HOME >> BIOLOGY >> NEWS
Analysis of impact studies reveals how bottom fishing affects seafloor denizens

Fishing gears used to catch bottom-dwelling fish and shellfish often disturb both the seabed and the organisms living within or on it. The potential impact of this disturbance has become a subject of heated debate because of the widespread use of bottom fishing gear and the ability to visualize its effects with underwater photography. To address this controversy, a team of international scientists, including University of Rhode Island fisheries oceanographer Jeremy S. Collie, analyzed data from a number of separate fishing impact studies and have come to some surprising conclusions. The results of Collies meta-analysis, which is the summary of multiple, independent studies to detect general relationships, are reported in a recent issue of the Journal of Animal Ecology. The scientific team found 57 different observations from 39 separate studies on the effects of fishing disturbance on seafloor organisms around the world.

The study reveals that the type of fishing gear used has a significant effect on the degree of disturbance to sediment organisms. Inter-tidal dredging has the most negative impact, followed by scallop dredging and inter-tidal raking. Otter trawling and beam trawling are less negative, which is not surprising as dredges tend to penetrate deeper into the sediments than trawls.

Habitat type was also considered with the most negative impacts occurring in muddy sand and gravel habitats. Surprisingly, the least impact is observed in mud habitats, not sand. The studies revealed that beam trawling in sand habitats has less impact than the other gear types and other habitats. As expected, largest negative impacts occur in biogenic habitats, which are largely composed of relatively slow growing species, such as sponges and corals.

The populations affected by bottom fishing range from corals, sea anemones, lobsters, shrimp, and crabs being most negatively affected, to starfishes and aquatic earthworms being the leas
'"/>

Contact: Lisa Cugini
lcugini@gso.uri.edu
401-874-6642
University of Rhode Island
26-Jun-2001


Page: 1 2 3

Related biology news :

1. Analysis fingers causes of desertification
2. Analysis of gene expression in lymphoid cells can determine lymphoma cancer
3. Analysis of biological clock may lead to greater understanding of human disease
4. Analysis uncovers critical stretches of human genome
5. Newer methods added, scope expanded in new Methods of Soil Analysis Book
6. MelTec GmbH announces new technology for High-Throughput Topological Analysis of human cells
7. Analysis of flight performance in wandering albatrosses yields insights into foraging patterns of different ages and sexes
8. Analysis of Martian meteorite using unique magnetic microscope
9. Cancer-Risk Analysis Program Goes Public
10. Urine Tests Will Do Better Than Pelvic Exams To Save Teens From Serious Effects Of Sexually Transmitted Diseases, UCSF Analysis Shows
11. Farmers Can Afford To Clean Up Gulf Of Mexico, Analysis Shows

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:6/28/2020)... JUPITER, Fla. (PRWEB) , ... June 25, 2020 , ... ... will focus on innovations in accelerated Point of Care Testing solutions (POCT). Check local ... labs. Samples are collected at medical offices and are shipped to labs throughout the ...
(Date:6/23/2020)... (PRWEB) , ... June 22, 2020 , ... The field ... Typically, ligand binding assays (LBA) have dominated this area. However, the use of mass ... years. , This now necessitates the question “How do you choose which approach to ...
(Date:6/19/2020)... DIEGO (PRWEB) , ... June ... ... a three-part webinar series, “Automate Your Lab with Software for Data Decisions,” ... Attendees will learn how to integrate and automate cutting-edge scientific instruments and ...
Breaking Biology News(10 mins):
(Date:5/30/2020)... ... May 29, 2020 , ... The ... the first newsletter solely dedicated to the unique role of the Chief Medical ... perspectives on the responsibilities, problem-solving, best practices and career development of CMOs and ...
(Date:5/26/2020)... ... ... Brilliant , the leading smart home control and lighting company, and ... new integration to bring more convenience, simplicity, and security to the smart home industry. ... now be controlled from Brilliant’s in-wall touchscreen control panels and mobile app. , ...
(Date:5/21/2020)... ... 19, 2020 , ... Eaton Square is pleased to announce its growth on ... biotechnology and medical technology-focused strategy and M&A advisory firm. , This is an important ... US and Asia Pacific healthcare innovators with capital and investors. , Popper and Company, ...
(Date:5/15/2020)... (PRWEB) , ... May 14, 2020 , ... ... to undergo multiple open heart surgeries before becoming adults. The reason: ... , To address this critical unmet need, the Department of Defense has awarded ...
Breaking Biology Technology:
Cached News: