| Variable Type | Ordinal |
|---|---|
| Variable Component Type | Pollutant, Natural Resource Unit |
| Variable Kind | Component |
| Theme | Biophysical (learn about themes) |
| Projects | SESMAD, Fiji fisheries |
| Question | What is the size of this commons? |
| Select Options | 1 Microscopic, 2 Small, 3 Medium, 4 Large |
| Unit | |
| Role | |
| Importance | The visibility of natural resources aids management by providing visible insights concerning the status of a stock, and the potential effects of new patterns of use or other disturbances. Also, the scale of a resource or pollutant unit has implications for sustainability due to the technological and biological differences. Larger natural resource units also tend to have lower reproductive rates. |
| Definition | The physical dimensions of a resource or pollutant unit at its maximum extent. Microscopic: invisible to the naked eye (e.g. most pollutants) Small: Visible, but much smaller than an average person (e.g. a mollusk, small rodent) Medium: Slightly small than an average person (turtles, large predatory birds) Large: Somewhat larger to much larger than an average person (e.g. sharks, whales, elephants, most trees) |
| Sectors |
Theory Usages
| Theory | Value Used |
|---|
Associated Studies
| Study Citation |
|---|
Ostrom, Elinor. 2007. “A Diagnostic Approach for Going beyond Panaceas.” PNAS 104, no. 39: 15181–15187. |
Component Usages
| Component | Value Used | Explanation |
|---|---|---|
| Western Atlantic Bluefin Tuna | Medium (3) | Adult bluefin tuna weigh up to 900 kg, although the average adult weighs in at around 250kg and is 2.5m in length. |
| Galapagos Sea Cucumber | Small (2) | Adults 20-30cm, with suggested lifespan of 12-17 years. |
| Eastern Atlantic Bluefin Tuna | Medium (3) | Eastern Atlantic Bluefin can weigh up to 900 kg, although mature adults typically weigh 250kg with a length of approximately 2.5m. |
| Ozone | Microscopic (1) | Ozone is effectively invisible. |
| Ozone Depleting Substances | Microscopic (1) | |
| Patagonian Toothfish | Medium (3) | Toothfish can reach a weights greater than 200 kg and lengths over 2.3 meters (see e.g., Collins et al. 2010). The size of captured fish are, however, somewhat smaller and are generally gear-dependent. Trawl fishers tend to capture younger smaller fish (around 1 meter in length); while longline operators capture older larger fish (< one meter in length). |
| NWHI Lobster Fishery | Small (2) | |
| Macquarie Island Royal Penguin | Small (2) | |
| Light Mantled Albatross | Small (2) | Wingspan can be over 2 meters; and they typically weigh between 2.5 and 4 kilograms. |
| Wakatobi coral cover | Large (4) | The reefs as a whole are large (not the coral polyps themselves) |
| Galapagos Green Turtle | Medium (3) | Av weight of adult individual 68-190Kg |
| Salmon | ||
| Raja Ampat Reef Fish | Small (2) | On average reef fish are comparatively small |
| Galapagos Sharks | Large (4) | |
| NWHI Green Turtle | Medium (3) | Average weight of adult individual 68-190Kg |
| GABMP (Commonwealth Waters) Southern Right Whale | Large (4) | Southern right whales can reach a maximum length of 17.5 meters and weigh up to 80 tonnes. Females are generally 1 - 2 meters larger than males. |
| GABMP (Commonwealth Waters) Southern Bluefin Tuna | Medium (3) | SBT can reach 2.25m fork length and weigh >200 kg, although they more commonly reach 1.80m fork length and 100kg (Yearsely et al. 1999; BRS 2008). |
| King Penguin | Medium (3) | The king penguin is the second largest species of penguins, growing up to about three feet in height and 35 lbs in weight (Bost et al. 2013). |
| Cenderwasih green turtle | Medium (3) | Average weight of adult individual 68-190Kg |
| GABMP (Commonwealth Waters) Sea Lion | Medium (3) | Males can become very large, 185–225 cm in length and weighing 180–250 kg. Females are smaller, 130–185 cm at in length and weighing 65–100 kg. |
| Svalbard Kittiwake | Small (2) | The adult is 37–41 cm in length with a wingspan of 91–105 cm and a body mass of 305–525g |
| Cenderwasih target fish | Small (2) | On average reef fish are comparatively small |
| Patagonian squid (Loligo gahi) | Small (2) | Max. mantle length is 13-17 cm (Arkhipkin et al. 2013a) |
| New Zealand Sea Lion | ||
| Rhine Point source pollutants | Microscopic (1) | |
| Rhine Non-point source pollutants | Microscopic (1) | |
| fish | ||
| GBR target fish | ||
| GBR target fish | Small (2) | 0.1m |
| Wakatobi Green Turtle | Medium (3) | Average weight of adult individual 68-190Kg |
| Wakatobi fish spawning | Small (2) | Lutjanus bohar - common length = 76cm Epinephelus fuscoguttatus - common length = 50cm Plectropomus areolatus - max length 80cm (data from FishBase) |
| Raja Ampat Coral Cover | Large (4) | The reefs as a whole are large (not the coral polyps themselves) |
| Raja Ampat Green Turtle | Medium (3) | Average weight of adult individual 68-190Kg |
| California Humpback Whale | Large (4) | Fully grown, the males average 13–14 meters (43–46 feet) long. Females are slightly 1 to 1.5 m longer than males (Chittleborough 1965). Body mass is typically between 25–30 metric tons (28–33 short tons), with larger whales weighing more than 40 metric tons (Burnie and Wilson 2005). |
| Community D Fish Resources | Small (2) | |
| Community A Fish Resources | Small (2) | |
| Community C Fish Resources | Small (2) | |
| Community B Fish Resources | Small (2) | |
| Svalbard Polar Bear | Large (4) | Adult polar bears are typically 400-700kg and 2-3m long. |
| Seaflower coral reefs | Large (4) | Individual coral colonies can be 4 meters high/wide. |
| Seaflower groupers | Medium (3) | Individual groupers can grow to 1-2 meters. |
| Svalbard Beluga | Large (4) | Belugas are 4-6m long and in the range of 1100-1500kg. |
| Community G Fish Resources | Small (2) | |
| Community F Fish Resources | Small (2) | |
| Community E Fish Resources | Small (2) | |
| Community H Fish Resources | Small (2) | |
| Svalbard Shrimp | Small (2) | |
| GBR Green Turtle | Medium (3) | On average, adult Green Turtles are generally in the range of 105cm long, and often weigh around 130 kg. |
| Arrow Squid (Nototodarus spp.) | Small (2) | Max 42 cm mantle length and 1400 g (Smith et al. 1987) |
| California market squid (Loligo opalescens) | Small (2) | Average mantle length is 152 mm at the time of spawning. |