Knowledge and Research on Chilean Fisheries Resources

2018 ◽

Vol 4 (2) ◽

Author(s):

Achmad Zamroni ◽

Nurlaili Nurlaili ◽

Cornelia Mirwantini Witomo

Keyword(s):

Content Analysis ◽

Waste Treatment ◽

Economic Pressure ◽

Household Economy ◽

Scientific Publications ◽

Seaweed Farming ◽

Alternative Livelihoods ◽

Fisheries Resources ◽

The Social ◽

Blue Economy

Tantangan pengembangan ekonomi biru di Lombok adalah menurunnya habitat terutama rumput laut, terumbu karang dan bakau, karena tingginya tekanan ekonomi yang menyebabkan orang terlibat dalam eksploitasi sumber daya perikanan. Tujuan riset adalah mereview penerapan konsep “Ekonomi Biru” pada usaha perikanan budidaya di Kabupaten Lombok Timur. Data dan informasi dikumpulkan melalui penelusuran dokumen, laporan riset dan publikasi ilmiah terkait topik kajian. Dokumen-dokumen tersebut dianalisis secara konten (content analysis) dan direview dari aspek sosial dan ekonomi yang dijelaskan secara kualitatif. Hasil review menunjukkan bahwa 6 (enam) usaha perikanan dapat memberikan efek berganda yaitu budidaya lobster, budi daya rumput laut, pengolahan kepiting, pengolahan limbah kepala ikan, dan tambak garam mempunyai peluang menciptakan efek berganda, artinya keenam usaha tersebut dapat menciptakan alternatif mata pencaharian yang bisa berdampak pada peningkatan ekonomi rumah tangga. Title: Prospects of the Implementation of Blue Economy Concept on An opportunity Fisheries Bussiness in East Lombok DistrictThe challenge of developing a blue economy in Lombok is the decline of habitats, especially seaweed, coral reefs and mangroves, due to the high economic pressure that causes people to be involved in exploitation of fisheries resources. The aim of the research is to review the application of the concept of “Blue Economy” in aquaculture businesses in East Lombok District. Data and information were collected through documents investigation, research reports and scientific publications related to the topic of the study. These documents were analyzed using content analysis and reviewed from the social and economic aspects qualitatively described. The result shows that the review indicates that 6 (six) fisheries businesses can provide multiple effects namely lobster aquaculture, seaweed farming, crab processing, fish head waste treatment, and salt farming have the opportunity to create multiple effects, meaning that the six businesses can create alternative livelihoods that can has an impact on improving the household economy.

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Subsistence Use of Fisheries Resources in Alaska: Implications for Great Lakes Fisheries Management

Transactions of the American Fisheries Society ◽

10.1577/1548-8659(1987)116<510:suofri>2.0.co;2 ◽

1987 ◽

Vol 116 (3) ◽

pp. 510-518 ◽

Cited By ~ 1

Author(s):

Robert M. Muth ◽

David E. Ruppert ◽

Ronald J. Glass

Keyword(s):

Great Lakes ◽

Fisheries Management ◽

Fisheries Resources

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Status of fisheries resources of bitter lakes, Suez Canal, Egypt

Egyptian Journal of Aquatic Biology and Fisheries ◽

10.21608/ejabf.2013.2163 ◽

2013 ◽

Vol 17 (1) ◽

pp. 1-9

Author(s):

Ashraf Ahmed ◽

Asmaa El-Karamany

Keyword(s):

Suez Canal ◽

Fisheries Resources

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Chesapeake Bay Stock Assessment: Who are they, and Where are they?

Water Science & Technology ◽

10.2166/wst.1992.0371 ◽

1992 ◽

Vol 26 (12) ◽

pp. 2705-2709 ◽

Cited By ~ 1

Author(s):

H. M. Austin

Keyword(s):

Chesapeake Bay ◽

Stock Assessment ◽

Human Consumption ◽

Population Fluctuations ◽

Important Species ◽

Fisheries Resources ◽

Environmentally Sensitive ◽

Climate Scale ◽

Resource And Environment

The Chesapeake Bay, while a significant habitat for fisheries resources, is in actuality an aquatic “bedroom community”, as many of the economically important species are seasonally transient. The pressure on these resources due to their demand for human consumption and recreation, proximity to extensive industrial activity along the shores, and climate scale environmental fluctuations has resulted in stock declines by most important species. Our inability to separate natural population fluctuations from those of anthropogenic origin complicates management efforts. The only way to make these separations, and subsequent informed management decisions is by supporting long-term stock assessment programs (monitoring) in the Bay which allow us to examine trends, cycles and stochastic processes between resource and environment. These programs need to monitor both recruitment and fishing mortality rates of the economically important species, and to identify and monitor the environmentally sensitive “canary” species.

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The role and value of science in shark conservation advocacy

Scientific Reports ◽

10.1038/s41598-021-96020-4 ◽

2021 ◽

Vol 11 (1) ◽

Author(s):

David S. Shiffman ◽

Catherine C. Macdonald ◽

S. Scott Wallace ◽

Nicholas K. Dulvy

Keyword(s):

