The first record of egg masses in tunicates deposited by the snubnose sculpin, Orthonopias triacis , from the Northeastern Pacific: evidence for convergent evolution of an unusual reproductive strategy

2021 ◽  
Author(s):  
Satoshi Awata ◽  
Takeshi Ito ◽  
Karen D. Crow ◽  
Yasunori Koya ◽  
Hiroyuki Munehara
Keyword(s):  
Reproductive Strategy ◽  
Convergent Evolution ◽  
First Record ◽  
Egg Masses ◽  
Northeastern Pacific

scholarly journals New terpenoid metabolites from the skin extracts, an egg mass, and dietary sponges of the Northeastern Pacific dorid nudibranch Cadlinaluteomarginata

1997 ◽  
Vol 75 (6) ◽  
pp. 773-789 ◽  
Author(s):  
Eric J. Dumdei ◽  
Julia Kubanek ◽  
John E. Coleman ◽  
Jana Pika ◽  
Raymond J. Andersen ◽  
...  
Keyword(s):  
Structure Elucidation ◽  
Egg Mass ◽  
The Novel ◽  
Egg Masses ◽  
Northeastern Pacific ◽  
First Time

Chemical investigations of Cadlinaluteomarginata skin extracts, egg masses, and dietary sponges have led to the identification of the novel terpenoids cadlinaldehyde (30), spongian 32, seco-spongian 35, 20-acetoxy-12-marginatone (38), and lutenolide (39) from the nudibranch skin extracts, the new drimane sesquiterpenoid 1α,2α-diacetoxyalbicanyl acetate (40) from the nudibranch's egg mass, and the new sesquiterpenoids O-methyl-9-oxofurodysininlactone (47), 2-oxomicro-cionin-2-lactone (48), and O-methyl-2-oxomicrocionin-2-lactone (49), from the dietary sponge Pleraplysilla sp. The known terpenoids furodysinin (1), furodysin (16), marginatafuran (21), and 9,11-dihydrogracillin A (37), which have been frequently isolated from C. luteomarginata skin extracts, were found for the first time in extracts of the dietary sponges Pleraplysilla sp. and Aplysilla sp. One of the new terpenoids, cadlinaldehyde (30), has an unprecedented degraded sesterterpenoid skeleton. Keywords: nudibranch, sponge, terpenoids, structure elucidation.

scholarly journals First report of the invasive golden apple snail, Pomacea canaliculata in Kenya.

2020 ◽  
Author(s):  
Alan G. Buddie ◽  
Ivan Rwomushana ◽  
Lisa C. Offord ◽  
Simeon Kibet ◽  
Fernadis Makale ◽  
...  
Keyword(s):  
Molecular Identification ◽  
First Record ◽  
Crop Damage ◽  
Pomacea Canaliculata ◽  
Apple Snail ◽  
Egg Masses ◽  
Golden Apple Snail ◽  
The Uk ◽  
The Impact ◽  
Established Population

Abstract Following reports of an invasive snail causing crop damage in the expansive Mwea irrigation scheme in Kenya, samples of snails and associated egg masses were collected and sent to CABI laboratories in the UK for molecular identification. DNA barcoding analyses using the cytochrome oxidase subunit I gene confirmed the identity of the snails as Pomacea canaliculata, widely considered to be one of the most invasive invertebrates of waterways and irrigation systems worldwide. To the best of our knowledge, this is the first record of P. canaliculata in Kenya, and the first confirmed record of an established population in continental Africa. This timely identification shows the benefit of molecular identification when combined with a reliable database such as that provided by the Barcoding of Life Data system. We found that the egg masses tested gave an identical barcode sequence to the adult snails, allowing identifications to be made more rapidly. Given the impact of this species in Asia, there is need for an assessment of the risk to Africa, and the implementation of an appropriate response in Kenya and elsewhere to manage this new threat to agriculture and the environment.

Phenology and Parasitism of Harlequin Bugs, Murgantia histrionica (Hahn) (Hemiptera: Pentatomidae), in Southwest Virginia

1998 ◽  
Vol 33 (1) ◽  
pp. 33-39 ◽  
Author(s):  
S. W. Ludwig ◽  
L. T. Kok
Keyword(s):  
First Generation ◽  
First Record ◽  
Early Spring ◽  
Cultivated Plants ◽  
Third Generation ◽  
Subsequent Generation ◽  
Egg Masses ◽  
Naturally Occurring ◽  
Murgantia Histrionica ◽  
Field Plots

