Life history matters: comparisons of population structuring in sympatric octopus species that differ in the presence of a pelagic larval stage

2013 ◽  
Vol 486 ◽  
pp. 203-212 ◽  
Author(s):  
KL Higgins ◽  
JM Semmens ◽  
ZA Doubleday ◽  
CP Burridge
Keyword(s):  
Life History ◽  
Larval Stage ◽  
Population Structuring ◽  
Pelagic Larval Stage

scholarly journals The Later Larval Life of Arenicola Marina L

1949 ◽  
Vol 28 (3) ◽  
pp. 635-639 ◽  
Author(s):  
G. E. Newell
Keyword(s):  
Life History ◽  
Larval Stage ◽  
Larval Life ◽  
Arenicola Marina ◽  
Pelagic Larval Stage ◽  
New Habitats

Larvae with three and four chaetigerous segments and also an early post-larval stage of Arenicola marina are described with figures. These are all bottomdwelling stages enclosed in mucous tubes and were collected from the pebble and Fucus zone at Whitstable.The rinding of these larvae furnishes additional evidence for the view that, except when migrating in the water to new habitats, the lugworm possesses no pelagic larval stage in its life history.

scholarly journals The breeding and development of the ascidian Pelonaia corrugata Forbes and Goodsir

1954 ◽  
Vol 33 (3) ◽  
pp. 681-687 ◽  
Author(s):  
R. H. Millar
Keyword(s):  
Larval Stage ◽  
The Other ◽  
Early Cleavage ◽  
Pelagic Larval Stage

SummaryPelonaia corrugata in the Firth of Clyde breeds for only 2–4 weeks in January or February. The species is oviparous. Early cleavage is similar to that of other ascidians, but after gastrulation the embryo passes through a two-hemisphere stage. One of these hemispheres is endodermal. From the other hemisphere, which slowly envelops the endoderm, two ampullae grow and fix the embryo to the substratum. The young ascidian develops directly from this attached embryo, and the development is therefore anural. Elimination of the pelagic larval stage is regarded as an adaptation to the sand-dwelling habit of the adult, as it prevents dispersal to unsuitable habitats.

LIFE HISTORY STUDIES OF THE TOBACCO FLEA BEETLE, EPITRIX HIRTIPENNIS (MELSHEIMER) (COLEOPTERA: CHRYSOMELIDAE)

1987 ◽  
Vol 22 (3) ◽  
pp. 237-244 ◽  
Author(s):  
W. Davis Martin ◽  
G. A. Herzog
Keyword(s):  
Life History ◽  
Larval Stage ◽  
Flea Beetle ◽  
Pupal Stage ◽  
Adult Emergence ◽  
Adult Longevity ◽  
Male And Female ◽  
Controlled Conditions ◽  
History Of ◽  
The Mean

The life history of the tobacco flea beetle, Epitrix hirtipennis (Melsheimer) (= Epitrix parvula Fab.) was studied under the controlled conditions of 27 ± 2.8°C, 80 ± 6% and a 14L:10D photophase. Eggs matured in ca. 4 days, the larval stage, including 3 instars, developed in 13 days, prepupal development took 3 days and the pupal stage lasted approximately 5 days. There was a 24 day interval between oviposition and adult emergence. Females laid 3.1 eggs/day with a 13 day period between adult emergence and first oviposition. The mean number of total eggs/female was 138.6 ± 14.7. Female oviposition continued until a few days before death and adult longevity was approximately 70 days. A visual means of distinguishing between male and female beetles was also developed.

NOTES ON THE LIFE HISTORY OF ECPANTHERIA SCRIBONIA, STOLL

1891 ◽  
Vol 23 (5) ◽  
pp. 106-108
Author(s):  
Harrison. G. Dyar
Keyword(s):  
Life History ◽  
Larval Stage ◽  
History Of ◽  
Southern Florida

The preparatory stages of this species do not seem to have been described. Mr. Hy. Edwards in his catalogue gives eleven references, but in none is the egg mentioned, or any but a single larval stage, and in only one the pupa. It will, therefore, not be amiss to briefly describe the several stages here. I would like first to call attention to the remarkable fertility of the insect in question, at least in Southern Florida where I met with it.

