Search results
Results from the WOW.Com Content Network
The pH of water must match that of seawater (pH 7.8–8.4) in order for sponge production to be maximized. Sponges are sensitive to temperature, and extreme fluctuations in ambient temperature can negatively affect the health of sea sponges. High temperatures lead to crashes in sponge cultures.
Sponges can control the water flow by various combinations of wholly or partially closing the osculum and ostia (the intake pores) and varying the beat of the flagella, and may shut it down if there is a lot of sand or silt in the water.
The free-swimming larvae are lecithotrophic and grow slowly after attaching to a benthic surface. [8] [9] [10] Humans use and interact with S. officinalis in a variety of ways. Harvested sponges have been used throughout history for many purposes, including washing and painting. [2] Over-harvesting and sponge disease have led to a decrease in ...
Did you know one of the best trees for fall foliage is actually banned in Ohio? Meet the Bradford pear tree . As of January 2023, it became illegal to plant, grow, and sell this tree in Ohio due ...
Check out these nine trees, including a banned tree in Ohio. 1. Banned in Ohio: The Bradford pear tree. Native to Vietnam and China, the Bradford Pear tree is banned in Ohio due to its invasive ...
For premium support please call: 800-290-4726
Chondrocladia concrescens (formerly Cladorhiza concrescens) is a species of deep-sea carnivorous sponge in the family Cladorhizidae. It is commonly known as the "ping pong tree sponge" due to its distinctive tree-like shape with multiple branches. The species is found in the eastern Pacific Ocean and can grow up to one meter in height.
Hexactinellid sponges require a hard substrate, and do not anchor to muddy or sandy sea floors. [6] They are found only where sedimentation rates are low, dissolved silica is high (43–75 μM), and bottom currents are between 0.15 and 0.30 m/s. [5] Dissolved oxygen is low (64–152 μM), and temperatures are a cool 5.5-7.3 °C at the reefs. [5]