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Quantifying hurricane impacts on United States Virgin Islands reef fishes using a catchability invariant approach to compare uncalibrated survey indices 量化飓风对美属维尔京群岛珊瑚礁鱼类的影响,采用可捕获性不变方法比较未校准的调查指数
4区 地球科学 Q2 Earth and Planetary Sciences Pub Date : 2023-01-01 DOI: 10.5343/bms.2023.0011
Caitlin Langwiser, Nathan R Vaughan, Laura Jay W Grove
The United States Virgin Island’s (USVI) coral reefs support many economically and ecologically important fish species. Located in the Caribbean Sea, they are subject to frequent severe weather disturbances, including two category 5 hurricanes, Irma and Maria, in 2017. The overarching goal of this study was to identify reef fish community impacts following these extreme events using discontinuous survey indices. Long-term (2001–2021), in situ, fishery-independent survey data using two methods were standardized to the extent possible in two regions of the USVI, St. Thomas/St. John (STT/STJ) and St. Croix (STX). Comparable data were assessed, 73 species collected on hard-bottom habitat, to identify the number of these species with significant changes in density and/or mean length between two-year survey intervals over the historic baseline (2001–2015), disturbance (2017–2019), and post-disturbance (2019–2021) periods. The results varied by region: STT/STJ had no disturbance impact and STX had a significant disturbance impact. In STX, 20 species had significant changes in density in the disturbance period compared to an average of 9.7 (SD 3.8) species for the baseline period. The proportion of species with significant density increases and decreases were similar suggesting that overall disturbance impacts are nuanced. Mean length observations were less informative, likely due to survey method and sample size changes. However, in combination with density they provided useful insights into the possible causes of population change. The successful use of discontinuous survey indices to obtain meaningful biological insights has broader applications to ecosystem and fishery datasets with similar limitations.
美属维尔京群岛(USVI)的珊瑚礁支持许多经济和生态上重要的鱼类物种。它们位于加勒比海,经常受到恶劣天气的干扰,包括2017年的两次5级飓风“厄玛”和“玛丽亚”。本研究的总体目标是利用不连续调查指数确定这些极端事件对珊瑚鱼群落的影响。长期(2001-2021年),在美属维尔京群岛的两个地区,圣托马斯/圣。约翰(STT/STJ)和圣克罗伊(STX)。对在硬底栖息地收集的73个物种的可比数据进行了评估,以确定在历史基线(2001-2015年)、干扰(2017-2019年)和干扰后(2019-2021年)期间,两年调查间隔期间密度和/或平均长度发生显著变化的物种数量。不同地区的结果不同:STT/STJ没有干扰影响,STX有显著的干扰影响。干扰期有20种昆虫密度发生显著变化,而基线期平均为9.7种(SD 3.8)。密度显著增加和显著减少的物种比例相似,表明总体干扰影响是微妙的。平均长度观测的信息量较小,可能是由于调查方法和样本量的变化。然而,结合密度,它们为人口变化的可能原因提供了有用的见解。成功地使用不连续调查指数来获得有意义的生物学见解,对于具有类似局限性的生态系统和渔业数据集具有更广泛的应用。
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引用次数: 0
Management of buoyant materials in aquaculture for brackish and salt water in Quảng Ninh province (Vietnam) Quảng宁省咸淡水和咸水养殖中浮力物质的管理(越南)
4区 地球科学 Q2 Earth and Planetary Sciences Pub Date : 2023-01-01 DOI: 10.5343/bms.2022.0069
Cao Thi Thu Trang, Nguyen Van Cong, Pham Thi Da, Nguyen Xuan Thanh, Pham Thi Kha, Tran Anh Tu
High-density polyethylene (HDPE) material is widely used to make buoys in aquaculture. However, in Vietnam, Styrofoam is still the most popular material used among fish farmers due to its buoyancy, low cost, and availability in the market. There is a lack of regulations for the use and disposal of Styrofoam; moreover, a lack of concern regarding the consequences of mismanagement leads to impacts on the marine environment and ecosystems. HDPE plastic is a good substitute for Styrofoam, but the question is how to convince aquaculture households to voluntarily shift from one material to another or even force them through appropriate legislation for a cleaner environment. Based on the durability characteristics of Styrofoam and HDPE plastic, we have developed a local technical regulation on floating materials in aquaculture, which has been endorsed by the People Committee of Quang Ninh province and promulgated for adoption through the document coded QCDP 08:2020/QN. The method is a technical fence to be deployed to remove the foam buoys from aquaculture in the Quang Ninh province. So far, 87.8% of the buoys in the province have been converted to new materials. Quang Ninh is the first province in Vietnam to have a breakthrough in the management of foam buoys, contributing to the reduction of plastic waste in aquaculture.
高密度聚乙烯(HDPE)材料在水产养殖中广泛用于制作浮标。然而,在越南,聚苯乙烯泡沫塑料仍然是最受养鱼户欢迎的材料,因为它的浮力、低成本和市场上的可用性。缺乏使用和处置聚苯乙烯泡沫塑料的规定;此外,缺乏对管理不善后果的关注导致对海洋环境和生态系统的影响。HDPE塑料是聚苯乙烯泡沫塑料的良好替代品,但问题是如何说服水产养殖户自愿从一种材料转向另一种材料,甚至通过适当的立法迫使他们为更清洁的环境而努力。基于聚苯乙烯泡沫塑料和HDPE塑料的耐久性特性,我们制定了一项关于水产养殖中漂浮物的地方技术法规,该法规已获得广宁省人民委员会的批准,并通过编码为QCDP 08:2020/QN的文件公布采用。该方法是一种技术围栏,将在广宁省部署,以清除水产养殖中的泡沫浮标。到目前为止,全省87.8%的浮标已经转化为新材料。广宁省是越南第一个在泡沫浮标管理方面取得突破的省份,有助于减少水产养殖中的塑料废物。
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引用次数: 0
Increasing risk of migrations through the Panama Canal 通过巴拿马运河的移民风险增加
4区 地球科学 Q2 Earth and Planetary Sciences Pub Date : 2023-01-01 DOI: 10.5343/bms.2023.0074
Aaron O'Dea, Gustavo A Castellanos-Galindo
Lv:0:53:http://www.w3.org/1999/02/22-rdf-syntax-ns#XMLLiteral[Editorial]
Lv:0:53:http://www.w3.org/1999/02/22-rdf-syntax-ns#XMLLiteral<xhtml:span xmlns:xhtml="http://www.w3.org/1999/xhtml" xml:lang="en">[Editorial]</xhtml:span>;
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引用次数: 0
First observation of the nudibranch Dermatobranchus tongshanensis (Nudibranchia: Arminidae) feeding on gorgonian Echinomuricea spinifera 铜山裸鳃虫(裸鳃亚目:蜘蛛科)取食柳珊瑚的首次观察
IF 1.5 4区 地球科学 Q2 Earth and Planetary Sciences Pub Date : 2023-01-01 DOI: 10.5343/bms.2022.0041
S. K. Yiu, J. T. H. Chung
We report a field observation of Dermatobranchus tongshanensis feeding on Echinomuricea spinifera. Before this study, the diet of D. tongshanensis had never been reported. Our laboratory observation revealed D. tongshanensis fed on E. spinifera only but did not ingest gorgonian Echinogorgia sp. and black coral Antipathes curvata provided.
本文报道了铜山皮枝对棘球蚴取食的野外观察。在本研究之前,对铜山螯虾的食性研究尚未见报道。我们的实验室观察发现,铜山金龟只以棘叶金龟为食,不以柳珊瑚和黑珊瑚为食。
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引用次数: 0
Visual surveys reveal coral growth in mangrove fringe in a subtropical metropolis 目视调查显示珊瑚生长在亚热带大都市的红树林边缘
IF 1.5 4区 地球科学 Q2 Earth and Planetary Sciences Pub Date : 2023-01-01 DOI: 10.5343/bms.2023.0001
Kellie Flowers, Paige Golembeski, Bailey Ross, Richard F. Karp, A. Baker
Although coexisting mangrove-coral (CMC) habitats have been identified and categorized globally, they are still underreported and understudied. Visual surveys revealed the presence of five species of corals in two out of four potential CMC habitats around Biscayne Bay, Miami, Florida, a highly urbanized subtropical lagoon. These corals were dominated by algal symbionts in the genus Breviolum, suggesting these low-light but thermally variable environments may be buffered from photoinhibition stress that characterizes nearby hardbottom environments. Further surveys and monitoring of CMCs, particularly in urban environments, may inform coastal community ecology and advance conservation and restoration efforts.
虽然红树林-珊瑚共存的栖息地已经在全球范围内被识别和分类,但它们仍然被低估和研究不足。目视调查显示,在佛罗里达州迈阿密比斯坎湾(一个高度城市化的亚热带泻湖)周围的四个潜在CMC栖息地中,有两个存在五种珊瑚。这些珊瑚以Breviolum属的共生藻类为主,这表明这些低光但热变化的环境可能缓冲了附近硬底环境的光抑制压力。进一步调查和监测cmc,特别是在城市环境中,可以为沿海社区生态提供信息,并促进保护和恢复工作。
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引用次数: 0
Recruitment of postlarval spiny lobster, stone crabs, and larval fish to back-reef nursery habitats in the Florida Keys, USA 在美国佛罗里达群岛,刺龙虾、石蟹和鱼类幼虫在礁后苗圃栖息地的招募
IF 1.5 4区 地球科学 Q2 Earth and Planetary Sciences Pub Date : 2023-01-01 DOI: 10.5343/bms.2023.0005
D. Eggleston, S. Searcy, C. Dahlgren, N. Reyns, Taylor A. Shropshire
Back reef areas contain a mosaic of relatively shallow habitats that serve as a key nursery for reef species. Expansive back reef habitats in the lower Florida Keys, USA border the Atlantic Ocean and the Gulf of Mexico. A combination of floating, artificial settlement substrates and plankton nets moored in channels connecting coastal waters and back reef habitats quantified spiny lobster (Panulirus argus) and stone crab (Menippe sp.) settlement, and larval fish ingress, respectively, during 1999 and 2002–2003. The key finding was that channels connecting coastal waters with back reef areas serve as conduits for ingressing larval spiny lobster, stone crabs, and fishes. The results highlight the important role of Atlantic Ocean sources of spiny lobster pueruli and lutjanid fish larvae in this back reef system, and Gulf sources of stone crabs. Spiny lobster settlement generally peaked in August and September and occurred on the Atlantic Ocean side of this back reef system; settlement of stone crabs peaked at the same time as spiny lobster yet occurred predominantly on the Gulf side. Recruitment of larval fish was higher on the Atlantic than Gulf side, with 37% of fish species collected nearly exclusively on the Atlantic side and about 25% collected nearly exclusively on the Gulf side. Channel habitats appear critical to supporting the nursery role of back reef habitats and should receive special consideration in future ecosystem studies, as well as during spatial planning and evaluations of essential fish habitat.
