Dataset: Squid Summary BIPXII
Deployment: BIPXII_10_2013

Summary of Dosidicus gigas size, sex, and maturity.

Principal Investigator:

William Gilly (Stanford University)

BCO-DMO Data Manager:

Shannon Rauch (Woods Hole Oceanographic Institution, WHOI BCO-DMO)

Project:

Adaptable life history strategy of a migratory large predator in response to El Nino and climate change (Jumbo Squid El Nino Response)

Current State:

Preliminary and in progress

Version:

29 Sept 2015

Version Date:

2015-09-29

Data URL:

https://www.bco-dmo.org/dataset-deployment/614739/data

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Description

Summary of Dosidicus gigas size, sex, and maturity from BIPXII cruise in October 2013 in the Central Gulf of California, Mexico, Santa Rosalia (27.3N, 112.1W) to Bahia Las Animas (28.9N, 113.3W) to Guaymas (27.8N, 111.3W).

Methods & Sampling

Dataset acquisition description

Squid were captured during rod-and-reel jigging sessions using weighted, luminescent jigs (8–50 cm length) fished at depths from 200 m to the surface. Measurements were made on the research vessel within 1-2 hours of capture. Length was measured with a flexible tape, generally to the nearest 0.5 cm. Mass was weighed with a digital hanging scale to the nearest 0.1 kg. Sex and maturity were visually determined following criteria for Stages 1-5 (Lipinski & Underhill, 1995): Stage I–II = immature, Stage III = maturing, Stage IV–V = mature. (See also Hoving et al. 2013.) CTD data from these sampling sites are also available and have been deposited with BCO-DMO.

References:
Lipinski MR, Underhill LG. 1995. Sexual maturation in squid: quantum or continuum. South African Journal of Marine Science, 15, 207–223. doi:10.2989/02577619509504844

Hoving H.-J, Gilly WF, Markaida U, Benoit-Bird KJ, West-Brown Z, Daniel P, Field JC, Parassenti L, Liu B, Campos B. 2013. Extreme plasticity in life-history strategy allows a migratory predator (Dosidicus gigas) to cope with a changing climate. Global Change Biology 19:2089 –2103. doi:10.1111/gcb.12198

Data Processing Description

Dataset Processing Description

Summary data have been reduced from the raw data recorded for every squid sampled. Raw data can be provided in spreadsheet format by the PI on request.

BCO-DMO data processing:
- modified parameter names to conform with BCO-DMO naming conventions;
- changed positive degrees west longitude to negative degrees east;
- added min/max columns based on the existing range columns;
- re-formatted range columns;
- replaced "-" with "nd" to indicate "no data".

More information about this dataset deployment

Funding

Award Number	Funding Source
OCE-1338973	NSF Division of Ocean Sciences

Instruments

None available yet

Parameters

Supplied Name	Supplied description	Supplied Units	Standard Name
date	Date of sampling (GMT).	mm/dd/yyyy	date
day_or_night	Indicates if sampling was done during local day or night.	text	time_of_day
lat	Latitude of sampling. Positive = North.	decimal degrees	lat
lon	Longitude of sampling. Positive = East.	decimal degrees	lon
jig_station	Jigging station; cross-referenced to CTD cast locations.	text	no_bcodmo_term
N	Number of squid sampled.	integer	no_bcodmo_term
DML_mean	Mean dorsal mantle length (DML).	centimeters (cm)	no_bcodmo_term
DML_sd	Standard deviation of mean dorsal mantle length (DML).	centimeters (cm)	no_bcodmo_term
DML_range	Range of dorsal mantle length (DML).	centimeters (cm)	no_bcodmo_term
DML_min	Minimum dorsal mantle length (DML).	centimeters (cm)	no_bcodmo_term
DML_max	Maximum dorsal mantle length (DML).	centimeters (cm)	no_bcodmo_term
mass_mean	Mean mass.	kilograms (kg)	no_bcodmo_term
mass_sd	Standard deviation of mean mass.	kilograms (kg)	no_bcodmo_term
mass_range	Range of mass.	kilograms (kg)	no_bcodmo_term
mass_min	Minimum mass.	kilograms (kg)	no_bcodmo_term
mass_max	Maximum mass.	kilograms (kg)	no_bcodmo_term
maturity_mean	Mean sexual maturity state (1-5).	Sexual maturity state 1-5	no_bcodmo_term
maturity_sd	Standard deviation of mean sexual maturity state.	Sexual maturity state 1-5	no_bcodmo_term
maturity_range	Range of sexual maturity state.	Sexual maturity state 1-5	no_bcodmo_term
maturity_min	Minimum sexual maturity state.	Sexual maturity state 1-5	no_bcodmo_term
maturity_max	Maximum sexual maturity state.	Sexual maturity state 1-5	no_bcodmo_term
female_pcnt	Percent female.	percentage (%)	no_bcodmo_term
female_mature	?	fraction	no_bcodmo_term
male_pcnt	Percent male.	percentage (%)	no_bcodmo_term
male_mature	?	fraction	no_bcodmo_term

Database

Contribute Data

Dataset: Squid Summary BIPXII
Deployment: BIPXII_10_2013

Dataset acquisition description

Dataset Processing Description

Database

Contribute Data

Dataset: Squid Summary BIPXIIDeployment: BIPXII_10_2013

Dataset acquisition description

Dataset Processing Description

Dataset: Squid Summary BIPXII
Deployment: BIPXII_10_2013