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Registros recuperados: 23
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A new family of brachyuran (Crustacea: Decapoda: Goneplacoidea) from the Eocene of Java, Indonesia Naturalis
Schweitzer, C.E.; Feldmann, R.M.; Bonadio, C..
A new family, Martinocarcinidae, must accommodate the monotypic genus Martinocarcinus Böhm, 1922. The genus displays a unique combination of dorsal, sternal and abdominal characters justifying placement in a new family. The Martinocarcinidae joins several other now extinct Eocene families that flourished at that time, supporting the long-held view that the Eocene was a time of radiation within the Brachyura.
Tipo: Article / Letter to the editor Palavras-chave: Brachyura; Crabs; Paleogene; Pacific; Cenozoic; 42.74.
Ano: 2009 URL: http://www.repository.naturalis.nl/record/301549
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Acoustic behaviours of large crustaceans in NE Atlantic coastal habitats ArchiMer
Coquereau, Laura; Grall, Jacques; Clavier, Jacques; Jolivet, Aurelie; Chauvaud, Laurent.
Although many studies have investigated the benthic environment of temperate marine waters, little is known about the acoustic behaviour of the organisms in these habitats, particularly crustaceans. This study focused on the acoustic behaviour of large crustaceans in NE Atlantic coastal regions. A total of 11 crustacean species were recorded in tank-based experiments to identify sound-producing species and the behaviours associated with their sounds as well as to quantitatively characterise and compare the sounds. A total of 34 sounds were associated with behaviours such as moving, feeding, mandible rubbing, swimming, species-specific behaviour and other unidentified behaviours. The sounds included single pulse and pulse train signals that were distributed...
Tipo: Text Palavras-chave: Acoustic behaviour; Sound library; Crustaceans; Crabs; Snapping shrimps.
Ano: 2016 URL: https://archimer.ifremer.fr/doc/00616/72859/72983.pdf
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Acute and chronic effects of cadmium on blood homeostasis of an estuarine crab, Chasmagnathus granulata, and the modifying effect of salinity BJMBR
Rodríguez,E.M.; Bigi,R.; Medesani,D.A.; Stella,V.S.; Greco,L.S.L.; Moreno,P.A.R.; Monserrat,J.M.; Pellerano,G.N.; Ansaldo,M..
Whole body oxygen consumption and some hemolymph parameters such as pH, partial pressure of gases, level of ions and lactate were measured in the estuarine crab Chasmagnathus granulata after both acute (96 h) and chronic (2 weeks) exposure to cadmium at concentrations ranging from 0.4 to 6.3 mg/l. In all instances, the crabs developed hemolymph acidosis, but no respiratory (increased PCO2) or lactate increases were evident. Hemolymph levels of sodium and calcium were always increased by cadmium exposure. The chronic toxicity of cadmium was enhanced at 12‰ salinity, even causing a significantly higher mortality in comparison with the higher salinity (30‰) used. A general metabolic arrest took place at 12‰ salinity in the crabs chronically exposed to...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Cadmium; Crabs; Blood homeostasis; Salinity.
Ano: 2001 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2001000400011
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Brachyura (Crustacea, Decapoda) associated to Schizoporella unicornis (Bryozoa, Gymnolaemata) in Ubatuba bay (SP), Brazil BABT
Mantelatto,Fernando L. M.; Souza-Carey,Marisa M..
This work characterizes the composition of Brachyura from Schizoporella unicornis. The samples were collected in 1995 at Itaguá Beach, Ubatuba (SP), at three month intervals, during all seasons from January to December. The Bryozoa colonies were obtained by snorkeling at a depth of five meters in daylight. A total of 323 specimens were collected from four families (Xanthidae, Portunidae, Majidae and Grapsidae). Pachygrapsus transversus, Hexapanopeus schimitti, and Menippe nodifrons occurred in all seasons. The highest and lowest number of individuals occurred during the spring and autumn, respectively. Xanthidae exhibited the highest density during the summer, autumn, and spring, while Grapsidae exhibited the highest density in winter. It was noted the...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Brachyuran; Bryozoan; Check list; Crabs; Schyzoporella.
Ano: 1998 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89131998000200007
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Brachyuran crab community structure and associated sediment reworking activities in pioneer and young mangroves of French Guiana, South America ArchiMer
Aschenbroich, Adelaide; Michaud, Emma; Stieglitz, Thomas; Fromard, Francois; Gardel, Antoine; Tavares, Marcos; Thouzeau, Gerard.
