Views
Graph
Explorer
Focus
Down
Load 1 level
Load 2 levels
Load 3 levels
Load 4 levels
Load all levels
All
Dagre
Focus
Down
Load 1 level
Load 2 levels
Load 3 levels
Load 4 level
Load all levels
All
Tree
SpaceTree
Focus
Expanding
Load 1 level
Load 2 levels
Load 3 levels
Down
All
Down
Radial
Focus
Expanding
Load 1 level
Load 2 levels
Load 3 levels
Down
All
Down
Box
Focus
Expanding
Down
Up
All
Down
Page ✓
Article
Outline
Document
Down
All
Canvas
Time
Timeline
Calendar
Request email digest
Past 24 hours
Past 2 days
Past 3 days
Past week
Add
Add page
Add comment
Add citation
Edit
Edit page
Delete page
Share
Link
Bookmark
Embed
Social media
Login
Member login
Register now for a free account
🔎
Collapse of Ocean Fisheries
Issue
1
#13986
Many of our ocean fisheries are in a massively depleted state due to overfishing, and much of the world relies on fish for the protein in their diets.
CONTEXT
(Help)
-
Anthropogenic Climate Change »
Anthropogenic Climate Change
Anthropogenic Climate Change☜Mapping the causes, consequences and potential responses to climate change.☜F1CEB7
▲
Interrelated issues? »
Interrelated issues?
Interrelated issues?☜Climate change is not happening in isolation. Humanity is impacting the environment in other ways. What are these and how do they interrelate to climate change?☜FFB597
▲
Food supply »
Food supply
Food supply☜☜FFB597
■
Collapse of Ocean Fisheries
Collapse of Ocean Fisheries☜Many of our ocean fisheries are in a massively depleted state due to overfishing, and much of the world relies on fish for the protein in their diets.☜FFB597
●
Effective management may mitigate overfishing »
Effective management may mitigate overfishing
Effective management may mitigate overfishing☜Five out of 10 global ecosystems once threatened by overfishing are on the mend, According to study published in Science 8/09☜59C6EF
►
Breaching key thresholds and boundaries »
Breaching key thresholds and boundaries
Breaching key thresholds and boundaries☜The Earth is a complex interconnected system. Complex systems can confer remarkable stability, but are susceptible to abrupt and rapid changes; seemingly trivial changes in conditions can lead to unexpectedly swift and profound results.☜FFFACD
◄
Dissolved CO2 turns oceans increasingly acidic disrupting food chain »
Dissolved CO2 turns oceans increasingly acidic disrupting food chain
Dissolved CO2 turns oceans increasingly acidic disrupting food chain☜☜FFFACD
◄
Ocean faces multiple, interconnected threats »
Ocean faces multiple, interconnected threats
Ocean faces multiple, interconnected threats☜The ocean faces a multitude of interconnected threats that is unprecedented in modern history. ☜FFFACD
Heading
Summary
Click the button to enter task scheduling information
Open
Details
Enter task details
Message text
Select assignee(s)
Due date (click calendar)
RadDatePicker
RadDatePicker
Open the calendar popup.
Calendar
Title and navigation
Title and navigation
<<
<
October 2024
>
<<
October 2024
S
M
T
W
T
F
S
40
29
30
1
2
3
4
5
41
6
7
8
9
10
11
12
42
13
14
15
16
17
18
19
43
20
21
22
23
24
25
26
44
27
28
29
30
31
1
2
45
3
4
5
6
7
8
9
Reminder
No reminder
1 day before due
2 days before due
3 days before due
1 week before due
Ready to post
Copy to text
Enter
Cancel
Task assignment(s) have been emailed and cannot now be altered
Lock
Cancel
Save
Comment graphing options
Choose comments:
Comment only
Whole thread
All comments
Choose location:
To a new map
To this map
New map options
Select map ontology
Options
Standard (default) ontology
College debate ontology
Hypothesis ontology
Influence diagram ontology
Story ontology
Graph to private map
Cancel
Proceed
+Comments (
0
)
- Comments
Add a comment
Newest first
Oldest first
Show threads
+Citations (
2
)
- Citations
Add new citation
List by:
Citerank
Map
Link
[1]
The ocean is broken
Author:
Greg Ray
Publication info:
2013 October, 18
Cited by:
David Price
7:17 PM 28 October 2013 GMT
URL:
http://www.theherald.com.au/story/1848433/the-ocean-is-broken/
Excerpt / Summary
It was the silence that made this voyage different from all of those before it.
Not the absence of sound, exactly.
The wind still whipped the sails and whistled in the rigging. The waves still sloshed against the fibreglass hull.
And there were plenty of other noises: muffled thuds and bumps and scrapes as the boat knocked against pieces of debris.
What was missing was the cries of the seabirds which, on all previous similar voyages, had surrounded the boat.
The birds were missing because the fish were missing.
Exactly 10 years before, when Newcastle yachtsman Ivan Macfadyen had sailed exactly the same course from Melbourne to Osaka, all he'd had to do to catch a fish from the ocean between Brisbane and Japan was throw out a baited line.
"There was not one of the 28 days on that portion of the trip when we didn't catch a good-sized fish to cook up and eat with some rice," Macfadyen recalled.
But this time, on that whole long leg of sea journey, the total catch was two.
Link
[2]
Stung!: On Jellyfish Blooms and the Future of the Ocean
Author:
Lisa-Ann Gershwin
Publication info:
2013 May
Cited by:
David Price
7:21 PM 28 October 2013 GMT
URL:
http://press.uchicago.edu/ucp/books/book/chicago/S/bo15220175.html
Excerpt / Summary
Our oceans are becoming increasingly inhospitable to life – growing toxicity and rising temperatures coupled with overfishing have led many marine species to the brink of collapse. And yet there is one creature that is thriving in this seasick environment: the beautiful, dangerous, and now incredibly numerous jellyfish. As foremost jellyfish expert Lisa-ann Gershwin describes in Stung!, the jellyfish population bloom is highly indicative of the tragic state of the world’s ocean waters, while also revealing the incredible tenacity of these remarkable creatures.
+About
- About
Entered by:-
David Hodgson
NodeID:
#13986
Node type:
Issue
Entry date (GMT):
3/16/2009 5:37:00 AM
Last edit date (GMT):
11/26/2009 12:22:00 PM
Show other editors
Incoming cross-relations:
2
Outgoing cross-relations:
1
Average rating:
0
by
0
users
x
Select file to upload