The dolphin leaning post is an important piece of equipment at many aquatic facilities that house dolphins. It allows the dolphins to comfortably rest and sleep partially above the water. Determining the proper size for a dolphin leaning post depends on the size and needs of the individual dolphins who will be using it. Generally, larger dolphins require larger leaning posts to properly support their weight out of the water. The width, height, and overall size can vary based on the specifics of the habitat and dolphins.
Dolphin Sizes
Dolphins come in a wide variety of shapes and sizes. The largest dolphin species is the orca or killer whale. Male orcas typically reach lengths of 26 feet and weights of 12,000 pounds. On the smaller end, some species like Hector’s dolphins only reach 4 feet long and 110 pounds. The most commonly kept smaller species in captivity are bottlenose dolphins and Pacific white-sided dolphins. Bottlenose dolphins reach sizes of 10-14 feet and 440-1,430 pounds. Pacific white-sided dolphins reach lengths of 5-8 feet long and weights of 220-350 pounds.
Leaning Post Width
The width of the leaning post must be sufficient to support the full width of a dolphin’s body. Most leaning posts are 3-5 feet wide to accommodate average sized dolphins like bottlenose dolphins. Smaller species may only require 2-3 feet, while larger dolphins need up to 6 feet wide or more. The post should be just wide enough for the dolphin to lay comfortably without having their fins or flukes hang off the edge. Having a post that is too narrow for the dolphin can cause them to experience stiffness or soreness after resting.
Leaning Post Height
In addition to having an appropriate width, the leaning post must also have a suitable height above the water for each dolphin species. Most posts are set 2-3 feet above the water’s surface. This allows enough clearance for most dolphins to easily maneuver onto the post and rest their bodies out of the water. Smaller dolphins like Hector’s dolphins may only require 1-2 feet of height. Larger species need more elevation, sometimes up to 4 feet above the water. The ideal height takes into account the dolphin’s size while still allowing them to smoothly transition on and off the post.
Material and Texture
Dolphin leaning posts are typically made of materials like coated foam, canvas, or vinyl. These materials provide a non-abrasive texture that is comfortable for the dolphins to lay against. Some facilities choose to install a softer foam cushion overlay on the surface for added comfort. Having a soft texture helps prevent the dolphin’s skin from being irritated during extended resting periods. The material also needs to be durable and supportive enough to handle the dolphin’s weight. Anti-microbial coatings are sometimes added to inhibit bacterial growth.
Examples of Different Sized Leaning Posts
To illustrate the variations in dolphin leaning post sizes, here are some examples suited to different dolphin species:
| Dolphin Species | Leaning Post Width | Leaning Post Height |
|---|---|---|
| Bottlenose Dolphin | 4 feet | 3 feet |
| Pacific White-Sided Dolphin | 3 feet | 2 feet |
| Orca | 8 feet | 4 feet |
Location Within Habitat
In addition to the size, the location where the leaning post is positioned within the dolphin habitat is important. It should be placed in an area that is out of the mainstream of activity, allowing the dolphins rest without disturbances. Having it near the perimeter walls provides them support on multiple sides. This gives the dolphins a sense of security and protection while resting. Easy access from multiple directions is key so different dolphins can take turns using it as needed.
Multiple Leaning Posts
For habitats with several dolphins, it is best to install multiple leaning posts. This prevents dominance behavior where one dolphin monopolizes the resources. The posts should be spaced adequately apart to reduce competition. Having several options allows each dolphin opportunities to rest comfortably. The addition of cushions and stability balls offers more diversity as well. Rotating the enrichment items keeps the habitat engaging.
Additional Considerations
There are a few additional considerations when determining leaning post size and setup:
– The post must be securely installed to handle continuous use over time without failing. Loose or wobbly posts create safety hazards.
– Gradual slopes leading up to the post allow easy maneuvering on and off. Sharp drops or edges can cause injury.
– Routine maintenance and disinfection are required to keep the post clean and free of bacteria.
– Start with smaller sized posts for young dolphins. Increase the size as they grow.
– Have spare posts available. Removing and replacing posts periodically helps reduce wear and tear in one area.
Conclusion
The appropriate size for a dolphin leaning post depends primarily on the species and size of the dolphins. It is important to make the post wide and tall enough to fully support the dolphin’s body comfortably out of the water. While most posts are 2-5 feet wide and 2-4 feet tall, the specifics can vary. Smaller dolphins need smaller accommodations. Larger species require more substantial posts. The best indication of proper size is observing how the dolphins respond to and utilize the posts. Having multiple options and making adjustments provides the highest level of comfort and care. With some thoughtful consideration for their needs, an adequately sized leaning post can give dolphins the perfect place to rest and recharge.