This study in French Guiana evaluates the changes of crab assemblages and their bioturbation activities between mangrove early stages (pioneer and young mangrove) and within stages by taking their spatial heterogeneity (tidal channels, flat areas, pools) into account. The results show differences in crab assemblage structure between and within the early stages of mangrove in relation to microhabitat and sediment characteristics. The sediment reworking rates are a function of the biomass or density of particular species (Ucides cordatus, Uca cumulanta) and burrower functional groups. Crab species or functional interaction mediate changes in sediment reworking rates suggesting the need to consider entire benthic communities rather than single species. This...
Tipo: Text Palavras-chave: Mangroves; Crabs; Community composition; Bioturbation; French Guiana; Amazon.
Ano: 2016 URL: https://archimer.ifremer.fr/doc/00350/46154/45852.pdf
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Brood care in Brachyuran crabs: the effect of oxygen provision on reproductive costs RChHN
FERNÁNDEZ,MIRIAM; BRANTE,ANTONIO.
The quantification of the costs associated with parental care of marine invertebrates requires a first and necessary step, which is the identification of the different forms of care exhibited by this group. Among marine invertebrates, provision of oxygen to the aggregation of embryos may be critical, although most evidence on the link between oxygen limitation and parental care is indirect. Species which show active behavior directed at providing oxygen to the brood offer a good model to establish the direct link between behavioural patterns and oxygen provision to the embryos, and to estimate the costs associated with this form of care. In this manuscript, we conducted a review of the current knowledge about oxygen limitation in embryos aggregations of...
Tipo: Journal article Palavras-chave: Reproduction; Brood care; Crabs; Oxygen; Marine invertebrates.
Ano: 2003 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2003000200003
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Crescimento relativo e determinação da idade na fase juvenil de Armases angustipes (Dana) (Decapoda, Brachyura, Grapsidae) Zoologia
Kowalczuk,Vania G.L.; Masunari,Setuko.
The relative growth of the male chelipod and female abdomen of Armases angustipes (Dana, 1852) was studied in order to determine the carapace size of puberty. Also, the age of juvenile crabs in laboratory was established. A total of 537 males and 557 females were analysed and the transition point between mature and immature stages was determined for both sexes. Males attain maturity at 1.00 cm carapace width and females at 1.08 cm. The relative growth of female abdomen was more remarkable than that of the male chelipod, although both are positive allometric. It suggests a greater importance of a large abdomen in females than a strong chelipod in males. Juvenile crabs reared from megalopa stage has five developmental stages before reaching sexual...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Armases angustipes; Crabs; Relative growth; Age determination.
Ano: 2000 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752000000100002
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Crustaceans of the upper Miocene August Town Formation of southeastern Jamaica Naturalis
Collins, J.S.H.; Donovan, S.K.; Stemann, T.A.; Blissett, D.J..
Crustaceans remain poorly known from the Miocene of Jamaica. Herein, we report three species from the upper Miocene August Town Formation of Fowl House Spring, parish of St. Thomas, southeast Jamaica; poorly preserved propodi of a mud shrimp, “Callianassa” sp.; the anterior part of the carapace of Mithraculus sp. aff. Mithraculus coryphe (Herbst); and the cirripede Tetraclita sp. cf. T. stalactifera (Lamarck). Mithraculus sp. aff. M. coryphe at Fowl House Spring considerably extends the stratigraphic occurrence of the genus in the Antillean region down into the Miocene. Hitherto, fossil T. stalactifera in the Caribbean was known from the Plio-Pleistocene of Curaçao and the Pleistocene of Venezuela.
Tipo: Article / Letter to the editor Palavras-chave: Jamaica; Miocene; Barnacles; Cirripedia; Crabs; Decapoda; 38.22.
Ano: 2010 URL: http://www.repository.naturalis.nl/record/361979
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Crustacés profonds capturés aux casiers aux Antilles Françaises ArchiMer
Paulmier, Gerard.
