: 10.1080/13235818.2022.2066454
K. Kimura, S. Chiba, L. Prozorova, J. Pak
ABSTRACT Ullung Island is an oceanic island in the Sea of Japan about 130 km distant from the Korean peninsula. The biota of this oceanic island is thought to be derived from the closest continental region while the importance of long-distance dispersal from other areas for the formation of the Ullung Island biota was considered negligible. In this study, we have examined the origin of the Ullung Island-endemic land snail Karaftohelix adamsi (Kuroda & Hukuda, 1944) using a molecular phylogenetic approach with two mitochondrial (COI and 16S rRNA) and nuclear (ITS regions) DNA sequences. Our results revealed that K. adamsi has originated from the northernmost region of the Japanese archipelago or Sakhalin Island, most likely from Rebun Island of Hokkaido, by long-range dispersal across a distance of 1200 km. This finding reveals that the biota of the oceanic Ullung Island has not exclusively originated from the Asian mainland, but that some elements have originated from the more distant archipelago of Japan and the Far East of Russia.
郁隆岛是位于日本海的一个海洋岛屿,距离朝鲜半岛约130公里。这个海洋岛屿的生物群被认为是来自最近的大陆区域,而其他地区的远距离扩散对乌隆岛生物群形成的重要性被认为是微不足道的。在这项研究中,我们使用分子系统发育方法研究了Ullung岛特有的陆地蜗牛Karaftohelix adamsi (Kuroda & Hukuda, 1944)的起源,该方法具有两个线粒体(COI和16S rRNA)和核(ITS区域)DNA序列。我们的研究结果表明,K. adamsi起源于日本群岛或库页岛的最北端地区,最有可能来自北海道热本岛,远距离散布1200公里。这一发现表明,海洋郁隆岛的生物群并不完全来自亚洲大陆,有些元素来自更遥远的日本群岛和俄罗斯远东地区。
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引用次数: 2
Nitidotellina hachiensis n. sp. (Bivalvia: Tellinidae) from the Seto Inland Sea, between Honshū and Shikoku, western Japan 产自日本西部本州和四国之间的濑户内海的Nitidotellina hachiensis n. sp.(双壳目:Tellinidae)
IF 1 4区 生物学 Q3 Agricultural and Biological Sciences Pub Date : 2022-04-03 DOI: 10.1080/13235818.2022.2068112
H. Fukuda, Hiroshi Ishikawa, Soma Ito, T. Haga
ABSTRACT A new species of tellinid, Nitidotellina hachiensis, is described from Japan. The shell of this species is characterised by a pair of strong keels that run from the beaks to the posterior end and forms a prominent posterior notch. The recent individuals are found only in the Seto Inland Sea (Okayama, Hiroshima, Yamaguchi and Ehime prefectures), while the one fossil record so far known is from the Chibanian (middle Pleistocene) Toyohashi Formation in Aichi Prefecture, central Honshū. Living individuals are uncommon and mainly found living in sandy mud bottoms from the low tide line down to the subtidal zone in the inner parts of large bays. It can be regarded as endangered due to the recent habitat loss and water pollution of inner bay environments.
摘要报道了日本tellinia一新种Nitidotellina hachiensis。这个物种的外壳的特点是一对强壮的龙骨,从喙到后端,形成一个突出的后缺口。最近的个体只在濑户内海(冈山、广岛、山口和爱媛县)被发现,而迄今为止已知的一个化石记录来自于本州中部爱知县的千叶期(中更新世)丰桥组。活着的个体并不多见,主要生活在大海湾内部从退潮线到潮下带的沙泥底。由于最近的栖息地丧失和内湾环境的水污染,它可以被视为濒临灭绝。
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引用次数: 1
Settlement of oyster Magallana bilineata (Röding, 1798) spat in the natural environment: seasonality and substrate texture preference 牡蛎Magallana bilineata (Röding, 1798)在自然环境中的定居:季节性和基质质地偏好
IF 1 4区 生物学 Q3 Agricultural and Biological Sciences Pub Date : 2022-04-03 DOI: 10.1080/13235818.2022.2073651
M. Lebata-Ramos, Cleresa S. Dionela, E. Solis, Jonas P. Mediavilla, Rema C. Sibonga, Schedar Rose M. Novilla
ABSTRACT This study determined the seasonality of Magallana bilineata spat settlement in a natural oyster bed and established surface texture preference of competent larvae by comparing the numbers of spat settling on the smooth and rough surfaces of ceramic tiles over a period of 31 months. This will guide farmers when to deploy cultches to maximise spat harvest. Regardless of tile orientation, spat numbers were significantly higher on the rough side (129.07 ± 9.3 m−2) than on the smooth side (66.95 ± 7.0 m−2). Spat collection was highest in March, June and July in each of 2015, 2016 and 2017. There was no significant correlation between the number of spat settling in each month with temperature, salinity, pH, dissolved oxygen (DO), sulphide, phosphate, nitrate, nitrite and ammonia concentrations, plankton density measured at deployment and retrieval of tiles, except for DO during deployment. The only significant correlations with mean shell length (SL) were with DO and ammonia during tile retrieval. Mean SL did not significantly differ between tile orientations and surfaces but differed between months, being highest in August 2015 and August 2016. From these results, it is best to deploy roughened cultches in this particular area in March, June and July.