Field plots containing broccoli, mustard, and rape were sampled weekly between June and October in 1994 and 1995 to determine parasitism and phenology of the harlequin bug, Murgantia histrionica (Hahn) (Hemiptera: Pentatomidae). Naturally-occurring wild turnips also were sampled in early spring 1995 for harlequin bugs before cultivated crops were planted. Weekly samples of harlequin bug adults, egg masses, and nymphs were field collected and returned to the laboratory. They were maintained in the laboratory until emergence to recover parasitoids and to determine the parasitization rates. No adult or nymphal parasitoids were recovered. Two species, Trissolcus murgantiae Ashmead (Hymenoptera: Scelionidae) and Ooencyrtus johnsoni Howard (Hymenoptera: Encyrtidae), were identified as egg parasitoids. The overall parasitization rates for 1994 and 1995 were 8% and 37%, respectively. Trissolcus murgantiae was more common than O. johnsoni and accounted for 87% and 96% of the parasitization, respectively. This is the first record of T. murgantiae in Virginia. The harlequin bugs had two and a partial third generation a year. Overwintered adults oviposited on wild turnips, where the first generation completed development. The subsequent generation migrated to cultivated plants in June and July. The second generation completed development on cultivated crops producing the adults which overwinter.

First record of Gagea szovitsii in Central Europe

Biologia ◽  
2011 ◽  
Vol 66 (3) ◽  
Author(s):  
Gusztáv Jakab ◽  
Attila Molnár V
Keyword(s):  
Environmental History ◽  
Central Europe ◽  
Reproductive Strategy ◽  
Vascular Plant ◽  
First Record ◽  
Morphological Characters ◽  
Original Illustrations ◽  
History Of ◽  
The Difference ◽  
Hungarian Plain

AbstractMorphological characters, habitat preference, and currently known distribution of the species Gagea szovitsii (A.F. Láng) Besser, a new indigenous vascular plant species of Central Europe, are presented. The plant was found in alkali grasslands of the south-eastern part of the Great Hungarian Plain (SE Hungary). Currently, this can be regarded to the westernmost occurrence of this pontic species. Both G. szovitsii and its closest relative G. bohemica are briefly characterized here with respect to their identification, ecology and distribution. Original illustrations on G. szovitsii are presented. The paper firstly emphasizes the difference of reproductive strategy between G. szovitsii and G. bohemica; the former reproduce itself primarily sexually via seeds, while the latter reproduce itself in asexual way principally by bulbils. Taking the paleo-environmental history of its habitat into consideration, the species can be regarded as an ancient, indigenous Pontic-Pannonian steppe element of Hungary.

scholarly journals First record of egg sac predation of the fly Pseudogaurax cingulatus Sabrosky (Diptera, Chloropidae) upon spider Tetragnatha sp. (Araneae, Tetragnathidae) in northern Brazil

2021 ◽  
Vol 61 ◽  
pp. e20216104
Author(s):  
Paula Raile Riccardi ◽  
Diego Galvão de Pádua
Keyword(s):  
Digital Images ◽  
Feeding Habits ◽  
First Record ◽  
Neotropical Region ◽  
Distribution Map ◽  
Egg Masses ◽  
Northern Brazil ◽  
First Time

Pseudogaurax Malloch is a worldwide genus of Chloropidae with 33 species in the Neotropical region and 12 occurring in Brazil. The genus is well-known for the feeding habits of its larvae which attack egg masses and larvae of several arthropods, usually breeding in the egg sacs of spiders. In this study, we expanded the distribution of P. cingulatus to northern Brazil and recorded for the first time the species preying on Tetragnatha egg sacs. In addition, diagnosis, digital images and a distribution map are provided.

scholarly journals First record of planktonic egg masses of the diamond squid, Thysanoteuthis rhombus Troschel, in the Sea of Japan

2006 ◽  
Vol 1 (1) ◽  
pp. 59-63 ◽  
Author(s):  
Kazutaka Miyahara ◽  
Katsuya Fukui ◽  
Tatsuaki Nagahama ◽  
Tetsuya Ohatani
Keyword(s):  
Sea Of Japan ◽  
First Record ◽  
The Sea Of Japan ◽  
Egg Masses

scholarly journals Choniomyzon taiwanensis n. sp. (Crustacea: Copepoda: Nicothoidae) Parasitic on the External Egg Mass of the Longlegged Spiny Lobster Panulirus longipes longipes (Crustacea: Decapoda: Palinuridae) from Taiwanese Waters