For several years the fishermen of the West Indies have directed their activities towards new fishing grounds, notably the bathyales zones adjacent to island plateaux up to approximately 1000 metres in depth. Explorations earned out since 1989 have shown that diverse crustacean populations could be exploited. However, populations and exploitable stocks arc not well known. The use of crustaceans traps as a fishing technique permits the capture of shellfish, shrimps and prawns of which at least six species could have commercial interest. The main objective of this work is do draw up an inventory of the principal commercial species as well as the accompanying species belonging to the subordres Decapoda macrura, anomura, brachyura, and to the orders Isopoda...
Tipo: Text Palavras-chave: Crabes; Langoustines; Crevettes; Profond; Crustacés; Inventaire; Antilles françaises; Crabs; Prawns; Shrimps; Depth; Crustaceas; Inventory; French Antillean.
Ano: 1993 URL: https://archimer.ifremer.fr/doc/1993/rapport-992.pdf
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Decapod crustaceans from the Neogene of the Caribbean: diversity, distribution and prospectus Naturalis
Collins, J.S.H.; Portell, R.W.; Donovan, S.K..
The Neogene decapod crustaceans are reviewed from Aruba, Bonaire and Curaçao, Anguilla, Barbados, Carriacou, Costa Rica, Cuba, Florida, Hispaniola (Haiti and Dominican Republic), Jamaica, Mexico, Panama, Puerto Rico, St. Kitts, Tintamare Island, Trinidad and Venezuela. The most widely distributed taxa, both stratigraphically and geographically, are callianassids and Calappa (both with easily identifiable dactyli), and portunids. The latter include eleven genera in the study area; of these, Callinectes, Euphylax and Portunus are known from the Miocene, Pliocene and Pleistocene of the Caribbean. The two occurrences of scleractinian-inhabiting crab faunas, the Lower Miocene Montpelier Formation of Jamaica and the Pleistocene Coral Rock of Barbados, show...
Tipo: Article / Letter to the editor Palavras-chave: Neogene; Caribbean; Crustacea; Decapoda; Crabs; Systematics; Biogeography; 42.74.
Ano: 2009 URL: http://www.repository.naturalis.nl/record/301552
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Developmental origins of normal and anomalous random right-left asymmetry: lateral inhibition versus developmental error in a threshold trait Naturalis
Palmer, A.R..
Dramatic examples of right-left asymmetry often inspire adaptive explanations, simply because it is hard to imagine how such forms could not be functionally significant. But are conspicuous morphological asymmetries necessarily adaptive? Surprisingly, in some species where direction of asymmetry is random, asymmetry in bilaterally paired traits may arise as a developmental error in a threshold trait. When cases of asymmetry are rare within a species, they are easily recognized as developmental errors. However, as asymmetrical individuals become more common, or if the asymmetry is in a signaling trait, the temptation to advance an adaptive explanation grows, particularly if the asymmetry is not clearly maladaptive. Several models of the ontogeny of...
Tipo: Article / Letter to the editor Palavras-chave: Acari; Adaptive significance; Crabs; Crustacea; Developmental models; Diptera; Flies; Hemiptera; Insecta; Lobsters; Mites; Morphological asymmetry; Polyphenism; Shrimp; Stochastic development; True bugs; 42.21.
Ano: 2012 URL: http://www.repository.naturalis.nl/record/419175
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Effects of Heavy Metal and Pollutants on the Non-special Immunity of the Shrimp and Crab. OceanDocs
Ai, Chunxiang; Wang, Xiaojuan; Li, Shaojing; Wang, Guizhong; Lin, Qiongwu.
This paper attempted to review and evaluate existing information about the effects of heavy metal,ammonia-N,nitrite and the organic pollutants on the non-special immune response of the shrimp and crab, which providing theory for improving the self-immunity of shrimp and crab by meliorating cultural environment. In addition, it could provide information for further study on this field.
Tipo: Journal Contribution Palavras-chave: Immune response; Heavy metals; Pollutants; Crabs; Prawns and shrimps.
Ano: 2008 URL: http://hdl.handle.net/1834/5871
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Estrutura populacional de Armases angustipes (Dana) (Decapoda, Brachyura, Grapsidae) na Ilha do Farol, Matinhos, Paraná Zoologia
Kowalczuk,Vânia G.L.; Masunari,Setuko.