摘要本研究确定的季节性Magallana bilineata争端解决在天然牡蛎的床上,建立了表面纹理主管幼虫的偏好比较多的争端解决瓷砖的光滑和粗糙的表面在一段时间内的31个月。这将指导农民何时部署滴管以最大限度地提高水珠产量。无论瓷砖朝向如何,粗糙面(129.07±9.3 m−2)的水珠数量明显高于光滑面(66.95±7.0 m−2)。2015年、2016年和2017年的3月、6月和7月痰量最高。除部署期间的溶解氧(DO)、硫化物、磷酸盐、硝酸盐、亚硝酸盐和氨氮浓度、浮游生物密度外,每个月的沉降数量与部署时的温度、盐度、pH、溶解氧(DO)、硫化物、磷酸盐、硝酸盐、亚硝酸盐和氨氮浓度均无显著相关。与平均壳长(SL)唯一显著相关的是DO和氨氮。平均SL在瓷砖朝向和表面之间没有显著差异,但在月份之间存在差异,2015年8月和2016年8月最高。从这些结果来看,最好在3月、6月和7月在这一特定地区部署粗糙的culches。
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引用次数: 1
A new species of Haploptychius Möllendorff, 1906 (Stylommatophora: Streptaxidae) from the Western Ghats, India 印度西高止山脉Haploptychius属一新种Möllendorff, 1906(柱头虫目:链蝇科)
IF 1 4区 生物学 Q3 Agricultural and Biological Sciences Pub Date : 2022-04-03 DOI: 10.1080/13235818.2022.2075081
A. Bhosale, T. Thackeray, Omkar V. Yadav
ABSTRACT We here describe a new species of the streptaxid snail genus Haploptychius from the northern Western Ghats of Maharashtra, which is the third member of the genus from India. Haploptychius sahyadriensis n. sp. is distinguished from the other Indian and South-East Asian Haploptychius sp. in having suboblique-heliciform shell, low spire and presence of one strong parietal lamella. The new species has unique genital anatomy in having a long penis with a penial sheath, the presence of penial appendix, penial hooks, atrium and vagina with longitudinal ridges and irregular transverse ridges respectively, but without any hooks. It bears a shiny muscle near the junction of the vagina, gametolytic duct and the free oviduct. Based on the shell morphology and genital characters, the new species is placed in the genus Haploptychius. Our study reveals that other unexplored areas in the northern Western Ghats may potentially harbour more undescribed land snail species which could be endemic. Publication LSID: lsid:http://zoobank.org:pub:18C6E99C-6FDE-46A6-8E12-EB834D588910
摘要本文描述了来自印度马哈拉施特拉邦西高止山脉北部的链状蜗牛属Haploptychius的一个新种,这是该属第三个来自印度的成员。sahyadriensis n. sp.与其他印度和东南亚的haploptychus sp.的区别在于具有近斜螺旋形外壳,低尖顶和存在一个强大的顶板。该新种具有独特的生殖器解剖结构,有长阴茎,有阴茎鞘,有阴茎阑尾,有阴茎钩,心房和阴道分别有纵脊和不规则横脊,但没有任何钩。在阴道、配子体导管和游离输卵管交界处附近有一块有光泽的肌肉。根据壳形态和生殖特征,该新种归属于Haploptychius属。我们的研究表明,在西高止山脉北部的其他未开发地区可能潜藏着更多未描述的陆地蜗牛物种,这些物种可能是地方性的。出版物LSID: LSID: http://zoobank.org:pub:18C6E99C-6FDE-46A6-8E12-EB834D588910
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引用次数: 0
Clearance of Escherichia coli by the freshwater mussel Lamellidens marginalis in laboratory conditions 淡水贻贝在实验室条件下对大肠杆菌的清除
IF 1 4区 生物学 Q3 Agricultural and Biological Sciences Pub Date : 2022-04-03 DOI: 10.1080/13235818.2022.2070101
Md. Firoz Shah, Md Abdullah Al Mamun, Muhammad Tofazzal Hossain, M. Moniruzzaman, S. Yeasmine, M. Uddin, M. Jasim Uddin
ABSTRACT Scientists and environmentalists are searching for biological remedies to reduce E. coli concentrations in waterbodies to acceptable levels. The present research was conducted to investigate clearance of E. coli isolated from freshwater mussels (Lamellidens marginalis) in the Old Brahmaputra River, Mymensingh, Bangladesh by conspecific mussels from the same river in aquarium conditions. Mussels were acclimated, depurated and divided into three shell length (SL) groups. Small (38.28 ± 2.81 mm), medium (47.28 ± 1.52 mm) and large (55.89 ± 2.25 mm) mussels were assigned to aquaria designated as T2, T3 and T4 respectively whereas empty mussel shells were assigned to T1 as control in triplicate. After addition of pure E. coli suspensions, 3 mL water samples from each aquarium were collected at hourly intervals for 12 h for total E. coli count (TEC). Statistical analysis revealed that both time and treatments have significant effects (P < 0.05) on TEC. Presence of live mussels caused 1.41–1.63 log10 reduction of TEC after 12 h compared to the control. However, such differences were not consistent among the different SL groups. In conclusion, L. marginalis is capable of reducing E. coli concentrations although the efficacy is not consistently related with mussels’ shell lengths.