后礁区包含一个相对较浅的栖息地,作为珊瑚礁物种的关键托儿所。广阔的后礁栖息地在佛罗里达群岛下游,美国边界大西洋和墨西哥湾。在1999年和2002-2003年期间,在连接沿海水域和后礁生境的河道中,将漂浮的人工沉降底物和浮游生物网相结合,分别量化了刺龙虾(Panulirus argus)和石蟹(Menippe sp.)的沉降量和幼虫的摄取量。关键的发现是,连接沿海水域和后礁区域的通道是刺龙虾、石蟹和鱼类幼虫进入的通道。研究结果表明,大西洋的棘龙虾和鲁氏鱼幼虫以及海湾的石蟹在该后礁系统中发挥了重要作用。多刺龙虾在8月和9月达到高峰,并出现在该后礁系统的大西洋一侧;石蟹和带刺龙虾在同一时期到达顶峰,但主要出现在海湾一侧。幼鱼在大西洋的捕捞量高于墨西哥湾一侧,其中37%的鱼类几乎完全在大西洋一侧采集,约25%的鱼类几乎完全在墨西哥湾一侧采集。水道生境对支持后礁生境的育婴作用至关重要,在未来的生态系统研究以及基本鱼类生境的空间规划和评价中应得到特别考虑。
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引用次数: 0
Discovery of a new Muraenichthys eel (Anguilliformes: Ophichthidae) from the Bay of Bengal, India, with its molecular characterization 印度孟加拉湾发现一种新的鳗类(鳗目:蛇鳗科)及其分子特征
IF 1.5 4区 地球科学 Q2 Earth and Planetary Sciences Pub Date : 2023-01-01 DOI: 10.5343/bms.2023.0010
A. Mohapatra, R. Behera, D. Ray, Smrutirekha Acharya, S. R. Mohanty, S. S. Mishra
Muraenichthys hibinoi sp. nov. is described herein based on two specimens collected from Shankarpur fishing harbor, West Bengal, India. The new species differs from Muraenichthys gymnopterus, Muraenichthys hattae, Muraenichthys longirostris, and Muraenichthys thompsoni by having less distance between the anus and the origin of dorsal fin (61.8%–57.37% vs 73.8%–82% in HL). The new species has a close morphological affinity with Muraenichthys gymnopterus and Muraenichthys hattae with significant differences from both species. The new species differs from Muraenichthys gymnopterus by having higher vertebral count, i.e., predorsal vertebrae (40–41 vs 30), pre-anal vertebrae (50 vs 43), and total vertebrae (140–141 vs 130). The new species also differs from Muraenichthys hattae, having fewer total vertebrae (141–142 vs 148–155) and fewer pre-dorsal vertebrae (40–41 vs 48–53). The COI gene sequence of the new species has been generated and submitted to the NCBI database with accession numbers OP114397. The new species differs from all the available congeneric sequences for Myrophinae group available in NCBI or BOLD with K2P distances of 8.4% to 9.5%. Thus, both the genetic and morphometric data confirm the presence of a new species in Myrophinae from Indian waters.
本文根据在印度西孟加拉邦尚卡普尔渔港采集的两个标本,描述了Muraenichthys hibinoi sp. 11 .。新种与裸鱼、hattae鱼、longirostris鱼、thompsoni鱼的区别在于肛门与背鳍起源的距离较短(61.8% ~ 57.37%,HL为73.8% ~ 82%)。新种与裸子鱼、hattae鱼形态亲缘关系密切,但差异显著。新物种与裸鱼鱼的不同之处在于其椎骨数量更高,即前背椎骨(40-41对30)、前肛椎骨(50对43)和总椎骨(140-141对130)。新种也不同于Muraenichthys hattae,总椎骨(141-142 vs 148-155)和前背椎骨(40-41 vs 48-53)较少。该新种的COI基因序列已生成并提交至NCBI数据库,登录号为OP114397。该新种与NCBI或BOLD中已有的Myrophinae类群同源序列的K2P距离为8.4% ~ 9.5%。因此,遗传和形态数据都证实了印度水域Myrophinae中存在一个新种。
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引用次数: 0
Observations on the mechanism of egg-capsule deposition in Melongena corona (Mollusca: Gastropoda) based on a time-lapse video 基于延时录像的冠绒蚌(软体动物:腹足目)卵囊沉积机制观察
IF 1.5 4区 地球科学 Q2 Earth and Planetary Sciences Pub Date : 2023-01-01 DOI: 10.5343/bms.2023.0021
Carly Hulse, J. Leal, Joseph R Powell
We present observations on the mechanism of egg-capsule deposition in Melongena corona (Mollusca: Gastropoda) based on a time-lapse video.
我们提出了一种基于延时视频的观察卵膜沉积的机制,在冠Melongena(软体动物:腹足目)。
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引用次数: 0
An Indian Ocean macroalga new to the Atlantic: Halimeda macroloba (Chlorophyta, Halimedaceae) discovered and now established in Biscayne Bay, Florida 大西洋新发现的一种印度洋大藻:大螺帽藻(绿藻,大螺帽藻科)在佛罗里达州比斯坎湾发现并现已建立
IF 1.5 4区 地球科学 Q2 Earth and Planetary Sciences Pub Date : 2023-01-01 DOI: 10.5343/bms.2023.0036
D. Ballantine, Julian Sprung, J. N. Norris
Halimeda macroloba, a large green tropical and semitropical alga, widely distributed in the Indian and Pacific Oceans has been discovered in Biscayne Bay, Florida in the western Atlantic Ocean.