Annual fluetuation of densities and population strueture of Armases angustipes (Dana, 1852) from a rocky shore at Farol Island, Matinhos, Paraná, Brazil (25º51'S and 48º32'W) were studied. The population strueture was treated in the following aspects: sexual proportion, dial intensity of activities, size composition and its fluetuation, and general condition of the crabs. The collections were made monthly, from January to December 1991. The samples were obtained handly, in the morning and at night, at the supratidal zone during low tides. There were caught 1,139 crabs, among which 34 were juveniles, 544 males, 555 females and 4 ovigerous females. Population density was highest in April (19.56 ind.m"² ) and in October (23.86 ind.m"² ). The sexual proportion...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Armases angustipes; Crabs; Population strueture; Rocky shore; Matinhos; Brazil.
Ano: 2000 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752000000100001
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Latitudinal comparisons of reproductive traits in five Brachyuran species along the Chilean coast RChHN
BRANTE,ANTONIO; CIFUENTES,SANDRA; PÖRTNER,HANS-OTTO; ARNTZ,WOLF; FERNÁNDEZ,MIRIAM.
Understanding large-scale patterns in reproductive investment and fecundity of marine invertebrates is important for determining the critical environmental variables affecting reproduction and thus, the spatial patterns of population dynamics. However, information on patterns of reproduction of marine invertebrates at large spatial scales are either scarce, or have been conducted by mixing species with contrasting modes of development. Brachyuran crabs are an ideal group to analyze large-scale patterns of reproduction not only because many species are commercially exploited, but also because they show a single mode of larval development and wide distributional ranges. Here, we report latitudinal patterns of reproductive variables in five Brachyuran crab...
Tipo: Journal article Palavras-chave: Reproductive investment; Fecundity; Brooding; Crabs; Embryo loss.
Ano: 2004 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2004000100003
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Latitudinal thermal gradient effect on the cost of living of the intertidal porcelain crab Petrolisthes granulosus ArchiMer
Monaco, Cristian; Brokordt, Katherina B.; Gaymer, Carlos F..
Species with wide latitudinal distributions are exposed to significant abiotic gradients throughout their geographic range. Thermal gradients are especially important for ectothermic species inhabiting the intertidal zone because they affect their life history traits and fitness. In order to identify the role of latitudinal thermal gradients (specifically the exposition to different thermal maximums) in the cost of living of intertidal crustaceans, we compared specific fitness-related traits, such as body size and reproductive capacity (reproductive output, size at onset of sexual maturity and egg volume) in Petrolisthes granulosus individuals from 3 sites across an extensive latitudinal gradient (covering similar to 50% of its total distributional range):...
Tipo: Text Palavras-chave: Cost of living; Latitudinal thermal gradient; Body size; Reproductive capacity; Metabolic rate; Crabs; Petrolisthes granulosus; Rocky intertidal.
Ano: 2010 URL: https://archimer.ifremer.fr/doc/00605/71701/70147.pdf
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Le crabe profond Geryon maritae de Mauritanie : Possibilité d'exploitation des stocks OceanDocs
Diop, M.; Kojemiakine, A..
Résumé : En 15 jours de pêche expérimentale, un caseyeur japonais a pêché près de 40.000 kg de crabe profond (Geryon maritae) représentant 12.032 kg de produit fini sous forme de farcis et pattes. Le rapport Capture/Produit fini a été estimé à 3, et celui de Poids total du crabe/Poids des pattes à environ 1,7.
Tipo: Journal Contribution Palavras-chave: Potential resources; Weight-length relationships; Crab culture; Crabs; Http://aims.fao.org/aos/agrovoc/c_1942.
Ano: 1995 URL: http://hdl.handle.net/1834/253
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Marine crustacean farming: present status and perspectives ArchiMer
Laubier, Annie; Laubier, Lucien.
For centuries, several species of prawns and crabs have been raised from wild-caught juveniles in coastal brackish-water fish ponds in various countries of south east Asia. The Indonesian "tambaks" are well known examples of such traditional practices. In western countries, since the turn of the century, advances of marine biology and fast increase of marine fisheries enabled the development of large-scale production and release of larval stages of American and European lobsters in a fruitless attempt to restock natural populations. After the Second World War, the increasing demand for crustaceans in United States and Japan was satisfied by opening new prawn fisheries all over the world. A major breakthrough was achieved with the development of hatchery...
Tipo: Text Palavras-chave: Crustacés; Crevettes; Crabes; Homards; Aquaculture; Exploitation; Penaeidae; Crustaceans; Shrimps; Prawns; Crabs; Lobsters; Aquaculture; Exploitation; Penaeidae.
