Development of a culture tank to improve the survival rate in the early larval stage

Impact ◽  
2020 ◽  
Vol 2020 (6) ◽  
pp. 58-59
Author(s):  
Yuki Takahashi
Keyword(s):  
Survival Rate ◽  
Endangered Species ◽  
Graduate School ◽  
Aquatic Plants ◽  
Larval Stage ◽  
Marine Species ◽  
Assistant Professor ◽  
Early Larval Stage ◽  
Collaborative Team ◽  
Global Population

Aquaculture is a method of producing fish, crustaceans, molluscs, aquatic plants, algae and other organisms in a sustainable manner. As the global population continues to grow, so too has demand and, as a result, many marine species have become severely depleted. Aquaculture is a means of sustainably addressing this demand, replenishing wild stocks and rebuilding populations of endangered species. Assistant Professor Yuki Takahashi, from the Graduate School of Fisheries Sciences at Hokkaido University in Japan, is working as part of a collaborative team of researchers from across academia and industry in Japan to adress this issue of sustainability of demand, by developing an aquaculture tank designed to improve the survival rate in the early larval stage.

scholarly journals High survival rate of a critically endangered species, the Azores Bullfinch Pyrrhula murina, as a contribution to population recovery

2010 ◽  
Vol 151 (3) ◽  
pp. 627-636 ◽  
Author(s):  
David Monticelli ◽  
Ricardo Ceia ◽  
Ruben Heleno ◽  
Hugo Laborda ◽  
Sergio Timóteo ◽  
...  
Keyword(s):  
Survival Rate ◽  
Endangered Species ◽  
Critically Endangered ◽  
High Survival ◽  
Population Recovery ◽  
High Survival Rate ◽  
Critically Endangered Species

scholarly journals An Inverted Management Strategy for the Fishery of Endangered Marine Species

2021 ◽  
Vol 8 ◽  
Author(s):  
Hudson T. Pinheiro ◽  
Jose A. C. C. Nunes ◽  
E. O. C. Coni ◽  
E. C. G. Almeida ◽  
C. L. S. Sampaio ◽  
...  
Keyword(s):  
Endangered Species ◽  
Management Strategy ◽  
Management Strategies ◽  
Marine Species ◽  
Management Plan ◽  
Brazilian Coast ◽  
Innovative Strategy ◽  
Key Species ◽  
The Government ◽  
Marine Areas

Overfishing is notorious for triggering population collapses and disrupting marine biological functioning worldwide. To counter such a threat, policy-makers have created and implemented multiple management strategies, but most were incapable to prevent the decline of several key species. Here, we discuss a new management strategy in force since June 2019 in Brazil that aims to deter the overfishing of parrotfish species of the genera Scarus and Sparisoma. This innovative strategy, here referred to as inverted management, allows the capture of endangered parrotfish species inside management areas, such as partially protected marine areas—MPAs, but bans it elsewhere. This initiative is supposed to be built in a partnership among the government, scientists, managers, and fishers. If implemented correctly, endangered species would recover in the much larger area outside MPAs, and fishers would benefit from the conservation-value of the scarce and valued product. However, to succeed, the strategy depends on the adoption of a series of challenging management rules that are not currently being enforced along an extensive coastline. So far, few MPAs have incorporated rules for endangered species in their management plan, and those that have done so have no plans or the means to enforce them. Therefore, fishing of endangered species is currently ongoing without any management or monitoring in the entire Brazilian coast. Concerned with the challenges to develop plans to recover populations of endangered species faced by Brazilian managers, we suggest wide communication and a ban on the fisheries until management plans are implemented. Additionally, we suggest that the effectiveness of the inverted management strategy for parrotfishes should be assessed before it’s applied to other endangered species.

scholarly journals First person – Sachiko Fujiwara

2020 ◽  
Vol 133 (14) ◽  
pp. jcs251082
Keyword(s):  
Developmental Biology ◽  
Graduate School ◽  
Assistant Professor ◽  
Health Sciences ◽  
Early Career ◽  
First Person ◽  
Postdoctoral Fellow ◽  
Collective Migration ◽  
Early Career Researchers ◽  
Selection Of

ABSTRACTFirst Person is a series of interviews with the first authors of a selection of papers published in Journal of Cell Science, helping early-career researchers promote themselves alongside their papers. Sachiko Fujiwara is first author on ‘Disease-associated keratin mutations reduce traction forces and compromise adhesion and collective migration’, published in JCS. Sachiko conducted the research described in this article while a Postdoctoral fellow in Thomas M. Magin's lab at Institute of Biology, Division of Cell & Developmental Biology, Leipzig University, Germany. She is now an assistant professor in the lab of Kazunori Imaizumi at the Graduate School of Biomedical & Health Sciences, Hiroshima University, Japan, investigating the physiological roles of cytoskeletons.