摘要科学家和环保主义者正在寻找生物疗法,以将水体中的大肠杆菌浓度降低到可接受的水平。本研究旨在调查在水族馆条件下,来自孟加拉国迈门辛旧布拉马普特拉河淡水贻贝(Lamellidens edges)的同种贻贝对大肠杆菌的清除情况。对贻贝进行驯化、脱毒,并将其分为三个壳长(SL)组。小型(38.28 ± 2.81 毫米),中等(47.28 ± 1.52 mm)和大(55.89 ± 2.25 mm)贻贝被分配到分别指定为T2、T3和T4的水族馆而空贻贝壳被分配到T1作为对照,一式三份。添加纯大肠杆菌悬浮液后,3 每隔一小时从每个水族馆收集mL的水样,持续12小时 h表示总大肠杆菌计数(TEC)。统计分析表明,用药时间和用药效果均显著(P < 0.05)。活贻贝的存在导致12年后TEC减少1.41–1.63 log10 h。然而,不同SL组之间的这种差异并不一致。总之,边缘乳杆菌能够降低大肠杆菌的浓度,尽管其功效与贻贝的外壳长度并不一致。
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引用次数: 0
Onchidium reevesii may be able to distinguish low-frequency sound to discriminate the state of tides 海螺可以通过分辨低频声音来辨别潮汐的状态
IF 1 4区 生物学 Q3 Agricultural and Biological Sciences Pub Date : 2022-04-03 DOI: 10.1080/13235818.2022.2065439
Rongcheng Rao, Heding Shen
ABSTRACT In order to study how Onchidium reevesii predict tides, the cDNA encoding the precursor of the pedal peptide (Pep), a neuropeptide that plays an important role in neuromotor regulation, was cloned by RACE (Rapid Amplification of cDNA Ends) technology. Bioinformatics analysis was carried out on the sequence of the cloned cDNA. The frequency spectra of the intertidal zone were obtained and Quantitative Real-time PCR (qRT-PCR) experiments were carried out to study the connection between low-frequency sound and tidal perception. The full length of the cDNA was 1627 bp and it encodes 15 copies of Pep; The frequency spectra and qRT-PCR results suggest that O. reevesii can distinguish low-frequency sound waves (100–130 Hz) produced by tides, enabling them to avoid tidal immersion or to come out to feed after the tides falls. In this species, Pep may act as the neurotransmitter for tidal perception based on low-frequency sound signals. These experiments will provide a reference for the further study of the mechanism by which O. reevesii senses tides.
摘要为了研究泥鳅(Onchidium reevesii)预测潮汐的机制,利用RACE (Rapid Amplification of cDNA Ends)技术克隆了踏板肽(Pep)前体的cDNA, Pep是一种在神经运动调节中起重要作用的神经肽。对克隆的cDNA序列进行生物信息学分析。获得潮间带的频谱,并进行实时荧光定量PCR (Quantitative Real-time PCR, qRT-PCR)实验,研究低频声音与潮汐感知之间的关系。cDNA全长1627 bp,编码Pep 15个拷贝;频率谱和qRT-PCR结果表明,O. reevesii能够区分潮汐产生的低频声波(100-130 Hz),使其能够避免潮汐淹没或在退潮后出来觅食。在这个物种中,Pep可能作为基于低频声音信号的潮汐感知的神经递质。这些实验将为进一步研究海鞘感应潮汐的机制提供参考。
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引用次数: 0
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Molluscan Research
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