Ano: 1993 URL: http://archimer.ifremer.fr/doc/00190/30119/28587.pdf
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[Proceedings of the 5th Symposium on Mesozoic and Cenozoic Decapod Crustaceans, Krakow, Poland, 2013: A tribute to Pál Mihály Müller / R.H.B. Fraaije, M. Hyžný, J.W.M. Jagt, M. Krobicki & B.W.M. van Bakel (eds.)]: Neozanthopsis americana (Decapoda, Brachyura, Carpilioidea) from the Middle Eocene Cane River Formation of Louisiana, USA, and associated teleost otoliths Naturalis
Schweitzer, C.E.; Feldmann, R.M.; Stringer, G.L..
A large collection of Neozanthopsis americana (Rathbun, 1928) from the Middle Eocene (Lutetian) Cane River Formation in Louisiana, USA, represents the first opportunity to describe the species in detail. Detailed analysis of associated teleost otoliths and other vertebrate remains documents a palaeoenvironmental setting characterised by a soft-sediment, inner-shelf setting with normal salinity under tropical or subtropical conditions. Anatomical and morphometric analysis of 21 of the better-preserved crabs demonstrates that gender discrimination cannot be made from dorsal carapace characteristics and that the sample represents post-juvenile individuals. Exocuticle and endocuticle are preserved on some specimens and document the presence of erect...
Tipo: Article / Letter to the editor Palavras-chave: Crabs; Paleogene; Lutetian; Bony fish; Palaeoenvironment; Taphonomy; 42.74; 38.22.
Ano: 2014 URL: http://www.repository.naturalis.nl/record/523038
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[Proceedings of the 5th Symposium on Mesozoic and Cenozoic Decapod Crustaceans, Krakow, Poland, 2013: A tribute to Pál Mihály Müller / R.H.B. Fraaije, M. Hyžný, J.W.M. Jagt, M. Krobicki & B.W.M. van Bakel (eds.)]: Some decapods (Crustacea; Brachyura and Stomatopoda) from the Pleistocene Beaumont Formation of Galveston, Texas Naturalis
Collins, J.S.H.; Garvie, C.L.; Mellish, C.J.T..
Seven species of crab and an indeterminate stomatopod are recorded from the Pleistocene Beaumont Formation of Galveston Island, Texas. Of these, Hepatus pauli sp. nov., plus the extant Persephona aquilonaris and Callinectes danae are recorded as fossils for the first time, whereas the modern Callinectes sapidus and Menippe mercinaria had already been recorded from Miocene and/or Pleistocene strata in the Caribbean. A new description is given for Herbstia milnei, founded on better-preserved specimens, and the species is transferred to the genus Libinia. An unnamed species is tentatively placed in the extant Indo-Pacific genus Dromidiopsis; likewise unnamed, a fragmentary abdomen is assigned to the Stomatopoda.
Tipo: Article / Letter to the editor Palavras-chave: Crabs; Mantis shrimp; New records; New species; Gulf Coast; 42.74; 38.22.
Ano: 2014 URL: http://www.repository.naturalis.nl/record/523861
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Relative growth, sexual dimorphism and morphometric maturity of Trichodactylus fluviatilis (Decapoda: Brachyura: Trichodactylidae) from Santa Terezinha, Bahia, Brazil Rev. Bras. Zool.
Silva,Tiago Rozário da; Rocha,Sérgio Schwarz da; Costa Neto,Eraldo Medeiros.
Freshwater crabs are important elements in the aquatic biota of brooks, rivers, lakes and ponds, from both ecological and the socio-economic aspects. Trichodactylidae comprises 51 endemic species from the Neotropical region. Among all the species of this family, Trichodactylus fluviatilis Latreille, 1828 has the widest geographic distribution throughout Brazil. Despite that, there are few published contributions on the biology of this species. The present study investigated the following aspects of T. fluviatilis: relative growth, mean size at onset of morphometric maturity, sexual dimorphism, laterality and heterochely. Specimens were collected monthly from September 2010 through August 2011, from the Velha Eugênia Brook, municipality of Santa Teresinha,...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Allometry; Chelipeds; Crabs; Maturity size; Serra da Jibóia.
Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702014000100003
Registros recuperados: 23
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