LARVAL MORPHOLOGY OF PANDALUS TRIDENS AND A SUMMARY OF THE PRINCIPAL MORPHOLOGICAL CHARACTERISTICS OF NORTH PACIFIC PANDALID SHRIMP
LARVAL MORPHOLOGY OF PANDALUS TRIDENS AND A SUMMARY OF THE PRINCIPAL MORPHOLOGICAL CHARACTERISTICS OF NORTH PACIFIC PANDALID SHRIMP
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北太平洋斑鳀虾幼体形态及主要形态特征综述
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发表时间：
2009
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通讯作者：
E. Haynes
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作者：
E. Haynes
来自阿拉斯加库克湾下游浮游生物的 I-VII 期幼虫在形态上与来自北太平洋的 P. borealis、P. goniurus、P. jordani 和 P. stenolepis 的幼虫最为相似。 Tridens 幼虫与 P. borealis、P. goniurus 和 P. jordani 幼虫的区别在于其喙部和触角鳞片的形状以及腹部体节的刺。 P. tridens 幼虫与 R stenolepis 幼虫的不同之处在于甲壳、腹部体节和尾节的形状。触角鞭毛和喙的长度；和触角尺度的设置。幼虫形态的差异支持 P 的分类。 tridens 作为一个种而不是 P 的亚种。蒙塔吉。总结了在北太平洋发现的所描述的熊猫虾幼虫的主要形态特征。 1976年，国家海洋渔业局西北和阿拉斯加渔业中心奥克湾实验室和阿拉斯加渔猎部进行了一项调查，以确定卡切马克湾下库克湾地区帝王蟹和斑鳐虾幼虫的季节性分布（Haynes2）。调查期间，在库克湾下游的浮游生物拖曳中捕获了 I-VII 阶段的 Pandalus tridens (= P. montagui tridens Rathbun 1902) 幼体。除 I 期外，P 的幼虫。 tridens 尚未在文献中描述。在本报告中，我描述并举例说明了捕获的七个幼体阶段，并将我的描述与其他作者给出的大熊猫幼体幼体阶段的描述进行比较。我还讨论了来自幼虫形态的证据，这些证据支持将亚种 P. montagui tridens 提高到完整物种状态 P. tridens Rathbun 1902。还总结了所描述的北太平洋熊猫虾幼虫的主要形态特征。西北和阿拉斯加渔业中心奥克湾实验室、国家海洋渔业局、NOAA、P.O. Box 155，Auke Bay，AK 99821。'Haynes，E. 1977。IV 阿拉斯加卡切马克湾下库克湾的帝王蟹和熊猫虾幼虫的分布状况摘要，1976 年。见 L. L. Trasky、L. B. Flagg 和 D.C.伯班克（编辑），卡切马克湾和库克湾下游的环境研究，卷。 4, 52 页。阿拉斯加州部钓鱼游戏，安克雷奇。手稿于 1979 年 3 月接受。 渔业公报：卷。 77，NO.3，1980。 方法 在 1976 年的调查中，通过将 61 cm bongo 采样器以略小于 1 m/s 的速度从海底上方约 1 m 垂直拖曳至海面来采集浮游生物。使用具有0.333毫米网眼的网和具有0.571毫米网眼的鳕鱼端罐。 P. tridens 的 Zoeae 是在库克湾下游基奈半岛以西约 16 公里处 120-160 m 深的水中采集的。鳃和附肢的术语、测量方法、插图技术以及命名法均由 Haynes (1979) 使用。幼虫的鉴定是基于 Ivanov (1971) 对已知亲缘孵化出的第一阶段幼虫的描述，以及奥克湾实验室工作人员埃塞尔文·霍夫曼 (Ethelwyn Hoffman) 从已知亲缘孵化出的未描述的第一阶段标本。仅给出那些有助于轻松识别每个阶段的形态特征。为了清楚起见，图中通常省略刚毛上的刚毛，但显示了带刺的刚毛。
Larval stages I-VII ofPandaIus tridens from plankton of lower Cook Inlet, Alaska, are most similar morphologically to larvae of P. borealis, P. goniurus, P. jordani, and P. stenolepis from the North Pacific Ocean. Larvae of P. tridens are distinguished from larvae of P. borealis, P. goniurus, and P. jordani by the shape ofthe rostrum and antennal scale, and spination ofthe abdominal somites. Larv~e of P. tridens differ from larvae of R stenolepis by shape of the carapace, abdominal somites, and telson; length of the antennal flagellum and rostrum; and setation of the antennal scale. Differences in larval morphology support classification ofP. tridens as a species rather than a subspecies ofP. montagui. A summary of the principal morphological characteristics of the described larvae of pandalid shrimp found in the North Pacific Ocean is provided. In 1976, the Northwest and Alaska Fisheries Center Auke Bay Laboratory of the National Marine Fisheries Service and the Alaska Department of Fish and Game conducted a survey to determine the seasonal distribution of larvae of king crab and pandalid shrimp in the Kachemak Bay-lower Cook Inlet area (Haynes2). During the survey, Stages I-VII zoeae ofPandalus tridens (= P. montagui tridens Rathbun 1902) were captured in plankton tows in lower Cook Inlet. Except for Stage I, zoeae ofP. tridens have not been described in the literature. In this report I describe and illustrate each of the seven zoeal stages captured and compare my descriptions with those of pandalid shrimp zoeae given by other authors. I also discuss the evidence from larval morphology that supports raising the subspecies, P. montagui tridens, to full species status, P. tridens Rathbun 1902. A summary of the principal morphological characteristics ofdescribed pandalid shrimp larvae of the North Pacific Ocean is also given. 'Northwest and Alaska Fisheries Center Auke Bay Laboratory, National Marine Fisheries Service, NOAA, P.O. Box 155, Auke Bay, AK 99821. 'Haynes, E. 1977. IV Summary status on the distribution ofking crab and pandalid shrimp larvae in Kachemak Bay-lower Cook Inlet, Alaska, 1976. In L. L. Trasky, L. B. Flagg,andD.C. Burbank (editors), Environmental studies ofKachemak Bay and lower Cook Inlet, vol. 4, 52 p. Alaska Dep. Fish Game, Anchorage. Manuscript accepted March 1979. FISHERY BULLETIN: VOL. 77, NO.3, 1980. METHODS During the 1976 survey, plankton was collected by hauling 61 cm bongo samplers vertically from about 1 m above the ocean bottom to the surface at a velocity of slightly <1 m/s. Nets with 0.333 mm mesh and cod end jars with 0.571 mm mesh were used. Zoeae of P. tridens were collected in water 120-160 m deep about 16 km west of the Kenai Peninsula in lower Cook Inlet. The terminology, methods of measurement, techniques of illustration, and nomenclature of gills and appendages are those used by Haynes (1979). Identification of the zoeae is based on description of Stage I zoeae hatched from known parentage by Ivanov (1971) and undescribed Stage I specimens hatched from known parentage by Ethelwyn Hoffman of the Auke Bay Laboratory's staff. Only those morphological characteristics useful for readily identifying each stage are given. For clarity, setules on setae are usually omitted from the figures, but spinulose setae are shown.