在西大西洋佛罗里达州的比斯坎湾发现了一种广泛分布于印度洋和太平洋的大型热带和亚热带绿色藻类——大叶大halmeda。
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引用次数: 0
Goatfishes (Teleostei: Mullidae) of the Socotra Archipelago: Diversity and distributional biogeography, with a new record of Parupeneus heptacantha (Lacépède, 1802) 索科特拉群岛山羊鱼(Teleostei: Mullidae):多样性和分布生物地理学——附Parupeneus heptacantha新记录(lac<s:1> pides, 1802)
4区 地球科学 Q2 Earth and Planetary Sciences Pub Date : 2023-01-01 DOI: 10.5343/bms.2023.0035
Uwe Zajonz, Sergey V Bogorodsky, Fouad N Saeed, Edouard Lavergne
The diversity of goatfishes from the Socotra Archipelago is documented for the first time. The distributional biogeography of the family in the Arabian region is analyzed and thoroughly discussed in the context of the western Indian Ocean. Twelve species of two genera, Mulloidichthys and Parupeneus , are positively recorded, including a new record for Parupeneus heptacantha . Upeneus heemstra is visually recorded, pending further documentation. The Socotra Archipelago thus hosts 13 of the 31 species found in Arabia. This degree of species richness is comparable to other Arabian ecoregions. With a single species the richness of Upeneus stands out as very low. Biogeographically, three main Arabian units are identified: a “Red Sea unit”, a “Gulf unit”, and a “Socotra unit”. The former two units are strongly characterized by endemics, notably within Upeneus , while there are no species endemic to the latter. The “Socotra unit”, comprising the Socotra Archipelago, eastern Gulf of Aden, and southern Oman, resembles more strongly all sites of the western Indian Ocean than the Arabian sites. The “Gulf unit” is the most distant to all other sites. These units do not cluster to a discrete “pan-Arabian” region within the wider western Indian Ocean. The Mullidae thus strongly contrast overall biogeographic patterns of coastal fishes and reef-building corals, which cumulatively suggest that Arabia forms a discrete biogeographic unit within the Indian Ocean. The study serves further analyses of contrasting biogeographies of major coastal fish families in Arabia, with a focus on the role of the southern Arabian upwelling areas.
索科特拉群岛山羊鱼的多样性首次被记录下来。在西印度洋的背景下,对该科在阿拉伯地区的分布生物地理学进行了分析和深入讨论。已记录有Mulloidichthys和Parupeneus 2属12种,其中Parupeneus七棘鱼(Parupeneus heptacantha)一新记录。Upeneus heemstra被视觉记录,等待进一步的文件。因此,在阿拉伯发现的31种生物中,有13种生活在索科特拉群岛。这种物种丰富程度与阿拉伯其他生态区相当。作为一个单一的物种,乌皮纽斯的丰富度非常低。从生物地理学的角度来看,可以确定三个主要的阿拉伯单元:“红海单元”、“海湾单元”和“索科特拉单元”。前两个单位具有很强的地方性特征,特别是在厄佩内斯,而后者没有特有的物种。“索科特拉单元”由索科特拉群岛、亚丁湾东部和阿曼南部组成,与阿拉伯遗址相比,与西印度洋的所有遗址更相似。“海湾单位”是离所有其他地点最远的。这些单位并没有聚集在更广阔的西印度洋内一个离散的“泛阿拉伯”地区。因此,Mullidae与沿海鱼类和造礁珊瑚的整体生物地理模式形成强烈对比,这些模式累积起来表明阿拉伯在印度洋内形成了一个独立的生物地理单元。该研究进一步分析了阿拉伯主要沿海鱼类科的对比生物地理,重点关注阿拉伯南部上升流地区的作用。
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引用次数: 0
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Bulletin of Marine Science
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