Rays and Skates: Difference between revisions

Rays and Skates
Layer Info
Category	Ecology
Sub-category	Fish

Latest revision as of 15:57, 19 December 2023

Description

Rays and Skates are commonly known as Elasmobranchs, which include, sharks, skates and ray, they differ from other fish in the sea by having a skeletal structure made out of cartilage as opposed to bone. They are vulnerable to overfishing and once depleted, populations take a long time to recover. Rays and Skates are slow growing, late to reach maturity and typically have low fecundity, thus the number of individual fish recruited into a population on an annual basis is low.

Diet: Rays and Skates have similar feeding habits as they are both bottom-dwellers. They generally feed on various species of crustaceans like crabs and shrimps. Additionally, small fish and clams and mussels depending on the size of the ray or skate. They also consume a variety of worms and other small invertebrates that inhabit the seabed.

Threats: Young Rays and Skates are large enough to get caught as by-catch in trawl nets and dredge gear. Relatively a small proportion will actually reach breeding age, and those that do only produce enough of young later in life to help rebuild the population. Furthermore, the destructive fishing practices such as bottom trawling, can damage the seabed and habitats.

Not applicable. This layer is not yet available in the MSP Challenge North Sea Edition.

North Sea Digital Twin

In the North Sea Digital Twin Edition, the layer 'Sharks and Rays Abundance' include both Sharks and Rays. The layer is retrieved from the EMODnet Biology database, and was last updated in 2023-12.

Not applicable. This layer is not yet available in the MSP Challenge Baltic Sea Edition.

Information

Add species from EwE

Types

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Medium
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Metadata

Data Source

Rays and Skates is a month-by-month, computer generated data layer following calculations made by the ecosystem simulation (EwE). For more information on how Ecopath-with-Ecosim (EwE) works, please visit our Wiki page or visit the official EwE website at https://ecopath.org.

For detailed information on how the simulation works for the Clyde Marine Region Edition, we recommend further exploring our research publication called "Combining ecosystem modeling with serious gaming in support of transboundary maritime spatial planning".

Not applicable. This layer is not yet available in the MSP Challenge Adriatic Sea Edition.

Not applicable. This layer is not yet available in the MSP Challenge Eastern Mediterranean Sea Edition.

@@ Line 4: / Line 4: @@
 {{Infobox
   | title   = {{PAGENAME}}
-  | image = [[File:Layer_Rays_and_Skates.png|200px]]
+  | image = [[File:Layer_Rays_and_Skates.jpg|200px]]
   | headerstyle  =  background:#595958; color:#f9f9f9;
   | header1 = Layer Info
@@ Line 13: / Line 13: @@
 }}
 ==Description==
+Rays and Skates are commonly known as Elasmobranchs, which include, sharks, skates and ray, they differ from other fish in the sea by having a skeletal structure made out of cartilage as opposed to bone. They are vulnerable to overfishing and once depleted, populations take a long time to recover. Rays and Skates are slow growing, late to reach maturity and typically have low fecundity, thus the number of individual fish recruited into a population on an annual basis is low.
-'''Scientific name:'''
+'''Diet:''' Rays and Skates have similar feeding habits as they are both bottom-dwellers. They generally feed on various species of crustaceans like crabs and shrimps. Additionally, small fish and clams and mussels depending on the size of the ray or skate. They also consume a variety of worms and other small invertebrates that inhabit the seabed.
-'''Habitat:'''
+'''Threats:'''  Young Rays and Skates are large enough to get caught as by-catch in trawl nets and dredge gear. Relatively a small proportion will actually reach breeding age, and those that do only produce enough of young later in life to help rebuild the population. Furthermore, the destructive fishing practices such as bottom trawling, can damage the seabed and habitats.
-'''Main role:'''
-'''Trophic level:'''
-'''IUCN Red List Assessment:'''
-'''Diet:'''
-'''Threats:'''
 =North Sea=
 Not applicable. This layer is not yet available in the MSP Challenge North Sea Edition.
+== North Sea Digital Twin ==
+In the North Sea Digital Twin Edition, the layer 'Sharks and Rays Abundance' include both '''[[Sharks]]''' and '''Rays'''. The layer is retrieved from the EMODnet Biology database, and was last updated in 2023-12.
 =Baltic Sea=
@@ Line 37: / Line 31: @@
 == Information ==
+Add species from EwE
 ==Types==