Conservation Status ◽

Scientific Information ◽

Economic Benefits ◽

Global Management ◽

Fisheries Resources ◽

Policy Goals ◽

Shark Conservation ◽

Scientific Results ◽

State Of The Science ◽

Key Questions

AbstractMany species of sharks are threatened with extinction, and there has been a longstanding debate in scientific and environmental circles over the most effective and appropriate strategy to conserve and protect them. Should we allow for sustainable fisheries exploitation of species which can withstand fishing pressure, or ban all fisheries for sharks and trade in shark products? In the developing world, exploitation of fisheries resources can be essential to food security and poverty alleviation, and global management efforts are typically focused on sustainably maximizing economic benefits. This approach aligns with traditional fisheries management and the perspectives of most surveyed scientific researchers who study sharks. However, in Europe and North America, sharks are increasingly venerated as wildlife to be preserved irrespective of conservation status, resulting in growing pressure to prohibit exploitation of sharks and trade in shark products. To understand the causes and significance of this divergence in goals, we surveyed 155 shark conservation focused environmental advocates from 78 environmental non-profits, and asked three key questions: (1) where do advocates get scientific information? (2) Does all policy-relevant scientific information reach advocates? and (3) Do advocates work towards the same policy goals identified by scientific researchers? Findings suggest many environmental advocates are aware of key scientific results and use science-based arguments in their advocacy, but a small but vocal subset of advocates report that they never read the scientific literature or speak to scientists. Engagement with science appears to be a key predictor of whether advocates support sustainable management of shark fisheries or bans on shark fishing and trade in shark products. Conservation is a normative discipline, and this analysis more clearly articulates two distinct perspectives in shark conservation. Most advocates support the same evidence-based policies as academic and government scientists, while a smaller percentage are driven more by moral and ethical beliefs and may not find scientific research relevant or persuasive. We also find possible evidence that a small group of non-profits may be misrepresenting the state of the science while claiming to use science-based arguments, a concern that has been raised by surveyed scientists about the environmental community. This analysis suggests possible alternative avenues for engaging diverse stakeholders in productive discussions about shark conservation.

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Monitoring fisheries resources at offshore wind farms: BACI vs. BAG designs

ICES Journal of Marine Science ◽

10.1093/icesjms/fsaa026 ◽

2020 ◽

Vol 77 (3) ◽

pp. 890-900

Author(s):

Elizabeth T Methratta

Keyword(s):

Statistical Power ◽

Wind Farm ◽

Wind Farms ◽

Offshore Wind ◽

Cultural Value ◽

Analytical Models ◽

Offshore Wind Farms ◽

Fisheries Resources ◽

Unaffected Control ◽

Before And After

Abstract Offshore wind farms often co-occur with biodiverse marine ecosystems with high ecological, economic, and cultural value. Yet there are many uncertainties about how wind farms affect marine organisms and their environment. The before–after–control–impact (BACI) design, an approach that compares an impact location with an unaffected control both before and after the intervention, is the most common method used to study how offshore wind farms affect finfish. Unfortunately, this design has several methodological limitations that undermine its ability to detect effects in these studies. An alternative approach, the before–after-gradient (BAG) design, would sample along a gradient with increasing distance from the turbines both before and after the intervention, and could overcome many of the limitations of BACI. The BAG design would eliminate the difficult task of finding a suitable control, allow for the assessment of the spatial scale and extent of wind farm effects, and improve statistical power by incorporating distance as an independent variable in analytical models rather than relegating it to the error term. This article explores the strengths and weaknesses of the BACI and BAG designs in the context of offshore wind development and suggests an approach to incorporating the BAG design into existing fisheries surveys and a regional monitoring framework.

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Exploitation of specialised fisheries resources: The importance of hook size in recreational angling for large common carp (Cyprinus carpio L.)

Fisheries Research ◽

10.1016/j.fishres.2008.06.019 ◽

2008 ◽

Vol 94 (1) ◽

pp. 79-83 ◽

Cited By ~ 22

Author(s):

Tobias Rapp ◽

Steven J. Cooke ◽

Robert Arlinghaus

Keyword(s):

Common Carp ◽

Cyprinus Carpio ◽

Fisheries Resources ◽

Common Carp Cyprinus Carpio ◽

Recreational Angling ◽

Carp Cyprinus Carpio

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Links between Phenology of Large Phytoplankton and Fisheries in the Northern and Central Red Sea

Remote Sensing ◽

10.3390/rs13020231 ◽

2021 ◽

Vol 13 (2) ◽

pp. 231

Author(s):

John A. Gittings ◽

Dionysios. E. Raitsos ◽

Robert J. W. Brewin ◽

Ibrahim Hoteit

Keyword(s):

Red Sea ◽

Phytoplankton Bloom ◽

Size Structure ◽

Management Strategies ◽

Trophic Levels ◽

Cell Diameter ◽

Food Web Structure ◽

Marine Management ◽

Fisheries Resources ◽

Phytoplankton Size

Phytoplankton phenology and size structure are key ecological indicators that influence the survival and recruitment of higher trophic levels, marine food web structure, and biogeochemical cycling. For example, the presence of larger phytoplankton cells supports food chains that ultimately contribute to fisheries resources. Monitoring these indicators can thus provide important information to help understand the response of marine ecosystems to environmental change. In this study, we apply the phytoplankton size model of Gittings et al. (2019b) to 20-years of satellite-derived ocean colour observations in the northern and central Red Sea, and investigate interannual variability in phenology metrics for large phytoplankton (>2 µm in cell diameter). Large phytoplankton consistently bloom in the winter. However, the timing of bloom initiation and termination (in autumn and spring, respectively) varies between years. In the autumn/winter of 2002/2003, we detected a phytoplankton bloom, which initiated ~8 weeks earlier and lasted ~11 weeks longer than average. The event was linked with an eddy dipole in the central Red Sea, which increased nutrient availability and enhanced the growth of large phytoplankton. The earlier timing of food availability directly impacted the recruitment success of higher trophic levels, as represented by the maximum catch of two commercially important fisheries (Sardinella spp. and Teuthida) in the following year. The results of our analysis are essential for understanding trophic linkages between phytoplankton and fisheries and for marine management strategies in the Red Sea.

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