scholarly journals STUDY ON SURVIVABILITY OF NEWLY HATCHED LARVAE OF TWO SPECIES OF PEPPERMINT SHRIMP FED WITH DIFFERENT COMBINATIONS AND DENSITIES OF LIVE FOODS

2019 ◽  
Vol 14 (1) ◽  
pp. 15
Author(s):  
Indra Pratama ◽  
Hatim Albasri
Keyword(s):  
Survival Rate ◽  
Larval Stage ◽  
Survival Rates ◽  
The Third ◽  
Randomized Design ◽  
Average Survival ◽  
Peppermint Shrimp ◽  
Trial Treatment ◽  
Newly Hatched Larvae ◽  
Average Survival Rate

This study was aimed to evaluate different types and combinations of live foods in relation to the survivability of newly hatched Lysmata vittata and Lysmata intermedia larvae. The experiment consisted of three trials (different species, combinations, and densities of live foods) arranged in a completely randomized design. The first and second trials were subjected to L. vittata with three treatments for each trial (1A, 1B, 1C for trial-1; 1D, 1E, 1F for trial-2). The third trial consisted of two treatments (2A and 2B) tested on L. intermedia. Each treatment had three replicates. The results showed that the survival rates were low in all treatments. However, each treatment showed a significant effect (P<0.05) on the average survival rate of L. vittata and L. intermedia larvae. In the first trial, treatment 1C was the only one that had survived larvae after day 35 with 4.44% of final average survival rate (FASR). Four of the larvae reached the post-larval stage. In the second trial, treatment 1F showed a better condition than the other treatments with 5.56% FASR. Nevertheless, no larvae in the second trial had transformed to post-larval stage before the experiment ended at day 46. In the third trial, no larvae survived to reach the post-larval stage. In spite of this, treatment 2B had better daily average survival rate (DASR) than treatment 2A. This research concludes that the use of copepods as live food at an early larval stage and Artemia at a later stage is relatively more effective to improve the survival rate of peppermint shrimp larvae.

United States Climate Change Law

2016 ◽  
Author(s):  
Michael B. Gerrard
Keyword(s):  
Climate Change ◽  
United States ◽  
Endangered Species ◽  
Traffic Safety ◽  
Environmental Protection Agency ◽  
Climate Change Policy ◽  
Marine Species ◽  
The United States ◽  
Highway Traffic ◽  
National Highway Traffic Safety

This chapter presents an overview of climate change law in the United States, given the global impact of its domestic and international climate change policies. It traces the evolution of US climate change policy under different presidents, and discusses emerging programs under the Clean Air Act (CAA). Under the CAA, the Environmental Protection Agency (EPA) issues emissions standards, and under the Energy Policy Conservation Act, the National Highway Traffic Safety Administration (NHTSA) issues Corporate Average Fuel Economy (CAFE) standards. The chapter also describes the protection of endangered species under the Endangered Species Act (ESA). The ESA directs the Fish and Wildlife Service to designate certain species as endangered or threatened; for marine species that task falls to the National Marine Fisheries Service.

scholarly journals Developmental stages of a mottled emigrant butterfly, catopsilia pyranthe

1970 ◽  
Vol 19 (2) ◽  
pp. 171-179 ◽  
Author(s):  
MH Arju ◽  
MA Bashar ◽  
G Moula
Keyword(s):  
Life Cycle ◽  
Survival Rate ◽  
Key Words ◽  
Laboratory Condition ◽  
Food Consumption ◽  
Larval Stage ◽  
Developmental Stages ◽  
Average Duration ◽  
Cycle Duration ◽  
Life Cycle Duration

The overall life cycle, duration and survival rate of different developmental stages (egg, larva and pupa) of Catopsilia pyranthe conducted at 27 ± 3°C and RH 75% ± 2. showed that within 6.4 days 68% eggs hatched. The average duration from egg to adult, larval stage and pupal were 23.87, 10.93 and 6.8 days, respectively. Fifty six out of 68 larvae successfully completed their whole 5 instars. There were positive correlation among the larval instars, amount of food consumption and excretion of faeces. About 52% pupa were emerged as adult at laboratory condition. Key words: Life cycle; Catopsilia pyranthe; Developmental stages; Rearing DOI: http://dx.doi.org/10.3329/dujbs.v19i2.8961 DUJBS 2010; 19(2): 171-179

scholarly journals A History of a West Coast Firm Being Written at Stanford University

1947 ◽  
Vol 21 (6) ◽  
pp. 172-172
Keyword(s):  
San Francisco ◽  
Graduate School ◽  
West Coast ◽  
Assistant Professor ◽  
Business History ◽  
Stanford University ◽  
Research Associate ◽  
History Of

Pope & Talbot, Inc., pioneer San Francisco lumber and shipping firm, has made a $17,500 grant to the Stanford Graduate School of Business for the writing of the hundred-year history of the firm.The research and writing will be done by Edwin T. Coman, director of the Graduate School of Business Library and assistant professor of business history. Miss Helen Gibbs, as research associate, will assist in the research and writing.

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