Animals ◽  
2021 ◽  
Vol 11 (8) ◽  
pp. 2475
Author(s):  
Yu-Rong Cheng ◽  
Kaori Wakabayashi ◽  
Yen-Ju Pan
Keyword(s):  
New Species ◽  
Host Preference ◽  
Spiny Lobster ◽  
First Record ◽  
Morphological Features ◽  
Egg Mass ◽  
Egg Masses ◽  
A New Species

Choniomyzon taiwanensis n. sp. is described based on specimens collected from examining external egg masses of spiny lobster Panulirus longipes longipes (Milne-Edwards, 1868), obtained from Hualien, Taiwan. The new species differs from its congeners in possessing the following characteristics: (1) small prosome (about 0.84 mm); (2) armature of antennule being 1, 1, 2, 2, 1, 1, 1, 2, 1, 1+1 (aesthetasc), 4, 6+1 (aesthetasc); (3) five-segmented antenna; (4) second segment of antenna bearing 1 inner seta; (5) two-segmented maxilla. Based on the evidence of distinctive morphological features and host preference, Choniomyzon taiwanensis n. sp. is a new species. Until now, four species of Choniomyzon have been known living on decapods, and the new species reported here is the first record of Choniomyzon species from spiny lobster in Taiwanese waters.

Cephalopods from the late Eocene Hoko River Formation, northwestern Washington

1988 ◽  
Vol 62 (01) ◽  
pp. 76-82 ◽  
Author(s):  
Richard L. Squires
Keyword(s):  
New Jersey ◽  
North American ◽  
Coastal Area ◽  
Middle Eocene ◽  
First Record ◽  
Late Eocene ◽  
Olympic Peninsula ◽  
Submarine Fan ◽  
Northeastern Pacific ◽  
Northeastern Mexico

Rare specimens of the nautiloidsNautilusandAturiaand extremely rare specimens of a sepiamorph sepiid are described from the late Eocene Hoko River Formation, northern Olympic Peninsula, Washington. The well-preserved partial phragmocones are from channel-fill clastics deposited on the inner and middle slopes of a submarine-fan system.TheNautilusspecimen is allied toN. cookanumWhitfield from middle Eocene strata, New Jersey, and is probably conspecific withNautilussp. (Miller) from late Eocene strata, northwestern Oregon, both of which were previously assigned toEutrephoceras.This is the first record ofNautilusin the northeastern Pacific.TheAturiaspecimen is tentatively identified asA.cf.A. alabamensis(Morton), a species previously only known from late Eocene strata in the Atlantic-Gulf Coastal area and northeastern Mexico.Aturia alabamensismay be the same as numerous Eocene North American aturiid species.The two sepiamorph sepiid specimens resembleBelosepiaVoltz but are probably generically distinct. They are only the second record of sepiids in the Eocene of the northeastern Pacific.

Cephalopods from the late Eocene Hoko River Formation, northwestern Washington

1988 ◽  
Vol 62 (1) ◽  
pp. 76-82 ◽  
Author(s):  
Richard L. Squires
Keyword(s):  
New Jersey ◽  
North American ◽  
Coastal Area ◽  
Middle Eocene ◽  
First Record ◽  
Late Eocene ◽  
Olympic Peninsula ◽  
Submarine Fan ◽  
Northeastern Pacific ◽  
Northeastern Mexico

Rare specimens of the nautiloidsNautilusandAturiaand extremely rare specimens of a sepiamorph sepiid are described from the late Eocene Hoko River Formation, northern Olympic Peninsula, Washington. The well-preserved partial phragmocones are from channel-fill clastics deposited on the inner and middle slopes of a submarine-fan system.TheNautilusspecimen is allied toN. cookanumWhitfield from middle Eocene strata, New Jersey, and is probably conspecific withNautilussp. (Miller) from late Eocene strata, northwestern Oregon, both of which were previously assigned toEutrephoceras.This is the first record ofNautilusin the northeastern Pacific.TheAturiaspecimen is tentatively identified asA.cf.A. alabamensis(Morton), a species previously only known from late Eocene strata in the Atlantic-Gulf Coastal area and northeastern Mexico.Aturia alabamensismay be the same as numerous Eocene North American aturiid species.The two sepiamorph sepiid specimens resembleBelosepiaVoltz but are probably generically distinct. They are only the second record of sepiids in the Eocene of the northeastern Pacific.

Was That Cheating? Perceptions Vary by Type of Behavior and Reproductive Strategy

2010 ◽  
Author(s):  
Daniel J. Kruger ◽  
Maryanne Fisher ◽  
Sarah L. Strout ◽  
Carey Fitzgerald
Keyword(s):  
Reproductive Strategy ◽  
Type Of Behavior
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