THE LIFE HISTORY OF THE CARROT WEEVIL, LISTRONOTUS OREGONENSIS (COLEOPTERA: CURCULIONIDAE) UNDER CONTROLLED CONDITIONS

1976 ◽  
Vol 108 (9) ◽  
pp. 931-934 ◽  
Author(s):  
P. Martel ◽  
H. J. Svec ◽  
C. R. Harris
Keyword(s):  
Life History ◽  
Life Cycle ◽  
Larval Stage ◽  
Egg Production ◽  
Laboratory Studies ◽  
Preoviposition Period ◽  
Complete Life Cycle ◽  
History Of ◽  
Listronotus Oregonensis ◽  
Carrot Weevil

AbstractLaboratory studies on the biology of the carrot weevil, Listronotus oregonensis (LeConte), were performed at 21° and 27 °C. At 21 °C females laid eggs for 88 days on carrot slices and 94 days on foliage. Egg production per female averaged 156 and 175 on slices and leaves respectively. Eggs hatched after 8.3 days incubation and the larval stage comprising four instars was completed in 19.1 days. The prepupal and pupal stages lasted 3.7 and 9.4 days respectively. The complete life cycle including an average preoviposition period of 17 days was 57.6 days. Development was more rapid at 27 °C, with the complete life cycle taking only 37 days.

scholarly journals Notes on two rare species of brachyuran crabs (families Matutidae and Parthenopidae) from Indonesian waters with new distribution records

2021 ◽  
Author(s):  
Nisfa Hanim ◽  
Ali Suman ◽  
Duranta Diandria Kembaren ◽  
Dyah Perwitasari ◽  
Yusli Wardiatno ◽  
...  
Keyword(s):  
Larval Stage ◽  
Rare Species ◽  
New Record ◽  
Marine Fisheries ◽  
Sea Current ◽  
Arafura Sea ◽  
Brachyuran Crabs ◽  
Malacca Strait ◽  
New Distribution ◽  
Pelagic Larval Stage

This research aimed to report two species of Brachyuran crabs that were found rarely from Indonesian waters. The latest report was more than one hundred years ago, and the study from Indonesia before was not so clear, both information about specimens and location details. We conducted our study in Southern Aru Island and Malacca Strait using trawl during the cruise research which was held by the Research Institute for Marine Fisheries, Ministry of Marine Affairs and Fisheries. Our findings were Izanami reticulata, New Record (family Matutidae) from Southern Aru Island, and Cryptopodia fornicata (family Parthenopidae) from Malacca Strait. The two locations are located close to the location where the species was found in previous studies, namely the Arafura Sea which is adjacent to the Aru Islands, and the Malacca Strait which is adjacent to Borneo. We suspect that the presence of these two species in western and eastern Indonesia was due to their distribution during the pelagic larval stage through the sea current. This article also provided the specific habitat for both species which has not been stated. In addition, this article will contribute to strengthening Indonesia as a mega biodiversity country with initiate compiling the database of Brachyura in Indonesian waters.

STUDIES IN THE LIFE HISTORY OF TRACHYKELE BLONDELI MARSEUL

1932 ◽  
Vol 64 (8) ◽  
pp. 189-191
Author(s):  
Geo. R. Hopping
Keyword(s):  
British Columbia ◽  
Life History ◽  
Larval Stage ◽  
Red Cedar ◽  
History Of ◽  
Cheese Cloth

In connection with studies on the biology of T. blondeli, condnctec in the years 1926 to 1930 inclusive, at Pender Harbour, British Columbia, red cedar trees were inclosed in cheese-cloth cages with a view to determining the duration of the larval stage. The cages were constructed prior to April 30, 1926, and the emergence of bettles from the trees was recorded.

Studies in Embryonic and Larval Development in Amphibia

Development ◽  
1959 ◽  
Vol 7 (1) ◽  
pp. 22-38
Author(s):  
Arthur Hughes
Keyword(s):  
Life History ◽  
Larval Development ◽  
Larval Stage ◽  
Open Water ◽  
Evolutionary Trend ◽  
Phases Of Development ◽  
The Caribbean ◽  
Indian Frog ◽  
Early Phases ◽  
Embryonic And Larval Development

Among the Amphibia there are numerous examples of the suppression to a varying extent of a larval stage in the life-history. In such instances the animal is freed by various means from the necessity of passing its early phases of development in open water. This evolutionary trend has nowhere proceeded further than in the Anuran genus Eleutherodactylus, which is distributed through the Caribbean and the adjacent mainlands. In Eleutherodactylus, development is direct and wholly embryonic, and many larval features have been suppressed. In 1871 was published the first description of a West Indian frog which laid eggs in air, and from which young frogs with fully formed limbs were hatched (Bello y Espinosa, 1871). Since that time some twenty papers have been published on the embryology of different species of the genus, mainly in recent years by Dr. W. Gardner Lynn and his collaborators.

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