HOME >> BIOLOGY >> NEWS
Humboldt squid on the move

Over the last five years, large, predatory Humboldt squid moved north from equatorial waters and invaded the sea off Central California, where they may be decimating populations of Pacific hake, an important commercial fish. Ironically, these squid may have benefited from the decline of large tuna and billfish in the Equatorial Pacific, which previously preyed upon and competed with the Humboldt squid for food. This biological shift is documented in an article by postdoctoral scholar Louis Zeidberg of Stanford University and senior scientist Bruce Robison of the Monterey Bay Aquarium Research Institute in the July 31, 2007 edition of the Proceedings of the National Academy of Sciences.

Humboldt squid (Dosidicus gigas) hunt in large numbers along the coasts of both North and South America, from Chile to Baja California. They have occasionally been spotted as far north as San Francisco, but never before in large numbers or over long periods of time. In recent years, mass strandings of Humboldt squid on Southern California beaches have led to speculation that the squid might be expanding their range. This study provides the first scientific records to prove that assertion.

To study changes in the abundance of Humboldt squid in Monterey Bay over time, the authors reviewed video and data from surveys of marine life carried out by Robison and his colleagues at the Monterey Bay Aquarium Research Institute (MBARI). Since 1989, Robison has used MBARI's remotely operated vehicles (ROVs) Ventana and Tiburon to videotape and count the number of midwater animals observed at specific depths in Monterey Bay. The resulting data are stored in a searchable database that allows scientists to determine exactly when and where each animal was seen.

Searching through Robison's survey data, Zeidberg found no observations of Humboldt Squid from 1989 to 1997. During 1997, however, large numbers of Humboldt squid were seen for a year or two after a strong El
'"/>

Contact: Kim Fulton-Bennett
kfb@mbari.org
831-775-1835
Monterey Bay Aquarium Research Institute
25-Jul-2007


Page: 1 2 3

Related biology news :

1. ASPB opposes proposed ban of GMOs in Humboldt county ballot measure M
2. Tracking sperm whales and jumbo squid
3. MBL scientists get on squids nerves
4. Study in Royal Society journal on first observation of giant squid in the wild
5. In a tiny squid, bacterial toxin governs organ development

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


(Date:8/23/2020)... Texas (PRWEB) , ... August 21, 2020 , ... ... Rigaku Corporation has been published and is now available on the ... crystal X-ray diffraction—serves the X-ray analysis community, presenting current news and crystallographic research. ...
(Date:8/21/2020)... (PRWEB) , ... August 20, 2020 , ... ... that Hassan Movahhed , a Clinical Operations executive with expertise in clinical ... has joined the firm as an Expert Consultant. Throughout his career, Mr. Movahhed ...
(Date:8/7/2020)... ... August 06, 2020 , ... ... the prestigious National STEM Scholar Program, a unique professional development program that provides ... support for middle school science teachers nationwide. , Created in partnership between the ...
Breaking Biology News(10 mins):
(Date:7/31/2020)... ... 29, 2020 , ... eSource has long been touted as the solution to ... of eSource, the reasons it did not take off as quickly as people initially ... industry is moving towards capturing data electronically for clinical trials and then repurposing it ...
(Date:7/18/2020)... , ... July 16, 2020 , ... “We are thrilled ... Wave Bioactives. “It’s the only technology of its kind on the market and we ... onions with the protective capacity of traditional cultured ingredients, creating a natural way to ...
(Date:7/10/2020)... HONG KONG (PRWEB) , ... July 09, 2020 ... ... chemical compound called 1-phenyl-2-thiourea (PTU) is commonly used to suppress pigment formation in ... years, the PolyU research team led by Dr MA has been using the ...
(Date:7/1/2020)... ... June 29, 2020 , ... The Interlocal Purchasing System (TIPS), ... membership, recently named BioFit Engineered Products an Awarded Vendor. Awarded Vendor ... seating, cafeteria tables, book trucks and carts at discounted pricing without the delay ...
Breaking Biology Technology:
Cached News: