Setting Up Traceability Tools for the Indonesian Blue Swimming Crab Fishery: A Case Study in Southeast Sulawesi

Teknik Pemeliharaan Benih Rajungan (Portunus pelagicus Linn.) Di Balai Besar Pengembangan Budidaya Air Payau Jepara Kabupaten Jepara Propinsi Jawa Tengah [Rearing Technique Of Blue Swimming Crab (Portunus pelagicus Linn.) Fry At Brackish Water Culture Development Centre Of Jepara, Jepara Regency And Central Java Province]

Jurnal Ilmiah Perikanan dan Kelautan ◽

10.20473/jipk.v2i1.11672 ◽

2019 ◽

Vol 2 (1) ◽

pp. 87

Author(s):

Juwita Tri Hermawar Yus Tanti, Laksmi Sulwartiwi

Keyword(s):

Brackish Water ◽

Stocking Density ◽

Swimming Crab ◽

Brood Stock ◽

Portunus Pelagicus ◽

Water Culture ◽

Central Java ◽

Culture Development ◽

Development Center

AbstractBlue swimming crab is one of fishery commodity for export that still depend from captured, so it will affect population in wild. One of effort to prevent of crab exinction by hatchery advanced. Inhibition of blue swimming crab was survival rate that low, so it was needed case study about rearing technique of blue swimming crab fry. The aim of this case study was to know directly about rearing technique of blue swimming crab fry and problem that emerged in rearing of blue swimming crab fry. This case study was done at Brackish water Culture Development Center of Jepara, Jepara Regency and Central Java of Province on August 1-30, 2005. Work method which used in case study was descriptive by data collection consisted primary and secondary data. Collection data were done by active participation, interview, observation and study literature. Fry was produced from brood stock of egg maturation stage III which came from wild. Activities of rearing fry consisted preparing of rearing pond, stocking density, food feeding, monitoring of water qualities, pest and disease ocontrol and also harvesting. Water qualities measured were salinity 28-32 ppt and water temperature 29-32C. stocking densities were >100 inds/lt with survival rates were 1,3-3,8%. During rearing, fry was given natural feeds such as Chlorella vulgaris, Brachionus plicatilis, Artemia salina, commercial food merk Frippak and grinding shrimp. In this rearing was found red fungi and controlled by using Erythromycin 1ppm. Harvesting was done after fry 18-days age and was done stocking in nursery pond at Brackish water Culture Development Center of Jepara. Conclusion of this case study were rearing technique of blue swimming crab fry consisted brood stock maintenance, fry rearing system, stocking density, monitoring of water qualities, pest and disease control and also harvesting. Challenge in blue swimming crab with steady system were greatly density, plankton die-off, red fungi and also cannibalism that caused blue swimming crab mortalities.

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The Genesis and Internal Dynamics of El Salvador's People's Revolutionary Army, 1970–1976

Behavioral and Brain Sciences ◽

10.1017/s0140525x13009850 ◽

2014 ◽

Vol 38 (01) ◽

pp. 102-129

Author(s):

ALBERTO MARTÍN ÁLVAREZ ◽

EUDALD CORTINA ORERO

Keyword(s):

Latin America ◽

El Salvador ◽

Early Years ◽

Left Wing ◽

Internal Dynamics ◽

Internal Coherence ◽

The 1960S

AbstractUsing interviews with former militants and previously unpublished documents, this article traces the genesis and internal dynamics of the Ejército Revolucionario del Pueblo (People's Revolutionary Army, ERP) in El Salvador during the early years of its existence (1970–6). This period was marked by the inability of the ERP to maintain internal coherence or any consensus on revolutionary strategy, which led to a series of splits and internal fights over control of the organisation. The evidence marshalled in this case study sheds new light on the origins of the armed Salvadorean Left and thus contributes to a wider understanding of the processes of formation and internal dynamics of armed left-wing groups that emerged from the 1960s onwards in Latin America.

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Culture and the plasticity of perception

Behavioral and Brain Sciences ◽

10.1017/s0140525x19002887 ◽

2020 ◽

Vol 43 ◽

Author(s):

Michael Lifshitz ◽

T. M. Luhrmann

Keyword(s):

Cultural Context ◽

Sensory Experience ◽

Cultural Learning ◽

The World

Abstract Culture shapes our basic sensory experience of the world. This is particularly striking in the study of religion and psychosis, where we and others have shown that cultural context determines both the structure and content of hallucination-like events. The cultural shaping of hallucinations may provide a rich case-study for linking cultural learning with emerging prediction-based models of perception.

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Dual systems for all: Higher-order, role-based relational reasoning as a uniquely derived feature of human cognition

Behavioral and Brain Sciences ◽

10.1017/s0140525x19000451 ◽

2019 ◽

Vol 42 ◽

Author(s):

Daniel J. Povinelli ◽

Gabrielle C. Glorioso ◽

Shannon L. Kuznar ◽

Mateja Pavlic

Keyword(s):

Temporal Reasoning ◽

Higher Order ◽

Important Case ◽

Human Cognition ◽

Relational Reasoning ◽

Dual Systems ◽

First Order ◽

Reasoning System ◽

Role Based

Abstract Hoerl and McCormack demonstrate that although animals possess a sophisticated temporal updating system, there is no evidence that they also possess a temporal reasoning system. This important case study is directly related to the broader claim that although animals are manifestly capable of first-order (perceptually-based) relational reasoning, they lack the capacity for higher-order, role-based relational reasoning. We argue this distinction applies to all domains of cognition.

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Sociocultural memory development research drives new directions in gadgetry science

Behavioral and Brain Sciences ◽

10.1017/s0140525x19000979 ◽

2019 ◽

Vol 42 ◽

Author(s):

Penny Van Bergen ◽

John Sutton

Keyword(s):

Episodic Memory ◽

Autobiographical Memory ◽

Developmental Psychology ◽

Cross Cultural ◽

Memory Development ◽

Development Research ◽

Cultural Research ◽

New Directions ◽

Cross Cultural Research

Abstract Sociocultural developmental psychology can drive new directions in gadgetry science. We use autobiographical memory, a compound capacity incorporating episodic memory, as a case study. Autobiographical memory emerges late in development, supported by interactions with parents. Intervention research highlights the causal influence of these interactions, whereas cross-cultural research demonstrates culturally determined diversity. Different patterns of inheritance are discussed.

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Construction of plastic contact deformation maps on ceramics: a case study on aluminum nitride

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100165641 ◽

1996 ◽

Vol 54 ◽

pp. 636-637

Author(s):

D. L. Callahan

Keyword(s):

Plastic Deformation ◽

Aluminum Nitride ◽

Mechanical Response ◽

Three Dimensional ◽

Bright Field Image ◽

Perfectly Plastic ◽

Contrast Analysis ◽

Deformation Patterns

Modern polishing, precision machining and microindentation techniques allow the processing and mechanical characterization of ceramics at nanometric scales and within entirely plastic deformation regimes. The mechanical response of most ceramics to such highly constrained contact is not predictable from macroscopic properties and the microstructural deformation patterns have proven difficult to characterize by the application of any individual technique. In this study, TEM techniques of contrast analysis and CBED are combined with stereographic analysis to construct a three-dimensional microstructure deformation map of the surface of a perfectly plastic microindentation on macroscopically brittle aluminum nitride.The bright field image in Figure 1 shows a lg Vickers microindentation contained within a single AlN grain far from any boundaries. High densities of dislocations are evident, particularly near facet edges but are not individually resolvable. The prominent bend contours also indicate the severity of plastic deformation. Figure 2 is a selected area diffraction pattern covering the entire indentation area.

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