Please help these question 1. Do you think that gravity affects aquatic organisms in general and fish in particular in the same manner as that of terrestrial organisms? Write the reasons behind your claim. 2. How do density and viscosity of water affect the uptake of oxygen by fish? Discuss in detail. 3. Compare and contrast respiration among agnathans, cartilaginous fish and teleosts in a summarized format. 4. Describe the process of sequential hermaphroditism and list examples of fishes which follow the patterns of protogyny and protandry. 5. Discuss the advantages and disadvantages of group and pair spawning in fish.
Looks like someone has 5 homework questions and is using the internet to search up the answers. Glad you found the video and channel, but this video is about the osmotic stresses on cells of fish depending on the salinity of the water they are living in, which is not addressed in any of the questions you posted.
I agree, typically it is expressed as ppt (parts per thousand), but for the education goal of this video and audience, expressing salinity as a percentage was thought to be easier to understand. This is a continual challenge with all of the content on this channel. Thanks for commenting.
@@DeBaccoUniversity I'm from Brazil, maybe that's not exactly what you expect hahahahaha... (I can't tell you how helpful it is to know English and be able to cite foreign sources) So, how would I cite you exactly? I think name and university would be enough. Thanks in advance!
@@bobthesir1467 Thanks for posting your location that is great to know. Regarding citations, there can be different formats that are determined by the place of publication. There can also be different requirements if you are citing the video lecture or the slides found in the description. MLA, APA and Chicago are the most common structures used. You should simply search "how to cite a TH-cam video" which will likely provide you with the information you need to best fit your situation. Your comment is appreciated and thanks for going through the proper channels to credit your source of information.
If the fresh water is 0% salinity meaning there's no salt in it how does the freshwater fish absorb salt through the gills if there's not any salt in the water? Please answer
The 0% salinity is referring to NaCl (Sodium Chloride), which is technically not 0%, but very low (less than 0.3%). I tried to make the arrow thin to indicate this is a minimal pathway. Also, when "salt" is being absorbed through the gills, a more appropriate term would be ions. Ion movement in the form of Na+, K+ and Cl- as you can see on slide #7 is what is being absorbed across the gills. Also remember that salts (ions) are also entering the fish through its diet. Hope this helps.
The pics of you fishing made me smile:) thanks for the great vid.
Trying to add a little personal flare, thanks for noticing.
What a fantastic video. Amazing explanation!
Glad you liked it!
Please help these question
1. Do you think that gravity affects aquatic organisms in general and fish in particular in the same manner as that of terrestrial organisms? Write the reasons behind your claim.
2. How do density and viscosity of water affect the uptake of oxygen by fish? Discuss in detail.
3. Compare and contrast respiration among agnathans, cartilaginous fish and teleosts in a summarized format.
4. Describe the process of sequential hermaphroditism and list examples of fishes which follow the patterns of protogyny and protandry.
5. Discuss the advantages and disadvantages of group and pair spawning in fish.
Looks like someone has 5 homework questions and is using the internet to search up the answers. Glad you found the video and channel, but this video is about the osmotic stresses on cells of fish depending on the salinity of the water they are living in, which is not addressed in any of the questions you posted.
This is absolutely amazing!!!!!!! nice job. please continue ...
Thanks for the comment and through a simple search on the DeBacco University channel, there are many more topics you can learn about.
Really appreciate the video, it was helpful just a little detail
Glad it helped you out!
@@DeBaccoUniversity yes ofc it help me and now i understand and know the difference between freshwater and marine species
I have one question what will happen to a purely estuarine species when it enters freshwater/ salt water
Thank you for sharing your expertise 😊.. now it is useful to me
Great to hear you found the video content useful!
Where did the figure for the fish salinity come from? The 14%? Interested in tracking down studies relating to that exact figure
This should read 1.4% so off by a factor of 10, but the general concept still hold true.
This is absolutely amazing!!!!!!! Thank you so so much!
You are welcome and thanks for taking the time to comment!
th-cam.com/video/go1X_J4ZfH4/w-d-xo.html
HI! Thanks for your video, it was helpful, just a little detail to improve it, salt concentration is in (ppt) and not percentage.
I agree, typically it is expressed as ppt (parts per thousand), but for the education goal of this video and audience, expressing salinity as a percentage was thought to be easier to understand. This is a continual challenge with all of the content on this channel. Thanks for commenting.
Very very helpful
Glad you found it helpful.
Very good video!
Your comment is appreciated and glad you found it useful.
It's 3.5 percent salinity, NOT 35 % salinity in saltwater! (video at about 2:50)
Thanks for this catch.
Excellent lecture! Do you mind if I cite your work on a school project?
No problem at all, where do you attend school? It is always interesting to learn where the videos are being used.
@@DeBaccoUniversity I'm from Brazil, maybe that's not exactly what you expect hahahahaha... (I can't tell you how helpful it is to know English and be able to cite foreign sources) So, how would I cite you exactly? I think name and university would be enough. Thanks in advance!
@@bobthesir1467 Thanks for posting your location that is great to know. Regarding citations, there can be different formats that are determined by the place of publication. There can also be different requirements if you are citing the video lecture or the slides found in the description. MLA, APA and Chicago are the most common structures used. You should simply search "how to cite a TH-cam video" which will likely provide you with the information you need to best fit your situation. Your comment is appreciated and thanks for going through the proper channels to credit your source of information.
If the fresh water is 0% salinity meaning there's no salt in it how does the freshwater fish absorb salt through the gills if there's not any salt in the water? Please answer
The 0% salinity is referring to NaCl (Sodium Chloride), which is technically not 0%, but very low (less than 0.3%). I tried to make the arrow thin to indicate this is a minimal pathway. Also, when "salt" is being absorbed through the gills, a more appropriate term would be ions. Ion movement in the form of Na+, K+ and Cl- as you can see on slide #7 is what is being absorbed across the gills. Also remember that salts (ions) are also entering the fish through its diet. Hope this helps.